Vendor dependencies

Signed-off-by: Knut Ahlers <knut@ahlers.me>

Gopkg.lock

@@ -0,0 +1,79 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  name = "github.com/Luzifer/rconfig"
+  packages = ["."]
+  revision = "7aef1d393c1e2d0758901853b59981c7adc67c7e"
+  version = "v1.2.0"
+
+[[projects]]
+  name = "github.com/eclipse/paho.mqtt.golang"
+  packages = [
+    ".",
+    "packets"
+  ]
+  revision = "36d01c2b4cbeb3d2a12063e4880ce30800af9560"
+  version = "v1.1.1"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/jacobsa/go-serial"
+  packages = ["serial"]
+  revision = "15cf729a72d49e837fa047a4142fa6e4d5ab45a1"
+
+[[projects]]
+  name = "github.com/sirupsen/logrus"
+  packages = ["."]
+  revision = "c155da19408a8799da419ed3eeb0cb5db0ad5dbc"
+  version = "v1.0.5"
+
+[[projects]]
+  name = "github.com/spf13/pflag"
+  packages = ["."]
+  revision = "583c0c0531f06d5278b7d917446061adc344b5cd"
+  version = "v1.0.1"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/crypto"
+  packages = ["ssh/terminal"]
+  revision = "a49355c7e3f8fe157a85be2f77e6e269a0f89602"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/net"
+  packages = [
+    "internal/socks",
+    "proxy",
+    "websocket"
+  ]
+  revision = "32a936f46389aa10549d60bd7833e54b01685d09"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/sys"
+  packages = [
+    "unix",
+    "windows"
+  ]
+  revision = "ce36f3865eeb42541ce3f87f32f8462c5687befa"
+
+[[projects]]
+  branch = "v2"
+  name = "gopkg.in/validator.v2"
+  packages = ["."]
+  revision = "135c24b11c19e52befcae2ec3fca5d9b78c4e98e"
+
+[[projects]]
+  name = "gopkg.in/yaml.v2"
+  packages = ["."]
+  revision = "5420a8b6744d3b0345ab293f6fcba19c978f1183"
+  version = "v2.2.1"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  inputs-digest = "3a4b313af768a901e5dcb03367153612296db8f525b38f88e5e4fda2f1c77032"
+  solver-name = "gps-cdcl"
+  solver-version = 1

Gopkg.toml

@@ -0,0 +1,46 @@
+# Gopkg.toml example
+#
+# Refer to https://golang.github.io/dep/docs/Gopkg.toml.html
+# for detailed Gopkg.toml documentation.
+#
+# required = ["github.com/user/thing/cmd/thing"]
+# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
+#
+# [[constraint]]
+#   name = "github.com/user/project"
+#   version = "1.0.0"
+#
+# [[constraint]]
+#   name = "github.com/user/project2"
+#   branch = "dev"
+#   source = "github.com/myfork/project2"
+#
+# [[override]]
+#   name = "github.com/x/y"
+#   version = "2.4.0"
+#
+# [prune]
+#   non-go = false
+#   go-tests = true
+#   unused-packages = true
+
+
+[[constraint]]
+  name = "github.com/Luzifer/rconfig"
+  version = "1.2.0"
+
+[[constraint]]
+  name = "github.com/eclipse/paho.mqtt.golang"
+  version = "1.1.1"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/jacobsa/go-serial"
+
+[[constraint]]
+  name = "github.com/sirupsen/logrus"
+  version = "1.0.5"
+
+[prune]
+  go-tests = true
+  unused-packages = true

vendor/github.com/Luzifer/rconfig/.travis.yml

@@ -0,0 +1,8 @@
+language: go
+
+go:
+  - 1.6
+  - 1.7
+  - tip
+
+script: go test -v -race -cover ./...

vendor/github.com/Luzifer/rconfig/History.md

@@ -0,0 +1,9 @@
+# 1.2.0 / 2017-06-19
+
+  * Add ParseAndValidate method
+
+# 1.1.0 / 2016-06-28
+
+  * Support time.Duration config parameters
+  * Added goreportcard badge
+  * Added testcase for using bool with ENV and default

vendor/github.com/Luzifer/rconfig/LICENSE

@@ -0,0 +1,13 @@
+Copyright 2015 Knut Ahlers <knut@ahlers.me>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

vendor/github.com/Luzifer/rconfig/README.md

@@ -0,0 +1,87 @@
+[![Build Status](https://travis-ci.org/Luzifer/rconfig.svg?branch=master)](https://travis-ci.org/Luzifer/rconfig)
+[![License: Apache v2.0](https://badge.luzifer.io/v1/badge?color=5d79b5&title=license&text=Apache+v2.0)](http://www.apache.org/licenses/LICENSE-2.0)
+[![Documentation](https://badge.luzifer.io/v1/badge?title=godoc&text=reference)](https://godoc.org/github.com/Luzifer/rconfig)
+[![Go Report](http://goreportcard.com/badge/Luzifer/rconfig)](http://goreportcard.com/report/Luzifer/rconfig)
+
+## Description
+
+> Package rconfig implements a CLI configuration reader with struct-embedded defaults, environment variables and posix compatible flag parsing using the [pflag](https://github.com/spf13/pflag) library.
+
+## Installation
+
+Install by running:
+
+```
+go get -u github.com/Luzifer/rconfig
+```
+
+OR fetch a specific version:
+
+```
+go get -u gopkg.in/luzifer/rconfig.v1
+```
+
+Run tests by running:
+
+```
+go test -v -race -cover github.com/Luzifer/rconfig
+```
+
+## Usage
+
+A very simple usecase is to just configure a struct inside the vars section of your `main.go` and to parse the commandline flags from the `main()` function:
+
+```go
+package main
+
+import (
+  "fmt"
+  "github.com/Luzifer/rconfig"
+)
+
+var (
+  cfg = struct {
+    Username string `default:"unknown" flag:"user" description:"Your name"`
+    Details  struct {
+      Age int `default:"25" flag:"age" env:"age" description:"Your age"`
+    }
+  }{}
+)
+
+func main() {
+  rconfig.Parse(&cfg)
+
+  fmt.Printf("Hello %s, happy birthday for your %dth birthday.",
+    cfg.Username,
+    cfg.Details.Age)
+}
+```
+
+### Provide variable defaults by using a file
+
+Given you have a file `~/.myapp.yml` containing some secrets or usernames (for the example below username is assumed to be "luzifer") as a default configuration for your application you can use this source code to load the defaults from that file using the `vardefault` tag in your configuration struct.
+
+The order of the directives (lower number = higher precedence):
+
+1. Flags provided in command line
+1. Environment variables
+1. Variable defaults (`vardefault` tag in the struct)
+1. `default` tag in the struct
+
+```go
+var cfg = struct {
+  Username string `vardefault:"username" flag:"username" description:"Your username"`
+}
+
+func main() {
+  rconfig.SetVariableDefaults(rconfig.VarDefaultsFromYAMLFile("~/.myapp.yml"))
+  rconfig.Parse(&cfg)
+
+  fmt.Printf("Username = %s", cfg.Username)
+  // Output: Username = luzifer
+}
+```
+
+## More info
+
+You can see the full reference documentation of the rconfig package [at godoc.org](https://godoc.org/github.com/Luzifer/rconfig), or through go's standard documentation system by running `godoc -http=:6060` and browsing to [http://localhost:6060/pkg/github.com/Luzifer/rconfig](http://localhost:6060/pkg/github.com/Luzifer/rconfig) after installation.

vendor/github.com/Luzifer/rconfig/config.go

@@ -0,0 +1,356 @@
+// Package rconfig implements a CLI configuration reader with struct-embedded
+// defaults, environment variables and posix compatible flag parsing using
+// the pflag library.
+package rconfig
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"reflect"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/spf13/pflag"
+	validator "gopkg.in/validator.v2"
+)
+
+var (
+	fs               *pflag.FlagSet
+	variableDefaults map[string]string
+)
+
+func init() {
+	variableDefaults = make(map[string]string)
+}
+
+// Parse takes the pointer to a struct filled with variables which should be read
+// from ENV, default or flag. The precedence in this is flag > ENV > default. So
+// if a flag is specified on the CLI it will overwrite the ENV and otherwise ENV
+// overwrites the default specified.
+//
+// For your configuration struct you can use the following struct-tags to control
+// the behavior of rconfig:
+//
+//     default: Set a default value
+//     vardefault: Read the default value from the variable defaults
+//     env: Read the value from this environment variable
+//     flag: Flag to read in format "long,short" (for example "listen,l")
+//     description: A help text for Usage output to guide your users
+//
+// The format you need to specify those values you can see in the example to this
+// function.
+//
+func Parse(config interface{}) error {
+	return parse(config, nil)
+}
+
+// ParseAndValidate works exactly like Parse but implements an additional run of
+// the go-validator package on the configuration struct. Therefore additonal struct
+// tags are supported like described in the readme file of the go-validator package:
+//
+// https://github.com/go-validator/validator/tree/v2#usage
+func ParseAndValidate(config interface{}) error {
+	return parseAndValidate(config, nil)
+}
+
+// Args returns the non-flag command-line arguments.
+func Args() []string {
+	return fs.Args()
+}
+
+// Usage prints a basic usage with the corresponding defaults for the flags to
+// os.Stdout. The defaults are derived from the `default` struct-tag and the ENV.
+func Usage() {
+	if fs != nil && fs.Parsed() {
+		fmt.Fprintf(os.Stderr, "Usage of %s:\n", os.Args[0])
+		fs.PrintDefaults()
+	}
+}
+
+// SetVariableDefaults presets the parser with a map of default values to be used
+// when specifying the vardefault tag
+func SetVariableDefaults(defaults map[string]string) {
+	variableDefaults = defaults
+}
+
+func parseAndValidate(in interface{}, args []string) error {
+	if err := parse(in, args); err != nil {
+		return err
+	}
+
+	return validator.Validate(in)
+}
+
+func parse(in interface{}, args []string) error {
+	if args == nil {
+		args = os.Args
+	}
+
+	fs = pflag.NewFlagSet(os.Args[0], pflag.ExitOnError)
+	if err := execTags(in, fs); err != nil {
+		return err
+	}
+
+	return fs.Parse(args)
+}
+
+func execTags(in interface{}, fs *pflag.FlagSet) error {
+	if reflect.TypeOf(in).Kind() != reflect.Ptr {
+		return errors.New("Calling parser with non-pointer")
+	}
+
+	if reflect.ValueOf(in).Elem().Kind() != reflect.Struct {
+		return errors.New("Calling parser with pointer to non-struct")
+	}
+
+	st := reflect.ValueOf(in).Elem()
+	for i := 0; i < st.NumField(); i++ {
+		valField := st.Field(i)
+		typeField := st.Type().Field(i)
+
+		if typeField.Tag.Get("default") == "" && typeField.Tag.Get("env") == "" && typeField.Tag.Get("flag") == "" && typeField.Type.Kind() != reflect.Struct {
+			// None of our supported tags is present and it's not a sub-struct
+			continue
+		}
+
+		value := varDefault(typeField.Tag.Get("vardefault"), typeField.Tag.Get("default"))
+		value = envDefault(typeField.Tag.Get("env"), value)
+		parts := strings.Split(typeField.Tag.Get("flag"), ",")
+
+		switch typeField.Type {
+		case reflect.TypeOf(time.Duration(0)):
+			v, err := time.ParseDuration(value)
+			if err != nil {
+				if value == "" {
+					v = time.Duration(0)
+				} else {
+					return err
+				}
+			}
+
+			if typeField.Tag.Get("flag") != "" {
+				if len(parts) == 1 {
+					fs.DurationVar(valField.Addr().Interface().(*time.Duration), parts[0], v, typeField.Tag.Get("description"))
+				} else {
+					fs.DurationVarP(valField.Addr().Interface().(*time.Duration), parts[0], parts[1], v, typeField.Tag.Get("description"))
+				}
+			} else {
+				valField.Set(reflect.ValueOf(v))
+			}
+			continue
+		}
+
+		switch typeField.Type.Kind() {
+		case reflect.String:
+			if typeField.Tag.Get("flag") != "" {
+				if len(parts) == 1 {
+					fs.StringVar(valField.Addr().Interface().(*string), parts[0], value, typeField.Tag.Get("description"))
+				} else {
+					fs.StringVarP(valField.Addr().Interface().(*string), parts[0], parts[1], value, typeField.Tag.Get("description"))
+				}
+			} else {
+				valField.SetString(value)
+			}
+
+		case reflect.Bool:
+			v := value == "true"
+			if typeField.Tag.Get("flag") != "" {
+				if len(parts) == 1 {
+					fs.BoolVar(valField.Addr().Interface().(*bool), parts[0], v, typeField.Tag.Get("description"))
+				} else {
+					fs.BoolVarP(valField.Addr().Interface().(*bool), parts[0], parts[1], v, typeField.Tag.Get("description"))
+				}
+			} else {
+				valField.SetBool(v)
+			}
+
+		case reflect.Int, reflect.Int8, reflect.Int32, reflect.Int64:
+			vt, err := strconv.ParseInt(value, 10, 64)
+			if err != nil {
+				if value == "" {
+					vt = 0
+				} else {
+					return err
+				}
+			}
+			if typeField.Tag.Get("flag") != "" {
+				registerFlagInt(typeField.Type.Kind(), fs, valField.Addr().Interface(), parts, vt, typeField.Tag.Get("description"))
+			} else {
+				valField.SetInt(vt)
+			}
+
+		case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+			vt, err := strconv.ParseUint(value, 10, 64)
+			if err != nil {
+				if value == "" {
+					vt = 0
+				} else {
+					return err
+				}
+			}
+			if typeField.Tag.Get("flag") != "" {
+				registerFlagUint(typeField.Type.Kind(), fs, valField.Addr().Interface(), parts, vt, typeField.Tag.Get("description"))
+			} else {
+				valField.SetUint(vt)
+			}
+
+		case reflect.Float32, reflect.Float64:
+			vt, err := strconv.ParseFloat(value, 64)
+			if err != nil {
+				if value == "" {
+					vt = 0.0
+				} else {
+					return err
+				}
+			}
+			if typeField.Tag.Get("flag") != "" {
+				registerFlagFloat(typeField.Type.Kind(), fs, valField.Addr().Interface(), parts, vt, typeField.Tag.Get("description"))
+			} else {
+				valField.SetFloat(vt)
+			}
+
+		case reflect.Struct:
+			if err := execTags(valField.Addr().Interface(), fs); err != nil {
+				return err
+			}
+
+		case reflect.Slice:
+			switch typeField.Type.Elem().Kind() {
+			case reflect.Int:
+				def := []int{}
+				for _, v := range strings.Split(value, ",") {
+					it, err := strconv.ParseInt(strings.TrimSpace(v), 10, 64)
+					if err != nil {
+						return err
+					}
+					def = append(def, int(it))
+				}
+				if len(parts) == 1 {
+					fs.IntSliceVar(valField.Addr().Interface().(*[]int), parts[0], def, typeField.Tag.Get("description"))
+				} else {
+					fs.IntSliceVarP(valField.Addr().Interface().(*[]int), parts[0], parts[1], def, typeField.Tag.Get("description"))
+				}
+			case reflect.String:
+				del := typeField.Tag.Get("delimiter")
+				if len(del) == 0 {
+					del = ","
+				}
+				def := strings.Split(value, del)
+				if len(parts) == 1 {
+					fs.StringSliceVar(valField.Addr().Interface().(*[]string), parts[0], def, typeField.Tag.Get("description"))
+				} else {
+					fs.StringSliceVarP(valField.Addr().Interface().(*[]string), parts[0], parts[1], def, typeField.Tag.Get("description"))
+				}
+			}
+		}
+	}
+
+	return nil
+}
+
+func registerFlagFloat(t reflect.Kind, fs *pflag.FlagSet, field interface{}, parts []string, vt float64, desc string) {
+	switch t {
+	case reflect.Float32:
+		if len(parts) == 1 {
+			fs.Float32Var(field.(*float32), parts[0], float32(vt), desc)
+		} else {
+			fs.Float32VarP(field.(*float32), parts[0], parts[1], float32(vt), desc)
+		}
+	case reflect.Float64:
+		if len(parts) == 1 {
+			fs.Float64Var(field.(*float64), parts[0], float64(vt), desc)
+		} else {
+			fs.Float64VarP(field.(*float64), parts[0], parts[1], float64(vt), desc)
+		}
+	}
+}
+
+func registerFlagInt(t reflect.Kind, fs *pflag.FlagSet, field interface{}, parts []string, vt int64, desc string) {
+	switch t {
+	case reflect.Int:
+		if len(parts) == 1 {
+			fs.IntVar(field.(*int), parts[0], int(vt), desc)
+		} else {
+			fs.IntVarP(field.(*int), parts[0], parts[1], int(vt), desc)
+		}
+	case reflect.Int8:
+		if len(parts) == 1 {
+			fs.Int8Var(field.(*int8), parts[0], int8(vt), desc)
+		} else {
+			fs.Int8VarP(field.(*int8), parts[0], parts[1], int8(vt), desc)
+		}
+	case reflect.Int32:
+		if len(parts) == 1 {
+			fs.Int32Var(field.(*int32), parts[0], int32(vt), desc)
+		} else {
+			fs.Int32VarP(field.(*int32), parts[0], parts[1], int32(vt), desc)
+		}
+	case reflect.Int64:
+		if len(parts) == 1 {
+			fs.Int64Var(field.(*int64), parts[0], int64(vt), desc)
+		} else {
+			fs.Int64VarP(field.(*int64), parts[0], parts[1], int64(vt), desc)
+		}
+	}
+}
+
+func registerFlagUint(t reflect.Kind, fs *pflag.FlagSet, field interface{}, parts []string, vt uint64, desc string) {
+	switch t {
+	case reflect.Uint:
+		if len(parts) == 1 {
+			fs.UintVar(field.(*uint), parts[0], uint(vt), desc)
+		} else {
+			fs.UintVarP(field.(*uint), parts[0], parts[1], uint(vt), desc)
+		}
+	case reflect.Uint8:
+		if len(parts) == 1 {
+			fs.Uint8Var(field.(*uint8), parts[0], uint8(vt), desc)
+		} else {
+			fs.Uint8VarP(field.(*uint8), parts[0], parts[1], uint8(vt), desc)
+		}
+	case reflect.Uint16:
+		if len(parts) == 1 {
+			fs.Uint16Var(field.(*uint16), parts[0], uint16(vt), desc)
+		} else {
+			fs.Uint16VarP(field.(*uint16), parts[0], parts[1], uint16(vt), desc)
+		}
+	case reflect.Uint32:
+		if len(parts) == 1 {
+			fs.Uint32Var(field.(*uint32), parts[0], uint32(vt), desc)
+		} else {
+			fs.Uint32VarP(field.(*uint32), parts[0], parts[1], uint32(vt), desc)
+		}
+	case reflect.Uint64:
+		if len(parts) == 1 {
+			fs.Uint64Var(field.(*uint64), parts[0], uint64(vt), desc)
+		} else {
+			fs.Uint64VarP(field.(*uint64), parts[0], parts[1], uint64(vt), desc)
+		}
+	}
+}
+
+func envDefault(env, def string) string {
+	value := def
+
+	if env != "" {
+		if e := os.Getenv(env); e != "" {
+			value = e
+		}
+	}
+
+	return value
+}
+
+func varDefault(name, def string) string {
+	value := def
+
+	if name != "" {
+		if v, ok := variableDefaults[name]; ok {
+			value = v
+		}
+	}
+
+	return value
+}

vendor/github.com/Luzifer/rconfig/vardefault_providers.go

@@ -0,0 +1,27 @@
+package rconfig
+
+import (
+	"io/ioutil"
+
+	"gopkg.in/yaml.v2"
+)
+
+// VarDefaultsFromYAMLFile reads contents of a file and calls VarDefaultsFromYAML
+func VarDefaultsFromYAMLFile(filename string) map[string]string {
+	data, err := ioutil.ReadFile(filename)
+	if err != nil {
+		return make(map[string]string)
+	}
+
+	return VarDefaultsFromYAML(data)
+}
+
+// VarDefaultsFromYAML creates a vardefaults map from YAML raw data
+func VarDefaultsFromYAML(in []byte) map[string]string {
+	out := make(map[string]string)
+	err := yaml.Unmarshal(in, &out)
+	if err != nil {
+		return make(map[string]string)
+	}
+	return out
+}

vendor/github.com/eclipse/paho.mqtt.golang/.gitignore

@@ -0,0 +1,36 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+
+*.msg
+*.lok
+
+samples/trivial
+samples/trivial2
+samples/sample
+samples/reconnect
+samples/ssl
+samples/custom_store
+samples/simple
+samples/stdinpub
+samples/stdoutsub
+samples/routing

vendor/github.com/eclipse/paho.mqtt.golang/CONTRIBUTING.md

@@ -0,0 +1,56 @@
+Contributing to Paho
+====================
+
+Thanks for your interest in this project.
+
+Project description:
+--------------------
+
+The Paho project has been created to provide scalable open-source implementations of open and standard messaging protocols aimed at new, existing, and emerging applications for Machine-to-Machine (M2M) and Internet of Things (IoT).
+Paho reflects the inherent physical and cost constraints of device connectivity. Its objectives include effective levels of decoupling between devices and applications, designed to keep markets open and encourage the rapid growth of scalable Web and Enterprise middleware and applications. Paho is being kicked off with MQTT publish/subscribe client implementations for use on embedded platforms, along with corresponding server support as determined by the community.
+
+- https://projects.eclipse.org/projects/technology.paho
+
+Developer resources:
+--------------------
+
+Information regarding source code management, builds, coding standards, and more.
+
+- https://projects.eclipse.org/projects/technology.paho/developer
+
+Contributor License Agreement:
+------------------------------
+
+Before your contribution can be accepted by the project, you need to create and electronically sign the Eclipse Foundation Contributor License Agreement (CLA).
+
+- http://www.eclipse.org/legal/CLA.php
+
+Contributing Code:
+------------------
+
+The Go client is developed in Github, see their documentation on the process of forking and pull requests; https://help.github.com/categories/collaborating-on-projects-using-pull-requests/
+
+Git commit messages should follow the style described here;
+
+http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html
+
+Contact:
+--------
+
+Contact the project developers via the project's "dev" list.
+
+- https://dev.eclipse.org/mailman/listinfo/paho-dev
+
+Search for bugs:
+----------------
+
+This project uses Github issues to track ongoing development and issues.
+
+- https://github.com/eclipse/paho.mqtt.golang/issues
+
+Create a new bug:
+-----------------
+
+Be sure to search for existing bugs before you create another one. Remember that contributions are always welcome!
+
+- https://github.com/eclipse/paho.mqtt.golang/issues

vendor/github.com/eclipse/paho.mqtt.golang/DISTRIBUTION

@@ -0,0 +1,15 @@
+
+
+Eclipse Distribution License - v 1.0
+
+Copyright (c) 2007, Eclipse Foundation, Inc. and its licensors.
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+    Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+    Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+    Neither the name of the Eclipse Foundation, Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. 
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/eclipse/paho.mqtt.golang/LICENSE

@@ -0,0 +1,87 @@
+Eclipse Public License - v 1.0
+
+THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC LICENSE ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
+
+1. DEFINITIONS
+
+"Contribution" means:
+
+a) in the case of the initial Contributor, the initial code and documentation distributed under this Agreement, and
+
+b) in the case of each subsequent Contributor:
+
+i) changes to the Program, and
+
+ii) additions to the Program;
+
+where such changes and/or additions to the Program originate from and are distributed by that particular Contributor. A Contribution 'originates' from a Contributor if it was added to the Program by such Contributor itself or anyone acting on such Contributor's behalf. Contributions do not include additions to the Program which: (i) are separate modules of software distributed in conjunction with the Program under their own license agreement, and (ii) are not derivative works of the Program.
+
+"Contributor" means any person or entity that distributes the Program.
+
+"Licensed Patents" mean patent claims licensable by a Contributor which are necessarily infringed by the use or sale of its Contribution alone or when combined with the Program.
+
+"Program" means the Contributions distributed in accordance with this Agreement.
+
+"Recipient" means anyone who receives the Program under this Agreement, including all Contributors.
+
+2. GRANT OF RIGHTS
+
+a) Subject to the terms of this Agreement, each Contributor hereby grants Recipient a non-exclusive, worldwide, royalty-free copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, distribute and sublicense the Contribution of such Contributor, if any, and such derivative works, in source code and object code form.
+
+b) Subject to the terms of this Agreement, each Contributor hereby grants Recipient a non-exclusive, worldwide, royalty-free patent license under Licensed Patents to make, use, sell, offer to sell, import and otherwise transfer the Contribution of such Contributor, if any, in source code and object code form. This patent license shall apply to the combination of the Contribution and the Program if, at the time the Contribution is added by the Contributor, such addition of the Contribution causes such combination to be covered by the Licensed Patents. The patent license shall not apply to any other combinations which include the Contribution. No hardware per se is licensed hereunder.
+
+c) Recipient understands that although each Contributor grants the licenses to its Contributions set forth herein, no assurances are provided by any Contributor that the Program does not infringe the patent or other intellectual property rights of any other entity. Each Contributor disclaims any liability to Recipient for claims brought by any other entity based on infringement of intellectual property rights or otherwise. As a condition to exercising the rights and licenses granted hereunder, each Recipient hereby assumes sole responsibility to secure any other intellectual property rights needed, if any. For example, if a third party patent license is required to allow Recipient to distribute the Program, it is Recipient's responsibility to acquire that license before distributing the Program.
+
+d) Each Contributor represents that to its knowledge it has sufficient copyright rights in its Contribution, if any, to grant the copyright license set forth in this Agreement.
+
+3. REQUIREMENTS
+
+A Contributor may choose to distribute the Program in object code form under its own license agreement, provided that:
+
+a) it complies with the terms and conditions of this Agreement; and
+
+b) its license agreement:
+
+i) effectively disclaims on behalf of all Contributors all warranties and conditions, express and implied, including warranties or conditions of title and non-infringement, and implied warranties or conditions of merchantability and fitness for a particular purpose;
+
+ii) effectively excludes on behalf of all Contributors all liability for damages, including direct, indirect, special, incidental and consequential damages, such as lost profits;
+
+iii) states that any provisions which differ from this Agreement are offered by that Contributor alone and not by any other party; and
+
+iv) states that source code for the Program is available from such Contributor, and informs licensees how to obtain it in a reasonable manner on or through a medium customarily used for software exchange.
+
+When the Program is made available in source code form:
+
+a) it must be made available under this Agreement; and
+
+b) a copy of this Agreement must be included with each copy of the Program.
+
+Contributors may not remove or alter any copyright notices contained within the Program.
+
+Each Contributor must identify itself as the originator of its Contribution, if any, in a manner that reasonably allows subsequent Recipients to identify the originator of the Contribution.
+
+4. COMMERCIAL DISTRIBUTION
+
+Commercial distributors of software may accept certain responsibilities with respect to end users, business partners and the like. While this license is intended to facilitate the commercial use of the Program, the Contributor who includes the Program in a commercial product offering should do so in a manner which does not create potential liability for other Contributors. Therefore, if a Contributor includes the Program in a commercial product offering, such Contributor ("Commercial Contributor") hereby agrees to defend and indemnify every other Contributor ("Indemnified Contributor") against any losses, damages and costs (collectively "Losses") arising from claims, lawsuits and other legal actions brought by a third party against the Indemnified Contributor to the extent caused by the acts or omissions of such Commercial Contributor in connection with its distribution of the Program in a commercial product offering. The obligations in this section do not apply to any claims or Losses relating to any actual or alleged intellectual property infringement. In order to qualify, an Indemnified Contributor must: a) promptly notify the Commercial Contributor in writing of such claim, and b) allow the Commercial Contributor to control, and cooperate with the Commercial Contributor in, the defense and any related settlement negotiations. The Indemnified Contributor may participate in any such claim at its own expense.
+
+For example, a Contributor might include the Program in a commercial product offering, Product X. That Contributor is then a Commercial Contributor. If that Commercial Contributor then makes performance claims, or offers warranties related to Product X, those performance claims and warranties are such Commercial Contributor's responsibility alone. Under this section, the Commercial Contributor would have to defend claims against the other Contributors related to those performance claims and warranties, and if a court requires any other Contributor to pay any damages as a result, the Commercial Contributor must pay those damages.
+
+5. NO WARRANTY
+
+EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is solely responsible for determining the appropriateness of using and distributing the Program and assumes all risks associated with its exercise of rights under this Agreement , including but not limited to the risks and costs of program errors, compliance with applicable laws, damage to or loss of data, programs or equipment, and unavailability or interruption of operations.
+
+6. DISCLAIMER OF LIABILITY
+
+EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+7. GENERAL
+
+If any provision of this Agreement is invalid or unenforceable under applicable law, it shall not affect the validity or enforceability of the remainder of the terms of this Agreement, and without further action by the parties hereto, such provision shall be reformed to the minimum extent necessary to make such provision valid and enforceable.
+
+If Recipient institutes patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Program itself (excluding combinations of the Program with other software or hardware) infringes such Recipient's patent(s), then such Recipient's rights granted under Section 2(b) shall terminate as of the date such litigation is filed.
+
+All Recipient's rights under this Agreement shall terminate if it fails to comply with any of the material terms or conditions of this Agreement and does not cure such failure in a reasonable period of time after becoming aware of such noncompliance. If all Recipient's rights under this Agreement terminate, Recipient agrees to cease use and distribution of the Program as soon as reasonably practicable. However, Recipient's obligations under this Agreement and any licenses granted by Recipient relating to the Program shall continue and survive.
+
+Everyone is permitted to copy and distribute copies of this Agreement, but in order to avoid inconsistency the Agreement is copyrighted and may only be modified in the following manner. The Agreement Steward reserves the right to publish new versions (including revisions) of this Agreement from time to time. No one other than the Agreement Steward has the right to modify this Agreement. The Eclipse Foundation is the initial Agreement Steward. The Eclipse Foundation may assign the responsibility to serve as the Agreement Steward to a suitable separate entity. Each new version of the Agreement will be given a distinguishing version number. The Program (including Contributions) may always be distributed subject to the version of the Agreement under which it was received. In addition, after a new version of the Agreement is published, Contributor may elect to distribute the Program (including its Contributions) under the new version. Except as expressly stated in Sections 2(a) and 2(b) above, Recipient receives no rights or licenses to the intellectual property of any Contributor under this Agreement, whether expressly, by implication, estoppel or otherwise. All rights in the Program not expressly granted under this Agreement are reserved.
+
+This Agreement is governed by the laws of the State of New York and the intellectual property laws of the United States of America. No party to this Agreement will bring a legal action under this Agreement more than one year after the cause of action arose. Each party waives its rights to a jury trial in any resulting litigation.

vendor/github.com/eclipse/paho.mqtt.golang/README.md

@@ -0,0 +1,67 @@
+
+[![GoDoc](https://godoc.org/github.com/eclipse/paho.mqtt.golang?status.svg)](https://godoc.org/github.com/eclipse/paho.mqtt.golang)
+[![Go Report Card](https://goreportcard.com/badge/github.com/eclipse/paho.mqtt.golang)](https://goreportcard.com/report/github.com/eclipse/paho.mqtt.golang)
+
+Eclipse Paho MQTT Go client
+===========================
+
+
+This repository contains the source code for the [Eclipse Paho](http://eclipse.org/paho) MQTT Go client library. 
+
+This code builds a library which enable applications to connect to an [MQTT](http://mqtt.org) broker to publish messages, and to subscribe to topics and receive published messages.
+
+This library supports a fully asynchronous mode of operation.
+
+
+Installation and Build
+----------------------
+
+This client is designed to work with the standard Go tools, so installation is as easy as:
+
+```
+go get github.com/eclipse/paho.mqtt.golang
+```
+
+The client depends on Google's [websockets](https://godoc.org/golang.org/x/net/websocket) and [proxy](https://godoc.org/golang.org/x/net/proxy) package, 
+also easily installed with the commands:
+
+```
+go get golang.org/x/net/websocket
+go get golang.org/x/net/proxy
+```
+
+
+Usage and API
+-------------
+
+Detailed API documentation is available by using to godoc tool, or can be browsed online
+using the [godoc.org](http://godoc.org/github.com/eclipse/paho.mqtt.golang) service.
+
+Make use of the library by importing it in your Go client source code. For example,
+```
+import "github.com/eclipse/paho.mqtt.golang"
+```
+
+Samples are available in the `cmd` directory for reference.
+
+
+Runtime tracing
+---------------
+
+Tracing is enabled by assigning logs (from the Go log package) to the logging endpoints, ERROR, CRITICAL, WARN and DEBUG
+
+
+Reporting bugs
+--------------
+
+Please report bugs by raising issues for this project in github https://github.com/eclipse/paho.mqtt.golang/issues 
+
+
+More information
+----------------
+
+Discussion of the Paho clients takes place on the [Eclipse paho-dev mailing list](https://dev.eclipse.org/mailman/listinfo/paho-dev).
+
+General questions about the MQTT protocol are discussed in the [MQTT Google Group](https://groups.google.com/forum/?hl=en-US&fromgroups#!forum/mqtt).
+
+There is much more information available via the [MQTT community site](http://mqtt.org).

vendor/github.com/eclipse/paho.mqtt.golang/about.html

@@ -0,0 +1,41 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml"><head>
+<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
+<title>About</title>
+</head>
+<body lang="EN-US">
+<h2>About This Content</h2>
+ 
+<p><em>December 9, 2013</em></p>	
+<h3>License</h3>
+
+<p>The Eclipse Foundation makes available all content in this plug-in ("Content").  Unless otherwise 
+indicated below, the Content is provided to you under the terms and conditions of the
+Eclipse Public License Version 1.0 ("EPL") and Eclipse Distribution License Version 1.0 ("EDL").
+A copy of the EPL is available at 
+<a href="http://www.eclipse.org/legal/epl-v10.html">http://www.eclipse.org/legal/epl-v10.html</a> 
+and a copy of the EDL is available at 
+<a href="http://www.eclipse.org/org/documents/edl-v10.php">http://www.eclipse.org/org/documents/edl-v10.php</a>. 
+For purposes of the EPL, "Program" will mean the Content.</p>
+
+<p>If you did not receive this Content directly from the Eclipse Foundation, the Content is 
+being redistributed by another party ("Redistributor") and different terms and conditions may
+apply to your use of any object code in the Content.  Check the Redistributor's license that was 
+provided with the Content.  If no such license exists, contact the Redistributor.  Unless otherwise
+indicated below, the terms and conditions of the EPL still apply to any source code in the Content
+and such source code may be obtained at <a href="http://www.eclipse.org/">http://www.eclipse.org</a>.</p>
+
+		
+		<h3>Third Party Content</h3>
+		<p>The Content includes items that have been sourced from third parties as set out below. If you 
+		did not receive this Content directly from the Eclipse Foundation, the following is provided 
+		for informational purposes only, and you should look to the Redistributor's license for 
+		terms and conditions of use.</p>
+		<p><em>
+		<strong>None</strong> <br><br>
+		<br><br> 
+		</em></p>
+
+
+
+</body></html>

vendor/github.com/eclipse/paho.mqtt.golang/client.go

@@ -0,0 +1,637 @@
+/*
+ * Copyright (c) 2013 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Seth Hoenig
+ *    Allan Stockdill-Mander
+ *    Mike Robertson
+ */
+
+// Package mqtt provides an MQTT v3.1.1 client library.
+package mqtt
+
+import (
+	"errors"
+	"fmt"
+	"net"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"github.com/eclipse/paho.mqtt.golang/packets"
+)
+
+const (
+	disconnected uint32 = iota
+	connecting
+	reconnecting
+	connected
+)
+
+// Client is the interface definition for a Client as used by this
+// library, the interface is primarily to allow mocking tests.
+//
+// It is an MQTT v3.1.1 client for communicating
+// with an MQTT server using non-blocking methods that allow work
+// to be done in the background.
+// An application may connect to an MQTT server using:
+//   A plain TCP socket
+//   A secure SSL/TLS socket
+//   A websocket
+// To enable ensured message delivery at Quality of Service (QoS) levels
+// described in the MQTT spec, a message persistence mechanism must be
+// used. This is done by providing a type which implements the Store
+// interface. For convenience, FileStore and MemoryStore are provided
+// implementations that should be sufficient for most use cases. More
+// information can be found in their respective documentation.
+// Numerous connection options may be specified by configuring a
+// and then supplying a ClientOptions type.
+type Client interface {
+	// IsConnected returns a bool signifying whether
+	// the client is connected or not.
+	IsConnected() bool
+	// Connect will create a connection to the message broker, by default
+	// it will attempt to connect at v3.1.1 and auto retry at v3.1 if that
+	// fails
+	Connect() Token
+	// Disconnect will end the connection with the server, but not before waiting
+	// the specified number of milliseconds to wait for existing work to be
+	// completed.
+	Disconnect(quiesce uint)
+	// Publish will publish a message with the specified QoS and content
+	// to the specified topic.
+	// Returns a token to track delivery of the message to the broker
+	Publish(topic string, qos byte, retained bool, payload interface{}) Token
+	// Subscribe starts a new subscription. Provide a MessageHandler to be executed when
+	// a message is published on the topic provided, or nil for the default handler
+	Subscribe(topic string, qos byte, callback MessageHandler) Token
+	// SubscribeMultiple starts a new subscription for multiple topics. Provide a MessageHandler to
+	// be executed when a message is published on one of the topics provided, or nil for the
+	// default handler
+	SubscribeMultiple(filters map[string]byte, callback MessageHandler) Token
+	// Unsubscribe will end the subscription from each of the topics provided.
+	// Messages published to those topics from other clients will no longer be
+	// received.
+	Unsubscribe(topics ...string) Token
+	// AddRoute allows you to add a handler for messages on a specific topic
+	// without making a subscription. For example having a different handler
+	// for parts of a wildcard subscription
+	AddRoute(topic string, callback MessageHandler)
+	// OptionsReader returns a ClientOptionsReader which is a copy of the clientoptions
+	// in use by the client.
+	OptionsReader() ClientOptionsReader
+}
+
+// client implements the Client interface
+type client struct {
+	lastSent        int64
+	lastReceived    int64
+	pingOutstanding int32
+	status          uint32
+	sync.RWMutex
+	messageIds
+	conn            net.Conn
+	ibound          chan packets.ControlPacket
+	obound          chan *PacketAndToken
+	oboundP         chan *PacketAndToken
+	msgRouter       *router
+	stopRouter      chan bool
+	incomingPubChan chan *packets.PublishPacket
+	errors          chan error
+	stop            chan struct{}
+	persist         Store
+	options         ClientOptions
+	workers         sync.WaitGroup
+}
+
+// NewClient will create an MQTT v3.1.1 client with all of the options specified
+// in the provided ClientOptions. The client must have the Connect method called
+// on it before it may be used. This is to make sure resources (such as a net
+// connection) are created before the application is actually ready.
+func NewClient(o *ClientOptions) Client {
+	c := &client{}
+	c.options = *o
+
+	if c.options.Store == nil {
+		c.options.Store = NewMemoryStore()
+	}
+	switch c.options.ProtocolVersion {
+	case 3, 4:
+		c.options.protocolVersionExplicit = true
+	default:
+		c.options.ProtocolVersion = 4
+		c.options.protocolVersionExplicit = false
+	}
+	c.persist = c.options.Store
+	c.status = disconnected
+	c.messageIds = messageIds{index: make(map[uint16]tokenCompletor)}
+	c.msgRouter, c.stopRouter = newRouter()
+	c.msgRouter.setDefaultHandler(c.options.DefaultPublishHandler)
+	if !c.options.AutoReconnect {
+		c.options.MessageChannelDepth = 0
+	}
+	return c
+}
+
+// AddRoute allows you to add a handler for messages on a specific topic
+// without making a subscription. For example having a different handler
+// for parts of a wildcard subscription
+func (c *client) AddRoute(topic string, callback MessageHandler) {
+	if callback != nil {
+		c.msgRouter.addRoute(topic, callback)
+	}
+}
+
+// IsConnected returns a bool signifying whether
+// the client is connected or not.
+func (c *client) IsConnected() bool {
+	c.RLock()
+	defer c.RUnlock()
+	status := atomic.LoadUint32(&c.status)
+	switch {
+	case status == connected:
+		return true
+	case c.options.AutoReconnect && status > disconnected:
+		return true
+	default:
+		return false
+	}
+}
+
+func (c *client) connectionStatus() uint32 {
+	c.RLock()
+	defer c.RUnlock()
+	status := atomic.LoadUint32(&c.status)
+	return status
+}
+
+func (c *client) setConnected(status uint32) {
+	c.Lock()
+	defer c.Unlock()
+	atomic.StoreUint32(&c.status, uint32(status))
+}
+
+//ErrNotConnected is the error returned from function calls that are
+//made when the client is not connected to a broker
+var ErrNotConnected = errors.New("Not Connected")
+
+// Connect will create a connection to the message broker, by default
+// it will attempt to connect at v3.1.1 and auto retry at v3.1 if that
+// fails
+func (c *client) Connect() Token {
+	var err error
+	t := newToken(packets.Connect).(*ConnectToken)
+	DEBUG.Println(CLI, "Connect()")
+
+	c.obound = make(chan *PacketAndToken, c.options.MessageChannelDepth)
+	c.oboundP = make(chan *PacketAndToken, c.options.MessageChannelDepth)
+	c.ibound = make(chan packets.ControlPacket)
+
+	go func() {
+		c.persist.Open()
+
+		c.setConnected(connecting)
+		var rc byte
+		cm := newConnectMsgFromOptions(&c.options)
+		protocolVersion := c.options.ProtocolVersion
+
+		for _, broker := range c.options.Servers {
+			c.options.ProtocolVersion = protocolVersion
+		CONN:
+			DEBUG.Println(CLI, "about to write new connect msg")
+			c.conn, err = openConnection(broker, &c.options.TLSConfig, c.options.ConnectTimeout)
+			if err == nil {
+				DEBUG.Println(CLI, "socket connected to broker")
+				switch c.options.ProtocolVersion {
+				case 3:
+					DEBUG.Println(CLI, "Using MQTT 3.1 protocol")
+					cm.ProtocolName = "MQIsdp"
+					cm.ProtocolVersion = 3
+				default:
+					DEBUG.Println(CLI, "Using MQTT 3.1.1 protocol")
+					c.options.ProtocolVersion = 4
+					cm.ProtocolName = "MQTT"
+					cm.ProtocolVersion = 4
+				}
+				cm.Write(c.conn)
+
+				rc = c.connect()
+				if rc != packets.Accepted {
+					if c.conn != nil {
+						c.conn.Close()
+						c.conn = nil
+					}
+					//if the protocol version was explicitly set don't do any fallback
+					if c.options.protocolVersionExplicit {
+						ERROR.Println(CLI, "Connecting to", broker, "CONNACK was not CONN_ACCEPTED, but rather", packets.ConnackReturnCodes[rc])
+						continue
+					}
+					if c.options.ProtocolVersion == 4 {
+						DEBUG.Println(CLI, "Trying reconnect using MQTT 3.1 protocol")
+						c.options.ProtocolVersion = 3
+						goto CONN
+					}
+				}
+				break
+			} else {
+				ERROR.Println(CLI, err.Error())
+				WARN.Println(CLI, "failed to connect to broker, trying next")
+				rc = packets.ErrNetworkError
+			}
+		}
+
+		if c.conn == nil {
+			ERROR.Println(CLI, "Failed to connect to a broker")
+			t.returnCode = rc
+			if rc != packets.ErrNetworkError {
+				t.err = packets.ConnErrors[rc]
+			} else {
+				t.err = fmt.Errorf("%s : %s", packets.ConnErrors[rc], err)
+			}
+			c.setConnected(disconnected)
+			c.persist.Close()
+			t.flowComplete()
+			return
+		}
+
+		c.options.protocolVersionExplicit = true
+
+		c.errors = make(chan error, 1)
+		c.stop = make(chan struct{})
+
+		if c.options.KeepAlive != 0 {
+			atomic.StoreInt32(&c.pingOutstanding, 0)
+			atomic.StoreInt64(&c.lastReceived, time.Now().Unix())
+			atomic.StoreInt64(&c.lastSent, time.Now().Unix())
+			c.workers.Add(1)
+			go keepalive(c)
+		}
+
+		c.incomingPubChan = make(chan *packets.PublishPacket, c.options.MessageChannelDepth)
+		c.msgRouter.matchAndDispatch(c.incomingPubChan, c.options.Order, c)
+
+		c.setConnected(connected)
+		DEBUG.Println(CLI, "client is connected")
+		if c.options.OnConnect != nil {
+			go c.options.OnConnect(c)
+		}
+
+		// Take care of any messages in the store
+		//var leftovers []Receipt
+		if c.options.CleanSession == false {
+			//leftovers = c.resume()
+		} else {
+			c.persist.Reset()
+		}
+
+		c.workers.Add(4)
+		go errorWatch(c)
+		go alllogic(c)
+		go outgoing(c)
+		go incoming(c)
+
+		DEBUG.Println(CLI, "exit startClient")
+		t.flowComplete()
+	}()
+	return t
+}
+
+// internal function used to reconnect the client when it loses its connection
+func (c *client) reconnect() {
+	DEBUG.Println(CLI, "enter reconnect")
+	var (
+		err error
+
+		rc    = byte(1)
+		sleep = time.Duration(1 * time.Second)
+	)
+
+	for rc != 0 && c.status != disconnected {
+		cm := newConnectMsgFromOptions(&c.options)
+
+		for _, broker := range c.options.Servers {
+			DEBUG.Println(CLI, "about to write new connect msg")
+			c.conn, err = openConnection(broker, &c.options.TLSConfig, c.options.ConnectTimeout)
+			if err == nil {
+				DEBUG.Println(CLI, "socket connected to broker")
+				switch c.options.ProtocolVersion {
+				case 3:
+					DEBUG.Println(CLI, "Using MQTT 3.1 protocol")
+					cm.ProtocolName = "MQIsdp"
+					cm.ProtocolVersion = 3
+				default:
+					DEBUG.Println(CLI, "Using MQTT 3.1.1 protocol")
+					cm.ProtocolName = "MQTT"
+					cm.ProtocolVersion = 4
+				}
+				cm.Write(c.conn)
+
+				rc = c.connect()
+				if rc != packets.Accepted {
+					c.conn.Close()
+					c.conn = nil
+					//if the protocol version was explicitly set don't do any fallback
+					if c.options.protocolVersionExplicit {
+						ERROR.Println(CLI, "Connecting to", broker, "CONNACK was not Accepted, but rather", packets.ConnackReturnCodes[rc])
+						continue
+					}
+				}
+				break
+			} else {
+				ERROR.Println(CLI, err.Error())
+				WARN.Println(CLI, "failed to connect to broker, trying next")
+				rc = packets.ErrNetworkError
+			}
+		}
+		if rc != 0 {
+			DEBUG.Println(CLI, "Reconnect failed, sleeping for", int(sleep.Seconds()), "seconds")
+			time.Sleep(sleep)
+			if sleep < c.options.MaxReconnectInterval {
+				sleep *= 2
+			}
+
+			if sleep > c.options.MaxReconnectInterval {
+				sleep = c.options.MaxReconnectInterval
+			}
+		}
+	}
+	// Disconnect() must have been called while we were trying to reconnect.
+	if c.connectionStatus() == disconnected {
+		DEBUG.Println(CLI, "Client moved to disconnected state while reconnecting, abandoning reconnect")
+		return
+	}
+
+	if c.options.KeepAlive != 0 {
+		atomic.StoreInt32(&c.pingOutstanding, 0)
+		atomic.StoreInt64(&c.lastReceived, time.Now().Unix())
+		atomic.StoreInt64(&c.lastSent, time.Now().Unix())
+		c.workers.Add(1)
+		go keepalive(c)
+	}
+
+	c.stop = make(chan struct{})
+
+	c.setConnected(connected)
+	DEBUG.Println(CLI, "client is reconnected")
+	if c.options.OnConnect != nil {
+		go c.options.OnConnect(c)
+	}
+
+	c.workers.Add(4)
+	go errorWatch(c)
+	go alllogic(c)
+	go outgoing(c)
+	go incoming(c)
+}
+
+// This function is only used for receiving a connack
+// when the connection is first started.
+// This prevents receiving incoming data while resume
+// is in progress if clean session is false.
+func (c *client) connect() byte {
+	DEBUG.Println(NET, "connect started")
+
+	ca, err := packets.ReadPacket(c.conn)
+	if err != nil {
+		ERROR.Println(NET, "connect got error", err)
+		return packets.ErrNetworkError
+	}
+	if ca == nil {
+		ERROR.Println(NET, "received nil packet")
+		return packets.ErrNetworkError
+	}
+
+	msg, ok := ca.(*packets.ConnackPacket)
+	if !ok {
+		ERROR.Println(NET, "received msg that was not CONNACK")
+		return packets.ErrNetworkError
+	}
+
+	DEBUG.Println(NET, "received connack")
+	return msg.ReturnCode
+}
+
+// Disconnect will end the connection with the server, but not before waiting
+// the specified number of milliseconds to wait for existing work to be
+// completed.
+func (c *client) Disconnect(quiesce uint) {
+	status := atomic.LoadUint32(&c.status)
+	if status == connected {
+		DEBUG.Println(CLI, "disconnecting")
+		c.setConnected(disconnected)
+
+		dm := packets.NewControlPacket(packets.Disconnect).(*packets.DisconnectPacket)
+		dt := newToken(packets.Disconnect)
+		c.oboundP <- &PacketAndToken{p: dm, t: dt}
+
+		// wait for work to finish, or quiesce time consumed
+		dt.WaitTimeout(time.Duration(quiesce) * time.Millisecond)
+	} else {
+		WARN.Println(CLI, "Disconnect() called but not connected (disconnected/reconnecting)")
+		c.setConnected(disconnected)
+	}
+
+	c.disconnect()
+}
+
+// ForceDisconnect will end the connection with the mqtt broker immediately.
+func (c *client) forceDisconnect() {
+	if !c.IsConnected() {
+		WARN.Println(CLI, "already disconnected")
+		return
+	}
+	c.setConnected(disconnected)
+	c.conn.Close()
+	DEBUG.Println(CLI, "forcefully disconnecting")
+	c.disconnect()
+}
+
+func (c *client) internalConnLost(err error) {
+	// Only do anything if this was called and we are still "connected"
+	// forceDisconnect can cause incoming/outgoing/alllogic to end with
+	// error from closing the socket but state will be "disconnected"
+	if c.IsConnected() {
+		c.closeStop()
+		c.conn.Close()
+		c.workers.Wait()
+		c.messageIds.cleanUp()
+		if c.options.AutoReconnect {
+			c.setConnected(reconnecting)
+			go c.reconnect()
+		} else {
+			c.setConnected(disconnected)
+		}
+		if c.options.OnConnectionLost != nil {
+			go c.options.OnConnectionLost(c, err)
+		}
+	}
+}
+
+func (c *client) closeStop() {
+	c.Lock()
+	defer c.Unlock()
+	select {
+	case <-c.stop:
+		DEBUG.Println("In disconnect and stop channel is already closed")
+	default:
+		close(c.stop)
+	}
+}
+
+func (c *client) closeConn() {
+	c.Lock()
+	defer c.Unlock()
+	if c.conn != nil {
+		c.conn.Close()
+	}
+}
+
+func (c *client) disconnect() {
+	c.closeStop()
+	c.closeConn()
+	c.workers.Wait()
+	c.messageIds.cleanUp()
+	close(c.stopRouter)
+	DEBUG.Println(CLI, "disconnected")
+	c.persist.Close()
+}
+
+// Publish will publish a message with the specified QoS and content
+// to the specified topic.
+// Returns a token to track delivery of the message to the broker
+func (c *client) Publish(topic string, qos byte, retained bool, payload interface{}) Token {
+	token := newToken(packets.Publish).(*PublishToken)
+	DEBUG.Println(CLI, "enter Publish")
+	switch {
+	case !c.IsConnected():
+		token.err = ErrNotConnected
+		token.flowComplete()
+		return token
+	case c.connectionStatus() == reconnecting && qos == 0:
+		token.flowComplete()
+		return token
+	}
+	pub := packets.NewControlPacket(packets.Publish).(*packets.PublishPacket)
+	pub.Qos = qos
+	pub.TopicName = topic
+	pub.Retain = retained
+	switch payload.(type) {
+	case string:
+		pub.Payload = []byte(payload.(string))
+	case []byte:
+		pub.Payload = payload.([]byte)
+	default:
+		token.err = errors.New("Unknown payload type")
+		token.flowComplete()
+		return token
+	}
+
+	DEBUG.Println(CLI, "sending publish message, topic:", topic)
+	if pub.Qos != 0 && pub.MessageID == 0 {
+		pub.MessageID = c.getID(token)
+		token.messageID = pub.MessageID
+	}
+	persistOutbound(c.persist, pub)
+	c.obound <- &PacketAndToken{p: pub, t: token}
+	return token
+}
+
+// Subscribe starts a new subscription. Provide a MessageHandler to be executed when
+// a message is published on the topic provided.
+func (c *client) Subscribe(topic string, qos byte, callback MessageHandler) Token {
+	token := newToken(packets.Subscribe).(*SubscribeToken)
+	DEBUG.Println(CLI, "enter Subscribe")
+	if !c.IsConnected() {
+		token.err = ErrNotConnected
+		token.flowComplete()
+		return token
+	}
+	sub := packets.NewControlPacket(packets.Subscribe).(*packets.SubscribePacket)
+	if err := validateTopicAndQos(topic, qos); err != nil {
+		token.err = err
+		return token
+	}
+	sub.Topics = append(sub.Topics, topic)
+	sub.Qoss = append(sub.Qoss, qos)
+	DEBUG.Println(CLI, sub.String())
+
+	if callback != nil {
+		c.msgRouter.addRoute(topic, callback)
+	}
+
+	token.subs = append(token.subs, topic)
+	c.oboundP <- &PacketAndToken{p: sub, t: token}
+	DEBUG.Println(CLI, "exit Subscribe")
+	return token
+}
+
+// SubscribeMultiple starts a new subscription for multiple topics. Provide a MessageHandler to
+// be executed when a message is published on one of the topics provided.
+func (c *client) SubscribeMultiple(filters map[string]byte, callback MessageHandler) Token {
+	var err error
+	token := newToken(packets.Subscribe).(*SubscribeToken)
+	DEBUG.Println(CLI, "enter SubscribeMultiple")
+	if !c.IsConnected() {
+		token.err = ErrNotConnected
+		token.flowComplete()
+		return token
+	}
+	sub := packets.NewControlPacket(packets.Subscribe).(*packets.SubscribePacket)
+	if sub.Topics, sub.Qoss, err = validateSubscribeMap(filters); err != nil {
+		token.err = err
+		return token
+	}
+
+	if callback != nil {
+		for topic := range filters {
+			c.msgRouter.addRoute(topic, callback)
+		}
+	}
+	token.subs = make([]string, len(sub.Topics))
+	copy(token.subs, sub.Topics)
+	c.oboundP <- &PacketAndToken{p: sub, t: token}
+	DEBUG.Println(CLI, "exit SubscribeMultiple")
+	return token
+}
+
+// Unsubscribe will end the subscription from each of the topics provided.
+// Messages published to those topics from other clients will no longer be
+// received.
+func (c *client) Unsubscribe(topics ...string) Token {
+	token := newToken(packets.Unsubscribe).(*UnsubscribeToken)
+	DEBUG.Println(CLI, "enter Unsubscribe")
+	if !c.IsConnected() {
+		token.err = ErrNotConnected
+		token.flowComplete()
+		return token
+	}
+	unsub := packets.NewControlPacket(packets.Unsubscribe).(*packets.UnsubscribePacket)
+	unsub.Topics = make([]string, len(topics))
+	copy(unsub.Topics, topics)
+
+	c.oboundP <- &PacketAndToken{p: unsub, t: token}
+	for _, topic := range topics {
+		c.msgRouter.deleteRoute(topic)
+	}
+
+	DEBUG.Println(CLI, "exit Unsubscribe")
+	return token
+}
+
+// OptionsReader returns a ClientOptionsReader which is a copy of the clientoptions
+// in use by the client.
+func (c *client) OptionsReader() ClientOptionsReader {
+	r := ClientOptionsReader{options: &c.options}
+	return r
+}
+
+//DefaultConnectionLostHandler is a definition of a function that simply
+//reports to the DEBUG log the reason for the client losing a connection.
+func DefaultConnectionLostHandler(client Client, reason error) {
+	DEBUG.Println("Connection lost:", reason.Error())
+}

vendor/github.com/eclipse/paho.mqtt.golang/components.go

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2013 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Seth Hoenig
+ *    Allan Stockdill-Mander
+ *    Mike Robertson
+ */
+
+package mqtt
+
+type component string
+
+// Component names for debug output
+const (
+	NET component = "[net]     "
+	PNG component = "[pinger]  "
+	CLI component = "[client]  "
+	DEC component = "[decode]  "
+	MES component = "[message] "
+	STR component = "[store]   "
+	MID component = "[msgids]  "
+	TST component = "[test]    "
+	STA component = "[state]   "
+	ERR component = "[error]   "
+)

vendor/github.com/eclipse/paho.mqtt.golang/edl-v10

@@ -0,0 +1,15 @@
+
+Eclipse Distribution License - v 1.0
+
+Copyright (c) 2007, Eclipse Foundation, Inc. and its licensors.
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+    Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+    Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+    Neither the name of the Eclipse Foundation, Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. 
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+

vendor/github.com/eclipse/paho.mqtt.golang/epl-v10

@@ -0,0 +1,70 @@
+Eclipse Public License - v 1.0
+
+THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC LICENSE ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
+
+1. DEFINITIONS
+
+"Contribution" means:
+
+a) in the case of the initial Contributor, the initial code and documentation distributed under this Agreement, and
+b) in the case of each subsequent Contributor:
+i) changes to the Program, and
+ii) additions to the Program;
+where such changes and/or additions to the Program originate from and are distributed by that particular Contributor. A Contribution 'originates' from a Contributor if it was added to the Program by such Contributor itself or anyone acting on such Contributor's behalf. Contributions do not include additions to the Program which: (i) are separate modules of software distributed in conjunction with the Program under their own license agreement, and (ii) are not derivative works of the Program.
+"Contributor" means any person or entity that distributes the Program.
+
+"Licensed Patents" mean patent claims licensable by a Contributor which are necessarily infringed by the use or sale of its Contribution alone or when combined with the Program.
+
+"Program" means the Contributions distributed in accordance with this Agreement.
+
+"Recipient" means anyone who receives the Program under this Agreement, including all Contributors.
+
+2. GRANT OF RIGHTS
+
+a) Subject to the terms of this Agreement, each Contributor hereby grants Recipient a non-exclusive, worldwide, royalty-free copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, distribute and sublicense the Contribution of such Contributor, if any, and such derivative works, in source code and object code form.
+b) Subject to the terms of this Agreement, each Contributor hereby grants Recipient a non-exclusive, worldwide, royalty-free patent license under Licensed Patents to make, use, sell, offer to sell, import and otherwise transfer the Contribution of such Contributor, if any, in source code and object code form. This patent license shall apply to the combination of the Contribution and the Program if, at the time the Contribution is added by the Contributor, such addition of the Contribution causes such combination to be covered by the Licensed Patents. The patent license shall not apply to any other combinations which include the Contribution. No hardware per se is licensed hereunder.
+c) Recipient understands that although each Contributor grants the licenses to its Contributions set forth herein, no assurances are provided by any Contributor that the Program does not infringe the patent or other intellectual property rights of any other entity. Each Contributor disclaims any liability to Recipient for claims brought by any other entity based on infringement of intellectual property rights or otherwise. As a condition to exercising the rights and licenses granted hereunder, each Recipient hereby assumes sole responsibility to secure any other intellectual property rights needed, if any. For example, if a third party patent license is required to allow Recipient to distribute the Program, it is Recipient's responsibility to acquire that license before distributing the Program.
+d) Each Contributor represents that to its knowledge it has sufficient copyright rights in its Contribution, if any, to grant the copyright license set forth in this Agreement.
+3. REQUIREMENTS
+
+A Contributor may choose to distribute the Program in object code form under its own license agreement, provided that:
+
+a) it complies with the terms and conditions of this Agreement; and
+b) its license agreement:
+i) effectively disclaims on behalf of all Contributors all warranties and conditions, express and implied, including warranties or conditions of title and non-infringement, and implied warranties or conditions of merchantability and fitness for a particular purpose;
+ii) effectively excludes on behalf of all Contributors all liability for damages, including direct, indirect, special, incidental and consequential damages, such as lost profits;
+iii) states that any provisions which differ from this Agreement are offered by that Contributor alone and not by any other party; and
+iv) states that source code for the Program is available from such Contributor, and informs licensees how to obtain it in a reasonable manner on or through a medium customarily used for software exchange.
+When the Program is made available in source code form:
+
+a) it must be made available under this Agreement; and
+b) a copy of this Agreement must be included with each copy of the Program.
+Contributors may not remove or alter any copyright notices contained within the Program.
+
+Each Contributor must identify itself as the originator of its Contribution, if any, in a manner that reasonably allows subsequent Recipients to identify the originator of the Contribution.
+
+4. COMMERCIAL DISTRIBUTION
+
+Commercial distributors of software may accept certain responsibilities with respect to end users, business partners and the like. While this license is intended to facilitate the commercial use of the Program, the Contributor who includes the Program in a commercial product offering should do so in a manner which does not create potential liability for other Contributors. Therefore, if a Contributor includes the Program in a commercial product offering, such Contributor ("Commercial Contributor") hereby agrees to defend and indemnify every other Contributor ("Indemnified Contributor") against any losses, damages and costs (collectively "Losses") arising from claims, lawsuits and other legal actions brought by a third party against the Indemnified Contributor to the extent caused by the acts or omissions of such Commercial Contributor in connection with its distribution of the Program in a commercial product offering. The obligations in this section do not apply to any claims or Losses relating to any actual or alleged intellectual property infringement. In order to qualify, an Indemnified Contributor must: a) promptly notify the Commercial Contributor in writing of such claim, and b) allow the Commercial Contributor to control, and cooperate with the Commercial Contributor in, the defense and any related settlement negotiations. The Indemnified Contributor may participate in any such claim at its own expense.
+
+For example, a Contributor might include the Program in a commercial product offering, Product X. That Contributor is then a Commercial Contributor. If that Commercial Contributor then makes performance claims, or offers warranties related to Product X, those performance claims and warranties are such Commercial Contributor's responsibility alone. Under this section, the Commercial Contributor would have to defend claims against the other Contributors related to those performance claims and warranties, and if a court requires any other Contributor to pay any damages as a result, the Commercial Contributor must pay those damages.
+
+5. NO WARRANTY
+
+EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is solely responsible for determining the appropriateness of using and distributing the Program and assumes all risks associated with its exercise of rights under this Agreement , including but not limited to the risks and costs of program errors, compliance with applicable laws, damage to or loss of data, programs or equipment, and unavailability or interruption of operations.
+
+6. DISCLAIMER OF LIABILITY
+
+EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+7. GENERAL
+
+If any provision of this Agreement is invalid or unenforceable under applicable law, it shall not affect the validity or enforceability of the remainder of the terms of this Agreement, and without further action by the parties hereto, such provision shall be reformed to the minimum extent necessary to make such provision valid and enforceable.
+
+If Recipient institutes patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Program itself (excluding combinations of the Program with other software or hardware) infringes such Recipient's patent(s), then such Recipient's rights granted under Section 2(b) shall terminate as of the date such litigation is filed.
+
+All Recipient's rights under this Agreement shall terminate if it fails to comply with any of the material terms or conditions of this Agreement and does not cure such failure in a reasonable period of time after becoming aware of such noncompliance. If all Recipient's rights under this Agreement terminate, Recipient agrees to cease use and distribution of the Program as soon as reasonably practicable. However, Recipient's obligations under this Agreement and any licenses granted by Recipient relating to the Program shall continue and survive.
+
+Everyone is permitted to copy and distribute copies of this Agreement, but in order to avoid inconsistency the Agreement is copyrighted and may only be modified in the following manner. The Agreement Steward reserves the right to publish new versions (including revisions) of this Agreement from time to time. No one other than the Agreement Steward has the right to modify this Agreement. The Eclipse Foundation is the initial Agreement Steward. The Eclipse Foundation may assign the responsibility to serve as the Agreement Steward to a suitable separate entity. Each new version of the Agreement will be given a distinguishing version number. The Program (including Contributions) may always be distributed subject to the version of the Agreement under which it was received. In addition, after a new version of the Agreement is published, Contributor may elect to distribute the Program (including its Contributions) under the new version. Except as expressly stated in Sections 2(a) and 2(b) above, Recipient receives no rights or licenses to the intellectual property of any Contributor under this Agreement, whether expressly, by implication, estoppel or otherwise. All rights in the Program not expressly granted under this Agreement are reserved.
+
+This Agreement is governed by the laws of the State of New York and the intellectual property laws of the United States of America. No party to this Agreement will bring a legal action under this Agreement more than one year after the cause of action arose. Each party waives its rights to a jury trial in any resulting litigation.

vendor/github.com/eclipse/paho.mqtt.golang/filestore.go

@@ -0,0 +1,235 @@
+/*
+ * Copyright (c) 2013 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Seth Hoenig
+ *    Allan Stockdill-Mander
+ *    Mike Robertson
+ */
+
+package mqtt
+
+import (
+	"io/ioutil"
+	"os"
+	"path"
+	"sync"
+
+	"github.com/eclipse/paho.mqtt.golang/packets"
+)
+
+const (
+	msgExt     = ".msg"
+	tmpExt     = ".tmp"
+	corruptExt = ".CORRUPT"
+)
+
+// FileStore implements the store interface using the filesystem to provide
+// true persistence, even across client failure. This is designed to use a
+// single directory per running client. If you are running multiple clients
+// on the same filesystem, you will need to be careful to specify unique
+// store directories for each.
+type FileStore struct {
+	sync.RWMutex
+	directory string
+	opened    bool
+}
+
+// NewFileStore will create a new FileStore which stores its messages in the
+// directory provided.
+func NewFileStore(directory string) *FileStore {
+	store := &FileStore{
+		directory: directory,
+		opened:    false,
+	}
+	return store
+}
+
+// Open will allow the FileStore to be used.
+func (store *FileStore) Open() {
+	store.Lock()
+	defer store.Unlock()
+	// if no store directory was specified in ClientOpts, by default use the
+	// current working directory
+	if store.directory == "" {
+		store.directory, _ = os.Getwd()
+	}
+
+	// if store dir exists, great, otherwise, create it
+	if !exists(store.directory) {
+		perms := os.FileMode(0770)
+		merr := os.MkdirAll(store.directory, perms)
+		chkerr(merr)
+	}
+	store.opened = true
+	DEBUG.Println(STR, "store is opened at", store.directory)
+}
+
+// Close will disallow the FileStore from being used.
+func (store *FileStore) Close() {
+	store.Lock()
+	defer store.Unlock()
+	store.opened = false
+	DEBUG.Println(STR, "store is closed")
+}
+
+// Put will put a message into the store, associated with the provided
+// key value.
+func (store *FileStore) Put(key string, m packets.ControlPacket) {
+	store.Lock()
+	defer store.Unlock()
+	if !store.opened {
+		ERROR.Println(STR, "Trying to use file store, but not open")
+		return
+	}
+	full := fullpath(store.directory, key)
+	write(store.directory, key, m)
+	if !exists(full) {
+		ERROR.Println(STR, "file not created:", full)
+	}
+}
+
+// Get will retrieve a message from the store, the one associated with
+// the provided key value.
+func (store *FileStore) Get(key string) packets.ControlPacket {
+	store.RLock()
+	defer store.RUnlock()
+	if !store.opened {
+		ERROR.Println(STR, "Trying to use file store, but not open")
+		return nil
+	}
+	filepath := fullpath(store.directory, key)
+	if !exists(filepath) {
+		return nil
+	}
+	mfile, oerr := os.Open(filepath)
+	chkerr(oerr)
+	msg, rerr := packets.ReadPacket(mfile)
+	chkerr(mfile.Close())
+
+	// Message was unreadable, return nil
+	if rerr != nil {
+		newpath := corruptpath(store.directory, key)
+		WARN.Println(STR, "corrupted file detected:", rerr.Error(), "archived at:", newpath)
+		os.Rename(filepath, newpath)
+		return nil
+	}
+	return msg
+}
+
+// All will provide a list of all of the keys associated with messages
+// currenly residing in the FileStore.
+func (store *FileStore) All() []string {
+	store.RLock()
+	defer store.RUnlock()
+	return store.all()
+}
+
+// Del will remove the persisted message associated with the provided
+// key from the FileStore.
+func (store *FileStore) Del(key string) {
+	store.Lock()
+	defer store.Unlock()
+	store.del(key)
+}
+
+// Reset will remove all persisted messages from the FileStore.
+func (store *FileStore) Reset() {
+	store.Lock()
+	defer store.Unlock()
+	WARN.Println(STR, "FileStore Reset")
+	for _, key := range store.all() {
+		store.del(key)
+	}
+}
+
+// lockless
+func (store *FileStore) all() []string {
+	if !store.opened {
+		ERROR.Println(STR, "Trying to use file store, but not open")
+		return nil
+	}
+	keys := []string{}
+	files, rderr := ioutil.ReadDir(store.directory)
+	chkerr(rderr)
+	for _, f := range files {
+		DEBUG.Println(STR, "file in All():", f.Name())
+		name := f.Name()
+		if name[len(name)-4:len(name)] != msgExt {
+			DEBUG.Println(STR, "skipping file, doesn't have right extension: ", name)
+			continue
+		}
+		key := name[0 : len(name)-4] // remove file extension
+		keys = append(keys, key)
+	}
+	return keys
+}
+
+// lockless
+func (store *FileStore) del(key string) {
+	if !store.opened {
+		ERROR.Println(STR, "Trying to use file store, but not open")
+		return
+	}
+	DEBUG.Println(STR, "store del filepath:", store.directory)
+	DEBUG.Println(STR, "store delete key:", key)
+	filepath := fullpath(store.directory, key)
+	DEBUG.Println(STR, "path of deletion:", filepath)
+	if !exists(filepath) {
+		WARN.Println(STR, "store could not delete key:", key)
+		return
+	}
+	rerr := os.Remove(filepath)
+	chkerr(rerr)
+	DEBUG.Println(STR, "del msg:", key)
+	if exists(filepath) {
+		ERROR.Println(STR, "file not deleted:", filepath)
+	}
+}
+
+func fullpath(store string, key string) string {
+	p := path.Join(store, key+msgExt)
+	return p
+}
+
+func tmppath(store string, key string) string {
+	p := path.Join(store, key+tmpExt)
+	return p
+}
+
+func corruptpath(store string, key string) string {
+	p := path.Join(store, key+corruptExt)
+	return p
+}
+
+// create file called "X.[messageid].tmp" located in the store
+// the contents of the file is the bytes of the message, then
+// rename it to "X.[messageid].msg", overwriting any existing
+// message with the same id
+// X will be 'i' for inbound messages, and O for outbound messages
+func write(store, key string, m packets.ControlPacket) {
+	temppath := tmppath(store, key)
+	f, err := os.Create(temppath)
+	chkerr(err)
+	werr := m.Write(f)
+	chkerr(werr)
+	cerr := f.Close()
+	chkerr(cerr)
+	rerr := os.Rename(temppath, fullpath(store, key))
+	chkerr(rerr)
+}
+
+func exists(file string) bool {
+	if _, err := os.Stat(file); err != nil {
+		if os.IsNotExist(err) {
+			return false
+		}
+		chkerr(err)
+	}
+	return true
+}

vendor/github.com/eclipse/paho.mqtt.golang/memstore.go

@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2013 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Seth Hoenig
+ *    Allan Stockdill-Mander
+ *    Mike Robertson
+ */
+
+package mqtt
+
+import (
+	"sync"
+
+	"github.com/eclipse/paho.mqtt.golang/packets"
+)
+
+// MemoryStore implements the store interface to provide a "persistence"
+// mechanism wholly stored in memory. This is only useful for
+// as long as the client instance exists.
+type MemoryStore struct {
+	sync.RWMutex
+	messages map[string]packets.ControlPacket
+	opened   bool
+}
+
+// NewMemoryStore returns a pointer to a new instance of
+// MemoryStore, the instance is not initialized and ready to
+// use until Open() has been called on it.
+func NewMemoryStore() *MemoryStore {
+	store := &MemoryStore{
+		messages: make(map[string]packets.ControlPacket),
+		opened:   false,
+	}
+	return store
+}
+
+// Open initializes a MemoryStore instance.
+func (store *MemoryStore) Open() {
+	store.Lock()
+	defer store.Unlock()
+	store.opened = true
+	DEBUG.Println(STR, "memorystore initialized")
+}
+
+// Put takes a key and a pointer to a Message and stores the
+// message.
+func (store *MemoryStore) Put(key string, message packets.ControlPacket) {
+	store.Lock()
+	defer store.Unlock()
+	if !store.opened {
+		ERROR.Println(STR, "Trying to use memory store, but not open")
+		return
+	}
+	store.messages[key] = message
+}
+
+// Get takes a key and looks in the store for a matching Message
+// returning either the Message pointer or nil.
+func (store *MemoryStore) Get(key string) packets.ControlPacket {
+	store.RLock()
+	defer store.RUnlock()
+	if !store.opened {
+		ERROR.Println(STR, "Trying to use memory store, but not open")
+		return nil
+	}
+	mid := mIDFromKey(key)
+	m := store.messages[key]
+	if m == nil {
+		CRITICAL.Println(STR, "memorystore get: message", mid, "not found")
+	} else {
+		DEBUG.Println(STR, "memorystore get: message", mid, "found")
+	}
+	return m
+}
+
+// All returns a slice of strings containing all the keys currently
+// in the MemoryStore.
+func (store *MemoryStore) All() []string {
+	store.RLock()
+	defer store.RUnlock()
+	if !store.opened {
+		ERROR.Println(STR, "Trying to use memory store, but not open")
+		return nil
+	}
+	keys := []string{}
+	for k := range store.messages {
+		keys = append(keys, k)
+	}
+	return keys
+}
+
+// Del takes a key, searches the MemoryStore and if the key is found
+// deletes the Message pointer associated with it.
+func (store *MemoryStore) Del(key string) {
+	store.Lock()
+	defer store.Unlock()
+	if !store.opened {
+		ERROR.Println(STR, "Trying to use memory store, but not open")
+		return
+	}
+	mid := mIDFromKey(key)
+	m := store.messages[key]
+	if m == nil {
+		WARN.Println(STR, "memorystore del: message", mid, "not found")
+	} else {
+		delete(store.messages, key)
+		DEBUG.Println(STR, "memorystore del: message", mid, "was deleted")
+	}
+}
+
+// Close will disallow modifications to the state of the store.
+func (store *MemoryStore) Close() {
+	store.Lock()
+	defer store.Unlock()
+	if !store.opened {
+		ERROR.Println(STR, "Trying to close memory store, but not open")
+		return
+	}
+	store.opened = false
+	DEBUG.Println(STR, "memorystore closed")
+}
+
+// Reset eliminates all persisted message data in the store.
+func (store *MemoryStore) Reset() {
+	store.Lock()
+	defer store.Unlock()
+	if !store.opened {
+		ERROR.Println(STR, "Trying to reset memory store, but not open")
+	}
+	store.messages = make(map[string]packets.ControlPacket)
+	WARN.Println(STR, "memorystore wiped")
+}

vendor/github.com/eclipse/paho.mqtt.golang/message.go

@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2013 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Seth Hoenig
+ *    Allan Stockdill-Mander
+ *    Mike Robertson
+ */
+
+package mqtt
+
+import (
+	"github.com/eclipse/paho.mqtt.golang/packets"
+)
+
+// Message defines the externals that a message implementation must support
+// these are received messages that are passed to the callbacks, not internal
+// messages
+type Message interface {
+	Duplicate() bool
+	Qos() byte
+	Retained() bool
+	Topic() string
+	MessageID() uint16
+	Payload() []byte
+}
+
+type message struct {
+	duplicate bool
+	qos       byte
+	retained  bool
+	topic     string
+	messageID uint16
+	payload   []byte
+}
+
+func (m *message) Duplicate() bool {
+	return m.duplicate
+}
+
+func (m *message) Qos() byte {
+	return m.qos
+}
+
+func (m *message) Retained() bool {
+	return m.retained
+}
+
+func (m *message) Topic() string {
+	return m.topic
+}
+
+func (m *message) MessageID() uint16 {
+	return m.messageID
+}
+
+func (m *message) Payload() []byte {
+	return m.payload
+}
+
+func messageFromPublish(p *packets.PublishPacket) Message {
+	return &message{
+		duplicate: p.Dup,
+		qos:       p.Qos,
+		retained:  p.Retain,
+		topic:     p.TopicName,
+		messageID: p.MessageID,
+		payload:   p.Payload,
+	}
+}
+
+func newConnectMsgFromOptions(options *ClientOptions) *packets.ConnectPacket {
+	m := packets.NewControlPacket(packets.Connect).(*packets.ConnectPacket)
+
+	m.CleanSession = options.CleanSession
+	m.WillFlag = options.WillEnabled
+	m.WillRetain = options.WillRetained
+	m.ClientIdentifier = options.ClientID
+
+	if options.WillEnabled {
+		m.WillQos = options.WillQos
+		m.WillTopic = options.WillTopic
+		m.WillMessage = options.WillPayload
+	}
+
+	username := options.Username
+	password := options.Password
+	if options.CredentialsProvider != nil {
+		username, password = options.CredentialsProvider()
+	}
+
+	if username != "" {
+		m.UsernameFlag = true
+		m.Username = username
+		//mustn't have password without user as well
+		if password != "" {
+			m.PasswordFlag = true
+			m.Password = []byte(password)
+		}
+	}
+
+	m.Keepalive = uint16(options.KeepAlive)
+
+	return m
+}

vendor/github.com/eclipse/paho.mqtt.golang/messageids.go

@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2013 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Seth Hoenig
+ *    Allan Stockdill-Mander
+ *    Mike Robertson
+ */
+
+package mqtt
+
+import (
+	"fmt"
+	"sync"
+	"time"
+)
+
+// MId is 16 bit message id as specified by the MQTT spec.
+// In general, these values should not be depended upon by
+// the client application.
+type MId uint16
+
+type messageIds struct {
+	sync.RWMutex
+	index map[uint16]tokenCompletor
+}
+
+const (
+	midMin uint16 = 1
+	midMax uint16 = 65535
+)
+
+func (mids *messageIds) cleanUp() {
+	mids.Lock()
+	for _, token := range mids.index {
+		switch t := token.(type) {
+		case *PublishToken:
+			t.err = fmt.Errorf("Connection lost before Publish completed")
+		case *SubscribeToken:
+			t.err = fmt.Errorf("Connection lost before Subscribe completed")
+		case *UnsubscribeToken:
+			t.err = fmt.Errorf("Connection lost before Unsubscribe completed")
+		case nil:
+			continue
+		}
+		token.flowComplete()
+	}
+	mids.index = make(map[uint16]tokenCompletor)
+	mids.Unlock()
+	DEBUG.Println(MID, "cleaned up")
+}
+
+func (mids *messageIds) freeID(id uint16) {
+	mids.Lock()
+	delete(mids.index, id)
+	mids.Unlock()
+}
+
+func (mids *messageIds) getID(t tokenCompletor) uint16 {
+	mids.Lock()
+	defer mids.Unlock()
+	for i := midMin; i < midMax; i++ {
+		if _, ok := mids.index[i]; !ok {
+			mids.index[i] = t
+			return i
+		}
+	}
+	return 0
+}
+
+func (mids *messageIds) getToken(id uint16) tokenCompletor {
+	mids.RLock()
+	defer mids.RUnlock()
+	if token, ok := mids.index[id]; ok {
+		return token
+	}
+	return &DummyToken{id: id}
+}
+
+type DummyToken struct {
+	id uint16
+}
+
+func (d *DummyToken) Wait() bool {
+	return true
+}
+
+func (d *DummyToken) WaitTimeout(t time.Duration) bool {
+	return true
+}
+
+func (d *DummyToken) flowComplete() {
+	ERROR.Printf("A lookup for token %d returned nil\n", d.id)
+}
+
+func (d *DummyToken) Error() error {
+	return nil
+}
+
+func (d *DummyToken) setError(e error) {}

vendor/github.com/eclipse/paho.mqtt.golang/net.go

@@ -0,0 +1,335 @@
+/*
+ * Copyright (c) 2013 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Seth Hoenig
+ *    Allan Stockdill-Mander
+ *    Mike Robertson
+ */
+
+package mqtt
+
+import (
+	"crypto/tls"
+	"errors"
+	"fmt"
+	"net"
+	"net/url"
+	"os"
+	"reflect"
+	"sync/atomic"
+	"time"
+
+	"github.com/eclipse/paho.mqtt.golang/packets"
+	"golang.org/x/net/proxy"
+	"golang.org/x/net/websocket"
+)
+
+func signalError(c chan<- error, err error) {
+	select {
+	case c <- err:
+	default:
+	}
+}
+
+func openConnection(uri *url.URL, tlsc *tls.Config, timeout time.Duration) (net.Conn, error) {
+	switch uri.Scheme {
+	case "ws":
+		conn, err := websocket.Dial(uri.String(), "mqtt", fmt.Sprintf("http://%s", uri.Host))
+		if err != nil {
+			return nil, err
+		}
+		conn.PayloadType = websocket.BinaryFrame
+		return conn, err
+	case "wss":
+		config, _ := websocket.NewConfig(uri.String(), fmt.Sprintf("https://%s", uri.Host))
+		config.Protocol = []string{"mqtt"}
+		config.TlsConfig = tlsc
+		conn, err := websocket.DialConfig(config)
+		if err != nil {
+			return nil, err
+		}
+		conn.PayloadType = websocket.BinaryFrame
+		return conn, err
+	case "tcp":
+		allProxy := os.Getenv("all_proxy")
+		if len(allProxy) == 0 {
+			conn, err := net.DialTimeout("tcp", uri.Host, timeout)
+			if err != nil {
+				return nil, err
+			}
+			return conn, nil
+		}
+		proxyDialer := proxy.FromEnvironment()
+
+		conn, err := proxyDialer.Dial("tcp", uri.Host)
+		if err != nil {
+			return nil, err
+		}
+		return conn, nil
+	case "unix":
+		conn, err := net.DialTimeout("unix", uri.Host, timeout)
+		if err != nil {
+			return nil, err
+		}
+		return conn, nil
+	case "ssl":
+		fallthrough
+	case "tls":
+		fallthrough
+	case "tcps":
+		allProxy := os.Getenv("all_proxy")
+		if len(allProxy) == 0 {
+			conn, err := tls.DialWithDialer(&net.Dialer{Timeout: timeout}, "tcp", uri.Host, tlsc)
+			if err != nil {
+				return nil, err
+			}
+			return conn, nil
+		}
+		proxyDialer := proxy.FromEnvironment()
+
+		conn, err := proxyDialer.Dial("tcp", uri.Host)
+		if err != nil {
+			return nil, err
+		}
+
+		tlsConn := tls.Client(conn, tlsc)
+
+		err = tlsConn.Handshake()
+		if err != nil {
+			conn.Close()
+			return nil, err
+		}
+
+		return tlsConn, nil
+	}
+	return nil, errors.New("Unknown protocol")
+}
+
+// actually read incoming messages off the wire
+// send Message object into ibound channel
+func incoming(c *client) {
+	var err error
+	var cp packets.ControlPacket
+
+	defer c.workers.Done()
+
+	DEBUG.Println(NET, "incoming started")
+
+	for {
+		if cp, err = packets.ReadPacket(c.conn); err != nil {
+			break
+		}
+		DEBUG.Println(NET, "Received Message")
+		select {
+		case c.ibound <- cp:
+			// Notify keepalive logic that we recently received a packet
+			if c.options.KeepAlive != 0 {
+				atomic.StoreInt64(&c.lastReceived, time.Now().Unix())
+			}
+		case <-c.stop:
+			// This avoids a deadlock should a message arrive while shutting down.
+			// In that case the "reader" of c.ibound might already be gone
+			WARN.Println(NET, "incoming dropped a received message during shutdown")
+			break
+		}
+	}
+	// We received an error on read.
+	// If disconnect is in progress, swallow error and return
+	select {
+	case <-c.stop:
+		DEBUG.Println(NET, "incoming stopped")
+		return
+	// Not trying to disconnect, send the error to the errors channel
+	default:
+		ERROR.Println(NET, "incoming stopped with error", err)
+		signalError(c.errors, err)
+		return
+	}
+}
+
+// receive a Message object on obound, and then
+// actually send outgoing message to the wire
+func outgoing(c *client) {
+	defer c.workers.Done()
+	DEBUG.Println(NET, "outgoing started")
+
+	for {
+		DEBUG.Println(NET, "outgoing waiting for an outbound message")
+		select {
+		case <-c.stop:
+			DEBUG.Println(NET, "outgoing stopped")
+			return
+		case pub := <-c.obound:
+			msg := pub.p.(*packets.PublishPacket)
+
+			if c.options.WriteTimeout > 0 {
+				c.conn.SetWriteDeadline(time.Now().Add(c.options.WriteTimeout))
+			}
+
+			if err := msg.Write(c.conn); err != nil {
+				ERROR.Println(NET, "outgoing stopped with error", err)
+				pub.t.setError(err)
+				signalError(c.errors, err)
+				return
+			}
+
+			if c.options.WriteTimeout > 0 {
+				// If we successfully wrote, we don't want the timeout to happen during an idle period
+				// so we reset it to infinite.
+				c.conn.SetWriteDeadline(time.Time{})
+			}
+
+			if msg.Qos == 0 {
+				pub.t.flowComplete()
+			}
+			DEBUG.Println(NET, "obound wrote msg, id:", msg.MessageID)
+		case msg := <-c.oboundP:
+			switch msg.p.(type) {
+			case *packets.SubscribePacket:
+				msg.p.(*packets.SubscribePacket).MessageID = c.getID(msg.t)
+			case *packets.UnsubscribePacket:
+				msg.p.(*packets.UnsubscribePacket).MessageID = c.getID(msg.t)
+			}
+			DEBUG.Println(NET, "obound priority msg to write, type", reflect.TypeOf(msg.p))
+			if err := msg.p.Write(c.conn); err != nil {
+				ERROR.Println(NET, "outgoing stopped with error", err)
+				msg.t.setError(err)
+				signalError(c.errors, err)
+				return
+			}
+			switch msg.p.(type) {
+			case *packets.DisconnectPacket:
+				msg.t.(*DisconnectToken).flowComplete()
+				DEBUG.Println(NET, "outbound wrote disconnect, stopping")
+				return
+			}
+		}
+		// Reset ping timer after sending control packet.
+		if c.options.KeepAlive != 0 {
+			atomic.StoreInt64(&c.lastSent, time.Now().Unix())
+		}
+	}
+}
+
+// receive Message objects on ibound
+// store messages if necessary
+// send replies on obound
+// delete messages from store if necessary
+func alllogic(c *client) {
+	defer c.workers.Done()
+	DEBUG.Println(NET, "logic started")
+
+	for {
+		DEBUG.Println(NET, "logic waiting for msg on ibound")
+
+		select {
+		case msg := <-c.ibound:
+			DEBUG.Println(NET, "logic got msg on ibound")
+			persistInbound(c.persist, msg)
+			switch m := msg.(type) {
+			case *packets.PingrespPacket:
+				DEBUG.Println(NET, "received pingresp")
+				atomic.StoreInt32(&c.pingOutstanding, 0)
+			case *packets.SubackPacket:
+				DEBUG.Println(NET, "received suback, id:", m.MessageID)
+				token := c.getToken(m.MessageID)
+				switch t := token.(type) {
+				case *SubscribeToken:
+					DEBUG.Println(NET, "granted qoss", m.ReturnCodes)
+					for i, qos := range m.ReturnCodes {
+						t.subResult[t.subs[i]] = qos
+					}
+				}
+				token.flowComplete()
+				c.freeID(m.MessageID)
+			case *packets.UnsubackPacket:
+				DEBUG.Println(NET, "received unsuback, id:", m.MessageID)
+				c.getToken(m.MessageID).flowComplete()
+				c.freeID(m.MessageID)
+			case *packets.PublishPacket:
+				DEBUG.Println(NET, "received publish, msgId:", m.MessageID)
+				DEBUG.Println(NET, "putting msg on onPubChan")
+				switch m.Qos {
+				case 2:
+					c.incomingPubChan <- m
+					DEBUG.Println(NET, "done putting msg on incomingPubChan")
+					pr := packets.NewControlPacket(packets.Pubrec).(*packets.PubrecPacket)
+					pr.MessageID = m.MessageID
+					DEBUG.Println(NET, "putting pubrec msg on obound")
+					select {
+					case c.oboundP <- &PacketAndToken{p: pr, t: nil}:
+					case <-c.stop:
+					}
+					DEBUG.Println(NET, "done putting pubrec msg on obound")
+				case 1:
+					c.incomingPubChan <- m
+					DEBUG.Println(NET, "done putting msg on incomingPubChan")
+					pa := packets.NewControlPacket(packets.Puback).(*packets.PubackPacket)
+					pa.MessageID = m.MessageID
+					DEBUG.Println(NET, "putting puback msg on obound")
+					persistOutbound(c.persist, pa)
+					select {
+					case c.oboundP <- &PacketAndToken{p: pa, t: nil}:
+					case <-c.stop:
+					}
+					DEBUG.Println(NET, "done putting puback msg on obound")
+				case 0:
+					select {
+					case c.incomingPubChan <- m:
+					case <-c.stop:
+					}
+					DEBUG.Println(NET, "done putting msg on incomingPubChan")
+				}
+			case *packets.PubackPacket:
+				DEBUG.Println(NET, "received puback, id:", m.MessageID)
+				// c.receipts.get(msg.MsgId()) <- Receipt{}
+				// c.receipts.end(msg.MsgId())
+				c.getToken(m.MessageID).flowComplete()
+				c.freeID(m.MessageID)
+			case *packets.PubrecPacket:
+				DEBUG.Println(NET, "received pubrec, id:", m.MessageID)
+				prel := packets.NewControlPacket(packets.Pubrel).(*packets.PubrelPacket)
+				prel.MessageID = m.MessageID
+				select {
+				case c.oboundP <- &PacketAndToken{p: prel, t: nil}:
+				case <-c.stop:
+				}
+			case *packets.PubrelPacket:
+				DEBUG.Println(NET, "received pubrel, id:", m.MessageID)
+				pc := packets.NewControlPacket(packets.Pubcomp).(*packets.PubcompPacket)
+				pc.MessageID = m.MessageID
+				persistOutbound(c.persist, pc)
+				select {
+				case c.oboundP <- &PacketAndToken{p: pc, t: nil}:
+				case <-c.stop:
+				}
+			case *packets.PubcompPacket:
+				DEBUG.Println(NET, "received pubcomp, id:", m.MessageID)
+				c.getToken(m.MessageID).flowComplete()
+				c.freeID(m.MessageID)
+			}
+		case <-c.stop:
+			WARN.Println(NET, "logic stopped")
+			return
+		}
+	}
+}
+
+func errorWatch(c *client) {
+	defer c.workers.Done()
+	select {
+	case <-c.stop:
+		WARN.Println(NET, "errorWatch stopped")
+		return
+	case err := <-c.errors:
+		ERROR.Println(NET, "error triggered, stopping")
+		go c.internalConnLost(err)
+		return
+	}
+}

vendor/github.com/eclipse/paho.mqtt.golang/notice.html

@@ -0,0 +1,108 @@
+<?xml version="1.0" encoding="ISO-8859-1" ?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
+<title>Eclipse Foundation Software User Agreement</title>
+</head>
+
+<body lang="EN-US">
+<h2>Eclipse Foundation Software User Agreement</h2>
+<p>February 1, 2011</p>
+
+<h3>Usage Of Content</h3>
+
+<p>THE ECLIPSE FOUNDATION MAKES AVAILABLE SOFTWARE, DOCUMENTATION, INFORMATION AND/OR OTHER MATERIALS FOR OPEN SOURCE PROJECTS
+   (COLLECTIVELY &quot;CONTENT&quot;).  USE OF THE CONTENT IS GOVERNED BY THE TERMS AND CONDITIONS OF THIS AGREEMENT AND/OR THE TERMS AND
+   CONDITIONS OF LICENSE AGREEMENTS OR NOTICES INDICATED OR REFERENCED BELOW.  BY USING THE CONTENT, YOU AGREE THAT YOUR USE
+   OF THE CONTENT IS GOVERNED BY THIS AGREEMENT AND/OR THE TERMS AND CONDITIONS OF ANY APPLICABLE LICENSE AGREEMENTS OR
+   NOTICES INDICATED OR REFERENCED BELOW.  IF YOU DO NOT AGREE TO THE TERMS AND CONDITIONS OF THIS AGREEMENT AND THE TERMS AND
+   CONDITIONS OF ANY APPLICABLE LICENSE AGREEMENTS OR NOTICES INDICATED OR REFERENCED BELOW, THEN YOU MAY NOT USE THE CONTENT.</p>
+
+<h3>Applicable Licenses</h3>
+
+<p>Unless otherwise indicated, all Content made available by the Eclipse Foundation is provided to you under the terms and conditions of the Eclipse Public License Version 1.0
+   (&quot;EPL&quot;).  A copy of the EPL is provided with this Content and is also available at <a href="http://www.eclipse.org/legal/epl-v10.html">http://www.eclipse.org/legal/epl-v10.html</a>.
+   For purposes of the EPL, &quot;Program&quot; will mean the Content.</p>
+
+<p>Content includes, but is not limited to, source code, object code, documentation and other files maintained in the Eclipse Foundation source code
+   repository (&quot;Repository&quot;) in software modules (&quot;Modules&quot;) and made available as downloadable archives (&quot;Downloads&quot;).</p>
+
+<ul>
+       <li>Content may be structured and packaged into modules to facilitate delivering, extending, and upgrading the Content.  Typical modules may include plug-ins (&quot;Plug-ins&quot;), plug-in fragments (&quot;Fragments&quot;), and features (&quot;Features&quot;).</li>
+       <li>Each Plug-in or Fragment may be packaged as a sub-directory or JAR (Java&trade; ARchive) in a directory named &quot;plugins&quot;.</li>
+       <li>A Feature is a bundle of one or more Plug-ins and/or Fragments and associated material.  Each Feature may be packaged as a sub-directory in a directory named &quot;features&quot;.  Within a Feature, files named &quot;feature.xml&quot; may contain a list of the names and version numbers of the Plug-ins
+      and/or Fragments associated with that Feature.</li>
+       <li>Features may also include other Features (&quot;Included Features&quot;). Within a Feature, files named &quot;feature.xml&quot; may contain a list of the names and version numbers of Included Features.</li>
+</ul>
+
+<p>The terms and conditions governing Plug-ins and Fragments should be contained in files named &quot;about.html&quot; (&quot;Abouts&quot;). The terms and conditions governing Features and
+Included Features should be contained in files named &quot;license.html&quot; (&quot;Feature Licenses&quot;).  Abouts and Feature Licenses may be located in any directory of a Download or Module
+including, but not limited to the following locations:</p>
+
+<ul>
+       <li>The top-level (root) directory</li>
+       <li>Plug-in and Fragment directories</li>
+       <li>Inside Plug-ins and Fragments packaged as JARs</li>
+       <li>Sub-directories of the directory named &quot;src&quot; of certain Plug-ins</li>
+       <li>Feature directories</li>
+</ul>
+
+<p>Note: if a Feature made available by the Eclipse Foundation is installed using the Provisioning Technology (as defined below), you must agree to a license (&quot;Feature Update License&quot;) during the
+installation process.  If the Feature contains Included Features, the Feature Update License should either provide you with the terms and conditions governing the Included Features or
+inform you where you can locate them.  Feature Update Licenses may be found in the &quot;license&quot; property of files named &quot;feature.properties&quot; found within a Feature.
+Such Abouts, Feature Licenses, and Feature Update Licenses contain the terms and conditions (or references to such terms and conditions) that govern your use of the associated Content in
+that directory.</p>
+
+<p>THE ABOUTS, FEATURE LICENSES, AND FEATURE UPDATE LICENSES MAY REFER TO THE EPL OR OTHER LICENSE AGREEMENTS, NOTICES OR TERMS AND CONDITIONS.  SOME OF THESE
+OTHER LICENSE AGREEMENTS MAY INCLUDE (BUT ARE NOT LIMITED TO):</p>
+
+<ul>
+       <li>Eclipse Distribution License Version 1.0 (available at <a href="http://www.eclipse.org/licenses/edl-v10.html">http://www.eclipse.org/licenses/edl-v1.0.html</a>)</li>
+       <li>Common Public License Version 1.0 (available at <a href="http://www.eclipse.org/legal/cpl-v10.html">http://www.eclipse.org/legal/cpl-v10.html</a>)</li>
+       <li>Apache Software License 1.1 (available at <a href="http://www.apache.org/licenses/LICENSE">http://www.apache.org/licenses/LICENSE</a>)</li>
+       <li>Apache Software License 2.0 (available at <a href="http://www.apache.org/licenses/LICENSE-2.0">http://www.apache.org/licenses/LICENSE-2.0</a>)</li>
+       <li>Metro Link Public License 1.00 (available at <a href="http://www.opengroup.org/openmotif/supporters/metrolink/license.html">http://www.opengroup.org/openmotif/supporters/metrolink/license.html</a>)</li>
+       <li>Mozilla Public License Version 1.1 (available at <a href="http://www.mozilla.org/MPL/MPL-1.1.html">http://www.mozilla.org/MPL/MPL-1.1.html</a>)</li>
+</ul>
+
+<p>IT IS YOUR OBLIGATION TO READ AND ACCEPT ALL SUCH TERMS AND CONDITIONS PRIOR TO USE OF THE CONTENT.  If no About, Feature License, or Feature Update License is provided, please
+contact the Eclipse Foundation to determine what terms and conditions govern that particular Content.</p>
+
+
+<h3>Use of Provisioning Technology</h3>
+
+<p>The Eclipse Foundation makes available provisioning software, examples of which include, but are not limited to, p2 and the Eclipse
+   Update Manager (&quot;Provisioning Technology&quot;) for the purpose of allowing users to install software, documentation, information and/or
+   other materials (collectively &quot;Installable Software&quot;). This capability is provided with the intent of allowing such users to
+   install, extend and update Eclipse-based products. Information about packaging Installable Software is available at <a
+       href="http://eclipse.org/equinox/p2/repository_packaging.html">http://eclipse.org/equinox/p2/repository_packaging.html</a>
+   (&quot;Specification&quot;).</p>
+
+<p>You may use Provisioning Technology to allow other parties to install Installable Software. You shall be responsible for enabling the
+   applicable license agreements relating to the Installable Software to be presented to, and accepted by, the users of the Provisioning Technology
+   in accordance with the Specification. By using Provisioning Technology in such a manner and making it available in accordance with the
+   Specification, you further acknowledge your agreement to, and the acquisition of all necessary rights to permit the following:</p>
+
+<ol>
+       <li>A series of actions may occur (&quot;Provisioning Process&quot;) in which a user may execute the Provisioning Technology
+       on a machine (&quot;Target Machine&quot;) with the intent of installing, extending or updating the functionality of an Eclipse-based
+       product.</li>
+       <li>During the Provisioning Process, the Provisioning Technology may cause third party Installable Software or a portion thereof to be
+       accessed and copied to the Target Machine.</li>
+       <li>Pursuant to the Specification, you will provide to the user the terms and conditions that govern the use of the Installable
+       Software (&quot;Installable Software Agreement&quot;) and such Installable Software Agreement shall be accessed from the Target
+       Machine in accordance with the Specification. Such Installable Software Agreement must inform the user of the terms and conditions that govern
+       the Installable Software and must solicit acceptance by the end user in the manner prescribed in such Installable Software Agreement. Upon such
+       indication of agreement by the user, the provisioning Technology will complete installation of the Installable Software.</li>
+</ol>
+
+<h3>Cryptography</h3>
+
+<p>Content may contain encryption software. The country in which you are currently may have restrictions on the import, possession, and use, and/or re-export to
+   another country, of encryption software. BEFORE using any encryption software, please check the country's laws, regulations and policies concerning the import,
+   possession, or use, and re-export of encryption software, to see if this is permitted.</p>
+
+<p><small>Java and all Java-based trademarks are trademarks of Oracle Corporation in the United States, other countries, or both.</small></p>
+</body>
+</html>

vendor/github.com/eclipse/paho.mqtt.golang/oops.go

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2013 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Seth Hoenig
+ *    Allan Stockdill-Mander
+ *    Mike Robertson
+ */
+
+package mqtt
+
+func chkerr(e error) {
+	if e != nil {
+		panic(e)
+	}
+}

vendor/github.com/eclipse/paho.mqtt.golang/options.go

@@ -0,0 +1,309 @@
+/*
+ * Copyright (c) 2013 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Seth Hoenig
+ *    Allan Stockdill-Mander
+ *    Mike Robertson
+ */
+
+package mqtt
+
+import (
+	"crypto/tls"
+	"net/url"
+	"time"
+)
+
+// CredentialsProvider allows the username and password to be updated
+// before reconnecting. It should return the current username and password.
+type CredentialsProvider func() (username string, password string)
+
+// MessageHandler is a callback type which can be set to be
+// executed upon the arrival of messages published to topics
+// to which the client is subscribed.
+type MessageHandler func(Client, Message)
+
+// ConnectionLostHandler is a callback type which can be set to be
+// executed upon an unintended disconnection from the MQTT broker.
+// Disconnects caused by calling Disconnect or ForceDisconnect will
+// not cause an OnConnectionLost callback to execute.
+type ConnectionLostHandler func(Client, error)
+
+// OnConnectHandler is a callback that is called when the client
+// state changes from unconnected/disconnected to connected. Both
+// at initial connection and on reconnection
+type OnConnectHandler func(Client)
+
+// ClientOptions contains configurable options for an Client.
+type ClientOptions struct {
+	Servers                 []*url.URL
+	ClientID                string
+	Username                string
+	Password                string
+	CredentialsProvider     CredentialsProvider
+	CleanSession            bool
+	Order                   bool
+	WillEnabled             bool
+	WillTopic               string
+	WillPayload             []byte
+	WillQos                 byte
+	WillRetained            bool
+	ProtocolVersion         uint
+	protocolVersionExplicit bool
+	TLSConfig               tls.Config
+	KeepAlive               int64
+	PingTimeout             time.Duration
+	ConnectTimeout          time.Duration
+	MaxReconnectInterval    time.Duration
+	AutoReconnect           bool
+	Store                   Store
+	DefaultPublishHandler   MessageHandler
+	OnConnect               OnConnectHandler
+	OnConnectionLost        ConnectionLostHandler
+	WriteTimeout            time.Duration
+	MessageChannelDepth     uint
+}
+
+// NewClientOptions will create a new ClientClientOptions type with some
+// default values.
+//   Port: 1883
+//   CleanSession: True
+//   Order: True
+//   KeepAlive: 30 (seconds)
+//   ConnectTimeout: 30 (seconds)
+//   MaxReconnectInterval 10 (minutes)
+//   AutoReconnect: True
+func NewClientOptions() *ClientOptions {
+	o := &ClientOptions{
+		Servers:                 nil,
+		ClientID:                "",
+		Username:                "",
+		Password:                "",
+		CleanSession:            true,
+		Order:                   true,
+		WillEnabled:             false,
+		WillTopic:               "",
+		WillPayload:             nil,
+		WillQos:                 0,
+		WillRetained:            false,
+		ProtocolVersion:         0,
+		protocolVersionExplicit: false,
+		TLSConfig:               tls.Config{},
+		KeepAlive:               30,
+		PingTimeout:             10 * time.Second,
+		ConnectTimeout:          30 * time.Second,
+		MaxReconnectInterval:    10 * time.Minute,
+		AutoReconnect:           true,
+		Store:                   nil,
+		OnConnect:               nil,
+		OnConnectionLost:        DefaultConnectionLostHandler,
+		WriteTimeout:            0, // 0 represents timeout disabled
+		MessageChannelDepth:     100,
+	}
+	return o
+}
+
+// AddBroker adds a broker URI to the list of brokers to be used. The format should be
+// scheme://host:port
+// Where "scheme" is one of "tcp", "ssl", or "ws", "host" is the ip-address (or hostname)
+// and "port" is the port on which the broker is accepting connections.
+//
+// An example broker URI would look like: tcp://foobar.com:1883
+func (o *ClientOptions) AddBroker(server string) *ClientOptions {
+	brokerURI, err := url.Parse(server)
+	if err == nil {
+		o.Servers = append(o.Servers, brokerURI)
+	}
+	return o
+}
+
+// SetClientID will set the client id to be used by this client when
+// connecting to the MQTT broker. According to the MQTT v3.1 specification,
+// a client id mus be no longer than 23 characters.
+func (o *ClientOptions) SetClientID(id string) *ClientOptions {
+	o.ClientID = id
+	return o
+}
+
+// SetUsername will set the username to be used by this client when connecting
+// to the MQTT broker. Note: without the use of SSL/TLS, this information will
+// be sent in plaintext accross the wire.
+func (o *ClientOptions) SetUsername(u string) *ClientOptions {
+	o.Username = u
+	return o
+}
+
+// SetPassword will set the password to be used by this client when connecting
+// to the MQTT broker. Note: without the use of SSL/TLS, this information will
+// be sent in plaintext accross the wire.
+func (o *ClientOptions) SetPassword(p string) *ClientOptions {
+	o.Password = p
+	return o
+}
+
+// SetCredentialsProvider will set a method to be called by this client when
+// connecting to the MQTT broker that provide the current username and password.
+// Note: without the use of SSL/TLS, this information will be sent
+// in plaintext accross the wire.
+func (o *ClientOptions) SetCredentialsProvider(p CredentialsProvider) *ClientOptions {
+	o.CredentialsProvider = p
+	return o
+}
+
+// SetCleanSession will set the "clean session" flag in the connect message
+// when this client connects to an MQTT broker. By setting this flag, you are
+// indicating that no messages saved by the broker for this client should be
+// delivered. Any messages that were going to be sent by this client before
+// diconnecting previously but didn't will not be sent upon connecting to the
+// broker.
+func (o *ClientOptions) SetCleanSession(clean bool) *ClientOptions {
+	o.CleanSession = clean
+	return o
+}
+
+// SetOrderMatters will set the message routing to guarantee order within
+// each QoS level. By default, this value is true. If set to false,
+// this flag indicates that messages can be delivered asynchronously
+// from the client to the application and possibly arrive out of order.
+func (o *ClientOptions) SetOrderMatters(order bool) *ClientOptions {
+	o.Order = order
+	return o
+}
+
+// SetTLSConfig will set an SSL/TLS configuration to be used when connecting
+// to an MQTT broker. Please read the official Go documentation for more
+// information.
+func (o *ClientOptions) SetTLSConfig(t *tls.Config) *ClientOptions {
+	o.TLSConfig = *t
+	return o
+}
+
+// SetStore will set the implementation of the Store interface
+// used to provide message persistence in cases where QoS levels
+// QoS_ONE or QoS_TWO are used. If no store is provided, then the
+// client will use MemoryStore by default.
+func (o *ClientOptions) SetStore(s Store) *ClientOptions {
+	o.Store = s
+	return o
+}
+
+// SetKeepAlive will set the amount of time (in seconds) that the client
+// should wait before sending a PING request to the broker. This will
+// allow the client to know that a connection has not been lost with the
+// server.
+func (o *ClientOptions) SetKeepAlive(k time.Duration) *ClientOptions {
+	o.KeepAlive = int64(k / time.Second)
+	return o
+}
+
+// SetPingTimeout will set the amount of time (in seconds) that the client
+// will wait after sending a PING request to the broker, before deciding
+// that the connection has been lost. Default is 10 seconds.
+func (o *ClientOptions) SetPingTimeout(k time.Duration) *ClientOptions {
+	o.PingTimeout = k
+	return o
+}
+
+// SetProtocolVersion sets the MQTT version to be used to connect to the
+// broker. Legitimate values are currently 3 - MQTT 3.1 or 4 - MQTT 3.1.1
+func (o *ClientOptions) SetProtocolVersion(pv uint) *ClientOptions {
+	if pv >= 3 && pv <= 4 {
+		o.ProtocolVersion = pv
+		o.protocolVersionExplicit = true
+	}
+	return o
+}
+
+// UnsetWill will cause any set will message to be disregarded.
+func (o *ClientOptions) UnsetWill() *ClientOptions {
+	o.WillEnabled = false
+	return o
+}
+
+// SetWill accepts a string will message to be set. When the client connects,
+// it will give this will message to the broker, which will then publish the
+// provided payload (the will) to any clients that are subscribed to the provided
+// topic.
+func (o *ClientOptions) SetWill(topic string, payload string, qos byte, retained bool) *ClientOptions {
+	o.SetBinaryWill(topic, []byte(payload), qos, retained)
+	return o
+}
+
+// SetBinaryWill accepts a []byte will message to be set. When the client connects,
+// it will give this will message to the broker, which will then publish the
+// provided payload (the will) to any clients that are subscribed to the provided
+// topic.
+func (o *ClientOptions) SetBinaryWill(topic string, payload []byte, qos byte, retained bool) *ClientOptions {
+	o.WillEnabled = true
+	o.WillTopic = topic
+	o.WillPayload = payload
+	o.WillQos = qos
+	o.WillRetained = retained
+	return o
+}
+
+// SetDefaultPublishHandler sets the MessageHandler that will be called when a message
+// is received that does not match any known subscriptions.
+func (o *ClientOptions) SetDefaultPublishHandler(defaultHandler MessageHandler) *ClientOptions {
+	o.DefaultPublishHandler = defaultHandler
+	return o
+}
+
+// SetOnConnectHandler sets the function to be called when the client is connected. Both
+// at initial connection time and upon automatic reconnect.
+func (o *ClientOptions) SetOnConnectHandler(onConn OnConnectHandler) *ClientOptions {
+	o.OnConnect = onConn
+	return o
+}
+
+// SetConnectionLostHandler will set the OnConnectionLost callback to be executed
+// in the case where the client unexpectedly loses connection with the MQTT broker.
+func (o *ClientOptions) SetConnectionLostHandler(onLost ConnectionLostHandler) *ClientOptions {
+	o.OnConnectionLost = onLost
+	return o
+}
+
+// SetWriteTimeout puts a limit on how long a mqtt publish should block until it unblocks with a
+// timeout error. A duration of 0 never times out. Default 30 seconds
+func (o *ClientOptions) SetWriteTimeout(t time.Duration) *ClientOptions {
+	o.WriteTimeout = t
+	return o
+}
+
+// SetConnectTimeout limits how long the client will wait when trying to open a connection
+// to an MQTT server before timeing out and erroring the attempt. A duration of 0 never times out.
+// Default 30 seconds. Currently only operational on TCP/TLS connections.
+func (o *ClientOptions) SetConnectTimeout(t time.Duration) *ClientOptions {
+	o.ConnectTimeout = t
+	return o
+}
+
+// SetMaxReconnectInterval sets the maximum time that will be waited between reconnection attempts
+// when connection is lost
+func (o *ClientOptions) SetMaxReconnectInterval(t time.Duration) *ClientOptions {
+	o.MaxReconnectInterval = t
+	return o
+}
+
+// SetAutoReconnect sets whether the automatic reconnection logic should be used
+// when the connection is lost, even if disabled the ConnectionLostHandler is still
+// called
+func (o *ClientOptions) SetAutoReconnect(a bool) *ClientOptions {
+	o.AutoReconnect = a
+	return o
+}
+
+// SetMessageChannelDepth sets the size of the internal queue that holds messages while the
+// client is temporairily offline, allowing the application to publish when the client is
+// reconnecting. This setting is only valid if AutoReconnect is set to true, it is otherwise
+// ignored.
+func (o *ClientOptions) SetMessageChannelDepth(s uint) *ClientOptions {
+	o.MessageChannelDepth = s
+	return o
+}

vendor/github.com/eclipse/paho.mqtt.golang/options_reader.go

@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2013 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Seth Hoenig
+ *    Allan Stockdill-Mander
+ *    Mike Robertson
+ */
+
+package mqtt
+
+import (
+	"crypto/tls"
+	"net/url"
+	"time"
+)
+
+// ClientOptionsReader provides an interface for reading ClientOptions after the client has been initialized.
+type ClientOptionsReader struct {
+	options *ClientOptions
+}
+
+//Servers returns a slice of the servers defined in the clientoptions
+func (r *ClientOptionsReader) Servers() []*url.URL {
+	s := make([]*url.URL, len(r.options.Servers))
+
+	for i, u := range r.options.Servers {
+		nu := *u
+		s[i] = &nu
+	}
+
+	return s
+}
+
+//ClientID returns the set client id
+func (r *ClientOptionsReader) ClientID() string {
+	s := r.options.ClientID
+	return s
+}
+
+//Username returns the set username
+func (r *ClientOptionsReader) Username() string {
+	s := r.options.Username
+	return s
+}
+
+//Password returns the set password
+func (r *ClientOptionsReader) Password() string {
+	s := r.options.Password
+	return s
+}
+
+//CleanSession returns whether Cleansession is set
+func (r *ClientOptionsReader) CleanSession() bool {
+	s := r.options.CleanSession
+	return s
+}
+
+func (r *ClientOptionsReader) Order() bool {
+	s := r.options.Order
+	return s
+}
+
+func (r *ClientOptionsReader) WillEnabled() bool {
+	s := r.options.WillEnabled
+	return s
+}
+
+func (r *ClientOptionsReader) WillTopic() string {
+	s := r.options.WillTopic
+	return s
+}
+
+func (r *ClientOptionsReader) WillPayload() []byte {
+	s := r.options.WillPayload
+	return s
+}
+
+func (r *ClientOptionsReader) WillQos() byte {
+	s := r.options.WillQos
+	return s
+}
+
+func (r *ClientOptionsReader) WillRetained() bool {
+	s := r.options.WillRetained
+	return s
+}
+
+func (r *ClientOptionsReader) ProtocolVersion() uint {
+	s := r.options.ProtocolVersion
+	return s
+}
+
+func (r *ClientOptionsReader) TLSConfig() tls.Config {
+	s := r.options.TLSConfig
+	return s
+}
+
+func (r *ClientOptionsReader) KeepAlive() time.Duration {
+	s := time.Duration(r.options.KeepAlive * int64(time.Second))
+	return s
+}
+
+func (r *ClientOptionsReader) PingTimeout() time.Duration {
+	s := r.options.PingTimeout
+	return s
+}
+
+func (r *ClientOptionsReader) ConnectTimeout() time.Duration {
+	s := r.options.ConnectTimeout
+	return s
+}
+
+func (r *ClientOptionsReader) MaxReconnectInterval() time.Duration {
+	s := r.options.MaxReconnectInterval
+	return s
+}
+
+func (r *ClientOptionsReader) AutoReconnect() bool {
+	s := r.options.AutoReconnect
+	return s
+}
+
+func (r *ClientOptionsReader) WriteTimeout() time.Duration {
+	s := r.options.WriteTimeout
+	return s
+}
+
+func (r *ClientOptionsReader) MessageChannelDepth() uint {
+	s := r.options.MessageChannelDepth
+	return s
+}

vendor/github.com/eclipse/paho.mqtt.golang/packets/connack.go

@@ -0,0 +1,51 @@
+package packets
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+)
+
+//ConnackPacket is an internal representation of the fields of the
+//Connack MQTT packet
+type ConnackPacket struct {
+	FixedHeader
+	SessionPresent bool
+	ReturnCode     byte
+}
+
+func (ca *ConnackPacket) String() string {
+	str := fmt.Sprintf("%s", ca.FixedHeader)
+	str += " "
+	str += fmt.Sprintf("sessionpresent: %t returncode: %d", ca.SessionPresent, ca.ReturnCode)
+	return str
+}
+
+func (ca *ConnackPacket) Write(w io.Writer) error {
+	var body bytes.Buffer
+	var err error
+
+	body.WriteByte(boolToByte(ca.SessionPresent))
+	body.WriteByte(ca.ReturnCode)
+	ca.FixedHeader.RemainingLength = 2
+	packet := ca.FixedHeader.pack()
+	packet.Write(body.Bytes())
+	_, err = packet.WriteTo(w)
+
+	return err
+}
+
+//Unpack decodes the details of a ControlPacket after the fixed
+//header has been read
+func (ca *ConnackPacket) Unpack(b io.Reader) error {
+	ca.SessionPresent = 1&decodeByte(b) > 0
+	ca.ReturnCode = decodeByte(b)
+
+	return nil
+}
+
+//Details returns a Details struct containing the Qos and
+//MessageID of this ControlPacket
+func (ca *ConnackPacket) Details() Details {
+	return Details{Qos: 0, MessageID: 0}
+}

vendor/github.com/eclipse/paho.mqtt.golang/packets/connect.go

@@ -0,0 +1,126 @@
+package packets
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+)
+
+//ConnectPacket is an internal representation of the fields of the
+//Connect MQTT packet
+type ConnectPacket struct {
+	FixedHeader
+	ProtocolName    string
+	ProtocolVersion byte
+	CleanSession    bool
+	WillFlag        bool
+	WillQos         byte
+	WillRetain      bool
+	UsernameFlag    bool
+	PasswordFlag    bool
+	ReservedBit     byte
+	Keepalive       uint16
+
+	ClientIdentifier string
+	WillTopic        string
+	WillMessage      []byte
+	Username         string
+	Password         []byte
+}
+
+func (c *ConnectPacket) String() string {
+	str := fmt.Sprintf("%s", c.FixedHeader)
+	str += " "
+	str += fmt.Sprintf("protocolversion: %d protocolname: %s cleansession: %t willflag: %t WillQos: %d WillRetain: %t Usernameflag: %t Passwordflag: %t keepalive: %d clientId: %s willtopic: %s willmessage: %s Username: %s Password: %s", c.ProtocolVersion, c.ProtocolName, c.CleanSession, c.WillFlag, c.WillQos, c.WillRetain, c.UsernameFlag, c.PasswordFlag, c.Keepalive, c.ClientIdentifier, c.WillTopic, c.WillMessage, c.Username, c.Password)
+	return str
+}
+
+func (c *ConnectPacket) Write(w io.Writer) error {
+	var body bytes.Buffer
+	var err error
+
+	body.Write(encodeString(c.ProtocolName))
+	body.WriteByte(c.ProtocolVersion)
+	body.WriteByte(boolToByte(c.CleanSession)<<1 | boolToByte(c.WillFlag)<<2 | c.WillQos<<3 | boolToByte(c.WillRetain)<<5 | boolToByte(c.PasswordFlag)<<6 | boolToByte(c.UsernameFlag)<<7)
+	body.Write(encodeUint16(c.Keepalive))
+	body.Write(encodeString(c.ClientIdentifier))
+	if c.WillFlag {
+		body.Write(encodeString(c.WillTopic))
+		body.Write(encodeBytes(c.WillMessage))
+	}
+	if c.UsernameFlag {
+		body.Write(encodeString(c.Username))
+	}
+	if c.PasswordFlag {
+		body.Write(encodeBytes(c.Password))
+	}
+	c.FixedHeader.RemainingLength = body.Len()
+	packet := c.FixedHeader.pack()
+	packet.Write(body.Bytes())
+	_, err = packet.WriteTo(w)
+
+	return err
+}
+
+//Unpack decodes the details of a ControlPacket after the fixed
+//header has been read
+func (c *ConnectPacket) Unpack(b io.Reader) error {
+	c.ProtocolName = decodeString(b)
+	c.ProtocolVersion = decodeByte(b)
+	options := decodeByte(b)
+	c.ReservedBit = 1 & options
+	c.CleanSession = 1&(options>>1) > 0
+	c.WillFlag = 1&(options>>2) > 0
+	c.WillQos = 3 & (options >> 3)
+	c.WillRetain = 1&(options>>5) > 0
+	c.PasswordFlag = 1&(options>>6) > 0
+	c.UsernameFlag = 1&(options>>7) > 0
+	c.Keepalive = decodeUint16(b)
+	c.ClientIdentifier = decodeString(b)
+	if c.WillFlag {
+		c.WillTopic = decodeString(b)
+		c.WillMessage = decodeBytes(b)
+	}
+	if c.UsernameFlag {
+		c.Username = decodeString(b)
+	}
+	if c.PasswordFlag {
+		c.Password = decodeBytes(b)
+	}
+
+	return nil
+}
+
+//Validate performs validation of the fields of a Connect packet
+func (c *ConnectPacket) Validate() byte {
+	if c.PasswordFlag && !c.UsernameFlag {
+		return ErrRefusedBadUsernameOrPassword
+	}
+	if c.ReservedBit != 0 {
+		//Bad reserved bit
+		return ErrProtocolViolation
+	}
+	if (c.ProtocolName == "MQIsdp" && c.ProtocolVersion != 3) || (c.ProtocolName == "MQTT" && c.ProtocolVersion != 4) {
+		//Mismatched or unsupported protocol version
+		return ErrRefusedBadProtocolVersion
+	}
+	if c.ProtocolName != "MQIsdp" && c.ProtocolName != "MQTT" {
+		//Bad protocol name
+		return ErrProtocolViolation
+	}
+	if len(c.ClientIdentifier) > 65535 || len(c.Username) > 65535 || len(c.Password) > 65535 {
+		//Bad size field
+		return ErrProtocolViolation
+	}
+	if len(c.ClientIdentifier) == 0 && !c.CleanSession {
+		//Bad client identifier
+		return ErrRefusedIDRejected
+	}
+	return Accepted
+}
+
+//Details returns a Details struct containing the Qos and
+//MessageID of this ControlPacket
+func (c *ConnectPacket) Details() Details {
+	return Details{Qos: 0, MessageID: 0}
+}

vendor/github.com/eclipse/paho.mqtt.golang/packets/disconnect.go

@@ -0,0 +1,36 @@
+package packets
+
+import (
+	"fmt"
+	"io"
+)
+
+//DisconnectPacket is an internal representation of the fields of the
+//Disconnect MQTT packet
+type DisconnectPacket struct {
+	FixedHeader
+}
+
+func (d *DisconnectPacket) String() string {
+	str := fmt.Sprintf("%s", d.FixedHeader)
+	return str
+}
+
+func (d *DisconnectPacket) Write(w io.Writer) error {
+	packet := d.FixedHeader.pack()
+	_, err := packet.WriteTo(w)
+
+	return err
+}
+
+//Unpack decodes the details of a ControlPacket after the fixed
+//header has been read
+func (d *DisconnectPacket) Unpack(b io.Reader) error {
+	return nil
+}
+
+//Details returns a Details struct containing the Qos and
+//MessageID of this ControlPacket
+func (d *DisconnectPacket) Details() Details {
+	return Details{Qos: 0, MessageID: 0}
+}

vendor/github.com/eclipse/paho.mqtt.golang/packets/packets.go

@@ -0,0 +1,322 @@
+package packets
+
+import (
+	"bytes"
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"io"
+)
+
+//ControlPacket defines the interface for structs intended to hold
+//decoded MQTT packets, either from being read or before being
+//written
+type ControlPacket interface {
+	Write(io.Writer) error
+	Unpack(io.Reader) error
+	String() string
+	Details() Details
+}
+
+//PacketNames maps the constants for each of the MQTT packet types
+//to a string representation of their name.
+var PacketNames = map[uint8]string{
+	1:  "CONNECT",
+	2:  "CONNACK",
+	3:  "PUBLISH",
+	4:  "PUBACK",
+	5:  "PUBREC",
+	6:  "PUBREL",
+	7:  "PUBCOMP",
+	8:  "SUBSCRIBE",
+	9:  "SUBACK",
+	10: "UNSUBSCRIBE",
+	11: "UNSUBACK",
+	12: "PINGREQ",
+	13: "PINGRESP",
+	14: "DISCONNECT",
+}
+
+//Below are the constants assigned to each of the MQTT packet types
+const (
+	Connect     = 1
+	Connack     = 2
+	Publish     = 3
+	Puback      = 4
+	Pubrec      = 5
+	Pubrel      = 6
+	Pubcomp     = 7
+	Subscribe   = 8
+	Suback      = 9
+	Unsubscribe = 10
+	Unsuback    = 11
+	Pingreq     = 12
+	Pingresp    = 13
+	Disconnect  = 14
+)
+
+//Below are the const definitions for error codes returned by
+//Connect()
+const (
+	Accepted                        = 0x00
+	ErrRefusedBadProtocolVersion    = 0x01
+	ErrRefusedIDRejected            = 0x02
+	ErrRefusedServerUnavailable     = 0x03
+	ErrRefusedBadUsernameOrPassword = 0x04
+	ErrRefusedNotAuthorised         = 0x05
+	ErrNetworkError                 = 0xFE
+	ErrProtocolViolation            = 0xFF
+)
+
+//ConnackReturnCodes is a map of the error codes constants for Connect()
+//to a string representation of the error
+var ConnackReturnCodes = map[uint8]string{
+	0:   "Connection Accepted",
+	1:   "Connection Refused: Bad Protocol Version",
+	2:   "Connection Refused: Client Identifier Rejected",
+	3:   "Connection Refused: Server Unavailable",
+	4:   "Connection Refused: Username or Password in unknown format",
+	5:   "Connection Refused: Not Authorised",
+	254: "Connection Error",
+	255: "Connection Refused: Protocol Violation",
+}
+
+//ConnErrors is a map of the errors codes constants for Connect()
+//to a Go error
+var ConnErrors = map[byte]error{
+	Accepted:                        nil,
+	ErrRefusedBadProtocolVersion:    errors.New("Unnacceptable protocol version"),
+	ErrRefusedIDRejected:            errors.New("Identifier rejected"),
+	ErrRefusedServerUnavailable:     errors.New("Server Unavailable"),
+	ErrRefusedBadUsernameOrPassword: errors.New("Bad user name or password"),
+	ErrRefusedNotAuthorised:         errors.New("Not Authorized"),
+	ErrNetworkError:                 errors.New("Network Error"),
+	ErrProtocolViolation:            errors.New("Protocol Violation"),
+}
+
+//ReadPacket takes an instance of an io.Reader (such as net.Conn) and attempts
+//to read an MQTT packet from the stream. It returns a ControlPacket
+//representing the decoded MQTT packet and an error. One of these returns will
+//always be nil, a nil ControlPacket indicating an error occurred.
+func ReadPacket(r io.Reader) (cp ControlPacket, err error) {
+	var fh FixedHeader
+	b := make([]byte, 1)
+
+	_, err = io.ReadFull(r, b)
+	if err != nil {
+		return nil, err
+	}
+	fh.unpack(b[0], r)
+	cp = NewControlPacketWithHeader(fh)
+	if cp == nil {
+		return nil, errors.New("Bad data from client")
+	}
+	packetBytes := make([]byte, fh.RemainingLength)
+	n, err := io.ReadFull(r, packetBytes)
+	if err != nil {
+		return nil, err
+	}
+	if n != fh.RemainingLength {
+		return nil, errors.New("Failed to read expected data")
+	}
+
+	err = cp.Unpack(bytes.NewBuffer(packetBytes))
+	return cp, err
+}
+
+//NewControlPacket is used to create a new ControlPacket of the type specified
+//by packetType, this is usually done by reference to the packet type constants
+//defined in packets.go. The newly created ControlPacket is empty and a pointer
+//is returned.
+func NewControlPacket(packetType byte) (cp ControlPacket) {
+	switch packetType {
+	case Connect:
+		cp = &ConnectPacket{FixedHeader: FixedHeader{MessageType: Connect}}
+	case Connack:
+		cp = &ConnackPacket{FixedHeader: FixedHeader{MessageType: Connack}}
+	case Disconnect:
+		cp = &DisconnectPacket{FixedHeader: FixedHeader{MessageType: Disconnect}}
+	case Publish:
+		cp = &PublishPacket{FixedHeader: FixedHeader{MessageType: Publish}}
+	case Puback:
+		cp = &PubackPacket{FixedHeader: FixedHeader{MessageType: Puback}}
+	case Pubrec:
+		cp = &PubrecPacket{FixedHeader: FixedHeader{MessageType: Pubrec}}
+	case Pubrel:
+		cp = &PubrelPacket{FixedHeader: FixedHeader{MessageType: Pubrel, Qos: 1}}
+	case Pubcomp:
+		cp = &PubcompPacket{FixedHeader: FixedHeader{MessageType: Pubcomp}}
+	case Subscribe:
+		cp = &SubscribePacket{FixedHeader: FixedHeader{MessageType: Subscribe, Qos: 1}}
+	case Suback:
+		cp = &SubackPacket{FixedHeader: FixedHeader{MessageType: Suback}}
+	case Unsubscribe:
+		cp = &UnsubscribePacket{FixedHeader: FixedHeader{MessageType: Unsubscribe, Qos: 1}}
+	case Unsuback:
+		cp = &UnsubackPacket{FixedHeader: FixedHeader{MessageType: Unsuback}}
+	case Pingreq:
+		cp = &PingreqPacket{FixedHeader: FixedHeader{MessageType: Pingreq}}
+	case Pingresp:
+		cp = &PingrespPacket{FixedHeader: FixedHeader{MessageType: Pingresp}}
+	default:
+		return nil
+	}
+	return cp
+}
+
+//NewControlPacketWithHeader is used to create a new ControlPacket of the type
+//specified within the FixedHeader that is passed to the function.
+//The newly created ControlPacket is empty and a pointer is returned.
+func NewControlPacketWithHeader(fh FixedHeader) (cp ControlPacket) {
+	switch fh.MessageType {
+	case Connect:
+		cp = &ConnectPacket{FixedHeader: fh}
+	case Connack:
+		cp = &ConnackPacket{FixedHeader: fh}
+	case Disconnect:
+		cp = &DisconnectPacket{FixedHeader: fh}
+	case Publish:
+		cp = &PublishPacket{FixedHeader: fh}
+	case Puback:
+		cp = &PubackPacket{FixedHeader: fh}
+	case Pubrec:
+		cp = &PubrecPacket{FixedHeader: fh}
+	case Pubrel:
+		cp = &PubrelPacket{FixedHeader: fh}
+	case Pubcomp:
+		cp = &PubcompPacket{FixedHeader: fh}
+	case Subscribe:
+		cp = &SubscribePacket{FixedHeader: fh}
+	case Suback:
+		cp = &SubackPacket{FixedHeader: fh}
+	case Unsubscribe:
+		cp = &UnsubscribePacket{FixedHeader: fh}
+	case Unsuback:
+		cp = &UnsubackPacket{FixedHeader: fh}
+	case Pingreq:
+		cp = &PingreqPacket{FixedHeader: fh}
+	case Pingresp:
+		cp = &PingrespPacket{FixedHeader: fh}
+	default:
+		return nil
+	}
+	return cp
+}
+
+//Details struct returned by the Details() function called on
+//ControlPackets to present details of the Qos and MessageID
+//of the ControlPacket
+type Details struct {
+	Qos       byte
+	MessageID uint16
+}
+
+//FixedHeader is a struct to hold the decoded information from
+//the fixed header of an MQTT ControlPacket
+type FixedHeader struct {
+	MessageType     byte
+	Dup             bool
+	Qos             byte
+	Retain          bool
+	RemainingLength int
+}
+
+func (fh FixedHeader) String() string {
+	return fmt.Sprintf("%s: dup: %t qos: %d retain: %t rLength: %d", PacketNames[fh.MessageType], fh.Dup, fh.Qos, fh.Retain, fh.RemainingLength)
+}
+
+func boolToByte(b bool) byte {
+	switch b {
+	case true:
+		return 1
+	default:
+		return 0
+	}
+}
+
+func (fh *FixedHeader) pack() bytes.Buffer {
+	var header bytes.Buffer
+	header.WriteByte(fh.MessageType<<4 | boolToByte(fh.Dup)<<3 | fh.Qos<<1 | boolToByte(fh.Retain))
+	header.Write(encodeLength(fh.RemainingLength))
+	return header
+}
+
+func (fh *FixedHeader) unpack(typeAndFlags byte, r io.Reader) {
+	fh.MessageType = typeAndFlags >> 4
+	fh.Dup = (typeAndFlags>>3)&0x01 > 0
+	fh.Qos = (typeAndFlags >> 1) & 0x03
+	fh.Retain = typeAndFlags&0x01 > 0
+	fh.RemainingLength = decodeLength(r)
+}
+
+func decodeByte(b io.Reader) byte {
+	num := make([]byte, 1)
+	b.Read(num)
+	return num[0]
+}
+
+func decodeUint16(b io.Reader) uint16 {
+	num := make([]byte, 2)
+	b.Read(num)
+	return binary.BigEndian.Uint16(num)
+}
+
+func encodeUint16(num uint16) []byte {
+	bytes := make([]byte, 2)
+	binary.BigEndian.PutUint16(bytes, num)
+	return bytes
+}
+
+func encodeString(field string) []byte {
+
+	return encodeBytes([]byte(field))
+}
+
+func decodeString(b io.Reader) string {
+	return string(decodeBytes(b))
+}
+
+func decodeBytes(b io.Reader) []byte {
+	fieldLength := decodeUint16(b)
+	field := make([]byte, fieldLength)
+	b.Read(field)
+	return field
+}
+
+func encodeBytes(field []byte) []byte {
+	fieldLength := make([]byte, 2)
+	binary.BigEndian.PutUint16(fieldLength, uint16(len(field)))
+	return append(fieldLength, field...)
+}
+
+func encodeLength(length int) []byte {
+	var encLength []byte
+	for {
+		digit := byte(length % 128)
+		length /= 128
+		if length > 0 {
+			digit |= 0x80
+		}
+		encLength = append(encLength, digit)
+		if length == 0 {
+			break
+		}
+	}
+	return encLength
+}
+
+func decodeLength(r io.Reader) int {
+	var rLength uint32
+	var multiplier uint32
+	b := make([]byte, 1)
+	for multiplier < 27 { //fix: Infinite '(digit & 128) == 1' will cause the dead loop
+		io.ReadFull(r, b)
+		digit := b[0]
+		rLength |= uint32(digit&127) << multiplier
+		if (digit & 128) == 0 {
+			break
+		}
+		multiplier += 7
+	}
+	return int(rLength)
+}

vendor/github.com/eclipse/paho.mqtt.golang/packets/pingreq.go

@@ -0,0 +1,36 @@
+package packets
+
+import (
+	"fmt"
+	"io"
+)
+
+//PingreqPacket is an internal representation of the fields of the
+//Pingreq MQTT packet
+type PingreqPacket struct {
+	FixedHeader
+}
+
+func (pr *PingreqPacket) String() string {
+	str := fmt.Sprintf("%s", pr.FixedHeader)
+	return str
+}
+
+func (pr *PingreqPacket) Write(w io.Writer) error {
+	packet := pr.FixedHeader.pack()
+	_, err := packet.WriteTo(w)
+
+	return err
+}
+
+//Unpack decodes the details of a ControlPacket after the fixed
+//header has been read
+func (pr *PingreqPacket) Unpack(b io.Reader) error {
+	return nil
+}
+
+//Details returns a Details struct containing the Qos and
+//MessageID of this ControlPacket
+func (pr *PingreqPacket) Details() Details {
+	return Details{Qos: 0, MessageID: 0}
+}

vendor/github.com/eclipse/paho.mqtt.golang/packets/pingresp.go

@@ -0,0 +1,36 @@
+package packets
+
+import (
+	"fmt"
+	"io"
+)
+
+//PingrespPacket is an internal representation of the fields of the
+//Pingresp MQTT packet
+type PingrespPacket struct {
+	FixedHeader
+}
+
+func (pr *PingrespPacket) String() string {
+	str := fmt.Sprintf("%s", pr.FixedHeader)
+	return str
+}
+
+func (pr *PingrespPacket) Write(w io.Writer) error {
+	packet := pr.FixedHeader.pack()
+	_, err := packet.WriteTo(w)
+
+	return err
+}
+
+//Unpack decodes the details of a ControlPacket after the fixed
+//header has been read
+func (pr *PingrespPacket) Unpack(b io.Reader) error {
+	return nil
+}
+
+//Details returns a Details struct containing the Qos and
+//MessageID of this ControlPacket
+func (pr *PingrespPacket) Details() Details {
+	return Details{Qos: 0, MessageID: 0}
+}

vendor/github.com/eclipse/paho.mqtt.golang/packets/puback.go

@@ -0,0 +1,44 @@
+package packets
+
+import (
+	"fmt"
+	"io"
+)
+
+//PubackPacket is an internal representation of the fields of the
+//Puback MQTT packet
+type PubackPacket struct {
+	FixedHeader
+	MessageID uint16
+}
+
+func (pa *PubackPacket) String() string {
+	str := fmt.Sprintf("%s", pa.FixedHeader)
+	str += " "
+	str += fmt.Sprintf("MessageID: %d", pa.MessageID)
+	return str
+}
+
+func (pa *PubackPacket) Write(w io.Writer) error {
+	var err error
+	pa.FixedHeader.RemainingLength = 2
+	packet := pa.FixedHeader.pack()
+	packet.Write(encodeUint16(pa.MessageID))
+	_, err = packet.WriteTo(w)
+
+	return err
+}
+
+//Unpack decodes the details of a ControlPacket after the fixed
+//header has been read
+func (pa *PubackPacket) Unpack(b io.Reader) error {
+	pa.MessageID = decodeUint16(b)
+
+	return nil
+}
+
+//Details returns a Details struct containing the Qos and
+//MessageID of this ControlPacket
+func (pa *PubackPacket) Details() Details {
+	return Details{Qos: pa.Qos, MessageID: pa.MessageID}
+}

vendor/github.com/eclipse/paho.mqtt.golang/packets/pubcomp.go

@@ -0,0 +1,44 @@
+package packets
+
+import (
+	"fmt"
+	"io"
+)
+
+//PubcompPacket is an internal representation of the fields of the
+//Pubcomp MQTT packet
+type PubcompPacket struct {
+	FixedHeader
+	MessageID uint16
+}
+
+func (pc *PubcompPacket) String() string {
+	str := fmt.Sprintf("%s", pc.FixedHeader)
+	str += " "
+	str += fmt.Sprintf("MessageID: %d", pc.MessageID)
+	return str
+}
+
+func (pc *PubcompPacket) Write(w io.Writer) error {
+	var err error
+	pc.FixedHeader.RemainingLength = 2
+	packet := pc.FixedHeader.pack()
+	packet.Write(encodeUint16(pc.MessageID))
+	_, err = packet.WriteTo(w)
+
+	return err
+}
+
+//Unpack decodes the details of a ControlPacket after the fixed
+//header has been read
+func (pc *PubcompPacket) Unpack(b io.Reader) error {
+	pc.MessageID = decodeUint16(b)
+
+	return nil
+}
+
+//Details returns a Details struct containing the Qos and
+//MessageID of this ControlPacket
+func (pc *PubcompPacket) Details() Details {
+	return Details{Qos: pc.Qos, MessageID: pc.MessageID}
+}

vendor/github.com/eclipse/paho.mqtt.golang/packets/publish.go

@@ -0,0 +1,80 @@
+package packets
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+)
+
+//PublishPacket is an internal representation of the fields of the
+//Publish MQTT packet
+type PublishPacket struct {
+	FixedHeader
+	TopicName string
+	MessageID uint16
+	Payload   []byte
+}
+
+func (p *PublishPacket) String() string {
+	str := fmt.Sprintf("%s", p.FixedHeader)
+	str += " "
+	str += fmt.Sprintf("topicName: %s MessageID: %d", p.TopicName, p.MessageID)
+	str += " "
+	str += fmt.Sprintf("payload: %s", string(p.Payload))
+	return str
+}
+
+func (p *PublishPacket) Write(w io.Writer) error {
+	var body bytes.Buffer
+	var err error
+
+	body.Write(encodeString(p.TopicName))
+	if p.Qos > 0 {
+		body.Write(encodeUint16(p.MessageID))
+	}
+	p.FixedHeader.RemainingLength = body.Len() + len(p.Payload)
+	packet := p.FixedHeader.pack()
+	packet.Write(body.Bytes())
+	packet.Write(p.Payload)
+	_, err = w.Write(packet.Bytes())
+
+	return err
+}
+
+//Unpack decodes the details of a ControlPacket after the fixed
+//header has been read
+func (p *PublishPacket) Unpack(b io.Reader) error {
+	var payloadLength = p.FixedHeader.RemainingLength
+	p.TopicName = decodeString(b)
+	if p.Qos > 0 {
+		p.MessageID = decodeUint16(b)
+		payloadLength -= len(p.TopicName) + 4
+	} else {
+		payloadLength -= len(p.TopicName) + 2
+	}
+	if payloadLength < 0 {
+		return fmt.Errorf("Error upacking publish, payload length < 0")
+	}
+	p.Payload = make([]byte, payloadLength)
+	_, err := b.Read(p.Payload)
+
+	return err
+}
+
+//Copy creates a new PublishPacket with the same topic and payload
+//but an empty fixed header, useful for when you want to deliver
+//a message with different properties such as Qos but the same
+//content
+func (p *PublishPacket) Copy() *PublishPacket {
+	newP := NewControlPacket(Publish).(*PublishPacket)
+	newP.TopicName = p.TopicName
+	newP.Payload = p.Payload
+
+	return newP
+}
+
+//Details returns a Details struct containing the Qos and
+//MessageID of this ControlPacket
+func (p *PublishPacket) Details() Details {
+	return Details{Qos: p.Qos, MessageID: p.MessageID}
+}

vendor/github.com/eclipse/paho.mqtt.golang/packets/pubrec.go

@@ -0,0 +1,44 @@
+package packets
+
+import (
+	"fmt"
+	"io"
+)
+
+//PubrecPacket is an internal representation of the fields of the
+//Pubrec MQTT packet
+type PubrecPacket struct {
+	FixedHeader
+	MessageID uint16
+}
+
+func (pr *PubrecPacket) String() string {
+	str := fmt.Sprintf("%s", pr.FixedHeader)
+	str += " "
+	str += fmt.Sprintf("MessageID: %d", pr.MessageID)
+	return str
+}
+
+func (pr *PubrecPacket) Write(w io.Writer) error {
+	var err error
+	pr.FixedHeader.RemainingLength = 2
+	packet := pr.FixedHeader.pack()
+	packet.Write(encodeUint16(pr.MessageID))
+	_, err = packet.WriteTo(w)
+
+	return err
+}
+
+//Unpack decodes the details of a ControlPacket after the fixed
+//header has been read
+func (pr *PubrecPacket) Unpack(b io.Reader) error {
+	pr.MessageID = decodeUint16(b)
+
+	return nil
+}
+
+//Details returns a Details struct containing the Qos and
+//MessageID of this ControlPacket
+func (pr *PubrecPacket) Details() Details {
+	return Details{Qos: pr.Qos, MessageID: pr.MessageID}
+}

vendor/github.com/eclipse/paho.mqtt.golang/packets/pubrel.go

@@ -0,0 +1,44 @@
+package packets
+
+import (
+	"fmt"
+	"io"
+)
+
+//PubrelPacket is an internal representation of the fields of the
+//Pubrel MQTT packet
+type PubrelPacket struct {
+	FixedHeader
+	MessageID uint16
+}
+
+func (pr *PubrelPacket) String() string {
+	str := fmt.Sprintf("%s", pr.FixedHeader)
+	str += " "
+	str += fmt.Sprintf("MessageID: %d", pr.MessageID)
+	return str
+}
+
+func (pr *PubrelPacket) Write(w io.Writer) error {
+	var err error
+	pr.FixedHeader.RemainingLength = 2
+	packet := pr.FixedHeader.pack()
+	packet.Write(encodeUint16(pr.MessageID))
+	_, err = packet.WriteTo(w)
+
+	return err
+}
+
+//Unpack decodes the details of a ControlPacket after the fixed
+//header has been read
+func (pr *PubrelPacket) Unpack(b io.Reader) error {
+	pr.MessageID = decodeUint16(b)
+
+	return nil
+}
+
+//Details returns a Details struct containing the Qos and
+//MessageID of this ControlPacket
+func (pr *PubrelPacket) Details() Details {
+	return Details{Qos: pr.Qos, MessageID: pr.MessageID}
+}

vendor/github.com/eclipse/paho.mqtt.golang/packets/suback.go

@@ -0,0 +1,52 @@
+package packets
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+)
+
+//SubackPacket is an internal representation of the fields of the
+//Suback MQTT packet
+type SubackPacket struct {
+	FixedHeader
+	MessageID   uint16
+	ReturnCodes []byte
+}
+
+func (sa *SubackPacket) String() string {
+	str := fmt.Sprintf("%s", sa.FixedHeader)
+	str += " "
+	str += fmt.Sprintf("MessageID: %d", sa.MessageID)
+	return str
+}
+
+func (sa *SubackPacket) Write(w io.Writer) error {
+	var body bytes.Buffer
+	var err error
+	body.Write(encodeUint16(sa.MessageID))
+	body.Write(sa.ReturnCodes)
+	sa.FixedHeader.RemainingLength = body.Len()
+	packet := sa.FixedHeader.pack()
+	packet.Write(body.Bytes())
+	_, err = packet.WriteTo(w)
+
+	return err
+}
+
+//Unpack decodes the details of a ControlPacket after the fixed
+//header has been read
+func (sa *SubackPacket) Unpack(b io.Reader) error {
+	var qosBuffer bytes.Buffer
+	sa.MessageID = decodeUint16(b)
+	qosBuffer.ReadFrom(b)
+	sa.ReturnCodes = qosBuffer.Bytes()
+
+	return nil
+}
+
+//Details returns a Details struct containing the Qos and
+//MessageID of this ControlPacket
+func (sa *SubackPacket) Details() Details {
+	return Details{Qos: 0, MessageID: sa.MessageID}
+}

vendor/github.com/eclipse/paho.mqtt.golang/packets/subscribe.go

@@ -0,0 +1,62 @@
+package packets
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+)
+
+//SubscribePacket is an internal representation of the fields of the
+//Subscribe MQTT packet
+type SubscribePacket struct {
+	FixedHeader
+	MessageID uint16
+	Topics    []string
+	Qoss      []byte
+}
+
+func (s *SubscribePacket) String() string {
+	str := fmt.Sprintf("%s", s.FixedHeader)
+	str += " "
+	str += fmt.Sprintf("MessageID: %d topics: %s", s.MessageID, s.Topics)
+	return str
+}
+
+func (s *SubscribePacket) Write(w io.Writer) error {
+	var body bytes.Buffer
+	var err error
+
+	body.Write(encodeUint16(s.MessageID))
+	for i, topic := range s.Topics {
+		body.Write(encodeString(topic))
+		body.WriteByte(s.Qoss[i])
+	}
+	s.FixedHeader.RemainingLength = body.Len()
+	packet := s.FixedHeader.pack()
+	packet.Write(body.Bytes())
+	_, err = packet.WriteTo(w)
+
+	return err
+}
+
+//Unpack decodes the details of a ControlPacket after the fixed
+//header has been read
+func (s *SubscribePacket) Unpack(b io.Reader) error {
+	s.MessageID = decodeUint16(b)
+	payloadLength := s.FixedHeader.RemainingLength - 2
+	for payloadLength > 0 {
+		topic := decodeString(b)
+		s.Topics = append(s.Topics, topic)
+		qos := decodeByte(b)
+		s.Qoss = append(s.Qoss, qos)
+		payloadLength -= 2 + len(topic) + 1 //2 bytes of string length, plus string, plus 1 byte for Qos
+	}
+
+	return nil
+}
+
+//Details returns a Details struct containing the Qos and
+//MessageID of this ControlPacket
+func (s *SubscribePacket) Details() Details {
+	return Details{Qos: 1, MessageID: s.MessageID}
+}

vendor/github.com/eclipse/paho.mqtt.golang/packets/unsuback.go

@@ -0,0 +1,44 @@
+package packets
+
+import (
+	"fmt"
+	"io"
+)
+
+//UnsubackPacket is an internal representation of the fields of the
+//Unsuback MQTT packet
+type UnsubackPacket struct {
+	FixedHeader
+	MessageID uint16
+}
+
+func (ua *UnsubackPacket) String() string {
+	str := fmt.Sprintf("%s", ua.FixedHeader)
+	str += " "
+	str += fmt.Sprintf("MessageID: %d", ua.MessageID)
+	return str
+}
+
+func (ua *UnsubackPacket) Write(w io.Writer) error {
+	var err error
+	ua.FixedHeader.RemainingLength = 2
+	packet := ua.FixedHeader.pack()
+	packet.Write(encodeUint16(ua.MessageID))
+	_, err = packet.WriteTo(w)
+
+	return err
+}
+
+//Unpack decodes the details of a ControlPacket after the fixed
+//header has been read
+func (ua *UnsubackPacket) Unpack(b io.Reader) error {
+	ua.MessageID = decodeUint16(b)
+
+	return nil
+}
+
+//Details returns a Details struct containing the Qos and
+//MessageID of this ControlPacket
+func (ua *UnsubackPacket) Details() Details {
+	return Details{Qos: 0, MessageID: ua.MessageID}
+}

vendor/github.com/eclipse/paho.mqtt.golang/packets/unsubscribe.go

@@ -0,0 +1,55 @@
+package packets
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+)
+
+//UnsubscribePacket is an internal representation of the fields of the
+//Unsubscribe MQTT packet
+type UnsubscribePacket struct {
+	FixedHeader
+	MessageID uint16
+	Topics    []string
+}
+
+func (u *UnsubscribePacket) String() string {
+	str := fmt.Sprintf("%s", u.FixedHeader)
+	str += " "
+	str += fmt.Sprintf("MessageID: %d", u.MessageID)
+	return str
+}
+
+func (u *UnsubscribePacket) Write(w io.Writer) error {
+	var body bytes.Buffer
+	var err error
+	body.Write(encodeUint16(u.MessageID))
+	for _, topic := range u.Topics {
+		body.Write(encodeString(topic))
+	}
+	u.FixedHeader.RemainingLength = body.Len()
+	packet := u.FixedHeader.pack()
+	packet.Write(body.Bytes())
+	_, err = packet.WriteTo(w)
+
+	return err
+}
+
+//Unpack decodes the details of a ControlPacket after the fixed
+//header has been read
+func (u *UnsubscribePacket) Unpack(b io.Reader) error {
+	u.MessageID = decodeUint16(b)
+	var topic string
+	for topic = decodeString(b); topic != ""; topic = decodeString(b) {
+		u.Topics = append(u.Topics, topic)
+	}
+
+	return nil
+}
+
+//Details returns a Details struct containing the Qos and
+//MessageID of this ControlPacket
+func (u *UnsubscribePacket) Details() Details {
+	return Details{Qos: 1, MessageID: u.MessageID}
+}

vendor/github.com/eclipse/paho.mqtt.golang/ping.go

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2013 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Seth Hoenig
+ *    Allan Stockdill-Mander
+ *    Mike Robertson
+ */
+
+package mqtt
+
+import (
+	"errors"
+	"sync/atomic"
+	"time"
+
+	"github.com/eclipse/paho.mqtt.golang/packets"
+)
+
+func keepalive(c *client) {
+	defer c.workers.Done()
+	DEBUG.Println(PNG, "keepalive starting")
+	var checkInterval int64
+	var pingSent time.Time
+
+	if c.options.KeepAlive > 10 {
+		checkInterval = 5
+	} else {
+		checkInterval = c.options.KeepAlive / 2
+	}
+
+	intervalTicker := time.NewTicker(time.Duration(checkInterval * int64(time.Second)))
+	defer intervalTicker.Stop()
+
+	for {
+		select {
+		case <-c.stop:
+			DEBUG.Println(PNG, "keepalive stopped")
+			return
+		case <-intervalTicker.C:
+			DEBUG.Println(PNG, "ping check", time.Now().Unix()-atomic.LoadInt64(&c.lastSent))
+			if time.Now().Unix()-atomic.LoadInt64(&c.lastSent) >= c.options.KeepAlive || time.Now().Unix()-atomic.LoadInt64(&c.lastReceived) >= c.options.KeepAlive {
+				if atomic.LoadInt32(&c.pingOutstanding) == 0 {
+					DEBUG.Println(PNG, "keepalive sending ping")
+					ping := packets.NewControlPacket(packets.Pingreq).(*packets.PingreqPacket)
+					//We don't want to wait behind large messages being sent, the Write call
+					//will block until it it able to send the packet.
+					atomic.StoreInt32(&c.pingOutstanding, 1)
+					ping.Write(c.conn)
+					atomic.StoreInt64(&c.lastSent, time.Now().Unix())
+					pingSent = time.Now()
+				}
+			}
+			if atomic.LoadInt32(&c.pingOutstanding) > 0 && time.Now().Sub(pingSent) >= c.options.PingTimeout {
+				CRITICAL.Println(PNG, "pingresp not received, disconnecting")
+				c.errors <- errors.New("pingresp not received, disconnecting")
+				return
+			}
+		}
+	}
+}

vendor/github.com/eclipse/paho.mqtt.golang/router.go

@@ -0,0 +1,176 @@
+/*
+ * Copyright (c) 2013 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Seth Hoenig
+ *    Allan Stockdill-Mander
+ *    Mike Robertson
+ */
+
+package mqtt
+
+import (
+	"container/list"
+	"strings"
+	"sync"
+
+	"github.com/eclipse/paho.mqtt.golang/packets"
+)
+
+// route is a type which associates MQTT Topic strings with a
+// callback to be executed upon the arrival of a message associated
+// with a subscription to that topic.
+type route struct {
+	topic    string
+	callback MessageHandler
+}
+
+// match takes a slice of strings which represent the route being tested having been split on '/'
+// separators, and a slice of strings representing the topic string in the published message, similarly
+// split.
+// The function determines if the topic string matches the route according to the MQTT topic rules
+// and returns a boolean of the outcome
+func match(route []string, topic []string) bool {
+	if len(route) == 0 {
+		if len(topic) == 0 {
+			return true
+		}
+		return false
+	}
+
+	if len(topic) == 0 {
+		if route[0] == "#" {
+			return true
+		}
+		return false
+	}
+
+	if route[0] == "#" {
+		return true
+	}
+
+	if (route[0] == "+") || (route[0] == topic[0]) {
+		return match(route[1:], topic[1:])
+	}
+	return false
+}
+
+func routeIncludesTopic(route, topic string) bool {
+	return match(routeSplit(route), strings.Split(topic, "/"))
+}
+
+// removes $share and sharename when splitting the route to allow
+// shared subscription routes to correctly match the topic
+func routeSplit(route string) []string {
+	var result []string
+	if strings.HasPrefix(route, "$share") {
+		result = strings.Split(route, "/")[2:]
+	} else {
+		result = strings.Split(route, "/")
+	}
+	return result
+}
+
+// match takes the topic string of the published message and does a basic compare to the
+// string of the current Route, if they match it returns true
+func (r *route) match(topic string) bool {
+	return r.topic == topic || routeIncludesTopic(r.topic, topic)
+}
+
+type router struct {
+	sync.RWMutex
+	routes         *list.List
+	defaultHandler MessageHandler
+	messages       chan *packets.PublishPacket
+	stop           chan bool
+}
+
+// newRouter returns a new instance of a Router and channel which can be used to tell the Router
+// to stop
+func newRouter() (*router, chan bool) {
+	router := &router{routes: list.New(), messages: make(chan *packets.PublishPacket), stop: make(chan bool)}
+	stop := router.stop
+	return router, stop
+}
+
+// addRoute takes a topic string and MessageHandler callback. It looks in the current list of
+// routes to see if there is already a matching Route. If there is it replaces the current
+// callback with the new one. If not it add a new entry to the list of Routes.
+func (r *router) addRoute(topic string, callback MessageHandler) {
+	r.Lock()
+	defer r.Unlock()
+	for e := r.routes.Front(); e != nil; e = e.Next() {
+		if e.Value.(*route).match(topic) {
+			r := e.Value.(*route)
+			r.callback = callback
+			return
+		}
+	}
+	r.routes.PushBack(&route{topic: topic, callback: callback})
+}
+
+// deleteRoute takes a route string, looks for a matching Route in the list of Routes. If
+// found it removes the Route from the list.
+func (r *router) deleteRoute(topic string) {
+	r.Lock()
+	defer r.Unlock()
+	for e := r.routes.Front(); e != nil; e = e.Next() {
+		if e.Value.(*route).match(topic) {
+			r.routes.Remove(e)
+			return
+		}
+	}
+}
+
+// setDefaultHandler assigns a default callback that will be called if no matching Route
+// is found for an incoming Publish.
+func (r *router) setDefaultHandler(handler MessageHandler) {
+	r.Lock()
+	defer r.Unlock()
+	r.defaultHandler = handler
+}
+
+// matchAndDispatch takes a channel of Message pointers as input and starts a go routine that
+// takes messages off the channel, matches them against the internal route list and calls the
+// associated callback (or the defaultHandler, if one exists and no other route matched). If
+// anything is sent down the stop channel the function will end.
+func (r *router) matchAndDispatch(messages <-chan *packets.PublishPacket, order bool, client *client) {
+	go func() {
+		for {
+			select {
+			case message := <-messages:
+				sent := false
+				r.RLock()
+				handlers := []MessageHandler{}
+				for e := r.routes.Front(); e != nil; e = e.Next() {
+					if e.Value.(*route).match(message.TopicName) {
+						if order {
+							handlers = append(handlers, e.Value.(*route).callback)
+						} else {
+							go e.Value.(*route).callback(client, messageFromPublish(message))
+						}
+						sent = true
+					}
+				}
+				if !sent && r.defaultHandler != nil {
+					if order {
+						handlers = append(handlers, r.defaultHandler)
+					} else {
+						go r.defaultHandler(client, messageFromPublish(message))
+					}
+				}
+				r.RUnlock()
+				for _, handler := range handlers {
+					handler(client, messageFromPublish(message))
+				}
+			case <-r.stop:
+				return
+			}
+		}
+	}()
+}

vendor/github.com/eclipse/paho.mqtt.golang/store.go

@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) 2013 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Seth Hoenig
+ *    Allan Stockdill-Mander
+ *    Mike Robertson
+ */
+
+package mqtt
+
+import (
+	"fmt"
+	"strconv"
+
+	"github.com/eclipse/paho.mqtt.golang/packets"
+)
+
+const (
+	inboundPrefix  = "i."
+	outboundPrefix = "o."
+)
+
+// Store is an interface which can be used to provide implementations
+// for message persistence.
+// Because we may have to store distinct messages with the same
+// message ID, we need a unique key for each message. This is
+// possible by prepending "i." or "o." to each message id
+type Store interface {
+	Open()
+	Put(key string, message packets.ControlPacket)
+	Get(key string) packets.ControlPacket
+	All() []string
+	Del(key string)
+	Close()
+	Reset()
+}
+
+// A key MUST have the form "X.[messageid]"
+// where X is 'i' or 'o'
+func mIDFromKey(key string) uint16 {
+	s := key[2:]
+	i, err := strconv.Atoi(s)
+	chkerr(err)
+	return uint16(i)
+}
+
+// Return a string of the form "i.[id]"
+func inboundKeyFromMID(id uint16) string {
+	return fmt.Sprintf("%s%d", inboundPrefix, id)
+}
+
+// Return a string of the form "o.[id]"
+func outboundKeyFromMID(id uint16) string {
+	return fmt.Sprintf("%s%d", outboundPrefix, id)
+}
+
+// govern which outgoing messages are persisted
+func persistOutbound(s Store, m packets.ControlPacket) {
+	switch m.Details().Qos {
+	case 0:
+		switch m.(type) {
+		case *packets.PubackPacket, *packets.PubcompPacket:
+			// Sending puback. delete matching publish
+			// from ibound
+			s.Del(inboundKeyFromMID(m.Details().MessageID))
+		}
+	case 1:
+		switch m.(type) {
+		case *packets.PublishPacket, *packets.PubrelPacket, *packets.SubscribePacket, *packets.UnsubscribePacket:
+			// Sending publish. store in obound
+			// until puback received
+			s.Put(outboundKeyFromMID(m.Details().MessageID), m)
+		default:
+			ERROR.Println(STR, "Asked to persist an invalid message type")
+		}
+	case 2:
+		switch m.(type) {
+		case *packets.PublishPacket:
+			// Sending publish. store in obound
+			// until pubrel received
+			s.Put(outboundKeyFromMID(m.Details().MessageID), m)
+		default:
+			ERROR.Println(STR, "Asked to persist an invalid message type")
+		}
+	}
+}
+
+// govern which incoming messages are persisted
+func persistInbound(s Store, m packets.ControlPacket) {
+	switch m.Details().Qos {
+	case 0:
+		switch m.(type) {
+		case *packets.PubackPacket, *packets.SubackPacket, *packets.UnsubackPacket, *packets.PubcompPacket:
+			// Received a puback. delete matching publish
+			// from obound
+			s.Del(outboundKeyFromMID(m.Details().MessageID))
+		case *packets.PublishPacket, *packets.PubrecPacket, *packets.PingrespPacket, *packets.ConnackPacket:
+		default:
+			ERROR.Println(STR, "Asked to persist an invalid messages type")
+		}
+	case 1:
+		switch m.(type) {
+		case *packets.PublishPacket, *packets.PubrelPacket:
+			// Received a publish. store it in ibound
+			// until puback sent
+			s.Put(inboundKeyFromMID(m.Details().MessageID), m)
+		default:
+			ERROR.Println(STR, "Asked to persist an invalid messages type")
+		}
+	case 2:
+		switch m.(type) {
+		case *packets.PublishPacket:
+			// Received a publish. store it in ibound
+			// until pubrel received
+			s.Put(inboundKeyFromMID(m.Details().MessageID), m)
+		default:
+			ERROR.Println(STR, "Asked to persist an invalid messages type")
+		}
+	}
+}

vendor/github.com/eclipse/paho.mqtt.golang/token.go

@@ -0,0 +1,173 @@
+/*
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Allan Stockdill-Mander
+ */
+
+package mqtt
+
+import (
+	"sync"
+	"time"
+
+	"github.com/eclipse/paho.mqtt.golang/packets"
+)
+
+//PacketAndToken is a struct that contains both a ControlPacket and a
+//Token. This struct is passed via channels between the client interface
+//code and the underlying code responsible for sending and receiving
+//MQTT messages.
+type PacketAndToken struct {
+	p packets.ControlPacket
+	t tokenCompletor
+}
+
+//Token defines the interface for the tokens used to indicate when
+//actions have completed.
+type Token interface {
+	Wait() bool
+	WaitTimeout(time.Duration) bool
+	Error() error
+	setError(error)
+}
+
+type tokenCompletor interface {
+	Token
+	flowComplete()
+}
+
+type baseToken struct {
+	m        sync.RWMutex
+	complete chan struct{}
+	ready    bool
+	err      error
+}
+
+// Wait will wait indefinitely for the Token to complete, ie the Publish
+// to be sent and confirmed receipt from the broker
+func (b *baseToken) Wait() bool {
+	b.m.Lock()
+	defer b.m.Unlock()
+	if !b.ready {
+		<-b.complete
+		b.ready = true
+	}
+	return b.ready
+}
+
+// WaitTimeout takes a time.Duration to wait for the flow associated with the
+// Token to complete, returns true if it returned before the timeout or
+// returns false if the timeout occurred. In the case of a timeout the Token
+// does not have an error set in case the caller wishes to wait again
+func (b *baseToken) WaitTimeout(d time.Duration) bool {
+	b.m.Lock()
+	defer b.m.Unlock()
+	if !b.ready {
+		select {
+		case <-b.complete:
+			b.ready = true
+		case <-time.After(d):
+		}
+	}
+	return b.ready
+}
+
+func (b *baseToken) flowComplete() {
+	select {
+	case <-b.complete:
+	default:
+		close(b.complete)
+	}
+}
+
+func (b *baseToken) Error() error {
+	b.m.RLock()
+	defer b.m.RUnlock()
+	return b.err
+}
+
+func (b *baseToken) setError(e error) {
+	b.m.Lock()
+	defer b.m.Unlock()
+	b.err = e
+	b.flowComplete()
+}
+
+func newToken(tType byte) tokenCompletor {
+	switch tType {
+	case packets.Connect:
+		return &ConnectToken{baseToken: baseToken{complete: make(chan struct{})}}
+	case packets.Subscribe:
+		return &SubscribeToken{baseToken: baseToken{complete: make(chan struct{})}, subResult: make(map[string]byte)}
+	case packets.Publish:
+		return &PublishToken{baseToken: baseToken{complete: make(chan struct{})}}
+	case packets.Unsubscribe:
+		return &UnsubscribeToken{baseToken: baseToken{complete: make(chan struct{})}}
+	case packets.Disconnect:
+		return &DisconnectToken{baseToken: baseToken{complete: make(chan struct{})}}
+	}
+	return nil
+}
+
+//ConnectToken is an extension of Token containing the extra fields
+//required to provide information about calls to Connect()
+type ConnectToken struct {
+	baseToken
+	returnCode byte
+}
+
+//ReturnCode returns the acknowlegement code in the connack sent
+//in response to a Connect()
+func (c *ConnectToken) ReturnCode() byte {
+	c.m.RLock()
+	defer c.m.RUnlock()
+	return c.returnCode
+}
+
+//PublishToken is an extension of Token containing the extra fields
+//required to provide information about calls to Publish()
+type PublishToken struct {
+	baseToken
+	messageID uint16
+}
+
+//MessageID returns the MQTT message ID that was assigned to the
+//Publish packet when it was sent to the broker
+func (p *PublishToken) MessageID() uint16 {
+	return p.messageID
+}
+
+//SubscribeToken is an extension of Token containing the extra fields
+//required to provide information about calls to Subscribe()
+type SubscribeToken struct {
+	baseToken
+	subs      []string
+	subResult map[string]byte
+}
+
+//Result returns a map of topics that were subscribed to along with
+//the matching return code from the broker. This is either the Qos
+//value of the subscription or an error code.
+func (s *SubscribeToken) Result() map[string]byte {
+	s.m.RLock()
+	defer s.m.RUnlock()
+	return s.subResult
+}
+
+//UnsubscribeToken is an extension of Token containing the extra fields
+//required to provide information about calls to Unsubscribe()
+type UnsubscribeToken struct {
+	baseToken
+}
+
+//DisconnectToken is an extension of Token containing the extra fields
+//required to provide information about calls to Disconnect()
+type DisconnectToken struct {
+	baseToken
+}

vendor/github.com/eclipse/paho.mqtt.golang/topic.go

@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Seth Hoenig
+ *    Allan Stockdill-Mander
+ *    Mike Robertson
+ */
+
+package mqtt
+
+import (
+	"errors"
+	"strings"
+)
+
+//ErrInvalidQos is the error returned when an packet is to be sent
+//with an invalid Qos value
+var ErrInvalidQos = errors.New("Invalid QoS")
+
+//ErrInvalidTopicEmptyString is the error returned when a topic string
+//is passed in that is 0 length
+var ErrInvalidTopicEmptyString = errors.New("Invalid Topic; empty string")
+
+//ErrInvalidTopicMultilevel is the error returned when a topic string
+//is passed in that has the multi level wildcard in any position but
+//the last
+var ErrInvalidTopicMultilevel = errors.New("Invalid Topic; multi-level wildcard must be last level")
+
+// Topic Names and Topic Filters
+// The MQTT v3.1.1 spec clarifies a number of ambiguities with regard
+// to the validity of Topic strings.
+// - A Topic must be between 1 and 65535 bytes.
+// - A Topic is case sensitive.
+// - A Topic may contain whitespace.
+// - A Topic containing a leading forward slash is different than a Topic without.
+// - A Topic may be "/" (two levels, both empty string).
+// - A Topic must be UTF-8 encoded.
+// - A Topic may contain any number of levels.
+// - A Topic may contain an empty level (two forward slashes in a row).
+// - A TopicName may not contain a wildcard.
+// - A TopicFilter may only have a # (multi-level) wildcard as the last level.
+// - A TopicFilter may contain any number of + (single-level) wildcards.
+// - A TopicFilter with a # will match the absense of a level
+//     Example:  a subscription to "foo/#" will match messages published to "foo".
+
+func validateSubscribeMap(subs map[string]byte) ([]string, []byte, error) {
+	var topics []string
+	var qoss []byte
+	for topic, qos := range subs {
+		if err := validateTopicAndQos(topic, qos); err != nil {
+			return nil, nil, err
+		}
+		topics = append(topics, topic)
+		qoss = append(qoss, qos)
+	}
+
+	return topics, qoss, nil
+}
+
+func validateTopicAndQos(topic string, qos byte) error {
+	if len(topic) == 0 {
+		return ErrInvalidTopicEmptyString
+	}
+
+	levels := strings.Split(topic, "/")
+	for i, level := range levels {
+		if level == "#" && i != len(levels)-1 {
+			return ErrInvalidTopicMultilevel
+		}
+	}
+
+	if qos < 0 || qos > 2 {
+		return ErrInvalidQos
+	}
+	return nil
+}

vendor/github.com/eclipse/paho.mqtt.golang/trace.go

@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2013 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Seth Hoenig
+ *    Allan Stockdill-Mander
+ *    Mike Robertson
+ */
+
+package mqtt
+
+type (
+	// Logger interface allows implementations to provide to this package any
+	// object that implements the methods defined in it.
+	Logger interface {
+		Println(v ...interface{})
+		Printf(format string, v ...interface{})
+	}
+
+	// NOOPLogger implements the logger that does not perform any operation
+	// by default. This allows us to efficiently discard the unwanted messages.
+	NOOPLogger struct{}
+)
+
+func (NOOPLogger) Println(v ...interface{}) {}
+func (NOOPLogger) Printf(format string, v ...interface{}) {}
+
+// Internal levels of library output that are initialised to not print
+// anything but can be overridden by programmer
+var (
+	ERROR    Logger = NOOPLogger{}
+	CRITICAL Logger = NOOPLogger{}
+	WARN     Logger = NOOPLogger{}
+	DEBUG    Logger = NOOPLogger{}
+)

vendor/github.com/jacobsa/go-serial/LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
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+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
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+      including but not limited to software source code, documentation
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+
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+      transformation or translation of a Source form, including but
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+
+      "Work" shall mean the work of authorship, whether in Source or
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+      form, that is based on (or derived from) the Work and for which the
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+      of this License, Derivative Works shall not include works that remain
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+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
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+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
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+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
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+
+      (d) If the Work includes a "NOTICE" text file as part of its
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+          include a readable copy of the attribution notices contained
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+          of the NOTICE file are for informational purposes only and
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+          notices within Derivative Works that You distribute, alongside
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+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
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+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
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+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
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+      Work (including but not limited to damages for loss of goodwill,
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+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
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+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
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+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/github.com/jacobsa/go-serial/serial/Makefile

@@ -0,0 +1,8 @@
+include $(GOROOT)/src/Make.inc
+
+TARG=github.com/jacobsa/go-serial/serial
+GOFILES=\
+	serial.go\
+	open_$(GOOS).go\
+
+include $(GOROOT)/src/Make.pkg

vendor/github.com/jacobsa/go-serial/serial/open_darwin.go

@@ -0,0 +1,258 @@
+// Copyright 2011 Aaron Jacobs. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This file contains OS-specific constants and types that work on OS X (tested
+// on version 10.6.8).
+//
+// Helpful documentation for some of these options:
+//
+//     http://www.unixwiz.net/techtips/termios-vmin-vtime.html
+//     http://www.taltech.com/support/entry/serial_intro
+//     http://www.cs.utah.edu/dept/old/texinfo/glibc-manual-0.02/library_16.html
+//     http://permalink.gmane.org/gmane.linux.kernel/103713
+//
+
+package serial
+
+import (
+	"errors"
+	"io"
+)
+import "os"
+import "syscall"
+import "unsafe"
+
+// termios types
+type cc_t byte
+type speed_t uint64
+type tcflag_t uint64
+
+// sys/termios.h
+const (
+	kCS5        = 0x00000000
+	kCS6        = 0x00000100
+	kCS7        = 0x00000200
+	kCS8        = 0x00000300
+	kCLOCAL     = 0x00008000
+	kCREAD      = 0x00000800
+	kCSTOPB     = 0x00000400
+	kIGNPAR     = 0x00000004
+	kPARENB     = 0x00001000
+	kPARODD     = 0x00002000
+	kCCTS_OFLOW = 0x00010000
+	kCRTS_IFLOW = 0x00020000
+	kCRTSCTS    = kCCTS_OFLOW | kCRTS_IFLOW
+
+	kNCCS = 20
+
+	kVMIN  = tcflag_t(16)
+	kVTIME = tcflag_t(17)
+)
+
+const (
+
+	// sys/ttycom.h
+	kTIOCGETA = 1078490131
+	kTIOCSETA = 2152231956
+
+	// IOKit: serial/ioss.h
+	kIOSSIOSPEED = 0x80045402
+)
+
+// sys/termios.h
+type termios struct {
+	c_iflag  tcflag_t
+	c_oflag  tcflag_t
+	c_cflag  tcflag_t
+	c_lflag  tcflag_t
+	c_cc     [kNCCS]cc_t
+	c_ispeed speed_t
+	c_ospeed speed_t
+}
+
+// setTermios updates the termios struct associated with a serial port file
+// descriptor. This sets appropriate options for how the OS interacts with the
+// port.
+func setTermios(fd uintptr, src *termios) error {
+	// Make the ioctl syscall that sets the termios struct.
+	r1, _, errno :=
+		syscall.Syscall(
+			syscall.SYS_IOCTL,
+			fd,
+			uintptr(kTIOCSETA),
+			uintptr(unsafe.Pointer(src)))
+
+	// Did the syscall return an error?
+	if errno != 0 {
+		return os.NewSyscallError("SYS_IOCTL", errno)
+	}
+
+	// Just in case, check the return value as well.
+	if r1 != 0 {
+		return errors.New("Unknown error from SYS_IOCTL.")
+	}
+
+	return nil
+}
+
+func convertOptions(options OpenOptions) (*termios, error) {
+	var result termios
+
+	// Ignore modem status lines. We don't want to receive SIGHUP when the serial
+	// port is disconnected, for example.
+	result.c_cflag |= kCLOCAL
+
+	// Enable receiving data.
+	//
+	// NOTE(jacobsa): I don't know exactly what this flag is for. The man page
+	// seems to imply that it shouldn't really exist.
+	result.c_cflag |= kCREAD
+
+	// Sanity check inter-character timeout and minimum read size options.
+	vtime := uint(round(float64(options.InterCharacterTimeout)/100.0) * 100)
+	vmin := options.MinimumReadSize
+
+	if vmin == 0 && vtime < 100 {
+		return nil, errors.New("Invalid values for InterCharacterTimeout and MinimumReadSize.")
+	}
+
+	if vtime > 25500 {
+		return nil, errors.New("Invalid value for InterCharacterTimeout.")
+	}
+
+	// Set VMIN and VTIME. Make sure to convert to tenths of seconds for VTIME.
+	result.c_cc[kVTIME] = cc_t(vtime / 100)
+	result.c_cc[kVMIN] = cc_t(vmin)
+
+	if !IsStandardBaudRate(options.BaudRate) {
+		// Non-standard baud-rates cannot be set via the standard IOCTL.
+		//
+		// Set an arbitrary baudrate. We'll set the real one later.
+		result.c_ispeed = 14400
+		result.c_ospeed = 14400
+	} else {
+		result.c_ispeed = speed_t(options.BaudRate)
+		result.c_ospeed = speed_t(options.BaudRate)
+	}
+
+	// Data bits
+	switch options.DataBits {
+	case 5:
+		result.c_cflag |= kCS5
+	case 6:
+		result.c_cflag |= kCS6
+	case 7:
+		result.c_cflag |= kCS7
+	case 8:
+		result.c_cflag |= kCS8
+	default:
+		return nil, errors.New("Invalid setting for DataBits.")
+	}
+
+	// Stop bits
+	switch options.StopBits {
+	case 1:
+		// Nothing to do; CSTOPB is already cleared.
+	case 2:
+		result.c_cflag |= kCSTOPB
+	default:
+		return nil, errors.New("Invalid setting for StopBits.")
+	}
+
+	// Parity mode
+	switch options.ParityMode {
+	case PARITY_NONE:
+		// Nothing to do; PARENB is already not set.
+	case PARITY_ODD:
+		// Enable parity generation and receiving at the hardware level using
+		// PARENB, but continue to deliver all bytes to the user no matter what (by
+		// not setting INPCK). Also turn on odd parity mode.
+		result.c_cflag |= kPARENB
+		result.c_cflag |= kPARODD
+	case PARITY_EVEN:
+		// Enable parity generation and receiving at the hardware level using
+		// PARENB, but continue to deliver all bytes to the user no matter what (by
+		// not setting INPCK). Leave out PARODD to use even mode.
+		result.c_cflag |= kPARENB
+	default:
+		return nil, errors.New("Invalid setting for ParityMode.")
+	}
+
+	if options.RTSCTSFlowControl {
+		result.c_cflag |= kCRTSCTS
+	}
+
+	return &result, nil
+}
+
+func openInternal(options OpenOptions) (io.ReadWriteCloser, error) {
+	// Open the serial port in non-blocking mode, since otherwise the OS will
+	// wait for the CARRIER line to be asserted.
+	file, err :=
+		os.OpenFile(
+			options.PortName,
+			syscall.O_RDWR|syscall.O_NOCTTY|syscall.O_NONBLOCK,
+			0600)
+
+	if err != nil {
+		return nil, err
+	}
+
+	// We want to do blocking I/O, so clear the non-blocking flag set above.
+	r1, _, errno :=
+		syscall.Syscall(
+			syscall.SYS_FCNTL,
+			uintptr(file.Fd()),
+			uintptr(syscall.F_SETFL),
+			uintptr(0))
+
+	if errno != 0 {
+		return nil, os.NewSyscallError("SYS_FCNTL", errno)
+	}
+
+	if r1 != 0 {
+		return nil, errors.New("Unknown error from SYS_FCNTL.")
+	}
+
+	// Set standard termios options.
+	terminalOptions, err := convertOptions(options)
+	if err != nil {
+		return nil, err
+	}
+
+	err = setTermios(file.Fd(), terminalOptions)
+	if err != nil {
+		return nil, err
+	}
+
+	if !IsStandardBaudRate(options.BaudRate) {
+		// Set baud rate with the IOSSIOSPEED ioctl, to support non-standard speeds.
+		r2, _, errno2 := syscall.Syscall(
+			syscall.SYS_IOCTL,
+			uintptr(file.Fd()),
+			uintptr(kIOSSIOSPEED),
+			uintptr(unsafe.Pointer(&options.BaudRate)))
+
+		if errno2 != 0 {
+			return nil, os.NewSyscallError("SYS_IOCTL", errno2)
+		}
+
+		if r2 != 0 {
+			return nil, errors.New("Unknown error from SYS_IOCTL.")
+		}
+	}
+
+	// We're done.
+	return file, nil
+}

vendor/github.com/jacobsa/go-serial/serial/open_freebsd.go

@@ -0,0 +1,21 @@
+// Copyright 2011 Aaron Jacobs. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package serial
+
+import "io"
+
+func openInternal(options OpenOptions) (io.ReadWriteCloser, error) {
+	return nil, "Not implemented on this OS."
+}

vendor/github.com/jacobsa/go-serial/serial/open_linux.go

@@ -0,0 +1,209 @@
+package serial
+
+import (
+	"errors"
+	"io"
+	"os"
+	"syscall"
+	"unsafe"
+
+	"golang.org/x/sys/unix"
+)
+
+//
+// Grab the constants with the following little program, to avoid using cgo:
+//
+// #include <stdio.h>
+// #include <stdlib.h>
+// #include <linux/termios.h>
+//
+// int main(int argc, const char **argv) {
+//   printf("TCSETS2 = 0x%08X\n", TCSETS2);
+//   printf("BOTHER  = 0x%08X\n", BOTHER);
+//   printf("NCCS    = %d\n",     NCCS);
+//   return 0;
+// }
+//
+const (
+	kTCSETS2 = 0x402C542B
+	kBOTHER  = 0x1000
+	kNCCS    = 19
+)
+
+//
+// Types from asm-generic/termbits.h
+//
+
+type cc_t byte
+type speed_t uint32
+type tcflag_t uint32
+type termios2 struct {
+	c_iflag  tcflag_t    // input mode flags
+	c_oflag  tcflag_t    // output mode flags
+	c_cflag  tcflag_t    // control mode flags
+	c_lflag  tcflag_t    // local mode flags
+	c_line   cc_t        // line discipline
+	c_cc     [kNCCS]cc_t // control characters
+	c_ispeed speed_t     // input speed
+	c_ospeed speed_t     // output speed
+}
+
+// Constants for RS485 operation
+
+const (
+	sER_RS485_ENABLED        = (1 << 0)
+	sER_RS485_RTS_ON_SEND    = (1 << 1)
+	sER_RS485_RTS_AFTER_SEND = (1 << 2)
+	sER_RS485_RX_DURING_TX   = (1 << 4)
+	tIOCSRS485               = 0x542F
+)
+
+type serial_rs485 struct {
+	flags                 uint32
+	delay_rts_before_send uint32
+	delay_rts_after_send  uint32
+	padding               [5]uint32
+}
+
+//
+// Returns a pointer to an instantiates termios2 struct, based on the given
+// OpenOptions. Termios2 is a Linux extension which allows arbitrary baud rates
+// to be specified.
+//
+func makeTermios2(options OpenOptions) (*termios2, error) {
+
+	// Sanity check inter-character timeout and minimum read size options.
+
+	vtime := uint(round(float64(options.InterCharacterTimeout)/100.0) * 100)
+	vmin := options.MinimumReadSize
+
+	if vmin == 0 && vtime < 100 {
+		return nil, errors.New("invalid values for InterCharacterTimeout and MinimumReadSize")
+	}
+
+	if vtime > 25500 {
+		return nil, errors.New("invalid value for InterCharacterTimeout")
+	}
+
+	ccOpts := [kNCCS]cc_t{}
+	ccOpts[syscall.VTIME] = cc_t(vtime / 100)
+	ccOpts[syscall.VMIN] = cc_t(vmin)
+
+	t2 := &termios2{
+		c_cflag:  syscall.CLOCAL | syscall.CREAD | kBOTHER,
+		c_ispeed: speed_t(options.BaudRate),
+		c_ospeed: speed_t(options.BaudRate),
+		c_cc:     ccOpts,
+	}
+
+	switch options.StopBits {
+	case 1:
+	case 2:
+		t2.c_cflag |= syscall.CSTOPB
+
+	default:
+		return nil, errors.New("invalid setting for StopBits")
+	}
+
+	switch options.ParityMode {
+	case PARITY_NONE:
+	case PARITY_ODD:
+		t2.c_cflag |= syscall.PARENB
+		t2.c_cflag |= syscall.PARODD
+
+	case PARITY_EVEN:
+		t2.c_cflag |= syscall.PARENB
+
+	default:
+		return nil, errors.New("invalid setting for ParityMode")
+	}
+
+	switch options.DataBits {
+	case 5:
+		t2.c_cflag |= syscall.CS5
+	case 6:
+		t2.c_cflag |= syscall.CS6
+	case 7:
+		t2.c_cflag |= syscall.CS7
+	case 8:
+		t2.c_cflag |= syscall.CS8
+	default:
+		return nil, errors.New("invalid setting for DataBits")
+	}
+
+	if options.RTSCTSFlowControl {
+		t2.c_cflag |= unix.CRTSCTS
+	}
+
+	return t2, nil
+}
+
+func openInternal(options OpenOptions) (io.ReadWriteCloser, error) {
+
+	file, openErr :=
+		os.OpenFile(
+			options.PortName,
+			syscall.O_RDWR|syscall.O_NOCTTY|syscall.O_NONBLOCK,
+			0600)
+	if openErr != nil {
+		return nil, openErr
+	}
+
+	// Clear the non-blocking flag set above.
+	nonblockErr := syscall.SetNonblock(int(file.Fd()), false)
+	if nonblockErr != nil {
+		return nil, nonblockErr
+	}
+
+	t2, optErr := makeTermios2(options)
+	if optErr != nil {
+		return nil, optErr
+	}
+
+	r, _, errno := syscall.Syscall(
+		syscall.SYS_IOCTL,
+		uintptr(file.Fd()),
+		uintptr(kTCSETS2),
+		uintptr(unsafe.Pointer(t2)))
+
+	if errno != 0 {
+		return nil, os.NewSyscallError("SYS_IOCTL", errno)
+	}
+
+	if r != 0 {
+		return nil, errors.New("unknown error from SYS_IOCTL")
+	}
+
+	if options.Rs485Enable {
+		rs485 := serial_rs485{
+			sER_RS485_ENABLED,
+			uint32(options.Rs485DelayRtsBeforeSend),
+			uint32(options.Rs485DelayRtsAfterSend),
+			[5]uint32{0, 0, 0, 0, 0},
+		}
+
+		if options.Rs485RtsHighDuringSend {
+			rs485.flags |= sER_RS485_RTS_ON_SEND
+		}
+
+		if options.Rs485RtsHighAfterSend {
+			rs485.flags |= sER_RS485_RTS_AFTER_SEND
+		}
+
+		r, _, errno := syscall.Syscall(
+			syscall.SYS_IOCTL,
+			uintptr(file.Fd()),
+			uintptr(tIOCSRS485),
+			uintptr(unsafe.Pointer(&rs485)))
+
+		if errno != 0 {
+			return nil, os.NewSyscallError("SYS_IOCTL (RS485)", errno)
+		}
+
+		if r != 0 {
+			return nil, errors.New("Unknown error from SYS_IOCTL (RS485)")
+		}
+	}
+
+	return file, nil
+}

vendor/github.com/jacobsa/go-serial/serial/open_windows.go

@@ -0,0 +1,322 @@
+// Copyright 2011 Aaron Jacobs. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package serial
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"sync"
+	"syscall"
+	"unsafe"
+)
+
+type serialPort struct {
+	f  *os.File
+	fd syscall.Handle
+	rl sync.Mutex
+	wl sync.Mutex
+	ro *syscall.Overlapped
+	wo *syscall.Overlapped
+}
+
+type structDCB struct {
+	DCBlength, BaudRate                            uint32
+	flags                                          [4]byte
+	wReserved, XonLim, XoffLim                     uint16
+	ByteSize, Parity, StopBits                     byte
+	XonChar, XoffChar, ErrorChar, EofChar, EvtChar byte
+	wReserved1                                     uint16
+}
+
+type structTimeouts struct {
+	ReadIntervalTimeout         uint32
+	ReadTotalTimeoutMultiplier  uint32
+	ReadTotalTimeoutConstant    uint32
+	WriteTotalTimeoutMultiplier uint32
+	WriteTotalTimeoutConstant   uint32
+}
+
+func openInternal(options OpenOptions) (io.ReadWriteCloser, error) {
+	if len(options.PortName) > 0 && options.PortName[0] != '\\' {
+		options.PortName = "\\\\.\\" + options.PortName
+	}
+
+	h, err := syscall.CreateFile(syscall.StringToUTF16Ptr(options.PortName),
+		syscall.GENERIC_READ|syscall.GENERIC_WRITE,
+		0,
+		nil,
+		syscall.OPEN_EXISTING,
+		syscall.FILE_ATTRIBUTE_NORMAL|syscall.FILE_FLAG_OVERLAPPED,
+		0)
+	if err != nil {
+		return nil, err
+	}
+	f := os.NewFile(uintptr(h), options.PortName)
+	defer func() {
+		if err != nil {
+			f.Close()
+		}
+	}()
+
+	if err = setCommState(h, options); err != nil {
+		return nil, err
+	}
+	if err = setupComm(h, 64, 64); err != nil {
+		return nil, err
+	}
+	if err = setCommTimeouts(h, options); err != nil {
+		return nil, err
+	}
+	if err = setCommMask(h); err != nil {
+		return nil, err
+	}
+
+	ro, err := newOverlapped()
+	if err != nil {
+		return nil, err
+	}
+	wo, err := newOverlapped()
+	if err != nil {
+		return nil, err
+	}
+	port := new(serialPort)
+	port.f = f
+	port.fd = h
+	port.ro = ro
+	port.wo = wo
+
+	return port, nil
+}
+
+func (p *serialPort) Close() error {
+	return p.f.Close()
+}
+
+func (p *serialPort) Write(buf []byte) (int, error) {
+	p.wl.Lock()
+	defer p.wl.Unlock()
+
+	if err := resetEvent(p.wo.HEvent); err != nil {
+		return 0, err
+	}
+	var n uint32
+	err := syscall.WriteFile(p.fd, buf, &n, p.wo)
+	if err != nil && err != syscall.ERROR_IO_PENDING {
+		return int(n), err
+	}
+	return getOverlappedResult(p.fd, p.wo)
+}
+
+func (p *serialPort) Read(buf []byte) (int, error) {
+	if p == nil || p.f == nil {
+		return 0, fmt.Errorf("Invalid port on read %v %v", p, p.f)
+	}
+
+	p.rl.Lock()
+	defer p.rl.Unlock()
+
+	if err := resetEvent(p.ro.HEvent); err != nil {
+		return 0, err
+	}
+	var done uint32
+	err := syscall.ReadFile(p.fd, buf, &done, p.ro)
+	if err != nil && err != syscall.ERROR_IO_PENDING {
+		return int(done), err
+	}
+	return getOverlappedResult(p.fd, p.ro)
+}
+
+var (
+	nSetCommState,
+	nSetCommTimeouts,
+	nSetCommMask,
+	nSetupComm,
+	nGetOverlappedResult,
+	nCreateEvent,
+	nResetEvent uintptr
+)
+
+func init() {
+	k32, err := syscall.LoadLibrary("kernel32.dll")
+	if err != nil {
+		panic("LoadLibrary " + err.Error())
+	}
+	defer syscall.FreeLibrary(k32)
+
+	nSetCommState = getProcAddr(k32, "SetCommState")
+	nSetCommTimeouts = getProcAddr(k32, "SetCommTimeouts")
+	nSetCommMask = getProcAddr(k32, "SetCommMask")
+	nSetupComm = getProcAddr(k32, "SetupComm")
+	nGetOverlappedResult = getProcAddr(k32, "GetOverlappedResult")
+	nCreateEvent = getProcAddr(k32, "CreateEventW")
+	nResetEvent = getProcAddr(k32, "ResetEvent")
+}
+
+func getProcAddr(lib syscall.Handle, name string) uintptr {
+	addr, err := syscall.GetProcAddress(lib, name)
+	if err != nil {
+		panic(name + " " + err.Error())
+	}
+	return addr
+}
+
+func setCommState(h syscall.Handle, options OpenOptions) error {
+	var params structDCB
+	params.DCBlength = uint32(unsafe.Sizeof(params))
+
+	params.flags[0] = 0x01  // fBinary
+	params.flags[0] |= 0x10 // Assert DSR
+
+	if options.ParityMode != PARITY_NONE {
+		params.flags[0] |= 0x03 // fParity
+		params.Parity = byte(options.ParityMode)
+	}
+
+	if options.StopBits == 1 {
+		params.StopBits = 0
+	} else if options.StopBits == 2 {
+		params.StopBits = 2
+	}
+
+	params.BaudRate = uint32(options.BaudRate)
+	params.ByteSize = byte(options.DataBits)
+
+	if options.RTSCTSFlowControl {
+		params.flags[0] |= 0x04 // fOutxCtsFlow = 0x1
+		params.flags[1] |= 0x20 // fRtsControl = RTS_CONTROL_HANDSHAKE (0x2)
+	}
+
+	r, _, err := syscall.Syscall(nSetCommState, 2, uintptr(h), uintptr(unsafe.Pointer(&params)), 0)
+	if r == 0 {
+		return err
+	}
+	return nil
+}
+
+func setCommTimeouts(h syscall.Handle, options OpenOptions) error {
+	var timeouts structTimeouts
+	const MAXDWORD = 1<<32 - 1
+	timeoutConstant := uint32(round(float64(options.InterCharacterTimeout) / 100.0))
+	readIntervalTimeout := uint32(options.MinimumReadSize)
+
+	if timeoutConstant > 0 && readIntervalTimeout == 0 {
+		//Assume we're setting for non blocking IO.
+		timeouts.ReadIntervalTimeout = MAXDWORD
+		timeouts.ReadTotalTimeoutMultiplier = MAXDWORD
+		timeouts.ReadTotalTimeoutConstant = timeoutConstant
+	} else if readIntervalTimeout > 0 {
+		// Assume we want to block and wait for input.
+		timeouts.ReadIntervalTimeout = readIntervalTimeout
+		timeouts.ReadTotalTimeoutMultiplier = 1
+		timeouts.ReadTotalTimeoutConstant = 1
+	} else {
+		// No idea what we intended, use defaults
+		// default config does what it did before.
+		timeouts.ReadIntervalTimeout = MAXDWORD
+		timeouts.ReadTotalTimeoutMultiplier = MAXDWORD
+		timeouts.ReadTotalTimeoutConstant = MAXDWORD - 1
+	}
+
+	/*
+			Empirical testing has shown that to have non-blocking IO we need to set:
+				ReadTotalTimeoutConstant > 0 and
+				ReadTotalTimeoutMultiplier = MAXDWORD and
+				ReadIntervalTimeout = MAXDWORD
+
+				The documentation states that ReadIntervalTimeout is set in MS but
+				empirical investigation determines that it seems to interpret in units
+				of 100ms.
+
+				If InterCharacterTimeout is set at all it seems that the port will block
+				indefinitly until a character is received.  Not all circumstances have been
+				tested. The input of an expert would be appreciated.
+
+			From http://msdn.microsoft.com/en-us/library/aa363190(v=VS.85).aspx
+
+			 For blocking I/O see below:
+
+			 Remarks:
+
+			 If an application sets ReadIntervalTimeout and
+			 ReadTotalTimeoutMultiplier to MAXDWORD and sets
+			 ReadTotalTimeoutConstant to a value greater than zero and
+			 less than MAXDWORD, one of the following occurs when the
+			 ReadFile function is called:
+
+			 If there are any bytes in the input buffer, ReadFile returns
+			       immediately with the bytes in the buffer.
+
+			 If there are no bytes in the input buffer, ReadFile waits
+		               until a byte arrives and then returns immediately.
+
+			 If no bytes arrive within the time specified by
+			       ReadTotalTimeoutConstant, ReadFile times out.
+	*/
+
+	r, _, err := syscall.Syscall(nSetCommTimeouts, 2, uintptr(h), uintptr(unsafe.Pointer(&timeouts)), 0)
+	if r == 0 {
+		return err
+	}
+	return nil
+}
+
+func setupComm(h syscall.Handle, in, out int) error {
+	r, _, err := syscall.Syscall(nSetupComm, 3, uintptr(h), uintptr(in), uintptr(out))
+	if r == 0 {
+		return err
+	}
+	return nil
+}
+
+func setCommMask(h syscall.Handle) error {
+	const EV_RXCHAR = 0x0001
+	r, _, err := syscall.Syscall(nSetCommMask, 2, uintptr(h), EV_RXCHAR, 0)
+	if r == 0 {
+		return err
+	}
+	return nil
+}
+
+func resetEvent(h syscall.Handle) error {
+	r, _, err := syscall.Syscall(nResetEvent, 1, uintptr(h), 0, 0)
+	if r == 0 {
+		return err
+	}
+	return nil
+}
+
+func newOverlapped() (*syscall.Overlapped, error) {
+	var overlapped syscall.Overlapped
+	r, _, err := syscall.Syscall6(nCreateEvent, 4, 0, 1, 0, 0, 0, 0)
+	if r == 0 {
+		return nil, err
+	}
+	overlapped.HEvent = syscall.Handle(r)
+	return &overlapped, nil
+}
+
+func getOverlappedResult(h syscall.Handle, overlapped *syscall.Overlapped) (int, error) {
+	var n int
+	r, _, err := syscall.Syscall6(nGetOverlappedResult, 4,
+		uintptr(h),
+		uintptr(unsafe.Pointer(overlapped)),
+		uintptr(unsafe.Pointer(&n)), 1, 0, 0)
+	if r == 0 {
+		return n, err
+	}
+
+	return n, nil
+}

vendor/github.com/jacobsa/go-serial/serial/serial.go

@@ -0,0 +1,171 @@
+// Copyright 2011 Aaron Jacobs. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package serial provides routines for interacting with serial ports.
+// Currently it supports only OS X; see the readme file for details.
+
+package serial
+
+import (
+	"io"
+	"math"
+)
+
+// Valid parity values.
+type ParityMode int
+
+const (
+	PARITY_NONE ParityMode = 0
+	PARITY_ODD  ParityMode = 1
+	PARITY_EVEN ParityMode = 2
+)
+
+var (
+	// The list of standard baud-rates.
+	StandardBaudRates = map[uint]bool{
+		50:     true,
+		75:     true,
+		110:    true,
+		134:    true,
+		150:    true,
+		200:    true,
+		300:    true,
+		600:    true,
+		1200:   true,
+		1800:   true,
+		2400:   true,
+		4800:   true,
+		7200:   true,
+		9600:   true,
+		14400:  true,
+		19200:  true,
+		28800:  true,
+		38400:  true,
+		57600:  true,
+		76800:  true,
+		115200: true,
+		230400: true,
+	}
+)
+
+// IsStandardBaudRate checks whether the specified baud-rate is standard.
+//
+// Some operating systems may support non-standard baud-rates (OSX) via
+// additional IOCTL.
+func IsStandardBaudRate(baudRate uint) bool { return StandardBaudRates[baudRate] }
+
+// OpenOptions is the struct containing all of the options necessary for
+// opening a serial port.
+type OpenOptions struct {
+	// The name of the port, e.g. "/dev/tty.usbserial-A8008HlV".
+	PortName string
+
+	// The baud rate for the port.
+	BaudRate uint
+
+	// The number of data bits per frame. Legal values are 5, 6, 7, and 8.
+	DataBits uint
+
+	// The number of stop bits per frame. Legal values are 1 and 2.
+	StopBits uint
+
+	// The type of parity bits to use for the connection. Currently parity errors
+	// are simply ignored; that is, bytes are delivered to the user no matter
+	// whether they were received with a parity error or not.
+	ParityMode ParityMode
+
+	// Enable RTS/CTS (hardware) flow control.
+	RTSCTSFlowControl bool
+
+	// An inter-character timeout value, in milliseconds, and a minimum number of
+	// bytes to block for on each read. A call to Read() that otherwise may block
+	// waiting for more data will return immediately if the specified amount of
+	// time elapses between successive bytes received from the device or if the
+	// minimum number of bytes has been exceeded.
+	//
+	// Note that the inter-character timeout value may be rounded to the nearest
+	// 100 ms on some systems, and that behavior is undefined if calls to Read
+	// supply a buffer whose length is less than the minimum read size.
+	//
+	// Behaviors for various settings for these values are described below. For
+	// more information, see the discussion of VMIN and VTIME here:
+	//
+	//     http://www.unixwiz.net/techtips/termios-vmin-vtime.html
+	//
+	// InterCharacterTimeout = 0 and MinimumReadSize = 0 (the default):
+	//     This arrangement is not legal; you must explicitly set at least one of
+	//     these fields to a positive number. (If MinimumReadSize is zero then
+	//     InterCharacterTimeout must be at least 100.)
+	//
+	// InterCharacterTimeout > 0 and MinimumReadSize = 0
+	//     If data is already available on the read queue, it is transferred to
+	//     the caller's buffer and the Read() call returns immediately.
+	//     Otherwise, the call blocks until some data arrives or the
+	//     InterCharacterTimeout milliseconds elapse from the start of the call.
+	//     Note that in this configuration, InterCharacterTimeout must be at
+	//     least 100 ms.
+	//
+	// InterCharacterTimeout > 0 and MinimumReadSize > 0
+	//     Calls to Read() return when at least MinimumReadSize bytes are
+	//     available or when InterCharacterTimeout milliseconds elapse between
+	//     received bytes. The inter-character timer is not started until the
+	//     first byte arrives.
+	//
+	// InterCharacterTimeout = 0 and MinimumReadSize > 0
+	//     Calls to Read() return only when at least MinimumReadSize bytes are
+	//     available. The inter-character timer is not used.
+	//
+	// For windows usage, these options (termios) do not conform well to the
+	//     windows serial port / comms abstractions.  Please see the code in
+	//		 open_windows setCommTimeouts function for full documentation.
+	//   	 Summary:
+	//			Setting MinimumReadSize > 0 will cause the serialPort to block until
+	//			until data is available on the port.
+	//			Setting IntercharacterTimeout > 0 and MinimumReadSize == 0 will cause
+	//			the port to either wait until IntercharacterTimeout wait time is
+	//			exceeded OR there is character data to return from the port.
+	//
+
+	InterCharacterTimeout uint
+	MinimumReadSize       uint
+
+	// Use to enable RS485 mode -- probably only valid on some Linux platforms
+	Rs485Enable bool
+
+	// Set to true for logic level high during send
+	Rs485RtsHighDuringSend bool
+
+	// Set to true for logic level high after send
+	Rs485RtsHighAfterSend bool
+
+	// set to receive data during sending
+	Rs485RxDuringTx bool
+
+	// RTS delay before send
+	Rs485DelayRtsBeforeSend int
+
+	// RTS delay after send
+	Rs485DelayRtsAfterSend int
+}
+
+// Open creates an io.ReadWriteCloser based on the supplied options struct.
+func Open(options OpenOptions) (io.ReadWriteCloser, error) {
+	// Redirect to the OS-specific function.
+	return openInternal(options)
+}
+
+// Rounds a float to the nearest integer.
+func round(f float64) float64 {
+	return math.Floor(f + 0.5)
+}

vendor/github.com/sirupsen/logrus/.gitignore

@@ -0,0 +1 @@
+logrus

vendor/github.com/sirupsen/logrus/.travis.yml

@@ -0,0 +1,15 @@
+language: go
+go:
+  - 1.6.x
+  - 1.7.x
+  - 1.8.x
+  - tip
+env:
+  - GOMAXPROCS=4 GORACE=halt_on_error=1
+install:
+  - go get github.com/stretchr/testify/assert
+  - go get gopkg.in/gemnasium/logrus-airbrake-hook.v2
+  - go get golang.org/x/sys/unix
+  - go get golang.org/x/sys/windows
+script:
+  - go test -race -v ./...

vendor/github.com/sirupsen/logrus/CHANGELOG.md

@@ -0,0 +1,123 @@
+# 1.0.5
+
+* Fix hooks race (#707)
+* Fix panic deadlock (#695)
+
+# 1.0.4
+
+* Fix race when adding hooks (#612)
+* Fix terminal check in AppEngine (#635)
+
+# 1.0.3
+
+* Replace example files with testable examples
+
+# 1.0.2
+
+* bug: quote non-string values in text formatter (#583)
+* Make (*Logger) SetLevel a public method
+
+# 1.0.1
+
+* bug: fix escaping in text formatter (#575)
+
+# 1.0.0
+
+* Officially changed name to lower-case
+* bug: colors on Windows 10 (#541)
+* bug: fix race in accessing level (#512)
+
+# 0.11.5
+
+* feature: add writer and writerlevel to entry (#372)
+
+# 0.11.4
+
+* bug: fix undefined variable on solaris (#493)
+
+# 0.11.3
+
+* formatter: configure quoting of empty values (#484)
+* formatter: configure quoting character (default is `"`) (#484)
+* bug: fix not importing io correctly in non-linux environments (#481)
+
+# 0.11.2
+
+* bug: fix windows terminal detection (#476)
+
+# 0.11.1
+
+* bug: fix tty detection with custom out (#471)
+
+# 0.11.0
+
+* performance: Use bufferpool to allocate (#370)
+* terminal: terminal detection for app-engine (#343)
+* feature: exit handler (#375)
+
+# 0.10.0
+
+* feature: Add a test hook (#180)
+* feature: `ParseLevel` is now case-insensitive (#326)
+* feature: `FieldLogger` interface that generalizes `Logger` and `Entry` (#308)
+* performance: avoid re-allocations on `WithFields` (#335)
+
+# 0.9.0
+
+* logrus/text_formatter: don't emit empty msg
+* logrus/hooks/airbrake: move out of main repository
+* logrus/hooks/sentry: move out of main repository
+* logrus/hooks/papertrail: move out of main repository
+* logrus/hooks/bugsnag: move out of main repository
+* logrus/core: run tests with `-race`
+* logrus/core: detect TTY based on `stderr`
+* logrus/core: support `WithError` on logger
+* logrus/core: Solaris support
+
+# 0.8.7
+
+* logrus/core: fix possible race (#216)
+* logrus/doc: small typo fixes and doc improvements
+
+
+# 0.8.6
+
+* hooks/raven: allow passing an initialized client
+
+# 0.8.5
+
+* logrus/core: revert #208
+
+# 0.8.4
+
+* formatter/text: fix data race (#218)
+
+# 0.8.3
+
+* logrus/core: fix entry log level (#208)
+* logrus/core: improve performance of text formatter by 40%
+* logrus/core: expose `LevelHooks` type
+* logrus/core: add support for DragonflyBSD and NetBSD
+* formatter/text: print structs more verbosely
+
+# 0.8.2
+
+* logrus: fix more Fatal family functions
+
+# 0.8.1
+
+* logrus: fix not exiting on `Fatalf` and `Fatalln`
+
+# 0.8.0
+
+* logrus: defaults to stderr instead of stdout
+* hooks/sentry: add special field for `*http.Request`
+* formatter/text: ignore Windows for colors
+
+# 0.7.3
+
+* formatter/\*: allow configuration of timestamp layout
+
+# 0.7.2
+
+* formatter/text: Add configuration option for time format (#158)

vendor/github.com/sirupsen/logrus/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Simon Eskildsen
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/github.com/sirupsen/logrus/README.md

@@ -0,0 +1,511 @@
+# Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/>&nbsp;[![Build Status](https://travis-ci.org/sirupsen/logrus.svg?branch=master)](https://travis-ci.org/sirupsen/logrus)&nbsp;[![GoDoc](https://godoc.org/github.com/sirupsen/logrus?status.svg)](https://godoc.org/github.com/sirupsen/logrus)
+
+Logrus is a structured logger for Go (golang), completely API compatible with
+the standard library logger.
+
+**Seeing weird case-sensitive problems?** It's in the past been possible to
+import Logrus as both upper- and lower-case. Due to the Go package environment,
+this caused issues in the community and we needed a standard. Some environments
+experienced problems with the upper-case variant, so the lower-case was decided.
+Everything using `logrus` will need to use the lower-case:
+`github.com/sirupsen/logrus`. Any package that isn't, should be changed.
+
+To fix Glide, see [these
+comments](https://github.com/sirupsen/logrus/issues/553#issuecomment-306591437).
+For an in-depth explanation of the casing issue, see [this
+comment](https://github.com/sirupsen/logrus/issues/570#issuecomment-313933276).
+
+**Are you interested in assisting in maintaining Logrus?** Currently I have a
+lot of obligations, and I am unable to provide Logrus with the maintainership it
+needs. If you'd like to help, please reach out to me at `simon at author's
+username dot com`.
+
+Nicely color-coded in development (when a TTY is attached, otherwise just
+plain text):
+
+![Colored](http://i.imgur.com/PY7qMwd.png)
+
+With `log.SetFormatter(&log.JSONFormatter{})`, for easy parsing by logstash
+or Splunk:
+
+```json
+{"animal":"walrus","level":"info","msg":"A group of walrus emerges from the
+ocean","size":10,"time":"2014-03-10 19:57:38.562264131 -0400 EDT"}
+
+{"level":"warning","msg":"The group's number increased tremendously!",
+"number":122,"omg":true,"time":"2014-03-10 19:57:38.562471297 -0400 EDT"}
+
+{"animal":"walrus","level":"info","msg":"A giant walrus appears!",
+"size":10,"time":"2014-03-10 19:57:38.562500591 -0400 EDT"}
+
+{"animal":"walrus","level":"info","msg":"Tremendously sized cow enters the ocean.",
+"size":9,"time":"2014-03-10 19:57:38.562527896 -0400 EDT"}
+
+{"level":"fatal","msg":"The ice breaks!","number":100,"omg":true,
+"time":"2014-03-10 19:57:38.562543128 -0400 EDT"}
+```
+
+With the default `log.SetFormatter(&log.TextFormatter{})` when a TTY is not
+attached, the output is compatible with the
+[logfmt](http://godoc.org/github.com/kr/logfmt) format:
+
+```text
+time="2015-03-26T01:27:38-04:00" level=debug msg="Started observing beach" animal=walrus number=8
+time="2015-03-26T01:27:38-04:00" level=info msg="A group of walrus emerges from the ocean" animal=walrus size=10
+time="2015-03-26T01:27:38-04:00" level=warning msg="The group's number increased tremendously!" number=122 omg=true
+time="2015-03-26T01:27:38-04:00" level=debug msg="Temperature changes" temperature=-4
+time="2015-03-26T01:27:38-04:00" level=panic msg="It's over 9000!" animal=orca size=9009
+time="2015-03-26T01:27:38-04:00" level=fatal msg="The ice breaks!" err=&{0x2082280c0 map[animal:orca size:9009] 2015-03-26 01:27:38.441574009 -0400 EDT panic It's over 9000!} number=100 omg=true
+exit status 1
+```
+
+#### Case-sensitivity
+
+The organization's name was changed to lower-case--and this will not be changed
+back. If you are getting import conflicts due to case sensitivity, please use
+the lower-case import: `github.com/sirupsen/logrus`.
+
+#### Example
+
+The simplest way to use Logrus is simply the package-level exported logger:
+
+```go
+package main
+
+import (
+  log "github.com/sirupsen/logrus"
+)
+
+func main() {
+  log.WithFields(log.Fields{
+    "animal": "walrus",
+  }).Info("A walrus appears")
+}
+```
+
+Note that it's completely api-compatible with the stdlib logger, so you can
+replace your `log` imports everywhere with `log "github.com/sirupsen/logrus"`
+and you'll now have the flexibility of Logrus. You can customize it all you
+want:
+
+```go
+package main
+
+import (
+  "os"
+  log "github.com/sirupsen/logrus"
+)
+
+func init() {
+  // Log as JSON instead of the default ASCII formatter.
+  log.SetFormatter(&log.JSONFormatter{})
+
+  // Output to stdout instead of the default stderr
+  // Can be any io.Writer, see below for File example
+  log.SetOutput(os.Stdout)
+
+  // Only log the warning severity or above.
+  log.SetLevel(log.WarnLevel)
+}
+
+func main() {
+  log.WithFields(log.Fields{
+    "animal": "walrus",
+    "size":   10,
+  }).Info("A group of walrus emerges from the ocean")
+
+  log.WithFields(log.Fields{
+    "omg":    true,
+    "number": 122,
+  }).Warn("The group's number increased tremendously!")
+
+  log.WithFields(log.Fields{
+    "omg":    true,
+    "number": 100,
+  }).Fatal("The ice breaks!")
+
+  // A common pattern is to re-use fields between logging statements by re-using
+  // the logrus.Entry returned from WithFields()
+  contextLogger := log.WithFields(log.Fields{
+    "common": "this is a common field",
+    "other": "I also should be logged always",
+  })
+
+  contextLogger.Info("I'll be logged with common and other field")
+  contextLogger.Info("Me too")
+}
+```
+
+For more advanced usage such as logging to multiple locations from the same
+application, you can also create an instance of the `logrus` Logger:
+
+```go
+package main
+
+import (
+  "os"
+  "github.com/sirupsen/logrus"
+)
+
+// Create a new instance of the logger. You can have any number of instances.
+var log = logrus.New()
+
+func main() {
+  // The API for setting attributes is a little different than the package level
+  // exported logger. See Godoc.
+  log.Out = os.Stdout
+
+  // You could set this to any `io.Writer` such as a file
+  // file, err := os.OpenFile("logrus.log", os.O_CREATE|os.O_WRONLY, 0666)
+  // if err == nil {
+  //  log.Out = file
+  // } else {
+  //  log.Info("Failed to log to file, using default stderr")
+  // }
+
+  log.WithFields(logrus.Fields{
+    "animal": "walrus",
+    "size":   10,
+  }).Info("A group of walrus emerges from the ocean")
+}
+```
+
+#### Fields
+
+Logrus encourages careful, structured logging through logging fields instead of
+long, unparseable error messages. For example, instead of: `log.Fatalf("Failed
+to send event %s to topic %s with key %d")`, you should log the much more
+discoverable:
+
+```go
+log.WithFields(log.Fields{
+  "event": event,
+  "topic": topic,
+  "key": key,
+}).Fatal("Failed to send event")
+```
+
+We've found this API forces you to think about logging in a way that produces
+much more useful logging messages. We've been in countless situations where just
+a single added field to a log statement that was already there would've saved us
+hours. The `WithFields` call is optional.
+
+In general, with Logrus using any of the `printf`-family functions should be
+seen as a hint you should add a field, however, you can still use the
+`printf`-family functions with Logrus.
+
+#### Default Fields
+
+Often it's helpful to have fields _always_ attached to log statements in an
+application or parts of one. For example, you may want to always log the
+`request_id` and `user_ip` in the context of a request. Instead of writing
+`log.WithFields(log.Fields{"request_id": request_id, "user_ip": user_ip})` on
+every line, you can create a `logrus.Entry` to pass around instead:
+
+```go
+requestLogger := log.WithFields(log.Fields{"request_id": request_id, "user_ip": user_ip})
+requestLogger.Info("something happened on that request") # will log request_id and user_ip
+requestLogger.Warn("something not great happened")
+```
+
+#### Hooks
+
+You can add hooks for logging levels. For example to send errors to an exception
+tracking service on `Error`, `Fatal` and `Panic`, info to StatsD or log to
+multiple places simultaneously, e.g. syslog.
+
+Logrus comes with [built-in hooks](hooks/). Add those, or your custom hook, in
+`init`:
+
+```go
+import (
+  log "github.com/sirupsen/logrus"
+  "gopkg.in/gemnasium/logrus-airbrake-hook.v2" // the package is named "airbrake"
+  logrus_syslog "github.com/sirupsen/logrus/hooks/syslog"
+  "log/syslog"
+)
+
+func init() {
+
+  // Use the Airbrake hook to report errors that have Error severity or above to
+  // an exception tracker. You can create custom hooks, see the Hooks section.
+  log.AddHook(airbrake.NewHook(123, "xyz", "production"))
+
+  hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
+  if err != nil {
+    log.Error("Unable to connect to local syslog daemon")
+  } else {
+    log.AddHook(hook)
+  }
+}
+```
+Note: Syslog hook also support connecting to local syslog (Ex. "/dev/log" or "/var/run/syslog" or "/var/run/log"). For the detail, please check the [syslog hook README](hooks/syslog/README.md).
+
+| Hook  | Description |
+| ----- | ----------- |
+| [Airbrake "legacy"](https://github.com/gemnasium/logrus-airbrake-legacy-hook) | Send errors to an exception tracking service compatible with the Airbrake API V2. Uses [`airbrake-go`](https://github.com/tobi/airbrake-go) behind the scenes. |
+| [Airbrake](https://github.com/gemnasium/logrus-airbrake-hook) | Send errors to the Airbrake API V3. Uses the official [`gobrake`](https://github.com/airbrake/gobrake) behind the scenes. |
+| [Amazon Kinesis](https://github.com/evalphobia/logrus_kinesis) | Hook for logging to [Amazon Kinesis](https://aws.amazon.com/kinesis/) |
+| [Amqp-Hook](https://github.com/vladoatanasov/logrus_amqp) | Hook for logging to Amqp broker (Like RabbitMQ) |
+| [Application Insights](https://github.com/jjcollinge/logrus-appinsights) | Hook for logging to [Application Insights](https://azure.microsoft.com/en-us/services/application-insights/)
+| [AzureTableHook](https://github.com/kpfaulkner/azuretablehook/) | Hook for logging to Azure Table Storage|
+| [Bugsnag](https://github.com/Shopify/logrus-bugsnag/blob/master/bugsnag.go) | Send errors to the Bugsnag exception tracking service. |
+| [DeferPanic](https://github.com/deferpanic/dp-logrus) | Hook for logging to DeferPanic |
+| [Discordrus](https://github.com/kz/discordrus) | Hook for logging to [Discord](https://discordapp.com/) |
+| [ElasticSearch](https://github.com/sohlich/elogrus) | Hook for logging to ElasticSearch|
+| [Firehose](https://github.com/beaubrewer/logrus_firehose) | Hook for logging to [Amazon Firehose](https://aws.amazon.com/kinesis/firehose/)
+| [Fluentd](https://github.com/evalphobia/logrus_fluent) | Hook for logging to fluentd |
+| [Go-Slack](https://github.com/multiplay/go-slack) | Hook for logging to [Slack](https://slack.com) |
+| [Graylog](https://github.com/gemnasium/logrus-graylog-hook) | Hook for logging to [Graylog](http://graylog2.org/) |
+| [Hiprus](https://github.com/nubo/hiprus) | Send errors to a channel in hipchat. |
+| [Honeybadger](https://github.com/agonzalezro/logrus_honeybadger) | Hook for sending exceptions to Honeybadger |
+| [InfluxDB](https://github.com/Abramovic/logrus_influxdb) | Hook for logging to influxdb |
+| [Influxus](http://github.com/vlad-doru/influxus) | Hook for concurrently logging to [InfluxDB](http://influxdata.com/) |
+| [Journalhook](https://github.com/wercker/journalhook) | Hook for logging to `systemd-journald` |
+| [KafkaLogrus](https://github.com/tracer0tong/kafkalogrus) | Hook for logging to Kafka |
+| [Kafka REST Proxy](https://github.com/Nordstrom/logrus-kafka-rest-proxy) | Hook for logging to [Kafka REST Proxy](https://docs.confluent.io/current/kafka-rest/docs) |
+| [LFShook](https://github.com/rifflock/lfshook) | Hook for logging to the local filesystem |
+| [Logbeat](https://github.com/macandmia/logbeat) | Hook for logging to [Opbeat](https://opbeat.com/) |
+| [Logentries](https://github.com/jcftang/logentriesrus) | Hook for logging to [Logentries](https://logentries.com/) |
+| [Logentrus](https://github.com/puddingfactory/logentrus) | Hook for logging to [Logentries](https://logentries.com/) |
+| [Logmatic.io](https://github.com/logmatic/logmatic-go) | Hook for logging to [Logmatic.io](http://logmatic.io/) |
+| [Logrusly](https://github.com/sebest/logrusly) | Send logs to [Loggly](https://www.loggly.com/) |
+| [Logstash](https://github.com/bshuster-repo/logrus-logstash-hook) | Hook for logging to [Logstash](https://www.elastic.co/products/logstash) |
+| [Mail](https://github.com/zbindenren/logrus_mail) | Hook for sending exceptions via mail |
+| [Mattermost](https://github.com/shuLhan/mattermost-integration/tree/master/hooks/logrus) | Hook for logging to [Mattermost](https://mattermost.com/) |
+| [Mongodb](https://github.com/weekface/mgorus) | Hook for logging to mongodb |
+| [NATS-Hook](https://github.com/rybit/nats_logrus_hook) | Hook for logging to [NATS](https://nats.io) |
+| [Octokit](https://github.com/dorajistyle/logrus-octokit-hook) | Hook for logging to github via octokit |
+| [Papertrail](https://github.com/polds/logrus-papertrail-hook) | Send errors to the [Papertrail](https://papertrailapp.com) hosted logging service via UDP. |
+| [PostgreSQL](https://github.com/gemnasium/logrus-postgresql-hook) | Send logs to [PostgreSQL](http://postgresql.org) |
+| [Promrus](https://github.com/weaveworks/promrus) | Expose number of log messages as [Prometheus](https://prometheus.io/) metrics |
+| [Pushover](https://github.com/toorop/logrus_pushover) | Send error via [Pushover](https://pushover.net) |
+| [Raygun](https://github.com/squirkle/logrus-raygun-hook) | Hook for logging to [Raygun.io](http://raygun.io/) |
+| [Redis-Hook](https://github.com/rogierlommers/logrus-redis-hook) | Hook for logging to a ELK stack (through Redis) |
+| [Rollrus](https://github.com/heroku/rollrus) | Hook for sending errors to rollbar |
+| [Scribe](https://github.com/sagar8192/logrus-scribe-hook) | Hook for logging to [Scribe](https://github.com/facebookarchive/scribe)|
+| [Sentry](https://github.com/evalphobia/logrus_sentry) | Send errors to the Sentry error logging and aggregation service. |
+| [Slackrus](https://github.com/johntdyer/slackrus) | Hook for Slack chat. |
+| [Stackdriver](https://github.com/knq/sdhook) | Hook for logging to [Google Stackdriver](https://cloud.google.com/logging/) |
+| [Sumorus](https://github.com/doublefree/sumorus) | Hook for logging to [SumoLogic](https://www.sumologic.com/)|
+| [Syslog](https://github.com/sirupsen/logrus/blob/master/hooks/syslog/syslog.go) | Send errors to remote syslog server. Uses standard library `log/syslog` behind the scenes. |
+| [Syslog TLS](https://github.com/shinji62/logrus-syslog-ng) | Send errors to remote syslog server with TLS support. |
+| [Telegram](https://github.com/rossmcdonald/telegram_hook) | Hook for logging errors to [Telegram](https://telegram.org/) |
+| [TraceView](https://github.com/evalphobia/logrus_appneta) | Hook for logging to [AppNeta TraceView](https://www.appneta.com/products/traceview/) |
+| [Typetalk](https://github.com/dragon3/logrus-typetalk-hook) | Hook for logging to [Typetalk](https://www.typetalk.in/) |
+| [logz.io](https://github.com/ripcurld00d/logrus-logzio-hook) | Hook for logging to [logz.io](https://logz.io), a Log as a Service using Logstash |
+| [SQS-Hook](https://github.com/tsarpaul/logrus_sqs) | Hook for logging to [Amazon Simple Queue Service (SQS)](https://aws.amazon.com/sqs/) |
+
+#### Level logging
+
+Logrus has six logging levels: Debug, Info, Warning, Error, Fatal and Panic.
+
+```go
+log.Debug("Useful debugging information.")
+log.Info("Something noteworthy happened!")
+log.Warn("You should probably take a look at this.")
+log.Error("Something failed but I'm not quitting.")
+// Calls os.Exit(1) after logging
+log.Fatal("Bye.")
+// Calls panic() after logging
+log.Panic("I'm bailing.")
+```
+
+You can set the logging level on a `Logger`, then it will only log entries with
+that severity or anything above it:
+
+```go
+// Will log anything that is info or above (warn, error, fatal, panic). Default.
+log.SetLevel(log.InfoLevel)
+```
+
+It may be useful to set `log.Level = logrus.DebugLevel` in a debug or verbose
+environment if your application has that.
+
+#### Entries
+
+Besides the fields added with `WithField` or `WithFields` some fields are
+automatically added to all logging events:
+
+1. `time`. The timestamp when the entry was created.
+2. `msg`. The logging message passed to `{Info,Warn,Error,Fatal,Panic}` after
+   the `AddFields` call. E.g. `Failed to send event.`
+3. `level`. The logging level. E.g. `info`.
+
+#### Environments
+
+Logrus has no notion of environment.
+
+If you wish for hooks and formatters to only be used in specific environments,
+you should handle that yourself. For example, if your application has a global
+variable `Environment`, which is a string representation of the environment you
+could do:
+
+```go
+import (
+  log "github.com/sirupsen/logrus"
+)
+
+init() {
+  // do something here to set environment depending on an environment variable
+  // or command-line flag
+  if Environment == "production" {
+    log.SetFormatter(&log.JSONFormatter{})
+  } else {
+    // The TextFormatter is default, you don't actually have to do this.
+    log.SetFormatter(&log.TextFormatter{})
+  }
+}
+```
+
+This configuration is how `logrus` was intended to be used, but JSON in
+production is mostly only useful if you do log aggregation with tools like
+Splunk or Logstash.
+
+#### Formatters
+
+The built-in logging formatters are:
+
+* `logrus.TextFormatter`. Logs the event in colors if stdout is a tty, otherwise
+  without colors.
+  * *Note:* to force colored output when there is no TTY, set the `ForceColors`
+    field to `true`.  To force no colored output even if there is a TTY  set the
+    `DisableColors` field to `true`. For Windows, see
+    [github.com/mattn/go-colorable](https://github.com/mattn/go-colorable).
+  * All options are listed in the [generated docs](https://godoc.org/github.com/sirupsen/logrus#TextFormatter).
+* `logrus.JSONFormatter`. Logs fields as JSON.
+  * All options are listed in the [generated docs](https://godoc.org/github.com/sirupsen/logrus#JSONFormatter).
+
+Third party logging formatters:
+
+* [`FluentdFormatter`](https://github.com/joonix/log). Formats entries that can be parsed by Kubernetes and Google Container Engine.
+* [`logstash`](https://github.com/bshuster-repo/logrus-logstash-hook). Logs fields as [Logstash](http://logstash.net) Events.
+* [`prefixed`](https://github.com/x-cray/logrus-prefixed-formatter). Displays log entry source along with alternative layout.
+* [`zalgo`](https://github.com/aybabtme/logzalgo). Invoking the P͉̫o̳̼̊w̖͈̰͎e̬͔̭͂r͚̼̹̲ ̫͓͉̳͈ō̠͕͖̚f̝͍̠ ͕̲̞͖͑Z̖̫̤̫ͪa͉̬͈̗l͖͎g̳̥o̰̥̅!̣͔̲̻͊̄ ̙̘̦̹̦.
+
+You can define your formatter by implementing the `Formatter` interface,
+requiring a `Format` method. `Format` takes an `*Entry`. `entry.Data` is a
+`Fields` type (`map[string]interface{}`) with all your fields as well as the
+default ones (see Entries section above):
+
+```go
+type MyJSONFormatter struct {
+}
+
+log.SetFormatter(new(MyJSONFormatter))
+
+func (f *MyJSONFormatter) Format(entry *Entry) ([]byte, error) {
+  // Note this doesn't include Time, Level and Message which are available on
+  // the Entry. Consult `godoc` on information about those fields or read the
+  // source of the official loggers.
+  serialized, err := json.Marshal(entry.Data)
+    if err != nil {
+      return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
+    }
+  return append(serialized, '\n'), nil
+}
+```
+
+#### Logger as an `io.Writer`
+
+Logrus can be transformed into an `io.Writer`. That writer is the end of an `io.Pipe` and it is your responsibility to close it.
+
+```go
+w := logger.Writer()
+defer w.Close()
+
+srv := http.Server{
+    // create a stdlib log.Logger that writes to
+    // logrus.Logger.
+    ErrorLog: log.New(w, "", 0),
+}
+```
+
+Each line written to that writer will be printed the usual way, using formatters
+and hooks. The level for those entries is `info`.
+
+This means that we can override the standard library logger easily:
+
+```go
+logger := logrus.New()
+logger.Formatter = &logrus.JSONFormatter{}
+
+// Use logrus for standard log output
+// Note that `log` here references stdlib's log
+// Not logrus imported under the name `log`.
+log.SetOutput(logger.Writer())
+```
+
+#### Rotation
+
+Log rotation is not provided with Logrus. Log rotation should be done by an
+external program (like `logrotate(8)`) that can compress and delete old log
+entries. It should not be a feature of the application-level logger.
+
+#### Tools
+
+| Tool | Description |
+| ---- | ----------- |
+|[Logrus Mate](https://github.com/gogap/logrus_mate)|Logrus mate is a tool for Logrus to manage loggers, you can initial logger's level, hook and formatter by config file, the logger will generated with different config at different environment.|
+|[Logrus Viper Helper](https://github.com/heirko/go-contrib/tree/master/logrusHelper)|An Helper around Logrus to wrap with spf13/Viper to load configuration with fangs! And to simplify Logrus configuration use some behavior of [Logrus Mate](https://github.com/gogap/logrus_mate). [sample](https://github.com/heirko/iris-contrib/blob/master/middleware/logrus-logger/example) |
+
+#### Testing
+
+Logrus has a built in facility for asserting the presence of log messages. This is implemented through the `test` hook and provides:
+
+* decorators for existing logger (`test.NewLocal` and `test.NewGlobal`) which basically just add the `test` hook
+* a test logger (`test.NewNullLogger`) that just records log messages (and does not output any):
+
+```go
+import(
+  "github.com/sirupsen/logrus"
+  "github.com/sirupsen/logrus/hooks/test"
+  "github.com/stretchr/testify/assert"
+  "testing"
+)
+
+func TestSomething(t*testing.T){
+  logger, hook := test.NewNullLogger()
+  logger.Error("Helloerror")
+
+  assert.Equal(t, 1, len(hook.Entries))
+  assert.Equal(t, logrus.ErrorLevel, hook.LastEntry().Level)
+  assert.Equal(t, "Helloerror", hook.LastEntry().Message)
+
+  hook.Reset()
+  assert.Nil(t, hook.LastEntry())
+}
+```
+
+#### Fatal handlers
+
+Logrus can register one or more functions that will be called when any `fatal`
+level message is logged. The registered handlers will be executed before
+logrus performs a `os.Exit(1)`. This behavior may be helpful if callers need
+to gracefully shutdown. Unlike a `panic("Something went wrong...")` call which can be intercepted with a deferred `recover` a call to `os.Exit(1)` can not be intercepted.
+
+```
+...
+handler := func() {
+  // gracefully shutdown something...
+}
+logrus.RegisterExitHandler(handler)
+...
+```
+
+#### Thread safety
+
+By default Logger is protected by mutex for concurrent writes, this mutex is invoked when calling hooks and writing logs.
+If you are sure such locking is not needed, you can call logger.SetNoLock() to disable the locking.
+
+Situation when locking is not needed includes:
+
+* You have no hooks registered, or hooks calling is already thread-safe.
+
+* Writing to logger.Out is already thread-safe, for example:
+
+  1) logger.Out is protected by locks.
+
+  2) logger.Out is a os.File handler opened with `O_APPEND` flag, and every write is smaller than 4k. (This allow multi-thread/multi-process writing)
+
+     (Refer to http://www.notthewizard.com/2014/06/17/are-files-appends-really-atomic/)

vendor/github.com/sirupsen/logrus/alt_exit.go

@@ -0,0 +1,64 @@
+package logrus
+
+// The following code was sourced and modified from the
+// https://github.com/tebeka/atexit package governed by the following license:
+//
+// Copyright (c) 2012 Miki Tebeka <miki.tebeka@gmail.com>.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import (
+	"fmt"
+	"os"
+)
+
+var handlers = []func(){}
+
+func runHandler(handler func()) {
+	defer func() {
+		if err := recover(); err != nil {
+			fmt.Fprintln(os.Stderr, "Error: Logrus exit handler error:", err)
+		}
+	}()
+
+	handler()
+}
+
+func runHandlers() {
+	for _, handler := range handlers {
+		runHandler(handler)
+	}
+}
+
+// Exit runs all the Logrus atexit handlers and then terminates the program using os.Exit(code)
+func Exit(code int) {
+	runHandlers()
+	os.Exit(code)
+}
+
+// RegisterExitHandler adds a Logrus Exit handler, call logrus.Exit to invoke
+// all handlers. The handlers will also be invoked when any Fatal log entry is
+// made.
+//
+// This method is useful when a caller wishes to use logrus to log a fatal
+// message but also needs to gracefully shutdown. An example usecase could be
+// closing database connections, or sending a alert that the application is
+// closing.
+func RegisterExitHandler(handler func()) {
+	handlers = append(handlers, handler)
+}

vendor/github.com/sirupsen/logrus/appveyor.yml

@@ -0,0 +1,14 @@
+version: "{build}"
+platform: x64
+clone_folder: c:\gopath\src\github.com\sirupsen\logrus
+environment:  
+  GOPATH: c:\gopath
+branches:  
+  only:
+    - master
+install:  
+  - set PATH=%GOPATH%\bin;c:\go\bin;%PATH%
+  - go version
+build_script:  
+  - go get -t
+  - go test

vendor/github.com/sirupsen/logrus/doc.go

@@ -0,0 +1,26 @@
+/*
+Package logrus is a structured logger for Go, completely API compatible with the standard library logger.
+
+
+The simplest way to use Logrus is simply the package-level exported logger:
+
+  package main
+
+  import (
+    log "github.com/sirupsen/logrus"
+  )
+
+  func main() {
+    log.WithFields(log.Fields{
+      "animal": "walrus",
+      "number": 1,
+      "size":   10,
+    }).Info("A walrus appears")
+  }
+
+Output:
+  time="2015-09-07T08:48:33Z" level=info msg="A walrus appears" animal=walrus number=1 size=10
+
+For a full guide visit https://github.com/sirupsen/logrus
+*/
+package logrus

vendor/github.com/sirupsen/logrus/entry.go

@@ -0,0 +1,288 @@
+package logrus
+
+import (
+	"bytes"
+	"fmt"
+	"os"
+	"sync"
+	"time"
+)
+
+var bufferPool *sync.Pool
+
+func init() {
+	bufferPool = &sync.Pool{
+		New: func() interface{} {
+			return new(bytes.Buffer)
+		},
+	}
+}
+
+// Defines the key when adding errors using WithError.
+var ErrorKey = "error"
+
+// An entry is the final or intermediate Logrus logging entry. It contains all
+// the fields passed with WithField{,s}. It's finally logged when Debug, Info,
+// Warn, Error, Fatal or Panic is called on it. These objects can be reused and
+// passed around as much as you wish to avoid field duplication.
+type Entry struct {
+	Logger *Logger
+
+	// Contains all the fields set by the user.
+	Data Fields
+
+	// Time at which the log entry was created
+	Time time.Time
+
+	// Level the log entry was logged at: Debug, Info, Warn, Error, Fatal or Panic
+	// This field will be set on entry firing and the value will be equal to the one in Logger struct field.
+	Level Level
+
+	// Message passed to Debug, Info, Warn, Error, Fatal or Panic
+	Message string
+
+	// When formatter is called in entry.log(), an Buffer may be set to entry
+	Buffer *bytes.Buffer
+}
+
+func NewEntry(logger *Logger) *Entry {
+	return &Entry{
+		Logger: logger,
+		// Default is three fields, give a little extra room
+		Data: make(Fields, 5),
+	}
+}
+
+// Returns the string representation from the reader and ultimately the
+// formatter.
+func (entry *Entry) String() (string, error) {
+	serialized, err := entry.Logger.Formatter.Format(entry)
+	if err != nil {
+		return "", err
+	}
+	str := string(serialized)
+	return str, nil
+}
+
+// Add an error as single field (using the key defined in ErrorKey) to the Entry.
+func (entry *Entry) WithError(err error) *Entry {
+	return entry.WithField(ErrorKey, err)
+}
+
+// Add a single field to the Entry.
+func (entry *Entry) WithField(key string, value interface{}) *Entry {
+	return entry.WithFields(Fields{key: value})
+}
+
+// Add a map of fields to the Entry.
+func (entry *Entry) WithFields(fields Fields) *Entry {
+	data := make(Fields, len(entry.Data)+len(fields))
+	for k, v := range entry.Data {
+		data[k] = v
+	}
+	for k, v := range fields {
+		data[k] = v
+	}
+	return &Entry{Logger: entry.Logger, Data: data}
+}
+
+// This function is not declared with a pointer value because otherwise
+// race conditions will occur when using multiple goroutines
+func (entry Entry) log(level Level, msg string) {
+	var buffer *bytes.Buffer
+	entry.Time = time.Now()
+	entry.Level = level
+	entry.Message = msg
+
+	entry.fireHooks()
+
+	buffer = bufferPool.Get().(*bytes.Buffer)
+	buffer.Reset()
+	defer bufferPool.Put(buffer)
+	entry.Buffer = buffer
+
+	entry.write()
+
+	entry.Buffer = nil
+
+	// To avoid Entry#log() returning a value that only would make sense for
+	// panic() to use in Entry#Panic(), we avoid the allocation by checking
+	// directly here.
+	if level <= PanicLevel {
+		panic(&entry)
+	}
+}
+
+// This function is not declared with a pointer value because otherwise
+// race conditions will occur when using multiple goroutines
+func (entry Entry) fireHooks() {
+	entry.Logger.mu.Lock()
+	defer entry.Logger.mu.Unlock()
+	err := entry.Logger.Hooks.Fire(entry.Level, &entry)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err)
+	}
+}
+
+func (entry *Entry) write() {
+	serialized, err := entry.Logger.Formatter.Format(entry)
+	entry.Logger.mu.Lock()
+	defer entry.Logger.mu.Unlock()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err)
+	} else {
+		_, err = entry.Logger.Out.Write(serialized)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
+		}
+	}
+}
+
+func (entry *Entry) Debug(args ...interface{}) {
+	if entry.Logger.level() >= DebugLevel {
+		entry.log(DebugLevel, fmt.Sprint(args...))
+	}
+}
+
+func (entry *Entry) Print(args ...interface{}) {
+	entry.Info(args...)
+}
+
+func (entry *Entry) Info(args ...interface{}) {
+	if entry.Logger.level() >= InfoLevel {
+		entry.log(InfoLevel, fmt.Sprint(args...))
+	}
+}
+
+func (entry *Entry) Warn(args ...interface{}) {
+	if entry.Logger.level() >= WarnLevel {
+		entry.log(WarnLevel, fmt.Sprint(args...))
+	}
+}
+
+func (entry *Entry) Warning(args ...interface{}) {
+	entry.Warn(args...)
+}
+
+func (entry *Entry) Error(args ...interface{}) {
+	if entry.Logger.level() >= ErrorLevel {
+		entry.log(ErrorLevel, fmt.Sprint(args...))
+	}
+}
+
+func (entry *Entry) Fatal(args ...interface{}) {
+	if entry.Logger.level() >= FatalLevel {
+		entry.log(FatalLevel, fmt.Sprint(args...))
+	}
+	Exit(1)
+}
+
+func (entry *Entry) Panic(args ...interface{}) {
+	if entry.Logger.level() >= PanicLevel {
+		entry.log(PanicLevel, fmt.Sprint(args...))
+	}
+	panic(fmt.Sprint(args...))
+}
+
+// Entry Printf family functions
+
+func (entry *Entry) Debugf(format string, args ...interface{}) {
+	if entry.Logger.level() >= DebugLevel {
+		entry.Debug(fmt.Sprintf(format, args...))
+	}
+}
+
+func (entry *Entry) Infof(format string, args ...interface{}) {
+	if entry.Logger.level() >= InfoLevel {
+		entry.Info(fmt.Sprintf(format, args...))
+	}
+}
+
+func (entry *Entry) Printf(format string, args ...interface{}) {
+	entry.Infof(format, args...)
+}
+
+func (entry *Entry) Warnf(format string, args ...interface{}) {
+	if entry.Logger.level() >= WarnLevel {
+		entry.Warn(fmt.Sprintf(format, args...))
+	}
+}
+
+func (entry *Entry) Warningf(format string, args ...interface{}) {
+	entry.Warnf(format, args...)
+}
+
+func (entry *Entry) Errorf(format string, args ...interface{}) {
+	if entry.Logger.level() >= ErrorLevel {
+		entry.Error(fmt.Sprintf(format, args...))
+	}
+}
+
+func (entry *Entry) Fatalf(format string, args ...interface{}) {
+	if entry.Logger.level() >= FatalLevel {
+		entry.Fatal(fmt.Sprintf(format, args...))
+	}
+	Exit(1)
+}
+
+func (entry *Entry) Panicf(format string, args ...interface{}) {
+	if entry.Logger.level() >= PanicLevel {
+		entry.Panic(fmt.Sprintf(format, args...))
+	}
+}
+
+// Entry Println family functions
+
+func (entry *Entry) Debugln(args ...interface{}) {
+	if entry.Logger.level() >= DebugLevel {
+		entry.Debug(entry.sprintlnn(args...))
+	}
+}
+
+func (entry *Entry) Infoln(args ...interface{}) {
+	if entry.Logger.level() >= InfoLevel {
+		entry.Info(entry.sprintlnn(args...))
+	}
+}
+
+func (entry *Entry) Println(args ...interface{}) {
+	entry.Infoln(args...)
+}
+
+func (entry *Entry) Warnln(args ...interface{}) {
+	if entry.Logger.level() >= WarnLevel {
+		entry.Warn(entry.sprintlnn(args...))
+	}
+}
+
+func (entry *Entry) Warningln(args ...interface{}) {
+	entry.Warnln(args...)
+}
+
+func (entry *Entry) Errorln(args ...interface{}) {
+	if entry.Logger.level() >= ErrorLevel {
+		entry.Error(entry.sprintlnn(args...))
+	}
+}
+
+func (entry *Entry) Fatalln(args ...interface{}) {
+	if entry.Logger.level() >= FatalLevel {
+		entry.Fatal(entry.sprintlnn(args...))
+	}
+	Exit(1)
+}
+
+func (entry *Entry) Panicln(args ...interface{}) {
+	if entry.Logger.level() >= PanicLevel {
+		entry.Panic(entry.sprintlnn(args...))
+	}
+}
+
+// Sprintlnn => Sprint no newline. This is to get the behavior of how
+// fmt.Sprintln where spaces are always added between operands, regardless of
+// their type. Instead of vendoring the Sprintln implementation to spare a
+// string allocation, we do the simplest thing.
+func (entry *Entry) sprintlnn(args ...interface{}) string {
+	msg := fmt.Sprintln(args...)
+	return msg[:len(msg)-1]
+}

vendor/github.com/sirupsen/logrus/exported.go

@@ -0,0 +1,193 @@
+package logrus
+
+import (
+	"io"
+)
+
+var (
+	// std is the name of the standard logger in stdlib `log`
+	std = New()
+)
+
+func StandardLogger() *Logger {
+	return std
+}
+
+// SetOutput sets the standard logger output.
+func SetOutput(out io.Writer) {
+	std.mu.Lock()
+	defer std.mu.Unlock()
+	std.Out = out
+}
+
+// SetFormatter sets the standard logger formatter.
+func SetFormatter(formatter Formatter) {
+	std.mu.Lock()
+	defer std.mu.Unlock()
+	std.Formatter = formatter
+}
+
+// SetLevel sets the standard logger level.
+func SetLevel(level Level) {
+	std.mu.Lock()
+	defer std.mu.Unlock()
+	std.SetLevel(level)
+}
+
+// GetLevel returns the standard logger level.
+func GetLevel() Level {
+	std.mu.Lock()
+	defer std.mu.Unlock()
+	return std.level()
+}
+
+// AddHook adds a hook to the standard logger hooks.
+func AddHook(hook Hook) {
+	std.mu.Lock()
+	defer std.mu.Unlock()
+	std.Hooks.Add(hook)
+}
+
+// WithError creates an entry from the standard logger and adds an error to it, using the value defined in ErrorKey as key.
+func WithError(err error) *Entry {
+	return std.WithField(ErrorKey, err)
+}
+
+// WithField creates an entry from the standard logger and adds a field to
+// it. If you want multiple fields, use `WithFields`.
+//
+// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
+// or Panic on the Entry it returns.
+func WithField(key string, value interface{}) *Entry {
+	return std.WithField(key, value)
+}
+
+// WithFields creates an entry from the standard logger and adds multiple
+// fields to it. This is simply a helper for `WithField`, invoking it
+// once for each field.
+//
+// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
+// or Panic on the Entry it returns.
+func WithFields(fields Fields) *Entry {
+	return std.WithFields(fields)
+}
+
+// Debug logs a message at level Debug on the standard logger.
+func Debug(args ...interface{}) {
+	std.Debug(args...)
+}
+
+// Print logs a message at level Info on the standard logger.
+func Print(args ...interface{}) {
+	std.Print(args...)
+}
+
+// Info logs a message at level Info on the standard logger.
+func Info(args ...interface{}) {
+	std.Info(args...)
+}
+
+// Warn logs a message at level Warn on the standard logger.
+func Warn(args ...interface{}) {
+	std.Warn(args...)
+}
+
+// Warning logs a message at level Warn on the standard logger.
+func Warning(args ...interface{}) {
+	std.Warning(args...)
+}
+
+// Error logs a message at level Error on the standard logger.
+func Error(args ...interface{}) {
+	std.Error(args...)
+}
+
+// Panic logs a message at level Panic on the standard logger.
+func Panic(args ...interface{}) {
+	std.Panic(args...)
+}
+
+// Fatal logs a message at level Fatal on the standard logger.
+func Fatal(args ...interface{}) {
+	std.Fatal(args...)
+}
+
+// Debugf logs a message at level Debug on the standard logger.
+func Debugf(format string, args ...interface{}) {
+	std.Debugf(format, args...)
+}
+
+// Printf logs a message at level Info on the standard logger.
+func Printf(format string, args ...interface{}) {
+	std.Printf(format, args...)
+}
+
+// Infof logs a message at level Info on the standard logger.
+func Infof(format string, args ...interface{}) {
+	std.Infof(format, args...)
+}
+
+// Warnf logs a message at level Warn on the standard logger.
+func Warnf(format string, args ...interface{}) {
+	std.Warnf(format, args...)
+}
+
+// Warningf logs a message at level Warn on the standard logger.
+func Warningf(format string, args ...interface{}) {
+	std.Warningf(format, args...)
+}
+
+// Errorf logs a message at level Error on the standard logger.
+func Errorf(format string, args ...interface{}) {
+	std.Errorf(format, args...)
+}
+
+// Panicf logs a message at level Panic on the standard logger.
+func Panicf(format string, args ...interface{}) {
+	std.Panicf(format, args...)
+}
+
+// Fatalf logs a message at level Fatal on the standard logger.
+func Fatalf(format string, args ...interface{}) {
+	std.Fatalf(format, args...)
+}
+
+// Debugln logs a message at level Debug on the standard logger.
+func Debugln(args ...interface{}) {
+	std.Debugln(args...)
+}
+
+// Println logs a message at level Info on the standard logger.
+func Println(args ...interface{}) {
+	std.Println(args...)
+}
+
+// Infoln logs a message at level Info on the standard logger.
+func Infoln(args ...interface{}) {
+	std.Infoln(args...)
+}
+
+// Warnln logs a message at level Warn on the standard logger.
+func Warnln(args ...interface{}) {
+	std.Warnln(args...)
+}
+
+// Warningln logs a message at level Warn on the standard logger.
+func Warningln(args ...interface{}) {
+	std.Warningln(args...)
+}
+
+// Errorln logs a message at level Error on the standard logger.
+func Errorln(args ...interface{}) {
+	std.Errorln(args...)
+}
+
+// Panicln logs a message at level Panic on the standard logger.
+func Panicln(args ...interface{}) {
+	std.Panicln(args...)
+}
+
+// Fatalln logs a message at level Fatal on the standard logger.
+func Fatalln(args ...interface{}) {
+	std.Fatalln(args...)
+}

vendor/github.com/sirupsen/logrus/formatter.go

@@ -0,0 +1,45 @@
+package logrus
+
+import "time"
+
+const defaultTimestampFormat = time.RFC3339
+
+// The Formatter interface is used to implement a custom Formatter. It takes an
+// `Entry`. It exposes all the fields, including the default ones:
+//
+// * `entry.Data["msg"]`. The message passed from Info, Warn, Error ..
+// * `entry.Data["time"]`. The timestamp.
+// * `entry.Data["level"]. The level the entry was logged at.
+//
+// Any additional fields added with `WithField` or `WithFields` are also in
+// `entry.Data`. Format is expected to return an array of bytes which are then
+// logged to `logger.Out`.
+type Formatter interface {
+	Format(*Entry) ([]byte, error)
+}
+
+// This is to not silently overwrite `time`, `msg` and `level` fields when
+// dumping it. If this code wasn't there doing:
+//
+//  logrus.WithField("level", 1).Info("hello")
+//
+// Would just silently drop the user provided level. Instead with this code
+// it'll logged as:
+//
+//  {"level": "info", "fields.level": 1, "msg": "hello", "time": "..."}
+//
+// It's not exported because it's still using Data in an opinionated way. It's to
+// avoid code duplication between the two default formatters.
+func prefixFieldClashes(data Fields) {
+	if t, ok := data["time"]; ok {
+		data["fields.time"] = t
+	}
+
+	if m, ok := data["msg"]; ok {
+		data["fields.msg"] = m
+	}
+
+	if l, ok := data["level"]; ok {
+		data["fields.level"] = l
+	}
+}

vendor/github.com/sirupsen/logrus/hooks.go

@@ -0,0 +1,34 @@
+package logrus
+
+// A hook to be fired when logging on the logging levels returned from
+// `Levels()` on your implementation of the interface. Note that this is not
+// fired in a goroutine or a channel with workers, you should handle such
+// functionality yourself if your call is non-blocking and you don't wish for
+// the logging calls for levels returned from `Levels()` to block.
+type Hook interface {
+	Levels() []Level
+	Fire(*Entry) error
+}
+
+// Internal type for storing the hooks on a logger instance.
+type LevelHooks map[Level][]Hook
+
+// Add a hook to an instance of logger. This is called with
+// `log.Hooks.Add(new(MyHook))` where `MyHook` implements the `Hook` interface.
+func (hooks LevelHooks) Add(hook Hook) {
+	for _, level := range hook.Levels() {
+		hooks[level] = append(hooks[level], hook)
+	}
+}
+
+// Fire all the hooks for the passed level. Used by `entry.log` to fire
+// appropriate hooks for a log entry.
+func (hooks LevelHooks) Fire(level Level, entry *Entry) error {
+	for _, hook := range hooks[level] {
+		if err := hook.Fire(entry); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

vendor/github.com/sirupsen/logrus/json_formatter.go

@@ -0,0 +1,79 @@
+package logrus
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+type fieldKey string
+
+// FieldMap allows customization of the key names for default fields.
+type FieldMap map[fieldKey]string
+
+// Default key names for the default fields
+const (
+	FieldKeyMsg   = "msg"
+	FieldKeyLevel = "level"
+	FieldKeyTime  = "time"
+)
+
+func (f FieldMap) resolve(key fieldKey) string {
+	if k, ok := f[key]; ok {
+		return k
+	}
+
+	return string(key)
+}
+
+// JSONFormatter formats logs into parsable json
+type JSONFormatter struct {
+	// TimestampFormat sets the format used for marshaling timestamps.
+	TimestampFormat string
+
+	// DisableTimestamp allows disabling automatic timestamps in output
+	DisableTimestamp bool
+
+	// FieldMap allows users to customize the names of keys for default fields.
+	// As an example:
+	// formatter := &JSONFormatter{
+	//   	FieldMap: FieldMap{
+	// 		 FieldKeyTime: "@timestamp",
+	// 		 FieldKeyLevel: "@level",
+	// 		 FieldKeyMsg: "@message",
+	//    },
+	// }
+	FieldMap FieldMap
+}
+
+// Format renders a single log entry
+func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
+	data := make(Fields, len(entry.Data)+3)
+	for k, v := range entry.Data {
+		switch v := v.(type) {
+		case error:
+			// Otherwise errors are ignored by `encoding/json`
+			// https://github.com/sirupsen/logrus/issues/137
+			data[k] = v.Error()
+		default:
+			data[k] = v
+		}
+	}
+	prefixFieldClashes(data)
+
+	timestampFormat := f.TimestampFormat
+	if timestampFormat == "" {
+		timestampFormat = defaultTimestampFormat
+	}
+
+	if !f.DisableTimestamp {
+		data[f.FieldMap.resolve(FieldKeyTime)] = entry.Time.Format(timestampFormat)
+	}
+	data[f.FieldMap.resolve(FieldKeyMsg)] = entry.Message
+	data[f.FieldMap.resolve(FieldKeyLevel)] = entry.Level.String()
+
+	serialized, err := json.Marshal(data)
+	if err != nil {
+		return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
+	}
+	return append(serialized, '\n'), nil
+}

vendor/github.com/sirupsen/logrus/logger.go

@@ -0,0 +1,323 @@
+package logrus
+
+import (
+	"io"
+	"os"
+	"sync"
+	"sync/atomic"
+)
+
+type Logger struct {
+	// The logs are `io.Copy`'d to this in a mutex. It's common to set this to a
+	// file, or leave it default which is `os.Stderr`. You can also set this to
+	// something more adventorous, such as logging to Kafka.
+	Out io.Writer
+	// Hooks for the logger instance. These allow firing events based on logging
+	// levels and log entries. For example, to send errors to an error tracking
+	// service, log to StatsD or dump the core on fatal errors.
+	Hooks LevelHooks
+	// All log entries pass through the formatter before logged to Out. The
+	// included formatters are `TextFormatter` and `JSONFormatter` for which
+	// TextFormatter is the default. In development (when a TTY is attached) it
+	// logs with colors, but to a file it wouldn't. You can easily implement your
+	// own that implements the `Formatter` interface, see the `README` or included
+	// formatters for examples.
+	Formatter Formatter
+	// The logging level the logger should log at. This is typically (and defaults
+	// to) `logrus.Info`, which allows Info(), Warn(), Error() and Fatal() to be
+	// logged.
+	Level Level
+	// Used to sync writing to the log. Locking is enabled by Default
+	mu MutexWrap
+	// Reusable empty entry
+	entryPool sync.Pool
+}
+
+type MutexWrap struct {
+	lock     sync.Mutex
+	disabled bool
+}
+
+func (mw *MutexWrap) Lock() {
+	if !mw.disabled {
+		mw.lock.Lock()
+	}
+}
+
+func (mw *MutexWrap) Unlock() {
+	if !mw.disabled {
+		mw.lock.Unlock()
+	}
+}
+
+func (mw *MutexWrap) Disable() {
+	mw.disabled = true
+}
+
+// Creates a new logger. Configuration should be set by changing `Formatter`,
+// `Out` and `Hooks` directly on the default logger instance. You can also just
+// instantiate your own:
+//
+//    var log = &Logger{
+//      Out: os.Stderr,
+//      Formatter: new(JSONFormatter),
+//      Hooks: make(LevelHooks),
+//      Level: logrus.DebugLevel,
+//    }
+//
+// It's recommended to make this a global instance called `log`.
+func New() *Logger {
+	return &Logger{
+		Out:       os.Stderr,
+		Formatter: new(TextFormatter),
+		Hooks:     make(LevelHooks),
+		Level:     InfoLevel,
+	}
+}
+
+func (logger *Logger) newEntry() *Entry {
+	entry, ok := logger.entryPool.Get().(*Entry)
+	if ok {
+		return entry
+	}
+	return NewEntry(logger)
+}
+
+func (logger *Logger) releaseEntry(entry *Entry) {
+	logger.entryPool.Put(entry)
+}
+
+// Adds a field to the log entry, note that it doesn't log until you call
+// Debug, Print, Info, Warn, Fatal or Panic. It only creates a log entry.
+// If you want multiple fields, use `WithFields`.
+func (logger *Logger) WithField(key string, value interface{}) *Entry {
+	entry := logger.newEntry()
+	defer logger.releaseEntry(entry)
+	return entry.WithField(key, value)
+}
+
+// Adds a struct of fields to the log entry. All it does is call `WithField` for
+// each `Field`.
+func (logger *Logger) WithFields(fields Fields) *Entry {
+	entry := logger.newEntry()
+	defer logger.releaseEntry(entry)
+	return entry.WithFields(fields)
+}
+
+// Add an error as single field to the log entry.  All it does is call
+// `WithError` for the given `error`.
+func (logger *Logger) WithError(err error) *Entry {
+	entry := logger.newEntry()
+	defer logger.releaseEntry(entry)
+	return entry.WithError(err)
+}
+
+func (logger *Logger) Debugf(format string, args ...interface{}) {
+	if logger.level() >= DebugLevel {
+		entry := logger.newEntry()
+		entry.Debugf(format, args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Infof(format string, args ...interface{}) {
+	if logger.level() >= InfoLevel {
+		entry := logger.newEntry()
+		entry.Infof(format, args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Printf(format string, args ...interface{}) {
+	entry := logger.newEntry()
+	entry.Printf(format, args...)
+	logger.releaseEntry(entry)
+}
+
+func (logger *Logger) Warnf(format string, args ...interface{}) {
+	if logger.level() >= WarnLevel {
+		entry := logger.newEntry()
+		entry.Warnf(format, args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Warningf(format string, args ...interface{}) {
+	if logger.level() >= WarnLevel {
+		entry := logger.newEntry()
+		entry.Warnf(format, args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Errorf(format string, args ...interface{}) {
+	if logger.level() >= ErrorLevel {
+		entry := logger.newEntry()
+		entry.Errorf(format, args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Fatalf(format string, args ...interface{}) {
+	if logger.level() >= FatalLevel {
+		entry := logger.newEntry()
+		entry.Fatalf(format, args...)
+		logger.releaseEntry(entry)
+	}
+	Exit(1)
+}
+
+func (logger *Logger) Panicf(format string, args ...interface{}) {
+	if logger.level() >= PanicLevel {
+		entry := logger.newEntry()
+		entry.Panicf(format, args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Debug(args ...interface{}) {
+	if logger.level() >= DebugLevel {
+		entry := logger.newEntry()
+		entry.Debug(args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Info(args ...interface{}) {
+	if logger.level() >= InfoLevel {
+		entry := logger.newEntry()
+		entry.Info(args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Print(args ...interface{}) {
+	entry := logger.newEntry()
+	entry.Info(args...)
+	logger.releaseEntry(entry)
+}
+
+func (logger *Logger) Warn(args ...interface{}) {
+	if logger.level() >= WarnLevel {
+		entry := logger.newEntry()
+		entry.Warn(args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Warning(args ...interface{}) {
+	if logger.level() >= WarnLevel {
+		entry := logger.newEntry()
+		entry.Warn(args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Error(args ...interface{}) {
+	if logger.level() >= ErrorLevel {
+		entry := logger.newEntry()
+		entry.Error(args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Fatal(args ...interface{}) {
+	if logger.level() >= FatalLevel {
+		entry := logger.newEntry()
+		entry.Fatal(args...)
+		logger.releaseEntry(entry)
+	}
+	Exit(1)
+}
+
+func (logger *Logger) Panic(args ...interface{}) {
+	if logger.level() >= PanicLevel {
+		entry := logger.newEntry()
+		entry.Panic(args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Debugln(args ...interface{}) {
+	if logger.level() >= DebugLevel {
+		entry := logger.newEntry()
+		entry.Debugln(args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Infoln(args ...interface{}) {
+	if logger.level() >= InfoLevel {
+		entry := logger.newEntry()
+		entry.Infoln(args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Println(args ...interface{}) {
+	entry := logger.newEntry()
+	entry.Println(args...)
+	logger.releaseEntry(entry)
+}
+
+func (logger *Logger) Warnln(args ...interface{}) {
+	if logger.level() >= WarnLevel {
+		entry := logger.newEntry()
+		entry.Warnln(args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Warningln(args ...interface{}) {
+	if logger.level() >= WarnLevel {
+		entry := logger.newEntry()
+		entry.Warnln(args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Errorln(args ...interface{}) {
+	if logger.level() >= ErrorLevel {
+		entry := logger.newEntry()
+		entry.Errorln(args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+func (logger *Logger) Fatalln(args ...interface{}) {
+	if logger.level() >= FatalLevel {
+		entry := logger.newEntry()
+		entry.Fatalln(args...)
+		logger.releaseEntry(entry)
+	}
+	Exit(1)
+}
+
+func (logger *Logger) Panicln(args ...interface{}) {
+	if logger.level() >= PanicLevel {
+		entry := logger.newEntry()
+		entry.Panicln(args...)
+		logger.releaseEntry(entry)
+	}
+}
+
+//When file is opened with appending mode, it's safe to
+//write concurrently to a file (within 4k message on Linux).
+//In these cases user can choose to disable the lock.
+func (logger *Logger) SetNoLock() {
+	logger.mu.Disable()
+}
+
+func (logger *Logger) level() Level {
+	return Level(atomic.LoadUint32((*uint32)(&logger.Level)))
+}
+
+func (logger *Logger) SetLevel(level Level) {
+	atomic.StoreUint32((*uint32)(&logger.Level), uint32(level))
+}
+
+func (logger *Logger) AddHook(hook Hook) {
+	logger.mu.Lock()
+	defer logger.mu.Unlock()
+	logger.Hooks.Add(hook)
+}

vendor/github.com/sirupsen/logrus/logrus.go

@@ -0,0 +1,143 @@
+package logrus
+
+import (
+	"fmt"
+	"log"
+	"strings"
+)
+
+// Fields type, used to pass to `WithFields`.
+type Fields map[string]interface{}
+
+// Level type
+type Level uint32
+
+// Convert the Level to a string. E.g. PanicLevel becomes "panic".
+func (level Level) String() string {
+	switch level {
+	case DebugLevel:
+		return "debug"
+	case InfoLevel:
+		return "info"
+	case WarnLevel:
+		return "warning"
+	case ErrorLevel:
+		return "error"
+	case FatalLevel:
+		return "fatal"
+	case PanicLevel:
+		return "panic"
+	}
+
+	return "unknown"
+}
+
+// ParseLevel takes a string level and returns the Logrus log level constant.
+func ParseLevel(lvl string) (Level, error) {
+	switch strings.ToLower(lvl) {
+	case "panic":
+		return PanicLevel, nil
+	case "fatal":
+		return FatalLevel, nil
+	case "error":
+		return ErrorLevel, nil
+	case "warn", "warning":
+		return WarnLevel, nil
+	case "info":
+		return InfoLevel, nil
+	case "debug":
+		return DebugLevel, nil
+	}
+
+	var l Level
+	return l, fmt.Errorf("not a valid logrus Level: %q", lvl)
+}
+
+// A constant exposing all logging levels
+var AllLevels = []Level{
+	PanicLevel,
+	FatalLevel,
+	ErrorLevel,
+	WarnLevel,
+	InfoLevel,
+	DebugLevel,
+}
+
+// These are the different logging levels. You can set the logging level to log
+// on your instance of logger, obtained with `logrus.New()`.
+const (
+	// PanicLevel level, highest level of severity. Logs and then calls panic with the
+	// message passed to Debug, Info, ...
+	PanicLevel Level = iota
+	// FatalLevel level. Logs and then calls `os.Exit(1)`. It will exit even if the
+	// logging level is set to Panic.
+	FatalLevel
+	// ErrorLevel level. Logs. Used for errors that should definitely be noted.
+	// Commonly used for hooks to send errors to an error tracking service.
+	ErrorLevel
+	// WarnLevel level. Non-critical entries that deserve eyes.
+	WarnLevel
+	// InfoLevel level. General operational entries about what's going on inside the
+	// application.
+	InfoLevel
+	// DebugLevel level. Usually only enabled when debugging. Very verbose logging.
+	DebugLevel
+)
+
+// Won't compile if StdLogger can't be realized by a log.Logger
+var (
+	_ StdLogger = &log.Logger{}
+	_ StdLogger = &Entry{}
+	_ StdLogger = &Logger{}
+)
+
+// StdLogger is what your logrus-enabled library should take, that way
+// it'll accept a stdlib logger and a logrus logger. There's no standard
+// interface, this is the closest we get, unfortunately.
+type StdLogger interface {
+	Print(...interface{})
+	Printf(string, ...interface{})
+	Println(...interface{})
+
+	Fatal(...interface{})
+	Fatalf(string, ...interface{})
+	Fatalln(...interface{})
+
+	Panic(...interface{})
+	Panicf(string, ...interface{})
+	Panicln(...interface{})
+}
+
+// The FieldLogger interface generalizes the Entry and Logger types
+type FieldLogger interface {
+	WithField(key string, value interface{}) *Entry
+	WithFields(fields Fields) *Entry
+	WithError(err error) *Entry
+
+	Debugf(format string, args ...interface{})
+	Infof(format string, args ...interface{})
+	Printf(format string, args ...interface{})
+	Warnf(format string, args ...interface{})
+	Warningf(format string, args ...interface{})
+	Errorf(format string, args ...interface{})
+	Fatalf(format string, args ...interface{})
+	Panicf(format string, args ...interface{})
+
+	Debug(args ...interface{})
+	Info(args ...interface{})
+	Print(args ...interface{})
+	Warn(args ...interface{})
+	Warning(args ...interface{})
+	Error(args ...interface{})
+	Fatal(args ...interface{})
+	Panic(args ...interface{})
+
+	Debugln(args ...interface{})
+	Infoln(args ...interface{})
+	Println(args ...interface{})
+	Warnln(args ...interface{})
+	Warningln(args ...interface{})
+	Errorln(args ...interface{})
+	Fatalln(args ...interface{})
+	Panicln(args ...interface{})
+}

vendor/github.com/sirupsen/logrus/terminal_bsd.go

@@ -0,0 +1,10 @@
+// +build darwin freebsd openbsd netbsd dragonfly
+// +build !appengine,!gopherjs
+
+package logrus
+
+import "golang.org/x/sys/unix"
+
+const ioctlReadTermios = unix.TIOCGETA
+
+type Termios unix.Termios

vendor/github.com/sirupsen/logrus/terminal_check_appengine.go

@@ -0,0 +1,11 @@
+// +build appengine gopherjs
+
+package logrus
+
+import (
+	"io"
+)
+
+func checkIfTerminal(w io.Writer) bool {
+	return true
+}

vendor/github.com/sirupsen/logrus/terminal_check_notappengine.go

@@ -0,0 +1,19 @@
+// +build !appengine,!gopherjs
+
+package logrus
+
+import (
+	"io"
+	"os"
+
+	"golang.org/x/crypto/ssh/terminal"
+)
+
+func checkIfTerminal(w io.Writer) bool {
+	switch v := w.(type) {
+	case *os.File:
+		return terminal.IsTerminal(int(v.Fd()))
+	default:
+		return false
+	}
+}

vendor/github.com/sirupsen/logrus/terminal_linux.go

@@ -0,0 +1,14 @@
+// Based on ssh/terminal:
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !appengine,!gopherjs
+
+package logrus
+
+import "golang.org/x/sys/unix"
+
+const ioctlReadTermios = unix.TCGETS
+
+type Termios unix.Termios

vendor/github.com/sirupsen/logrus/text_formatter.go

@@ -0,0 +1,178 @@
+package logrus
+
+import (
+	"bytes"
+	"fmt"
+	"sort"
+	"strings"
+	"sync"
+	"time"
+)
+
+const (
+	nocolor = 0
+	red     = 31
+	green   = 32
+	yellow  = 33
+	blue    = 36
+	gray    = 37
+)
+
+var (
+	baseTimestamp time.Time
+)
+
+func init() {
+	baseTimestamp = time.Now()
+}
+
+// TextFormatter formats logs into text
+type TextFormatter struct {
+	// Set to true to bypass checking for a TTY before outputting colors.
+	ForceColors bool
+
+	// Force disabling colors.
+	DisableColors bool
+
+	// Disable timestamp logging. useful when output is redirected to logging
+	// system that already adds timestamps.
+	DisableTimestamp bool
+
+	// Enable logging the full timestamp when a TTY is attached instead of just
+	// the time passed since beginning of execution.
+	FullTimestamp bool
+
+	// TimestampFormat to use for display when a full timestamp is printed
+	TimestampFormat string
+
+	// The fields are sorted by default for a consistent output. For applications
+	// that log extremely frequently and don't use the JSON formatter this may not
+	// be desired.
+	DisableSorting bool
+
+	// QuoteEmptyFields will wrap empty fields in quotes if true
+	QuoteEmptyFields bool
+
+	// Whether the logger's out is to a terminal
+	isTerminal bool
+
+	sync.Once
+}
+
+func (f *TextFormatter) init(entry *Entry) {
+	if entry.Logger != nil {
+		f.isTerminal = checkIfTerminal(entry.Logger.Out)
+	}
+}
+
+// Format renders a single log entry
+func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
+	var b *bytes.Buffer
+	keys := make([]string, 0, len(entry.Data))
+	for k := range entry.Data {
+		keys = append(keys, k)
+	}
+
+	if !f.DisableSorting {
+		sort.Strings(keys)
+	}
+	if entry.Buffer != nil {
+		b = entry.Buffer
+	} else {
+		b = &bytes.Buffer{}
+	}
+
+	prefixFieldClashes(entry.Data)
+
+	f.Do(func() { f.init(entry) })
+
+	isColored := (f.ForceColors || f.isTerminal) && !f.DisableColors
+
+	timestampFormat := f.TimestampFormat
+	if timestampFormat == "" {
+		timestampFormat = defaultTimestampFormat
+	}
+	if isColored {
+		f.printColored(b, entry, keys, timestampFormat)
+	} else {
+		if !f.DisableTimestamp {
+			f.appendKeyValue(b, "time", entry.Time.Format(timestampFormat))
+		}
+		f.appendKeyValue(b, "level", entry.Level.String())
+		if entry.Message != "" {
+			f.appendKeyValue(b, "msg", entry.Message)
+		}
+		for _, key := range keys {
+			f.appendKeyValue(b, key, entry.Data[key])
+		}
+	}
+
+	b.WriteByte('\n')
+	return b.Bytes(), nil
+}
+
+func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []string, timestampFormat string) {
+	var levelColor int
+	switch entry.Level {
+	case DebugLevel:
+		levelColor = gray
+	case WarnLevel:
+		levelColor = yellow
+	case ErrorLevel, FatalLevel, PanicLevel:
+		levelColor = red
+	default:
+		levelColor = blue
+	}
+
+	levelText := strings.ToUpper(entry.Level.String())[0:4]
+
+	if f.DisableTimestamp {
+		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m %-44s ", levelColor, levelText, entry.Message)
+	} else if !f.FullTimestamp {
+		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, int(entry.Time.Sub(baseTimestamp)/time.Second), entry.Message)
+	} else {
+		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s] %-44s ", levelColor, levelText, entry.Time.Format(timestampFormat), entry.Message)
+	}
+	for _, k := range keys {
+		v := entry.Data[k]
+		fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=", levelColor, k)
+		f.appendValue(b, v)
+	}
+}
+
+func (f *TextFormatter) needsQuoting(text string) bool {
+	if f.QuoteEmptyFields && len(text) == 0 {
+		return true
+	}
+	for _, ch := range text {
+		if !((ch >= 'a' && ch <= 'z') ||
+			(ch >= 'A' && ch <= 'Z') ||
+			(ch >= '0' && ch <= '9') ||
+			ch == '-' || ch == '.' || ch == '_' || ch == '/' || ch == '@' || ch == '^' || ch == '+') {
+			return true
+		}
+	}
+	return false
+}
+
+func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key string, value interface{}) {
+	if b.Len() > 0 {
+		b.WriteByte(' ')
+	}
+	b.WriteString(key)
+	b.WriteByte('=')
+	f.appendValue(b, value)
+}
+
+func (f *TextFormatter) appendValue(b *bytes.Buffer, value interface{}) {
+	stringVal, ok := value.(string)
+	if !ok {
+		stringVal = fmt.Sprint(value)
+	}
+
+	if !f.needsQuoting(stringVal) {
+		b.WriteString(stringVal)
+	} else {
+		b.WriteString(fmt.Sprintf("%q", stringVal))
+	}
+}

vendor/github.com/sirupsen/logrus/writer.go

@@ -0,0 +1,62 @@
+package logrus
+
+import (
+	"bufio"
+	"io"
+	"runtime"
+)
+
+func (logger *Logger) Writer() *io.PipeWriter {
+	return logger.WriterLevel(InfoLevel)
+}
+
+func (logger *Logger) WriterLevel(level Level) *io.PipeWriter {
+	return NewEntry(logger).WriterLevel(level)
+}
+
+func (entry *Entry) Writer() *io.PipeWriter {
+	return entry.WriterLevel(InfoLevel)
+}
+
+func (entry *Entry) WriterLevel(level Level) *io.PipeWriter {
+	reader, writer := io.Pipe()
+
+	var printFunc func(args ...interface{})
+
+	switch level {
+	case DebugLevel:
+		printFunc = entry.Debug
+	case InfoLevel:
+		printFunc = entry.Info
+	case WarnLevel:
+		printFunc = entry.Warn
+	case ErrorLevel:
+		printFunc = entry.Error
+	case FatalLevel:
+		printFunc = entry.Fatal
+	case PanicLevel:
+		printFunc = entry.Panic
+	default:
+		printFunc = entry.Print
+	}
+
+	go entry.writerScanner(reader, printFunc)
+	runtime.SetFinalizer(writer, writerFinalizer)
+
+	return writer
+}
+
+func (entry *Entry) writerScanner(reader *io.PipeReader, printFunc func(args ...interface{})) {
+	scanner := bufio.NewScanner(reader)
+	for scanner.Scan() {
+		printFunc(scanner.Text())
+	}
+	if err := scanner.Err(); err != nil {
+		entry.Errorf("Error while reading from Writer: %s", err)
+	}
+	reader.Close()
+}
+
+func writerFinalizer(writer *io.PipeWriter) {
+	writer.Close()
+}

vendor/github.com/spf13/pflag/.gitignore

@@ -0,0 +1,2 @@
+.idea/*
+

vendor/github.com/spf13/pflag/.travis.yml

@@ -0,0 +1,21 @@
+sudo: false
+
+language: go
+
+go:
+  - 1.7.3
+  - 1.8.1
+  - tip
+
+matrix:
+  allow_failures:
+    - go: tip
+
+install:
+  - go get github.com/golang/lint/golint
+  - export PATH=$GOPATH/bin:$PATH
+  - go install ./...
+
+script:
+  - verify/all.sh -v
+  - go test ./...

vendor/github.com/spf13/pflag/LICENSE

@@ -0,0 +1,28 @@
+Copyright (c) 2012 Alex Ogier. All rights reserved.
+Copyright (c) 2012 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/spf13/pflag/README.md

@@ -0,0 +1,296 @@
+[![Build Status](https://travis-ci.org/spf13/pflag.svg?branch=master)](https://travis-ci.org/spf13/pflag)
+[![Go Report Card](https://goreportcard.com/badge/github.com/spf13/pflag)](https://goreportcard.com/report/github.com/spf13/pflag)
+[![GoDoc](https://godoc.org/github.com/spf13/pflag?status.svg)](https://godoc.org/github.com/spf13/pflag)
+
+## Description
+
+pflag is a drop-in replacement for Go's flag package, implementing
+POSIX/GNU-style --flags.
+
+pflag is compatible with the [GNU extensions to the POSIX recommendations
+for command-line options][1]. For a more precise description, see the
+"Command-line flag syntax" section below.
+
+[1]: http://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html
+
+pflag is available under the same style of BSD license as the Go language,
+which can be found in the LICENSE file.
+
+## Installation
+
+pflag is available using the standard `go get` command.
+
+Install by running:
+
+    go get github.com/spf13/pflag
+
+Run tests by running:
+
+    go test github.com/spf13/pflag
+
+## Usage
+
+pflag is a drop-in replacement of Go's native flag package. If you import
+pflag under the name "flag" then all code should continue to function
+with no changes.
+
+``` go
+import flag "github.com/spf13/pflag"
+```
+
+There is one exception to this: if you directly instantiate the Flag struct
+there is one more field "Shorthand" that you will need to set.
+Most code never instantiates this struct directly, and instead uses
+functions such as String(), BoolVar(), and Var(), and is therefore
+unaffected.
+
+Define flags using flag.String(), Bool(), Int(), etc.
+
+This declares an integer flag, -flagname, stored in the pointer ip, with type *int.
+
+``` go
+var ip *int = flag.Int("flagname", 1234, "help message for flagname")
+```
+
+If you like, you can bind the flag to a variable using the Var() functions.
+
+``` go
+var flagvar int
+func init() {
+    flag.IntVar(&flagvar, "flagname", 1234, "help message for flagname")
+}
+```
+
+Or you can create custom flags that satisfy the Value interface (with
+pointer receivers) and couple them to flag parsing by
+
+``` go
+flag.Var(&flagVal, "name", "help message for flagname")
+```
+
+For such flags, the default value is just the initial value of the variable.
+
+After all flags are defined, call
+
+``` go
+flag.Parse()
+```
+
+to parse the command line into the defined flags.
+
+Flags may then be used directly. If you're using the flags themselves,
+they are all pointers; if you bind to variables, they're values.
+
+``` go
+fmt.Println("ip has value ", *ip)
+fmt.Println("flagvar has value ", flagvar)
+```
+
+There are helpers function to get values later if you have the FlagSet but
+it was difficult to keep up with all of the flag pointers in your code.
+If you have a pflag.FlagSet with a flag called 'flagname' of type int you
+can use GetInt() to get the int value. But notice that 'flagname' must exist
+and it must be an int. GetString("flagname") will fail.
+
+``` go
+i, err := flagset.GetInt("flagname")
+```
+
+After parsing, the arguments after the flag are available as the
+slice flag.Args() or individually as flag.Arg(i).
+The arguments are indexed from 0 through flag.NArg()-1.
+
+The pflag package also defines some new functions that are not in flag,
+that give one-letter shorthands for flags. You can use these by appending
+'P' to the name of any function that defines a flag.
+
+``` go
+var ip = flag.IntP("flagname", "f", 1234, "help message")
+var flagvar bool
+func init() {
+	flag.BoolVarP(&flagvar, "boolname", "b", true, "help message")
+}
+flag.VarP(&flagVal, "varname", "v", "help message")
+```
+
+Shorthand letters can be used with single dashes on the command line.
+Boolean shorthand flags can be combined with other shorthand flags.
+
+The default set of command-line flags is controlled by
+top-level functions.  The FlagSet type allows one to define
+independent sets of flags, such as to implement subcommands
+in a command-line interface. The methods of FlagSet are
+analogous to the top-level functions for the command-line
+flag set.
+
+## Setting no option default values for flags
+
+After you create a flag it is possible to set the pflag.NoOptDefVal for
+the given flag. Doing this changes the meaning of the flag slightly. If
+a flag has a NoOptDefVal and the flag is set on the command line without
+an option the flag will be set to the NoOptDefVal. For example given:
+
+``` go
+var ip = flag.IntP("flagname", "f", 1234, "help message")
+flag.Lookup("flagname").NoOptDefVal = "4321"
+```
+
+Would result in something like
+
+| Parsed Arguments | Resulting Value |
+| -------------    | -------------   |
+| --flagname=1357  | ip=1357         |
+| --flagname       | ip=4321         |
+| [nothing]        | ip=1234         |
+
+## Command line flag syntax
+
+```
+--flag    // boolean flags, or flags with no option default values
+--flag x  // only on flags without a default value
+--flag=x
+```
+
+Unlike the flag package, a single dash before an option means something
+different than a double dash. Single dashes signify a series of shorthand
+letters for flags. All but the last shorthand letter must be boolean flags
+or a flag with a default value
+
+```
+// boolean or flags where the 'no option default value' is set
+-f
+-f=true
+-abc
+but
+-b true is INVALID
+
+// non-boolean and flags without a 'no option default value'
+-n 1234
+-n=1234
+-n1234
+
+// mixed
+-abcs "hello"
+-absd="hello"
+-abcs1234
+```
+
+Flag parsing stops after the terminator "--". Unlike the flag package,
+flags can be interspersed with arguments anywhere on the command line
+before this terminator.
+
+Integer flags accept 1234, 0664, 0x1234 and may be negative.
+Boolean flags (in their long form) accept 1, 0, t, f, true, false,
+TRUE, FALSE, True, False.
+Duration flags accept any input valid for time.ParseDuration.
+
+## Mutating or "Normalizing" Flag names
+
+It is possible to set a custom flag name 'normalization function.' It allows flag names to be mutated both when created in the code and when used on the command line to some 'normalized' form. The 'normalized' form is used for comparison. Two examples of using the custom normalization func follow.
+
+**Example #1**: You want -, _, and . in flags to compare the same. aka --my-flag == --my_flag == --my.flag
+
+``` go
+func wordSepNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
+	from := []string{"-", "_"}
+	to := "."
+	for _, sep := range from {
+		name = strings.Replace(name, sep, to, -1)
+	}
+	return pflag.NormalizedName(name)
+}
+
+myFlagSet.SetNormalizeFunc(wordSepNormalizeFunc)
+```
+
+**Example #2**: You want to alias two flags. aka --old-flag-name == --new-flag-name
+
+``` go
+func aliasNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
+	switch name {
+	case "old-flag-name":
+		name = "new-flag-name"
+		break
+	}
+	return pflag.NormalizedName(name)
+}
+
+myFlagSet.SetNormalizeFunc(aliasNormalizeFunc)
+```
+
+## Deprecating a flag or its shorthand
+It is possible to deprecate a flag, or just its shorthand. Deprecating a flag/shorthand hides it from help text and prints a usage message when the deprecated flag/shorthand is used.
+
+**Example #1**: You want to deprecate a flag named "badflag" as well as inform the users what flag they should use instead.
+```go
+// deprecate a flag by specifying its name and a usage message
+flags.MarkDeprecated("badflag", "please use --good-flag instead")
+```
+This hides "badflag" from help text, and prints `Flag --badflag has been deprecated, please use --good-flag instead` when "badflag" is used.
+
+**Example #2**: You want to keep a flag name "noshorthandflag" but deprecate its shortname "n".
+```go
+// deprecate a flag shorthand by specifying its flag name and a usage message
+flags.MarkShorthandDeprecated("noshorthandflag", "please use --noshorthandflag only")
+```
+This hides the shortname "n" from help text, and prints `Flag shorthand -n has been deprecated, please use --noshorthandflag only` when the shorthand "n" is used.
+
+Note that usage message is essential here, and it should not be empty.
+
+## Hidden flags
+It is possible to mark a flag as hidden, meaning it will still function as normal, however will not show up in usage/help text.
+
+**Example**: You have a flag named "secretFlag" that you need for internal use only and don't want it showing up in help text, or for its usage text to be available.
+```go
+// hide a flag by specifying its name
+flags.MarkHidden("secretFlag")
+```
+
+## Disable sorting of flags
+`pflag` allows you to disable sorting of flags for help and usage message.
+
+**Example**:
+```go
+flags.BoolP("verbose", "v", false, "verbose output")
+flags.String("coolflag", "yeaah", "it's really cool flag")
+flags.Int("usefulflag", 777, "sometimes it's very useful")
+flags.SortFlags = false
+flags.PrintDefaults()
+```
+**Output**:
+```
+  -v, --verbose           verbose output
+      --coolflag string   it's really cool flag (default "yeaah")
+      --usefulflag int    sometimes it's very useful (default 777)
+```
+
+
+## Supporting Go flags when using pflag
+In order to support flags defined using Go's `flag` package, they must be added to the `pflag` flagset. This is usually necessary
+to support flags defined by third-party dependencies (e.g. `golang/glog`).
+
+**Example**: You want to add the Go flags to the `CommandLine` flagset
+```go
+import (
+	goflag "flag"
+	flag "github.com/spf13/pflag"
+)
+
+var ip *int = flag.Int("flagname", 1234, "help message for flagname")
+
+func main() {
+	flag.CommandLine.AddGoFlagSet(goflag.CommandLine)
+	flag.Parse()
+}
+```
+
+## More info
+
+You can see the full reference documentation of the pflag package
+[at godoc.org][3], or through go's standard documentation system by
+running `godoc -http=:6060` and browsing to
+[http://localhost:6060/pkg/github.com/spf13/pflag][2] after
+installation.
+
+[2]: http://localhost:6060/pkg/github.com/spf13/pflag
+[3]: http://godoc.org/github.com/spf13/pflag

vendor/github.com/spf13/pflag/bool.go

@@ -0,0 +1,94 @@
+package pflag
+
+import "strconv"
+
+// optional interface to indicate boolean flags that can be
+// supplied without "=value" text
+type boolFlag interface {
+	Value
+	IsBoolFlag() bool
+}
+
+// -- bool Value
+type boolValue bool
+
+func newBoolValue(val bool, p *bool) *boolValue {
+	*p = val
+	return (*boolValue)(p)
+}
+
+func (b *boolValue) Set(s string) error {
+	v, err := strconv.ParseBool(s)
+	*b = boolValue(v)
+	return err
+}
+
+func (b *boolValue) Type() string {
+	return "bool"
+}
+
+func (b *boolValue) String() string { return strconv.FormatBool(bool(*b)) }
+
+func (b *boolValue) IsBoolFlag() bool { return true }
+
+func boolConv(sval string) (interface{}, error) {
+	return strconv.ParseBool(sval)
+}
+
+// GetBool return the bool value of a flag with the given name
+func (f *FlagSet) GetBool(name string) (bool, error) {
+	val, err := f.getFlagType(name, "bool", boolConv)
+	if err != nil {
+		return false, err
+	}
+	return val.(bool), nil
+}
+
+// BoolVar defines a bool flag with specified name, default value, and usage string.
+// The argument p points to a bool variable in which to store the value of the flag.
+func (f *FlagSet) BoolVar(p *bool, name string, value bool, usage string) {
+	f.BoolVarP(p, name, "", value, usage)
+}
+
+// BoolVarP is like BoolVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) BoolVarP(p *bool, name, shorthand string, value bool, usage string) {
+	flag := f.VarPF(newBoolValue(value, p), name, shorthand, usage)
+	flag.NoOptDefVal = "true"
+}
+
+// BoolVar defines a bool flag with specified name, default value, and usage string.
+// The argument p points to a bool variable in which to store the value of the flag.
+func BoolVar(p *bool, name string, value bool, usage string) {
+	BoolVarP(p, name, "", value, usage)
+}
+
+// BoolVarP is like BoolVar, but accepts a shorthand letter that can be used after a single dash.
+func BoolVarP(p *bool, name, shorthand string, value bool, usage string) {
+	flag := CommandLine.VarPF(newBoolValue(value, p), name, shorthand, usage)
+	flag.NoOptDefVal = "true"
+}
+
+// Bool defines a bool flag with specified name, default value, and usage string.
+// The return value is the address of a bool variable that stores the value of the flag.
+func (f *FlagSet) Bool(name string, value bool, usage string) *bool {
+	return f.BoolP(name, "", value, usage)
+}
+
+// BoolP is like Bool, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) BoolP(name, shorthand string, value bool, usage string) *bool {
+	p := new(bool)
+	f.BoolVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Bool defines a bool flag with specified name, default value, and usage string.
+// The return value is the address of a bool variable that stores the value of the flag.
+func Bool(name string, value bool, usage string) *bool {
+	return BoolP(name, "", value, usage)
+}
+
+// BoolP is like Bool, but accepts a shorthand letter that can be used after a single dash.
+func BoolP(name, shorthand string, value bool, usage string) *bool {
+	b := CommandLine.BoolP(name, shorthand, value, usage)
+	return b
+}

vendor/github.com/spf13/pflag/bool_slice.go

@@ -0,0 +1,147 @@
+package pflag
+
+import (
+	"io"
+	"strconv"
+	"strings"
+)
+
+// -- boolSlice Value
+type boolSliceValue struct {
+	value   *[]bool
+	changed bool
+}
+
+func newBoolSliceValue(val []bool, p *[]bool) *boolSliceValue {
+	bsv := new(boolSliceValue)
+	bsv.value = p
+	*bsv.value = val
+	return bsv
+}
+
+// Set converts, and assigns, the comma-separated boolean argument string representation as the []bool value of this flag.
+// If Set is called on a flag that already has a []bool assigned, the newly converted values will be appended.
+func (s *boolSliceValue) Set(val string) error {
+
+	// remove all quote characters
+	rmQuote := strings.NewReplacer(`"`, "", `'`, "", "`", "")
+
+	// read flag arguments with CSV parser
+	boolStrSlice, err := readAsCSV(rmQuote.Replace(val))
+	if err != nil && err != io.EOF {
+		return err
+	}
+
+	// parse boolean values into slice
+	out := make([]bool, 0, len(boolStrSlice))
+	for _, boolStr := range boolStrSlice {
+		b, err := strconv.ParseBool(strings.TrimSpace(boolStr))
+		if err != nil {
+			return err
+		}
+		out = append(out, b)
+	}
+
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+
+	s.changed = true
+
+	return nil
+}
+
+// Type returns a string that uniquely represents this flag's type.
+func (s *boolSliceValue) Type() string {
+	return "boolSlice"
+}
+
+// String defines a "native" format for this boolean slice flag value.
+func (s *boolSliceValue) String() string {
+
+	boolStrSlice := make([]string, len(*s.value))
+	for i, b := range *s.value {
+		boolStrSlice[i] = strconv.FormatBool(b)
+	}
+
+	out, _ := writeAsCSV(boolStrSlice)
+
+	return "[" + out + "]"
+}
+
+func boolSliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []bool{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]bool, len(ss))
+	for i, t := range ss {
+		var err error
+		out[i], err = strconv.ParseBool(t)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return out, nil
+}
+
+// GetBoolSlice returns the []bool value of a flag with the given name.
+func (f *FlagSet) GetBoolSlice(name string) ([]bool, error) {
+	val, err := f.getFlagType(name, "boolSlice", boolSliceConv)
+	if err != nil {
+		return []bool{}, err
+	}
+	return val.([]bool), nil
+}
+
+// BoolSliceVar defines a boolSlice flag with specified name, default value, and usage string.
+// The argument p points to a []bool variable in which to store the value of the flag.
+func (f *FlagSet) BoolSliceVar(p *[]bool, name string, value []bool, usage string) {
+	f.VarP(newBoolSliceValue(value, p), name, "", usage)
+}
+
+// BoolSliceVarP is like BoolSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) BoolSliceVarP(p *[]bool, name, shorthand string, value []bool, usage string) {
+	f.VarP(newBoolSliceValue(value, p), name, shorthand, usage)
+}
+
+// BoolSliceVar defines a []bool flag with specified name, default value, and usage string.
+// The argument p points to a []bool variable in which to store the value of the flag.
+func BoolSliceVar(p *[]bool, name string, value []bool, usage string) {
+	CommandLine.VarP(newBoolSliceValue(value, p), name, "", usage)
+}
+
+// BoolSliceVarP is like BoolSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func BoolSliceVarP(p *[]bool, name, shorthand string, value []bool, usage string) {
+	CommandLine.VarP(newBoolSliceValue(value, p), name, shorthand, usage)
+}
+
+// BoolSlice defines a []bool flag with specified name, default value, and usage string.
+// The return value is the address of a []bool variable that stores the value of the flag.
+func (f *FlagSet) BoolSlice(name string, value []bool, usage string) *[]bool {
+	p := []bool{}
+	f.BoolSliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// BoolSliceP is like BoolSlice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) BoolSliceP(name, shorthand string, value []bool, usage string) *[]bool {
+	p := []bool{}
+	f.BoolSliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// BoolSlice defines a []bool flag with specified name, default value, and usage string.
+// The return value is the address of a []bool variable that stores the value of the flag.
+func BoolSlice(name string, value []bool, usage string) *[]bool {
+	return CommandLine.BoolSliceP(name, "", value, usage)
+}
+
+// BoolSliceP is like BoolSlice, but accepts a shorthand letter that can be used after a single dash.
+func BoolSliceP(name, shorthand string, value []bool, usage string) *[]bool {
+	return CommandLine.BoolSliceP(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/bytes.go

@@ -0,0 +1,105 @@
+package pflag
+
+import (
+	"encoding/hex"
+	"fmt"
+	"strings"
+)
+
+// BytesHex adapts []byte for use as a flag. Value of flag is HEX encoded
+type bytesHexValue []byte
+
+func (bytesHex bytesHexValue) String() string {
+	return fmt.Sprintf("%X", []byte(bytesHex))
+}
+
+func (bytesHex *bytesHexValue) Set(value string) error {
+	bin, err := hex.DecodeString(strings.TrimSpace(value))
+
+	if err != nil {
+		return err
+	}
+
+	*bytesHex = bin
+
+	return nil
+}
+
+func (*bytesHexValue) Type() string {
+	return "bytesHex"
+}
+
+func newBytesHexValue(val []byte, p *[]byte) *bytesHexValue {
+	*p = val
+	return (*bytesHexValue)(p)
+}
+
+func bytesHexConv(sval string) (interface{}, error) {
+
+	bin, err := hex.DecodeString(sval)
+
+	if err == nil {
+		return bin, nil
+	}
+
+	return nil, fmt.Errorf("invalid string being converted to Bytes: %s %s", sval, err)
+}
+
+// GetBytesHex return the []byte value of a flag with the given name
+func (f *FlagSet) GetBytesHex(name string) ([]byte, error) {
+	val, err := f.getFlagType(name, "bytesHex", bytesHexConv)
+
+	if err != nil {
+		return []byte{}, err
+	}
+
+	return val.([]byte), nil
+}
+
+// BytesHexVar defines an []byte flag with specified name, default value, and usage string.
+// The argument p points to an []byte variable in which to store the value of the flag.
+func (f *FlagSet) BytesHexVar(p *[]byte, name string, value []byte, usage string) {
+	f.VarP(newBytesHexValue(value, p), name, "", usage)
+}
+
+// BytesHexVarP is like BytesHexVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) BytesHexVarP(p *[]byte, name, shorthand string, value []byte, usage string) {
+	f.VarP(newBytesHexValue(value, p), name, shorthand, usage)
+}
+
+// BytesHexVar defines an []byte flag with specified name, default value, and usage string.
+// The argument p points to an []byte variable in which to store the value of the flag.
+func BytesHexVar(p *[]byte, name string, value []byte, usage string) {
+	CommandLine.VarP(newBytesHexValue(value, p), name, "", usage)
+}
+
+// BytesHexVarP is like BytesHexVar, but accepts a shorthand letter that can be used after a single dash.
+func BytesHexVarP(p *[]byte, name, shorthand string, value []byte, usage string) {
+	CommandLine.VarP(newBytesHexValue(value, p), name, shorthand, usage)
+}
+
+// BytesHex defines an []byte flag with specified name, default value, and usage string.
+// The return value is the address of an []byte variable that stores the value of the flag.
+func (f *FlagSet) BytesHex(name string, value []byte, usage string) *[]byte {
+	p := new([]byte)
+	f.BytesHexVarP(p, name, "", value, usage)
+	return p
+}
+
+// BytesHexP is like BytesHex, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) BytesHexP(name, shorthand string, value []byte, usage string) *[]byte {
+	p := new([]byte)
+	f.BytesHexVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// BytesHex defines an []byte flag with specified name, default value, and usage string.
+// The return value is the address of an []byte variable that stores the value of the flag.
+func BytesHex(name string, value []byte, usage string) *[]byte {
+	return CommandLine.BytesHexP(name, "", value, usage)
+}
+
+// BytesHexP is like BytesHex, but accepts a shorthand letter that can be used after a single dash.
+func BytesHexP(name, shorthand string, value []byte, usage string) *[]byte {
+	return CommandLine.BytesHexP(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/count.go

@@ -0,0 +1,96 @@
+package pflag
+
+import "strconv"
+
+// -- count Value
+type countValue int
+
+func newCountValue(val int, p *int) *countValue {
+	*p = val
+	return (*countValue)(p)
+}
+
+func (i *countValue) Set(s string) error {
+	// "+1" means that no specific value was passed, so increment
+	if s == "+1" {
+		*i = countValue(*i + 1)
+		return nil
+	}
+	v, err := strconv.ParseInt(s, 0, 0)
+	*i = countValue(v)
+	return err
+}
+
+func (i *countValue) Type() string {
+	return "count"
+}
+
+func (i *countValue) String() string { return strconv.Itoa(int(*i)) }
+
+func countConv(sval string) (interface{}, error) {
+	i, err := strconv.Atoi(sval)
+	if err != nil {
+		return nil, err
+	}
+	return i, nil
+}
+
+// GetCount return the int value of a flag with the given name
+func (f *FlagSet) GetCount(name string) (int, error) {
+	val, err := f.getFlagType(name, "count", countConv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int), nil
+}
+
+// CountVar defines a count flag with specified name, default value, and usage string.
+// The argument p points to an int variable in which to store the value of the flag.
+// A count flag will add 1 to its value evey time it is found on the command line
+func (f *FlagSet) CountVar(p *int, name string, usage string) {
+	f.CountVarP(p, name, "", usage)
+}
+
+// CountVarP is like CountVar only take a shorthand for the flag name.
+func (f *FlagSet) CountVarP(p *int, name, shorthand string, usage string) {
+	flag := f.VarPF(newCountValue(0, p), name, shorthand, usage)
+	flag.NoOptDefVal = "+1"
+}
+
+// CountVar like CountVar only the flag is placed on the CommandLine instead of a given flag set
+func CountVar(p *int, name string, usage string) {
+	CommandLine.CountVar(p, name, usage)
+}
+
+// CountVarP is like CountVar only take a shorthand for the flag name.
+func CountVarP(p *int, name, shorthand string, usage string) {
+	CommandLine.CountVarP(p, name, shorthand, usage)
+}
+
+// Count defines a count flag with specified name, default value, and usage string.
+// The return value is the address of an int variable that stores the value of the flag.
+// A count flag will add 1 to its value evey time it is found on the command line
+func (f *FlagSet) Count(name string, usage string) *int {
+	p := new(int)
+	f.CountVarP(p, name, "", usage)
+	return p
+}
+
+// CountP is like Count only takes a shorthand for the flag name.
+func (f *FlagSet) CountP(name, shorthand string, usage string) *int {
+	p := new(int)
+	f.CountVarP(p, name, shorthand, usage)
+	return p
+}
+
+// Count defines a count flag with specified name, default value, and usage string.
+// The return value is the address of an int variable that stores the value of the flag.
+// A count flag will add 1 to its value evey time it is found on the command line
+func Count(name string, usage string) *int {
+	return CommandLine.CountP(name, "", usage)
+}
+
+// CountP is like Count only takes a shorthand for the flag name.
+func CountP(name, shorthand string, usage string) *int {
+	return CommandLine.CountP(name, shorthand, usage)
+}

vendor/github.com/spf13/pflag/duration.go

@@ -0,0 +1,86 @@
+package pflag
+
+import (
+	"time"
+)
+
+// -- time.Duration Value
+type durationValue time.Duration
+
+func newDurationValue(val time.Duration, p *time.Duration) *durationValue {
+	*p = val
+	return (*durationValue)(p)
+}
+
+func (d *durationValue) Set(s string) error {
+	v, err := time.ParseDuration(s)
+	*d = durationValue(v)
+	return err
+}
+
+func (d *durationValue) Type() string {
+	return "duration"
+}
+
+func (d *durationValue) String() string { return (*time.Duration)(d).String() }
+
+func durationConv(sval string) (interface{}, error) {
+	return time.ParseDuration(sval)
+}
+
+// GetDuration return the duration value of a flag with the given name
+func (f *FlagSet) GetDuration(name string) (time.Duration, error) {
+	val, err := f.getFlagType(name, "duration", durationConv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(time.Duration), nil
+}
+
+// DurationVar defines a time.Duration flag with specified name, default value, and usage string.
+// The argument p points to a time.Duration variable in which to store the value of the flag.
+func (f *FlagSet) DurationVar(p *time.Duration, name string, value time.Duration, usage string) {
+	f.VarP(newDurationValue(value, p), name, "", usage)
+}
+
+// DurationVarP is like DurationVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) DurationVarP(p *time.Duration, name, shorthand string, value time.Duration, usage string) {
+	f.VarP(newDurationValue(value, p), name, shorthand, usage)
+}
+
+// DurationVar defines a time.Duration flag with specified name, default value, and usage string.
+// The argument p points to a time.Duration variable in which to store the value of the flag.
+func DurationVar(p *time.Duration, name string, value time.Duration, usage string) {
+	CommandLine.VarP(newDurationValue(value, p), name, "", usage)
+}
+
+// DurationVarP is like DurationVar, but accepts a shorthand letter that can be used after a single dash.
+func DurationVarP(p *time.Duration, name, shorthand string, value time.Duration, usage string) {
+	CommandLine.VarP(newDurationValue(value, p), name, shorthand, usage)
+}
+
+// Duration defines a time.Duration flag with specified name, default value, and usage string.
+// The return value is the address of a time.Duration variable that stores the value of the flag.
+func (f *FlagSet) Duration(name string, value time.Duration, usage string) *time.Duration {
+	p := new(time.Duration)
+	f.DurationVarP(p, name, "", value, usage)
+	return p
+}
+
+// DurationP is like Duration, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) DurationP(name, shorthand string, value time.Duration, usage string) *time.Duration {
+	p := new(time.Duration)
+	f.DurationVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Duration defines a time.Duration flag with specified name, default value, and usage string.
+// The return value is the address of a time.Duration variable that stores the value of the flag.
+func Duration(name string, value time.Duration, usage string) *time.Duration {
+	return CommandLine.DurationP(name, "", value, usage)
+}
+
+// DurationP is like Duration, but accepts a shorthand letter that can be used after a single dash.
+func DurationP(name, shorthand string, value time.Duration, usage string) *time.Duration {
+	return CommandLine.DurationP(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/duration_slice.go

@@ -0,0 +1,128 @@
+package pflag
+
+import (
+	"fmt"
+	"strings"
+	"time"
+)
+
+// -- durationSlice Value
+type durationSliceValue struct {
+	value   *[]time.Duration
+	changed bool
+}
+
+func newDurationSliceValue(val []time.Duration, p *[]time.Duration) *durationSliceValue {
+	dsv := new(durationSliceValue)
+	dsv.value = p
+	*dsv.value = val
+	return dsv
+}
+
+func (s *durationSliceValue) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make([]time.Duration, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = time.ParseDuration(d)
+		if err != nil {
+			return err
+		}
+
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *durationSliceValue) Type() string {
+	return "durationSlice"
+}
+
+func (s *durationSliceValue) String() string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = fmt.Sprintf("%s", d)
+	}
+	return "[" + strings.Join(out, ",") + "]"
+}
+
+func durationSliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []time.Duration{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]time.Duration, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = time.ParseDuration(d)
+		if err != nil {
+			return nil, err
+		}
+
+	}
+	return out, nil
+}
+
+// GetDurationSlice returns the []time.Duration value of a flag with the given name
+func (f *FlagSet) GetDurationSlice(name string) ([]time.Duration, error) {
+	val, err := f.getFlagType(name, "durationSlice", durationSliceConv)
+	if err != nil {
+		return []time.Duration{}, err
+	}
+	return val.([]time.Duration), nil
+}
+
+// DurationSliceVar defines a durationSlice flag with specified name, default value, and usage string.
+// The argument p points to a []time.Duration variable in which to store the value of the flag.
+func (f *FlagSet) DurationSliceVar(p *[]time.Duration, name string, value []time.Duration, usage string) {
+	f.VarP(newDurationSliceValue(value, p), name, "", usage)
+}
+
+// DurationSliceVarP is like DurationSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) DurationSliceVarP(p *[]time.Duration, name, shorthand string, value []time.Duration, usage string) {
+	f.VarP(newDurationSliceValue(value, p), name, shorthand, usage)
+}
+
+// DurationSliceVar defines a duration[] flag with specified name, default value, and usage string.
+// The argument p points to a duration[] variable in which to store the value of the flag.
+func DurationSliceVar(p *[]time.Duration, name string, value []time.Duration, usage string) {
+	CommandLine.VarP(newDurationSliceValue(value, p), name, "", usage)
+}
+
+// DurationSliceVarP is like DurationSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func DurationSliceVarP(p *[]time.Duration, name, shorthand string, value []time.Duration, usage string) {
+	CommandLine.VarP(newDurationSliceValue(value, p), name, shorthand, usage)
+}
+
+// DurationSlice defines a []time.Duration flag with specified name, default value, and usage string.
+// The return value is the address of a []time.Duration variable that stores the value of the flag.
+func (f *FlagSet) DurationSlice(name string, value []time.Duration, usage string) *[]time.Duration {
+	p := []time.Duration{}
+	f.DurationSliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// DurationSliceP is like DurationSlice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) DurationSliceP(name, shorthand string, value []time.Duration, usage string) *[]time.Duration {
+	p := []time.Duration{}
+	f.DurationSliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// DurationSlice defines a []time.Duration flag with specified name, default value, and usage string.
+// The return value is the address of a []time.Duration variable that stores the value of the flag.
+func DurationSlice(name string, value []time.Duration, usage string) *[]time.Duration {
+	return CommandLine.DurationSliceP(name, "", value, usage)
+}
+
+// DurationSliceP is like DurationSlice, but accepts a shorthand letter that can be used after a single dash.
+func DurationSliceP(name, shorthand string, value []time.Duration, usage string) *[]time.Duration {
+	return CommandLine.DurationSliceP(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/float32.go

@@ -0,0 +1,88 @@
+package pflag
+
+import "strconv"
+
+// -- float32 Value
+type float32Value float32
+
+func newFloat32Value(val float32, p *float32) *float32Value {
+	*p = val
+	return (*float32Value)(p)
+}
+
+func (f *float32Value) Set(s string) error {
+	v, err := strconv.ParseFloat(s, 32)
+	*f = float32Value(v)
+	return err
+}
+
+func (f *float32Value) Type() string {
+	return "float32"
+}
+
+func (f *float32Value) String() string { return strconv.FormatFloat(float64(*f), 'g', -1, 32) }
+
+func float32Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseFloat(sval, 32)
+	if err != nil {
+		return 0, err
+	}
+	return float32(v), nil
+}
+
+// GetFloat32 return the float32 value of a flag with the given name
+func (f *FlagSet) GetFloat32(name string) (float32, error) {
+	val, err := f.getFlagType(name, "float32", float32Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(float32), nil
+}
+
+// Float32Var defines a float32 flag with specified name, default value, and usage string.
+// The argument p points to a float32 variable in which to store the value of the flag.
+func (f *FlagSet) Float32Var(p *float32, name string, value float32, usage string) {
+	f.VarP(newFloat32Value(value, p), name, "", usage)
+}
+
+// Float32VarP is like Float32Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Float32VarP(p *float32, name, shorthand string, value float32, usage string) {
+	f.VarP(newFloat32Value(value, p), name, shorthand, usage)
+}
+
+// Float32Var defines a float32 flag with specified name, default value, and usage string.
+// The argument p points to a float32 variable in which to store the value of the flag.
+func Float32Var(p *float32, name string, value float32, usage string) {
+	CommandLine.VarP(newFloat32Value(value, p), name, "", usage)
+}
+
+// Float32VarP is like Float32Var, but accepts a shorthand letter that can be used after a single dash.
+func Float32VarP(p *float32, name, shorthand string, value float32, usage string) {
+	CommandLine.VarP(newFloat32Value(value, p), name, shorthand, usage)
+}
+
+// Float32 defines a float32 flag with specified name, default value, and usage string.
+// The return value is the address of a float32 variable that stores the value of the flag.
+func (f *FlagSet) Float32(name string, value float32, usage string) *float32 {
+	p := new(float32)
+	f.Float32VarP(p, name, "", value, usage)
+	return p
+}
+
+// Float32P is like Float32, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Float32P(name, shorthand string, value float32, usage string) *float32 {
+	p := new(float32)
+	f.Float32VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Float32 defines a float32 flag with specified name, default value, and usage string.
+// The return value is the address of a float32 variable that stores the value of the flag.
+func Float32(name string, value float32, usage string) *float32 {
+	return CommandLine.Float32P(name, "", value, usage)
+}
+
+// Float32P is like Float32, but accepts a shorthand letter that can be used after a single dash.
+func Float32P(name, shorthand string, value float32, usage string) *float32 {
+	return CommandLine.Float32P(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/float64.go

@@ -0,0 +1,84 @@
+package pflag
+
+import "strconv"
+
+// -- float64 Value
+type float64Value float64
+
+func newFloat64Value(val float64, p *float64) *float64Value {
+	*p = val
+	return (*float64Value)(p)
+}
+
+func (f *float64Value) Set(s string) error {
+	v, err := strconv.ParseFloat(s, 64)
+	*f = float64Value(v)
+	return err
+}
+
+func (f *float64Value) Type() string {
+	return "float64"
+}
+
+func (f *float64Value) String() string { return strconv.FormatFloat(float64(*f), 'g', -1, 64) }
+
+func float64Conv(sval string) (interface{}, error) {
+	return strconv.ParseFloat(sval, 64)
+}
+
+// GetFloat64 return the float64 value of a flag with the given name
+func (f *FlagSet) GetFloat64(name string) (float64, error) {
+	val, err := f.getFlagType(name, "float64", float64Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(float64), nil
+}
+
+// Float64Var defines a float64 flag with specified name, default value, and usage string.
+// The argument p points to a float64 variable in which to store the value of the flag.
+func (f *FlagSet) Float64Var(p *float64, name string, value float64, usage string) {
+	f.VarP(newFloat64Value(value, p), name, "", usage)
+}
+
+// Float64VarP is like Float64Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Float64VarP(p *float64, name, shorthand string, value float64, usage string) {
+	f.VarP(newFloat64Value(value, p), name, shorthand, usage)
+}
+
+// Float64Var defines a float64 flag with specified name, default value, and usage string.
+// The argument p points to a float64 variable in which to store the value of the flag.
+func Float64Var(p *float64, name string, value float64, usage string) {
+	CommandLine.VarP(newFloat64Value(value, p), name, "", usage)
+}
+
+// Float64VarP is like Float64Var, but accepts a shorthand letter that can be used after a single dash.
+func Float64VarP(p *float64, name, shorthand string, value float64, usage string) {
+	CommandLine.VarP(newFloat64Value(value, p), name, shorthand, usage)
+}
+
+// Float64 defines a float64 flag with specified name, default value, and usage string.
+// The return value is the address of a float64 variable that stores the value of the flag.
+func (f *FlagSet) Float64(name string, value float64, usage string) *float64 {
+	p := new(float64)
+	f.Float64VarP(p, name, "", value, usage)
+	return p
+}
+
+// Float64P is like Float64, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Float64P(name, shorthand string, value float64, usage string) *float64 {
+	p := new(float64)
+	f.Float64VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Float64 defines a float64 flag with specified name, default value, and usage string.
+// The return value is the address of a float64 variable that stores the value of the flag.
+func Float64(name string, value float64, usage string) *float64 {
+	return CommandLine.Float64P(name, "", value, usage)
+}
+
+// Float64P is like Float64, but accepts a shorthand letter that can be used after a single dash.
+func Float64P(name, shorthand string, value float64, usage string) *float64 {
+	return CommandLine.Float64P(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/golangflag.go

@@ -0,0 +1,105 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package pflag
+
+import (
+	goflag "flag"
+	"reflect"
+	"strings"
+)
+
+// flagValueWrapper implements pflag.Value around a flag.Value.  The main
+// difference here is the addition of the Type method that returns a string
+// name of the type.  As this is generally unknown, we approximate that with
+// reflection.
+type flagValueWrapper struct {
+	inner    goflag.Value
+	flagType string
+}
+
+// We are just copying the boolFlag interface out of goflag as that is what
+// they use to decide if a flag should get "true" when no arg is given.
+type goBoolFlag interface {
+	goflag.Value
+	IsBoolFlag() bool
+}
+
+func wrapFlagValue(v goflag.Value) Value {
+	// If the flag.Value happens to also be a pflag.Value, just use it directly.
+	if pv, ok := v.(Value); ok {
+		return pv
+	}
+
+	pv := &flagValueWrapper{
+		inner: v,
+	}
+
+	t := reflect.TypeOf(v)
+	if t.Kind() == reflect.Interface || t.Kind() == reflect.Ptr {
+		t = t.Elem()
+	}
+
+	pv.flagType = strings.TrimSuffix(t.Name(), "Value")
+	return pv
+}
+
+func (v *flagValueWrapper) String() string {
+	return v.inner.String()
+}
+
+func (v *flagValueWrapper) Set(s string) error {
+	return v.inner.Set(s)
+}
+
+func (v *flagValueWrapper) Type() string {
+	return v.flagType
+}
+
+// PFlagFromGoFlag will return a *pflag.Flag given a *flag.Flag
+// If the *flag.Flag.Name was a single character (ex: `v`) it will be accessiblei
+// with both `-v` and `--v` in flags. If the golang flag was more than a single
+// character (ex: `verbose`) it will only be accessible via `--verbose`
+func PFlagFromGoFlag(goflag *goflag.Flag) *Flag {
+	// Remember the default value as a string; it won't change.
+	flag := &Flag{
+		Name:  goflag.Name,
+		Usage: goflag.Usage,
+		Value: wrapFlagValue(goflag.Value),
+		// Looks like golang flags don't set DefValue correctly  :-(
+		//DefValue: goflag.DefValue,
+		DefValue: goflag.Value.String(),
+	}
+	// Ex: if the golang flag was -v, allow both -v and --v to work
+	if len(flag.Name) == 1 {
+		flag.Shorthand = flag.Name
+	}
+	if fv, ok := goflag.Value.(goBoolFlag); ok && fv.IsBoolFlag() {
+		flag.NoOptDefVal = "true"
+	}
+	return flag
+}
+
+// AddGoFlag will add the given *flag.Flag to the pflag.FlagSet
+func (f *FlagSet) AddGoFlag(goflag *goflag.Flag) {
+	if f.Lookup(goflag.Name) != nil {
+		return
+	}
+	newflag := PFlagFromGoFlag(goflag)
+	f.AddFlag(newflag)
+}
+
+// AddGoFlagSet will add the given *flag.FlagSet to the pflag.FlagSet
+func (f *FlagSet) AddGoFlagSet(newSet *goflag.FlagSet) {
+	if newSet == nil {
+		return
+	}
+	newSet.VisitAll(func(goflag *goflag.Flag) {
+		f.AddGoFlag(goflag)
+	})
+	if f.addedGoFlagSets == nil {
+		f.addedGoFlagSets = make([]*goflag.FlagSet, 0)
+	}
+	f.addedGoFlagSets = append(f.addedGoFlagSets, newSet)
+}

vendor/github.com/spf13/pflag/int.go

@@ -0,0 +1,84 @@
+package pflag
+
+import "strconv"
+
+// -- int Value
+type intValue int
+
+func newIntValue(val int, p *int) *intValue {
+	*p = val
+	return (*intValue)(p)
+}
+
+func (i *intValue) Set(s string) error {
+	v, err := strconv.ParseInt(s, 0, 64)
+	*i = intValue(v)
+	return err
+}
+
+func (i *intValue) Type() string {
+	return "int"
+}
+
+func (i *intValue) String() string { return strconv.Itoa(int(*i)) }
+
+func intConv(sval string) (interface{}, error) {
+	return strconv.Atoi(sval)
+}
+
+// GetInt return the int value of a flag with the given name
+func (f *FlagSet) GetInt(name string) (int, error) {
+	val, err := f.getFlagType(name, "int", intConv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int), nil
+}
+
+// IntVar defines an int flag with specified name, default value, and usage string.
+// The argument p points to an int variable in which to store the value of the flag.
+func (f *FlagSet) IntVar(p *int, name string, value int, usage string) {
+	f.VarP(newIntValue(value, p), name, "", usage)
+}
+
+// IntVarP is like IntVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IntVarP(p *int, name, shorthand string, value int, usage string) {
+	f.VarP(newIntValue(value, p), name, shorthand, usage)
+}
+
+// IntVar defines an int flag with specified name, default value, and usage string.
+// The argument p points to an int variable in which to store the value of the flag.
+func IntVar(p *int, name string, value int, usage string) {
+	CommandLine.VarP(newIntValue(value, p), name, "", usage)
+}
+
+// IntVarP is like IntVar, but accepts a shorthand letter that can be used after a single dash.
+func IntVarP(p *int, name, shorthand string, value int, usage string) {
+	CommandLine.VarP(newIntValue(value, p), name, shorthand, usage)
+}
+
+// Int defines an int flag with specified name, default value, and usage string.
+// The return value is the address of an int variable that stores the value of the flag.
+func (f *FlagSet) Int(name string, value int, usage string) *int {
+	p := new(int)
+	f.IntVarP(p, name, "", value, usage)
+	return p
+}
+
+// IntP is like Int, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IntP(name, shorthand string, value int, usage string) *int {
+	p := new(int)
+	f.IntVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Int defines an int flag with specified name, default value, and usage string.
+// The return value is the address of an int variable that stores the value of the flag.
+func Int(name string, value int, usage string) *int {
+	return CommandLine.IntP(name, "", value, usage)
+}
+
+// IntP is like Int, but accepts a shorthand letter that can be used after a single dash.
+func IntP(name, shorthand string, value int, usage string) *int {
+	return CommandLine.IntP(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/int16.go

@@ -0,0 +1,88 @@
+package pflag
+
+import "strconv"
+
+// -- int16 Value
+type int16Value int16
+
+func newInt16Value(val int16, p *int16) *int16Value {
+	*p = val
+	return (*int16Value)(p)
+}
+
+func (i *int16Value) Set(s string) error {
+	v, err := strconv.ParseInt(s, 0, 16)
+	*i = int16Value(v)
+	return err
+}
+
+func (i *int16Value) Type() string {
+	return "int16"
+}
+
+func (i *int16Value) String() string { return strconv.FormatInt(int64(*i), 10) }
+
+func int16Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseInt(sval, 0, 16)
+	if err != nil {
+		return 0, err
+	}
+	return int16(v), nil
+}
+
+// GetInt16 returns the int16 value of a flag with the given name
+func (f *FlagSet) GetInt16(name string) (int16, error) {
+	val, err := f.getFlagType(name, "int16", int16Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int16), nil
+}
+
+// Int16Var defines an int16 flag with specified name, default value, and usage string.
+// The argument p points to an int16 variable in which to store the value of the flag.
+func (f *FlagSet) Int16Var(p *int16, name string, value int16, usage string) {
+	f.VarP(newInt16Value(value, p), name, "", usage)
+}
+
+// Int16VarP is like Int16Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int16VarP(p *int16, name, shorthand string, value int16, usage string) {
+	f.VarP(newInt16Value(value, p), name, shorthand, usage)
+}
+
+// Int16Var defines an int16 flag with specified name, default value, and usage string.
+// The argument p points to an int16 variable in which to store the value of the flag.
+func Int16Var(p *int16, name string, value int16, usage string) {
+	CommandLine.VarP(newInt16Value(value, p), name, "", usage)
+}
+
+// Int16VarP is like Int16Var, but accepts a shorthand letter that can be used after a single dash.
+func Int16VarP(p *int16, name, shorthand string, value int16, usage string) {
+	CommandLine.VarP(newInt16Value(value, p), name, shorthand, usage)
+}
+
+// Int16 defines an int16 flag with specified name, default value, and usage string.
+// The return value is the address of an int16 variable that stores the value of the flag.
+func (f *FlagSet) Int16(name string, value int16, usage string) *int16 {
+	p := new(int16)
+	f.Int16VarP(p, name, "", value, usage)
+	return p
+}
+
+// Int16P is like Int16, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int16P(name, shorthand string, value int16, usage string) *int16 {
+	p := new(int16)
+	f.Int16VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Int16 defines an int16 flag with specified name, default value, and usage string.
+// The return value is the address of an int16 variable that stores the value of the flag.
+func Int16(name string, value int16, usage string) *int16 {
+	return CommandLine.Int16P(name, "", value, usage)
+}
+
+// Int16P is like Int16, but accepts a shorthand letter that can be used after a single dash.
+func Int16P(name, shorthand string, value int16, usage string) *int16 {
+	return CommandLine.Int16P(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/int32.go

@@ -0,0 +1,88 @@
+package pflag
+
+import "strconv"
+
+// -- int32 Value
+type int32Value int32
+
+func newInt32Value(val int32, p *int32) *int32Value {
+	*p = val
+	return (*int32Value)(p)
+}
+
+func (i *int32Value) Set(s string) error {
+	v, err := strconv.ParseInt(s, 0, 32)
+	*i = int32Value(v)
+	return err
+}
+
+func (i *int32Value) Type() string {
+	return "int32"
+}
+
+func (i *int32Value) String() string { return strconv.FormatInt(int64(*i), 10) }
+
+func int32Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseInt(sval, 0, 32)
+	if err != nil {
+		return 0, err
+	}
+	return int32(v), nil
+}
+
+// GetInt32 return the int32 value of a flag with the given name
+func (f *FlagSet) GetInt32(name string) (int32, error) {
+	val, err := f.getFlagType(name, "int32", int32Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int32), nil
+}
+
+// Int32Var defines an int32 flag with specified name, default value, and usage string.
+// The argument p points to an int32 variable in which to store the value of the flag.
+func (f *FlagSet) Int32Var(p *int32, name string, value int32, usage string) {
+	f.VarP(newInt32Value(value, p), name, "", usage)
+}
+
+// Int32VarP is like Int32Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int32VarP(p *int32, name, shorthand string, value int32, usage string) {
+	f.VarP(newInt32Value(value, p), name, shorthand, usage)
+}
+
+// Int32Var defines an int32 flag with specified name, default value, and usage string.
+// The argument p points to an int32 variable in which to store the value of the flag.
+func Int32Var(p *int32, name string, value int32, usage string) {
+	CommandLine.VarP(newInt32Value(value, p), name, "", usage)
+}
+
+// Int32VarP is like Int32Var, but accepts a shorthand letter that can be used after a single dash.
+func Int32VarP(p *int32, name, shorthand string, value int32, usage string) {
+	CommandLine.VarP(newInt32Value(value, p), name, shorthand, usage)
+}
+
+// Int32 defines an int32 flag with specified name, default value, and usage string.
+// The return value is the address of an int32 variable that stores the value of the flag.
+func (f *FlagSet) Int32(name string, value int32, usage string) *int32 {
+	p := new(int32)
+	f.Int32VarP(p, name, "", value, usage)
+	return p
+}
+
+// Int32P is like Int32, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int32P(name, shorthand string, value int32, usage string) *int32 {
+	p := new(int32)
+	f.Int32VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Int32 defines an int32 flag with specified name, default value, and usage string.
+// The return value is the address of an int32 variable that stores the value of the flag.
+func Int32(name string, value int32, usage string) *int32 {
+	return CommandLine.Int32P(name, "", value, usage)
+}
+
+// Int32P is like Int32, but accepts a shorthand letter that can be used after a single dash.
+func Int32P(name, shorthand string, value int32, usage string) *int32 {
+	return CommandLine.Int32P(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/int64.go

@@ -0,0 +1,84 @@
+package pflag
+
+import "strconv"
+
+// -- int64 Value
+type int64Value int64
+
+func newInt64Value(val int64, p *int64) *int64Value {
+	*p = val
+	return (*int64Value)(p)
+}
+
+func (i *int64Value) Set(s string) error {
+	v, err := strconv.ParseInt(s, 0, 64)
+	*i = int64Value(v)
+	return err
+}
+
+func (i *int64Value) Type() string {
+	return "int64"
+}
+
+func (i *int64Value) String() string { return strconv.FormatInt(int64(*i), 10) }
+
+func int64Conv(sval string) (interface{}, error) {
+	return strconv.ParseInt(sval, 0, 64)
+}
+
+// GetInt64 return the int64 value of a flag with the given name
+func (f *FlagSet) GetInt64(name string) (int64, error) {
+	val, err := f.getFlagType(name, "int64", int64Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int64), nil
+}
+
+// Int64Var defines an int64 flag with specified name, default value, and usage string.
+// The argument p points to an int64 variable in which to store the value of the flag.
+func (f *FlagSet) Int64Var(p *int64, name string, value int64, usage string) {
+	f.VarP(newInt64Value(value, p), name, "", usage)
+}
+
+// Int64VarP is like Int64Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int64VarP(p *int64, name, shorthand string, value int64, usage string) {
+	f.VarP(newInt64Value(value, p), name, shorthand, usage)
+}
+
+// Int64Var defines an int64 flag with specified name, default value, and usage string.
+// The argument p points to an int64 variable in which to store the value of the flag.
+func Int64Var(p *int64, name string, value int64, usage string) {
+	CommandLine.VarP(newInt64Value(value, p), name, "", usage)
+}
+
+// Int64VarP is like Int64Var, but accepts a shorthand letter that can be used after a single dash.
+func Int64VarP(p *int64, name, shorthand string, value int64, usage string) {
+	CommandLine.VarP(newInt64Value(value, p), name, shorthand, usage)
+}
+
+// Int64 defines an int64 flag with specified name, default value, and usage string.
+// The return value is the address of an int64 variable that stores the value of the flag.
+func (f *FlagSet) Int64(name string, value int64, usage string) *int64 {
+	p := new(int64)
+	f.Int64VarP(p, name, "", value, usage)
+	return p
+}
+
+// Int64P is like Int64, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int64P(name, shorthand string, value int64, usage string) *int64 {
+	p := new(int64)
+	f.Int64VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Int64 defines an int64 flag with specified name, default value, and usage string.
+// The return value is the address of an int64 variable that stores the value of the flag.
+func Int64(name string, value int64, usage string) *int64 {
+	return CommandLine.Int64P(name, "", value, usage)
+}
+
+// Int64P is like Int64, but accepts a shorthand letter that can be used after a single dash.
+func Int64P(name, shorthand string, value int64, usage string) *int64 {
+	return CommandLine.Int64P(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/int8.go

@@ -0,0 +1,88 @@
+package pflag
+
+import "strconv"
+
+// -- int8 Value
+type int8Value int8
+
+func newInt8Value(val int8, p *int8) *int8Value {
+	*p = val
+	return (*int8Value)(p)
+}
+
+func (i *int8Value) Set(s string) error {
+	v, err := strconv.ParseInt(s, 0, 8)
+	*i = int8Value(v)
+	return err
+}
+
+func (i *int8Value) Type() string {
+	return "int8"
+}
+
+func (i *int8Value) String() string { return strconv.FormatInt(int64(*i), 10) }
+
+func int8Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseInt(sval, 0, 8)
+	if err != nil {
+		return 0, err
+	}
+	return int8(v), nil
+}
+
+// GetInt8 return the int8 value of a flag with the given name
+func (f *FlagSet) GetInt8(name string) (int8, error) {
+	val, err := f.getFlagType(name, "int8", int8Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int8), nil
+}
+
+// Int8Var defines an int8 flag with specified name, default value, and usage string.
+// The argument p points to an int8 variable in which to store the value of the flag.
+func (f *FlagSet) Int8Var(p *int8, name string, value int8, usage string) {
+	f.VarP(newInt8Value(value, p), name, "", usage)
+}
+
+// Int8VarP is like Int8Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int8VarP(p *int8, name, shorthand string, value int8, usage string) {
+	f.VarP(newInt8Value(value, p), name, shorthand, usage)
+}
+
+// Int8Var defines an int8 flag with specified name, default value, and usage string.
+// The argument p points to an int8 variable in which to store the value of the flag.
+func Int8Var(p *int8, name string, value int8, usage string) {
+	CommandLine.VarP(newInt8Value(value, p), name, "", usage)
+}
+
+// Int8VarP is like Int8Var, but accepts a shorthand letter that can be used after a single dash.
+func Int8VarP(p *int8, name, shorthand string, value int8, usage string) {
+	CommandLine.VarP(newInt8Value(value, p), name, shorthand, usage)
+}
+
+// Int8 defines an int8 flag with specified name, default value, and usage string.
+// The return value is the address of an int8 variable that stores the value of the flag.
+func (f *FlagSet) Int8(name string, value int8, usage string) *int8 {
+	p := new(int8)
+	f.Int8VarP(p, name, "", value, usage)
+	return p
+}
+
+// Int8P is like Int8, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int8P(name, shorthand string, value int8, usage string) *int8 {
+	p := new(int8)
+	f.Int8VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Int8 defines an int8 flag with specified name, default value, and usage string.
+// The return value is the address of an int8 variable that stores the value of the flag.
+func Int8(name string, value int8, usage string) *int8 {
+	return CommandLine.Int8P(name, "", value, usage)
+}
+
+// Int8P is like Int8, but accepts a shorthand letter that can be used after a single dash.
+func Int8P(name, shorthand string, value int8, usage string) *int8 {
+	return CommandLine.Int8P(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/int_slice.go

@@ -0,0 +1,128 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// -- intSlice Value
+type intSliceValue struct {
+	value   *[]int
+	changed bool
+}
+
+func newIntSliceValue(val []int, p *[]int) *intSliceValue {
+	isv := new(intSliceValue)
+	isv.value = p
+	*isv.value = val
+	return isv
+}
+
+func (s *intSliceValue) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make([]int, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = strconv.Atoi(d)
+		if err != nil {
+			return err
+		}
+
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *intSliceValue) Type() string {
+	return "intSlice"
+}
+
+func (s *intSliceValue) String() string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = fmt.Sprintf("%d", d)
+	}
+	return "[" + strings.Join(out, ",") + "]"
+}
+
+func intSliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []int{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]int, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = strconv.Atoi(d)
+		if err != nil {
+			return nil, err
+		}
+
+	}
+	return out, nil
+}
+
+// GetIntSlice return the []int value of a flag with the given name
+func (f *FlagSet) GetIntSlice(name string) ([]int, error) {
+	val, err := f.getFlagType(name, "intSlice", intSliceConv)
+	if err != nil {
+		return []int{}, err
+	}
+	return val.([]int), nil
+}
+
+// IntSliceVar defines a intSlice flag with specified name, default value, and usage string.
+// The argument p points to a []int variable in which to store the value of the flag.
+func (f *FlagSet) IntSliceVar(p *[]int, name string, value []int, usage string) {
+	f.VarP(newIntSliceValue(value, p), name, "", usage)
+}
+
+// IntSliceVarP is like IntSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IntSliceVarP(p *[]int, name, shorthand string, value []int, usage string) {
+	f.VarP(newIntSliceValue(value, p), name, shorthand, usage)
+}
+
+// IntSliceVar defines a int[] flag with specified name, default value, and usage string.
+// The argument p points to a int[] variable in which to store the value of the flag.
+func IntSliceVar(p *[]int, name string, value []int, usage string) {
+	CommandLine.VarP(newIntSliceValue(value, p), name, "", usage)
+}
+
+// IntSliceVarP is like IntSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func IntSliceVarP(p *[]int, name, shorthand string, value []int, usage string) {
+	CommandLine.VarP(newIntSliceValue(value, p), name, shorthand, usage)
+}
+
+// IntSlice defines a []int flag with specified name, default value, and usage string.
+// The return value is the address of a []int variable that stores the value of the flag.
+func (f *FlagSet) IntSlice(name string, value []int, usage string) *[]int {
+	p := []int{}
+	f.IntSliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// IntSliceP is like IntSlice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IntSliceP(name, shorthand string, value []int, usage string) *[]int {
+	p := []int{}
+	f.IntSliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// IntSlice defines a []int flag with specified name, default value, and usage string.
+// The return value is the address of a []int variable that stores the value of the flag.
+func IntSlice(name string, value []int, usage string) *[]int {
+	return CommandLine.IntSliceP(name, "", value, usage)
+}
+
+// IntSliceP is like IntSlice, but accepts a shorthand letter that can be used after a single dash.
+func IntSliceP(name, shorthand string, value []int, usage string) *[]int {
+	return CommandLine.IntSliceP(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/ip.go

@@ -0,0 +1,94 @@
+package pflag
+
+import (
+	"fmt"
+	"net"
+	"strings"
+)
+
+// -- net.IP value
+type ipValue net.IP
+
+func newIPValue(val net.IP, p *net.IP) *ipValue {
+	*p = val
+	return (*ipValue)(p)
+}
+
+func (i *ipValue) String() string { return net.IP(*i).String() }
+func (i *ipValue) Set(s string) error {
+	ip := net.ParseIP(strings.TrimSpace(s))
+	if ip == nil {
+		return fmt.Errorf("failed to parse IP: %q", s)
+	}
+	*i = ipValue(ip)
+	return nil
+}
+
+func (i *ipValue) Type() string {
+	return "ip"
+}
+
+func ipConv(sval string) (interface{}, error) {
+	ip := net.ParseIP(sval)
+	if ip != nil {
+		return ip, nil
+	}
+	return nil, fmt.Errorf("invalid string being converted to IP address: %s", sval)
+}
+
+// GetIP return the net.IP value of a flag with the given name
+func (f *FlagSet) GetIP(name string) (net.IP, error) {
+	val, err := f.getFlagType(name, "ip", ipConv)
+	if err != nil {
+		return nil, err
+	}
+	return val.(net.IP), nil
+}
+
+// IPVar defines an net.IP flag with specified name, default value, and usage string.
+// The argument p points to an net.IP variable in which to store the value of the flag.
+func (f *FlagSet) IPVar(p *net.IP, name string, value net.IP, usage string) {
+	f.VarP(newIPValue(value, p), name, "", usage)
+}
+
+// IPVarP is like IPVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPVarP(p *net.IP, name, shorthand string, value net.IP, usage string) {
+	f.VarP(newIPValue(value, p), name, shorthand, usage)
+}
+
+// IPVar defines an net.IP flag with specified name, default value, and usage string.
+// The argument p points to an net.IP variable in which to store the value of the flag.
+func IPVar(p *net.IP, name string, value net.IP, usage string) {
+	CommandLine.VarP(newIPValue(value, p), name, "", usage)
+}
+
+// IPVarP is like IPVar, but accepts a shorthand letter that can be used after a single dash.
+func IPVarP(p *net.IP, name, shorthand string, value net.IP, usage string) {
+	CommandLine.VarP(newIPValue(value, p), name, shorthand, usage)
+}
+
+// IP defines an net.IP flag with specified name, default value, and usage string.
+// The return value is the address of an net.IP variable that stores the value of the flag.
+func (f *FlagSet) IP(name string, value net.IP, usage string) *net.IP {
+	p := new(net.IP)
+	f.IPVarP(p, name, "", value, usage)
+	return p
+}
+
+// IPP is like IP, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPP(name, shorthand string, value net.IP, usage string) *net.IP {
+	p := new(net.IP)
+	f.IPVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// IP defines an net.IP flag with specified name, default value, and usage string.
+// The return value is the address of an net.IP variable that stores the value of the flag.
+func IP(name string, value net.IP, usage string) *net.IP {
+	return CommandLine.IPP(name, "", value, usage)
+}
+
+// IPP is like IP, but accepts a shorthand letter that can be used after a single dash.
+func IPP(name, shorthand string, value net.IP, usage string) *net.IP {
+	return CommandLine.IPP(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/ip_slice.go

@@ -0,0 +1,148 @@
+package pflag
+
+import (
+	"fmt"
+	"io"
+	"net"
+	"strings"
+)
+
+// -- ipSlice Value
+type ipSliceValue struct {
+	value   *[]net.IP
+	changed bool
+}
+
+func newIPSliceValue(val []net.IP, p *[]net.IP) *ipSliceValue {
+	ipsv := new(ipSliceValue)
+	ipsv.value = p
+	*ipsv.value = val
+	return ipsv
+}
+
+// Set converts, and assigns, the comma-separated IP argument string representation as the []net.IP value of this flag.
+// If Set is called on a flag that already has a []net.IP assigned, the newly converted values will be appended.
+func (s *ipSliceValue) Set(val string) error {
+
+	// remove all quote characters
+	rmQuote := strings.NewReplacer(`"`, "", `'`, "", "`", "")
+
+	// read flag arguments with CSV parser
+	ipStrSlice, err := readAsCSV(rmQuote.Replace(val))
+	if err != nil && err != io.EOF {
+		return err
+	}
+
+	// parse ip values into slice
+	out := make([]net.IP, 0, len(ipStrSlice))
+	for _, ipStr := range ipStrSlice {
+		ip := net.ParseIP(strings.TrimSpace(ipStr))
+		if ip == nil {
+			return fmt.Errorf("invalid string being converted to IP address: %s", ipStr)
+		}
+		out = append(out, ip)
+	}
+
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+
+	s.changed = true
+
+	return nil
+}
+
+// Type returns a string that uniquely represents this flag's type.
+func (s *ipSliceValue) Type() string {
+	return "ipSlice"
+}
+
+// String defines a "native" format for this net.IP slice flag value.
+func (s *ipSliceValue) String() string {
+
+	ipStrSlice := make([]string, len(*s.value))
+	for i, ip := range *s.value {
+		ipStrSlice[i] = ip.String()
+	}
+
+	out, _ := writeAsCSV(ipStrSlice)
+
+	return "[" + out + "]"
+}
+
+func ipSliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Emtpy string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []net.IP{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]net.IP, len(ss))
+	for i, sval := range ss {
+		ip := net.ParseIP(strings.TrimSpace(sval))
+		if ip == nil {
+			return nil, fmt.Errorf("invalid string being converted to IP address: %s", sval)
+		}
+		out[i] = ip
+	}
+	return out, nil
+}
+
+// GetIPSlice returns the []net.IP value of a flag with the given name
+func (f *FlagSet) GetIPSlice(name string) ([]net.IP, error) {
+	val, err := f.getFlagType(name, "ipSlice", ipSliceConv)
+	if err != nil {
+		return []net.IP{}, err
+	}
+	return val.([]net.IP), nil
+}
+
+// IPSliceVar defines a ipSlice flag with specified name, default value, and usage string.
+// The argument p points to a []net.IP variable in which to store the value of the flag.
+func (f *FlagSet) IPSliceVar(p *[]net.IP, name string, value []net.IP, usage string) {
+	f.VarP(newIPSliceValue(value, p), name, "", usage)
+}
+
+// IPSliceVarP is like IPSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPSliceVarP(p *[]net.IP, name, shorthand string, value []net.IP, usage string) {
+	f.VarP(newIPSliceValue(value, p), name, shorthand, usage)
+}
+
+// IPSliceVar defines a []net.IP flag with specified name, default value, and usage string.
+// The argument p points to a []net.IP variable in which to store the value of the flag.
+func IPSliceVar(p *[]net.IP, name string, value []net.IP, usage string) {
+	CommandLine.VarP(newIPSliceValue(value, p), name, "", usage)
+}
+
+// IPSliceVarP is like IPSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func IPSliceVarP(p *[]net.IP, name, shorthand string, value []net.IP, usage string) {
+	CommandLine.VarP(newIPSliceValue(value, p), name, shorthand, usage)
+}
+
+// IPSlice defines a []net.IP flag with specified name, default value, and usage string.
+// The return value is the address of a []net.IP variable that stores the value of that flag.
+func (f *FlagSet) IPSlice(name string, value []net.IP, usage string) *[]net.IP {
+	p := []net.IP{}
+	f.IPSliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// IPSliceP is like IPSlice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPSliceP(name, shorthand string, value []net.IP, usage string) *[]net.IP {
+	p := []net.IP{}
+	f.IPSliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// IPSlice defines a []net.IP flag with specified name, default value, and usage string.
+// The return value is the address of a []net.IP variable that stores the value of the flag.
+func IPSlice(name string, value []net.IP, usage string) *[]net.IP {
+	return CommandLine.IPSliceP(name, "", value, usage)
+}
+
+// IPSliceP is like IPSlice, but accepts a shorthand letter that can be used after a single dash.
+func IPSliceP(name, shorthand string, value []net.IP, usage string) *[]net.IP {
+	return CommandLine.IPSliceP(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/ipmask.go

@@ -0,0 +1,122 @@
+package pflag
+
+import (
+	"fmt"
+	"net"
+	"strconv"
+)
+
+// -- net.IPMask value
+type ipMaskValue net.IPMask
+
+func newIPMaskValue(val net.IPMask, p *net.IPMask) *ipMaskValue {
+	*p = val
+	return (*ipMaskValue)(p)
+}
+
+func (i *ipMaskValue) String() string { return net.IPMask(*i).String() }
+func (i *ipMaskValue) Set(s string) error {
+	ip := ParseIPv4Mask(s)
+	if ip == nil {
+		return fmt.Errorf("failed to parse IP mask: %q", s)
+	}
+	*i = ipMaskValue(ip)
+	return nil
+}
+
+func (i *ipMaskValue) Type() string {
+	return "ipMask"
+}
+
+// ParseIPv4Mask written in IP form (e.g. 255.255.255.0).
+// This function should really belong to the net package.
+func ParseIPv4Mask(s string) net.IPMask {
+	mask := net.ParseIP(s)
+	if mask == nil {
+		if len(s) != 8 {
+			return nil
+		}
+		// net.IPMask.String() actually outputs things like ffffff00
+		// so write a horrible parser for that as well  :-(
+		m := []int{}
+		for i := 0; i < 4; i++ {
+			b := "0x" + s[2*i:2*i+2]
+			d, err := strconv.ParseInt(b, 0, 0)
+			if err != nil {
+				return nil
+			}
+			m = append(m, int(d))
+		}
+		s := fmt.Sprintf("%d.%d.%d.%d", m[0], m[1], m[2], m[3])
+		mask = net.ParseIP(s)
+		if mask == nil {
+			return nil
+		}
+	}
+	return net.IPv4Mask(mask[12], mask[13], mask[14], mask[15])
+}
+
+func parseIPv4Mask(sval string) (interface{}, error) {
+	mask := ParseIPv4Mask(sval)
+	if mask == nil {
+		return nil, fmt.Errorf("unable to parse %s as net.IPMask", sval)
+	}
+	return mask, nil
+}
+
+// GetIPv4Mask return the net.IPv4Mask value of a flag with the given name
+func (f *FlagSet) GetIPv4Mask(name string) (net.IPMask, error) {
+	val, err := f.getFlagType(name, "ipMask", parseIPv4Mask)
+	if err != nil {
+		return nil, err
+	}
+	return val.(net.IPMask), nil
+}
+
+// IPMaskVar defines an net.IPMask flag with specified name, default value, and usage string.
+// The argument p points to an net.IPMask variable in which to store the value of the flag.
+func (f *FlagSet) IPMaskVar(p *net.IPMask, name string, value net.IPMask, usage string) {
+	f.VarP(newIPMaskValue(value, p), name, "", usage)
+}
+
+// IPMaskVarP is like IPMaskVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPMaskVarP(p *net.IPMask, name, shorthand string, value net.IPMask, usage string) {
+	f.VarP(newIPMaskValue(value, p), name, shorthand, usage)
+}
+
+// IPMaskVar defines an net.IPMask flag with specified name, default value, and usage string.
+// The argument p points to an net.IPMask variable in which to store the value of the flag.
+func IPMaskVar(p *net.IPMask, name string, value net.IPMask, usage string) {
+	CommandLine.VarP(newIPMaskValue(value, p), name, "", usage)
+}
+
+// IPMaskVarP is like IPMaskVar, but accepts a shorthand letter that can be used after a single dash.
+func IPMaskVarP(p *net.IPMask, name, shorthand string, value net.IPMask, usage string) {
+	CommandLine.VarP(newIPMaskValue(value, p), name, shorthand, usage)
+}
+
+// IPMask defines an net.IPMask flag with specified name, default value, and usage string.
+// The return value is the address of an net.IPMask variable that stores the value of the flag.
+func (f *FlagSet) IPMask(name string, value net.IPMask, usage string) *net.IPMask {
+	p := new(net.IPMask)
+	f.IPMaskVarP(p, name, "", value, usage)
+	return p
+}
+
+// IPMaskP is like IPMask, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPMaskP(name, shorthand string, value net.IPMask, usage string) *net.IPMask {
+	p := new(net.IPMask)
+	f.IPMaskVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// IPMask defines an net.IPMask flag with specified name, default value, and usage string.
+// The return value is the address of an net.IPMask variable that stores the value of the flag.
+func IPMask(name string, value net.IPMask, usage string) *net.IPMask {
+	return CommandLine.IPMaskP(name, "", value, usage)
+}
+
+// IPMaskP is like IP, but accepts a shorthand letter that can be used after a single dash.
+func IPMaskP(name, shorthand string, value net.IPMask, usage string) *net.IPMask {
+	return CommandLine.IPMaskP(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/ipnet.go

@@ -0,0 +1,98 @@
+package pflag
+
+import (
+	"fmt"
+	"net"
+	"strings"
+)
+
+// IPNet adapts net.IPNet for use as a flag.
+type ipNetValue net.IPNet
+
+func (ipnet ipNetValue) String() string {
+	n := net.IPNet(ipnet)
+	return n.String()
+}
+
+func (ipnet *ipNetValue) Set(value string) error {
+	_, n, err := net.ParseCIDR(strings.TrimSpace(value))
+	if err != nil {
+		return err
+	}
+	*ipnet = ipNetValue(*n)
+	return nil
+}
+
+func (*ipNetValue) Type() string {
+	return "ipNet"
+}
+
+func newIPNetValue(val net.IPNet, p *net.IPNet) *ipNetValue {
+	*p = val
+	return (*ipNetValue)(p)
+}
+
+func ipNetConv(sval string) (interface{}, error) {
+	_, n, err := net.ParseCIDR(strings.TrimSpace(sval))
+	if err == nil {
+		return *n, nil
+	}
+	return nil, fmt.Errorf("invalid string being converted to IPNet: %s", sval)
+}
+
+// GetIPNet return the net.IPNet value of a flag with the given name
+func (f *FlagSet) GetIPNet(name string) (net.IPNet, error) {
+	val, err := f.getFlagType(name, "ipNet", ipNetConv)
+	if err != nil {
+		return net.IPNet{}, err
+	}
+	return val.(net.IPNet), nil
+}
+
+// IPNetVar defines an net.IPNet flag with specified name, default value, and usage string.
+// The argument p points to an net.IPNet variable in which to store the value of the flag.
+func (f *FlagSet) IPNetVar(p *net.IPNet, name string, value net.IPNet, usage string) {
+	f.VarP(newIPNetValue(value, p), name, "", usage)
+}
+
+// IPNetVarP is like IPNetVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPNetVarP(p *net.IPNet, name, shorthand string, value net.IPNet, usage string) {
+	f.VarP(newIPNetValue(value, p), name, shorthand, usage)
+}
+
+// IPNetVar defines an net.IPNet flag with specified name, default value, and usage string.
+// The argument p points to an net.IPNet variable in which to store the value of the flag.
+func IPNetVar(p *net.IPNet, name string, value net.IPNet, usage string) {
+	CommandLine.VarP(newIPNetValue(value, p), name, "", usage)
+}
+
+// IPNetVarP is like IPNetVar, but accepts a shorthand letter that can be used after a single dash.
+func IPNetVarP(p *net.IPNet, name, shorthand string, value net.IPNet, usage string) {
+	CommandLine.VarP(newIPNetValue(value, p), name, shorthand, usage)
+}
+
+// IPNet defines an net.IPNet flag with specified name, default value, and usage string.
+// The return value is the address of an net.IPNet variable that stores the value of the flag.
+func (f *FlagSet) IPNet(name string, value net.IPNet, usage string) *net.IPNet {
+	p := new(net.IPNet)
+	f.IPNetVarP(p, name, "", value, usage)
+	return p
+}
+
+// IPNetP is like IPNet, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPNetP(name, shorthand string, value net.IPNet, usage string) *net.IPNet {
+	p := new(net.IPNet)
+	f.IPNetVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// IPNet defines an net.IPNet flag with specified name, default value, and usage string.
+// The return value is the address of an net.IPNet variable that stores the value of the flag.
+func IPNet(name string, value net.IPNet, usage string) *net.IPNet {
+	return CommandLine.IPNetP(name, "", value, usage)
+}
+
+// IPNetP is like IPNet, but accepts a shorthand letter that can be used after a single dash.
+func IPNetP(name, shorthand string, value net.IPNet, usage string) *net.IPNet {
+	return CommandLine.IPNetP(name, shorthand, value, usage)
+}