Vendor dependencies

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

Gopkg.lock

@@ -0,0 +1,51 @@
+# 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/sirupsen/logrus"
+  packages = ["."]
+  revision = "d682213848ed68c0a260ca37d6dd5ace8423f5ba"
+  version = "v1.0.4"
+
+[[projects]]
+  name = "github.com/spf13/pflag"
+  packages = ["."]
+  revision = "e57e3eeb33f795204c1ca35f56c44f83227c6e66"
+  version = "v1.0.0"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/crypto"
+  packages = ["ssh/terminal"]
+  revision = "b3c9a1d25cfbbbab0ff4780b71c4f54e6e92a0de"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/sys"
+  packages = ["unix","windows"]
+  revision = "810d7000345868fc619eb81f46307107118f4ae1"
+
+[[projects]]
+  branch = "v2"
+  name = "gopkg.in/validator.v2"
+  packages = ["."]
+  revision = "460c83432a98c35224a6fe352acf8b23e067ad06"
+
+[[projects]]
+  branch = "v2"
+  name = "gopkg.in/yaml.v2"
+  packages = ["."]
+  revision = "d670f9405373e636a5a2765eea47fac0c9bc91a4"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  inputs-digest = "e1a3b44e12695a492ce0fa1d5804ba1a4a69eac786d0518f1b7c360c08dfc52d"
+  solver-name = "gps-cdcl"
+  solver-version = 1

Gopkg.toml

@@ -0,0 +1,33 @@
+# Gopkg.toml example
+#
+# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
+# 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"
+
+
+[[constraint]]
+  name = "github.com/Luzifer/rconfig"
+  version = "1.2.0"
+
+[[constraint]]
+  name = "github.com/sirupsen/logrus"
+  version = "1.0.4"
+
+[[constraint]]
+  branch = "v2"
+  name = "gopkg.in/yaml.v2"

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/bool_test.go

@@ -0,0 +1,70 @@
+package rconfig
+
+import (
+	"os"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Testing bool parsing", func() {
+	type t struct {
+		Test1 bool `default:"true"`
+		Test2 bool `default:"false" flag:"test2"`
+		Test3 bool `default:"true" flag:"test3,t"`
+		Test4 bool `flag:"test4"`
+	}
+
+	var (
+		err  error
+		args []string
+		cfg  t
+	)
+
+	BeforeEach(func() {
+		cfg = t{}
+		args = []string{
+			"--test2",
+			"-t",
+		}
+	})
+
+	JustBeforeEach(func() {
+		err = parse(&cfg, args)
+	})
+
+	It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+	It("should have the expected values", func() {
+		Expect(cfg.Test1).To(Equal(true))
+		Expect(cfg.Test2).To(Equal(true))
+		Expect(cfg.Test3).To(Equal(true))
+		Expect(cfg.Test4).To(Equal(false))
+	})
+})
+
+var _ = Describe("Testing to set bool from ENV with default", func() {
+	type t struct {
+		Test1 bool `default:"true" env:"TEST1"`
+	}
+
+	var (
+		err  error
+		args []string
+		cfg  t
+	)
+
+	BeforeEach(func() {
+		cfg = t{}
+		args = []string{}
+	})
+
+	JustBeforeEach(func() {
+		os.Unsetenv("TEST1")
+		err = parse(&cfg, args)
+	})
+
+	It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+	It("should have the expected values", func() {
+		Expect(cfg.Test1).To(Equal(true))
+	})
+})

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/duration_test.go

@@ -0,0 +1,41 @@
+package rconfig
+
+import (
+	"time"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Duration", func() {
+	type t struct {
+		Test    time.Duration `flag:"duration"`
+		TestS   time.Duration `flag:"other-duration,o"`
+		TestDef time.Duration `default:"30h"`
+	}
+
+	var (
+		err  error
+		args []string
+		cfg  t
+	)
+
+	BeforeEach(func() {
+		cfg = t{}
+		args = []string{
+			"--duration=23s", "-o", "45m",
+		}
+	})
+
+	JustBeforeEach(func() {
+		err = parse(&cfg, args)
+	})
+
+	It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+	It("should have the expected values", func() {
+		Expect(cfg.Test).To(Equal(23 * time.Second))
+		Expect(cfg.TestS).To(Equal(45 * time.Minute))
+
+		Expect(cfg.TestDef).To(Equal(30 * time.Hour))
+	})
+})

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

@@ -0,0 +1,56 @@
+package rconfig
+
+import (
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Testing errors", func() {
+
+	It("should not accept string as int", func() {
+		Expect(parse(&struct {
+			A int `default:"a"`
+		}{}, []string{})).To(HaveOccurred())
+	})
+
+	It("should not accept string as float", func() {
+		Expect(parse(&struct {
+			A float32 `default:"a"`
+		}{}, []string{})).To(HaveOccurred())
+	})
+
+	It("should not accept string as uint", func() {
+		Expect(parse(&struct {
+			A uint `default:"a"`
+		}{}, []string{})).To(HaveOccurred())
+	})
+
+	It("should not accept string as uint in sub-struct", func() {
+		Expect(parse(&struct {
+			B struct {
+				A uint `default:"a"`
+			}
+		}{}, []string{})).To(HaveOccurred())
+	})
+
+	It("should not accept string slice as int slice", func() {
+		Expect(parse(&struct {
+			A []int `default:"a,bn"`
+		}{}, []string{})).To(HaveOccurred())
+	})
+
+	It("should not accept variables not being pointers", func() {
+		cfg := struct {
+			A string `default:"a"`
+		}{}
+
+		Expect(parse(cfg, []string{})).To(HaveOccurred())
+	})
+
+	It("should not accept variables not being pointers to structs", func() {
+		cfg := "test"
+
+		Expect(parse(cfg, []string{})).To(HaveOccurred())
+	})
+
+})

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

@@ -0,0 +1,37 @@
+package rconfig
+
+import (
+	"fmt"
+	"os"
+)
+
+func ExampleParse() {
+	// We're building an example configuration with a sub-struct to be filled
+	// by the Parse command.
+	config := struct {
+		Username string `default:"unknown" flag:"user,u" description:"Your name"`
+		Details  struct {
+			Age int `default:"25" flag:"age" description:"Your age"`
+		}
+	}{}
+
+	// To have more relieable results we're setting os.Args to a known value.
+	// In real-life use cases you wouldn't do this but parse the original
+	// commandline arguments.
+	os.Args = []string{
+		"example",
+		"--user=Luzifer",
+	}
+
+	Parse(&config)
+
+	fmt.Printf("Hello %s, happy birthday for your %dth birthday.",
+		config.Username,
+		config.Details.Age)
+
+	// You can also show an usage message for your user
+	Usage()
+
+	// Output:
+	// Hello Luzifer, happy birthday for your 25th birthday.
+}

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

@@ -0,0 +1,44 @@
+package rconfig
+
+import (
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Testing float parsing", func() {
+	type t struct {
+		Test32  float32 `flag:"float32"`
+		Test32P float32 `flag:"float32p,3"`
+		Test64  float64 `flag:"float64"`
+		Test64P float64 `flag:"float64p,6"`
+		TestDef float32 `default:"66.256"`
+	}
+
+	var (
+		err  error
+		args []string
+		cfg  t
+	)
+
+	BeforeEach(func() {
+		cfg = t{}
+		args = []string{
+			"--float32=5.5", "-3", "6.6",
+			"--float64=7.7", "-6", "8.8",
+		}
+	})
+
+	JustBeforeEach(func() {
+		err = parse(&cfg, args)
+	})
+
+	It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+	It("should have the expected values", func() {
+		Expect(cfg.Test32).To(Equal(float32(5.5)))
+		Expect(cfg.Test32P).To(Equal(float32(6.6)))
+		Expect(cfg.Test64).To(Equal(float64(7.7)))
+		Expect(cfg.Test64P).To(Equal(float64(8.8)))
+
+		Expect(cfg.TestDef).To(Equal(float32(66.256)))
+	})
+})

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

@@ -0,0 +1,128 @@
+package rconfig
+
+import (
+	"os"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Testing general parsing", func() {
+	type t struct {
+		Test        string `default:"foo" env:"shell" flag:"shell" description:"Test"`
+		Test2       string `default:"blub" env:"testvar" flag:"testvar,t" description:"Test"`
+		DefaultFlag string `default:"goo"`
+		SadFlag     string
+	}
+
+	type tValidated struct {
+		Test string `flag:"test" default:"" validate:"nonzero"`
+	}
+
+	var (
+		err  error
+		args []string
+		cfg  t
+	)
+
+	Context("with defined arguments", func() {
+		BeforeEach(func() {
+			cfg = t{}
+			args = []string{
+				"--shell=test23",
+				"-t", "bla",
+			}
+		})
+
+		JustBeforeEach(func() {
+			err = parse(&cfg, args)
+		})
+
+		It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+		It("should have parsed the expected values", func() {
+			Expect(cfg.Test).To(Equal("test23"))
+			Expect(cfg.Test2).To(Equal("bla"))
+			Expect(cfg.SadFlag).To(Equal(""))
+			Expect(cfg.DefaultFlag).To(Equal("goo"))
+		})
+	})
+
+	Context("with no arguments", func() {
+		BeforeEach(func() {
+			cfg = t{}
+			args = []string{}
+		})
+
+		JustBeforeEach(func() {
+			err = parse(&cfg, args)
+		})
+
+		It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+		It("should have used the default value", func() {
+			Expect(cfg.Test).To(Equal("foo"))
+		})
+	})
+
+	Context("with no arguments and set env", func() {
+		BeforeEach(func() {
+			cfg = t{}
+			args = []string{}
+			os.Setenv("shell", "test546")
+		})
+
+		AfterEach(func() {
+			os.Unsetenv("shell")
+		})
+
+		JustBeforeEach(func() {
+			err = parse(&cfg, args)
+		})
+
+		It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+		It("should have used the value from env", func() {
+			Expect(cfg.Test).To(Equal("test546"))
+		})
+	})
+
+	Context("with additional arguments", func() {
+		BeforeEach(func() {
+			cfg = t{}
+			args = []string{
+				"--shell=test23",
+				"-t", "bla",
+				"positional1", "positional2",
+			}
+		})
+
+		JustBeforeEach(func() {
+			err = parse(&cfg, args)
+		})
+
+		It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+		It("should have parsed the expected values", func() {
+			Expect(cfg.Test).To(Equal("test23"))
+			Expect(cfg.Test2).To(Equal("bla"))
+			Expect(cfg.SadFlag).To(Equal(""))
+			Expect(cfg.DefaultFlag).To(Equal("goo"))
+		})
+		It("should have detected the positional arguments", func() {
+			Expect(Args()).To(Equal([]string{"positional1", "positional2"}))
+		})
+	})
+
+	Context("making use of the validator package", func() {
+		var cfgValidated tValidated
+
+		BeforeEach(func() {
+			cfgValidated = tValidated{}
+			args = []string{}
+		})
+
+		JustBeforeEach(func() {
+			err = parseAndValidate(&cfgValidated, args)
+		})
+
+		It("should have errored", func() { Expect(err).To(HaveOccurred()) })
+	})
+
+})

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

@@ -0,0 +1,54 @@
+package rconfig
+
+import (
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Testing int parsing", func() {
+	type t struct {
+		Test    int   `flag:"int"`
+		TestP   int   `flag:"intp,i"`
+		Test8   int8  `flag:"int8"`
+		Test8P  int8  `flag:"int8p,8"`
+		Test32  int32 `flag:"int32"`
+		Test32P int32 `flag:"int32p,3"`
+		Test64  int64 `flag:"int64"`
+		Test64P int64 `flag:"int64p,6"`
+		TestDef int8  `default:"66"`
+	}
+
+	var (
+		err  error
+		args []string
+		cfg  t
+	)
+
+	BeforeEach(func() {
+		cfg = t{}
+		args = []string{
+			"--int=1", "-i", "2",
+			"--int8=3", "-8", "4",
+			"--int32=5", "-3", "6",
+			"--int64=7", "-6", "8",
+		}
+	})
+
+	JustBeforeEach(func() {
+		err = parse(&cfg, args)
+	})
+
+	It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+	It("should have the expected values", func() {
+		Expect(cfg.Test).To(Equal(1))
+		Expect(cfg.TestP).To(Equal(2))
+		Expect(cfg.Test8).To(Equal(int8(3)))
+		Expect(cfg.Test8P).To(Equal(int8(4)))
+		Expect(cfg.Test32).To(Equal(int32(5)))
+		Expect(cfg.Test32P).To(Equal(int32(6)))
+		Expect(cfg.Test64).To(Equal(int64(7)))
+		Expect(cfg.Test64P).To(Equal(int64(8)))
+
+		Expect(cfg.TestDef).To(Equal(int8(66)))
+	})
+})

vendor/github.com/Luzifer/rconfig/os-args_test.go

@@ -0,0 +1,40 @@
+package rconfig_test
+
+import (
+	"os"
+
+	. "github.com/Luzifer/rconfig"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Testing os.Args", func() {
+	type t struct {
+		A string `default:"a" flag:"a"`
+	}
+
+	var (
+		err error
+		cfg t
+	)
+
+	JustBeforeEach(func() {
+		err = Parse(&cfg)
+	})
+
+	Context("With only valid arguments", func() {
+
+		BeforeEach(func() {
+			cfg = t{}
+			os.Args = []string{"--a=bar"}
+		})
+
+		It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+		It("should have the expected values", func() {
+			Expect(cfg.A).To(Equal("bar"))
+		})
+
+	})
+
+})

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

@@ -0,0 +1,87 @@
+package rconfig
+
+import (
+	"os"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Precedence", func() {
+
+	type t struct {
+		A int `default:"1" vardefault:"a" env:"a" flag:"avar,a" description:"a"`
+	}
+
+	var (
+		err         error
+		cfg         t
+		args        []string
+		vardefaults map[string]string
+	)
+
+	JustBeforeEach(func() {
+		cfg = t{}
+		SetVariableDefaults(vardefaults)
+		err = parse(&cfg, args)
+	})
+
+	Context("Provided: Flag, Env, Default, VarDefault", func() {
+		BeforeEach(func() {
+			args = []string{"-a", "5"}
+			os.Setenv("a", "8")
+			vardefaults = map[string]string{
+				"a": "3",
+			}
+		})
+
+		It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+		It("should have used the flag value", func() {
+			Expect(cfg.A).To(Equal(5))
+		})
+	})
+
+	Context("Provided: Env, Default, VarDefault", func() {
+		BeforeEach(func() {
+			args = []string{}
+			os.Setenv("a", "8")
+			vardefaults = map[string]string{
+				"a": "3",
+			}
+		})
+
+		It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+		It("should have used the env value", func() {
+			Expect(cfg.A).To(Equal(8))
+		})
+	})
+
+	Context("Provided: Default, VarDefault", func() {
+		BeforeEach(func() {
+			args = []string{}
+			os.Unsetenv("a")
+			vardefaults = map[string]string{
+				"a": "3",
+			}
+		})
+
+		It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+		It("should have used the vardefault value", func() {
+			Expect(cfg.A).To(Equal(3))
+		})
+	})
+
+	Context("Provided: Default", func() {
+		BeforeEach(func() {
+			args = []string{}
+			os.Unsetenv("a")
+			vardefaults = map[string]string{}
+		})
+
+		It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+		It("should have used the default value", func() {
+			Expect(cfg.A).To(Equal(1))
+		})
+	})
+
+})

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

@@ -0,0 +1,13 @@
+package rconfig_test
+
+import (
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+
+	"testing"
+)
+
+func TestRconfig(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "Rconfig Suite")
+}

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

@@ -0,0 +1,51 @@
+package rconfig
+
+import (
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Testing slices", func() {
+	type t struct {
+		Int     []int    `default:"1,2,3" flag:"int"`
+		String  []string `default:"a,b,c" flag:"string"`
+		IntP    []int    `default:"1,2,3" flag:"intp,i"`
+		StringP []string `default:"a,b,c" flag:"stringp,s"`
+	}
+
+	var (
+		err  error
+		args []string
+		cfg  t
+	)
+
+	BeforeEach(func() {
+		cfg = t{}
+		args = []string{
+			"--int=4,5", "-s", "hallo,welt",
+		}
+	})
+
+	JustBeforeEach(func() {
+		err = parse(&cfg, args)
+	})
+
+	It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+	It("should have the expected values for int-slice", func() {
+		Expect(len(cfg.Int)).To(Equal(2))
+		Expect(cfg.Int).To(Equal([]int{4, 5}))
+		Expect(cfg.Int).NotTo(Equal([]int{5, 4}))
+	})
+	It("should have the expected values for int-shorthand-slice", func() {
+		Expect(len(cfg.IntP)).To(Equal(3))
+		Expect(cfg.IntP).To(Equal([]int{1, 2, 3}))
+	})
+	It("should have the expected values for string-slice", func() {
+		Expect(len(cfg.String)).To(Equal(3))
+		Expect(cfg.String).To(Equal([]string{"a", "b", "c"}))
+	})
+	It("should have the expected values for string-shorthand-slice", func() {
+		Expect(len(cfg.StringP)).To(Equal(2))
+		Expect(cfg.StringP).To(Equal([]string{"hallo", "welt"}))
+	})
+})

vendor/github.com/Luzifer/rconfig/sub-struct_test.go

@@ -0,0 +1,36 @@
+package rconfig
+
+import (
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Testing sub-structs", func() {
+	type t struct {
+		Test string `default:"blubb"`
+		Sub  struct {
+			Test string `default:"Hallo"`
+		}
+	}
+
+	var (
+		err  error
+		args []string
+		cfg  t
+	)
+
+	BeforeEach(func() {
+		cfg = t{}
+		args = []string{}
+	})
+
+	JustBeforeEach(func() {
+		err = parse(&cfg, args)
+	})
+
+	It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+	It("should have the expected values", func() {
+		Expect(cfg.Test).To(Equal("blubb"))
+		Expect(cfg.Sub.Test).To(Equal("Hallo"))
+	})
+})

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

@@ -0,0 +1,59 @@
+package rconfig
+
+import (
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Testing uint parsing", func() {
+	type t struct {
+		Test    uint   `flag:"int"`
+		TestP   uint   `flag:"intp,i"`
+		Test8   uint8  `flag:"int8"`
+		Test8P  uint8  `flag:"int8p,8"`
+		Test16  uint16 `flag:"int16"`
+		Test16P uint16 `flag:"int16p,1"`
+		Test32  uint32 `flag:"int32"`
+		Test32P uint32 `flag:"int32p,3"`
+		Test64  uint64 `flag:"int64"`
+		Test64P uint64 `flag:"int64p,6"`
+		TestDef uint8  `default:"66"`
+	}
+
+	var (
+		err  error
+		args []string
+		cfg  t
+	)
+
+	BeforeEach(func() {
+		cfg = t{}
+		args = []string{
+			"--int=1", "-i", "2",
+			"--int8=3", "-8", "4",
+			"--int32=5", "-3", "6",
+			"--int64=7", "-6", "8",
+			"--int16=9", "-1", "10",
+		}
+	})
+
+	JustBeforeEach(func() {
+		err = parse(&cfg, args)
+	})
+
+	It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+	It("should have the expected values", func() {
+		Expect(cfg.Test).To(Equal(uint(1)))
+		Expect(cfg.TestP).To(Equal(uint(2)))
+		Expect(cfg.Test8).To(Equal(uint8(3)))
+		Expect(cfg.Test8P).To(Equal(uint8(4)))
+		Expect(cfg.Test32).To(Equal(uint32(5)))
+		Expect(cfg.Test32P).To(Equal(uint32(6)))
+		Expect(cfg.Test64).To(Equal(uint64(7)))
+		Expect(cfg.Test64P).To(Equal(uint64(8)))
+		Expect(cfg.Test16).To(Equal(uint16(9)))
+		Expect(cfg.Test16P).To(Equal(uint16(10)))
+
+		Expect(cfg.TestDef).To(Equal(uint8(66)))
+	})
+})

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/Luzifer/rconfig/vardefault_test.go

@@ -0,0 +1,122 @@
+package rconfig
+
+import (
+	"io/ioutil"
+	"os"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Testing variable defaults", func() {
+
+	type t struct {
+		MySecretValue string `default:"secret" env:"foo" vardefault:"my_secret_value"`
+		MyUsername    string `default:"luzifer" vardefault:"username"`
+		SomeVar       string `flag:"var" description:"some variable"`
+		IntVar        int64  `vardefault:"int_var" default:"23"`
+	}
+
+	var (
+		err         error
+		cfg         t
+		args        = []string{}
+		vardefaults = map[string]string{
+			"my_secret_value": "veryverysecretkey",
+			"unkownkey":       "hi there",
+			"int_var":         "42",
+		}
+	)
+
+	BeforeEach(func() {
+		cfg = t{}
+	})
+
+	JustBeforeEach(func() {
+		err = parse(&cfg, args)
+	})
+
+	Context("With manually provided variables", func() {
+		BeforeEach(func() {
+			SetVariableDefaults(vardefaults)
+		})
+
+		It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+		It("should have the expected values", func() {
+			Expect(cfg.IntVar).To(Equal(int64(42)))
+			Expect(cfg.MySecretValue).To(Equal("veryverysecretkey"))
+			Expect(cfg.MyUsername).To(Equal("luzifer"))
+			Expect(cfg.SomeVar).To(Equal(""))
+		})
+	})
+
+	Context("With defaults from YAML data", func() {
+		BeforeEach(func() {
+			yamlData := []byte("---\nmy_secret_value: veryverysecretkey\nunknownkey: hi there\nint_var: 42\n")
+			SetVariableDefaults(VarDefaultsFromYAML(yamlData))
+		})
+
+		It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+		It("should have the expected values", func() {
+			Expect(cfg.IntVar).To(Equal(int64(42)))
+			Expect(cfg.MySecretValue).To(Equal("veryverysecretkey"))
+			Expect(cfg.MyUsername).To(Equal("luzifer"))
+			Expect(cfg.SomeVar).To(Equal(""))
+		})
+	})
+
+	Context("With defaults from YAML file", func() {
+		var tmp *os.File
+
+		BeforeEach(func() {
+			tmp, _ = ioutil.TempFile("", "")
+			yamlData := "---\nmy_secret_value: veryverysecretkey\nunknownkey: hi there\nint_var: 42\n"
+			tmp.WriteString(yamlData)
+			SetVariableDefaults(VarDefaultsFromYAMLFile(tmp.Name()))
+		})
+
+		AfterEach(func() {
+			tmp.Close()
+			os.Remove(tmp.Name())
+		})
+
+		It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+		It("should have the expected values", func() {
+			Expect(cfg.IntVar).To(Equal(int64(42)))
+			Expect(cfg.MySecretValue).To(Equal("veryverysecretkey"))
+			Expect(cfg.MyUsername).To(Equal("luzifer"))
+			Expect(cfg.SomeVar).To(Equal(""))
+		})
+	})
+
+	Context("With defaults from invalid YAML data", func() {
+		BeforeEach(func() {
+			yamlData := []byte("---\nmy_secret_value = veryverysecretkey\nunknownkey = hi there\nint_var = 42\n")
+			SetVariableDefaults(VarDefaultsFromYAML(yamlData))
+		})
+
+		It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+		It("should have the expected values", func() {
+			Expect(cfg.IntVar).To(Equal(int64(23)))
+			Expect(cfg.MySecretValue).To(Equal("secret"))
+			Expect(cfg.MyUsername).To(Equal("luzifer"))
+			Expect(cfg.SomeVar).To(Equal(""))
+		})
+	})
+
+	Context("With defaults from non existent YAML file", func() {
+		BeforeEach(func() {
+			file := "/tmp/this_file_should_not_exist_146e26723r"
+			SetVariableDefaults(VarDefaultsFromYAMLFile(file))
+		})
+
+		It("should not have errored", func() { Expect(err).NotTo(HaveOccurred()) })
+		It("should have the expected values", func() {
+			Expect(cfg.IntVar).To(Equal(int64(23)))
+			Expect(cfg.MySecretValue).To(Equal("secret"))
+			Expect(cfg.MyUsername).To(Equal("luzifer"))
+			Expect(cfg.SomeVar).To(Equal(""))
+		})
+	})
+
+})

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 +1,118 @@
+# 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 +1,509 @@
+# 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 "aibrake"
+  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) |
+| [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 |
+| [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/alt_exit_test.go

@@ -0,0 +1,83 @@
+package logrus
+
+import (
+	"io/ioutil"
+	"log"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"testing"
+	"time"
+)
+
+func TestRegister(t *testing.T) {
+	current := len(handlers)
+	RegisterExitHandler(func() {})
+	if len(handlers) != current+1 {
+		t.Fatalf("expected %d handlers, got %d", current+1, len(handlers))
+	}
+}
+
+func TestHandler(t *testing.T) {
+	tempDir, err := ioutil.TempDir("", "test_handler")
+	if err != nil {
+		log.Fatalf("can't create temp dir. %q", err)
+	}
+	defer os.RemoveAll(tempDir)
+
+	gofile := filepath.Join(tempDir, "gofile.go")
+	if err := ioutil.WriteFile(gofile, testprog, 0666); err != nil {
+		t.Fatalf("can't create go file. %q", err)
+	}
+
+	outfile := filepath.Join(tempDir, "outfile.out")
+	arg := time.Now().UTC().String()
+	err = exec.Command("go", "run", gofile, outfile, arg).Run()
+	if err == nil {
+		t.Fatalf("completed normally, should have failed")
+	}
+
+	data, err := ioutil.ReadFile(outfile)
+	if err != nil {
+		t.Fatalf("can't read output file %s. %q", outfile, err)
+	}
+
+	if string(data) != arg {
+		t.Fatalf("bad data. Expected %q, got %q", data, arg)
+	}
+}
+
+var testprog = []byte(`
+// Test program for atexit, gets output file and data as arguments and writes
+// data to output file in atexit handler.
+package main
+
+import (
+	"github.com/sirupsen/logrus"
+	"flag"
+	"fmt"
+	"io/ioutil"
+)
+
+var outfile = ""
+var data = ""
+
+func handler() {
+	ioutil.WriteFile(outfile, []byte(data), 0666)
+}
+
+func badHandler() {
+	n := 0
+	fmt.Println(1/n)
+}
+
+func main() {
+	flag.Parse()
+	outfile = flag.Arg(0)
+	data = flag.Arg(1)
+
+	logrus.RegisterExitHandler(handler)
+	logrus.RegisterExitHandler(badHandler)
+	logrus.Fatal("Bye bye")
+}
+`)

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 +1,279 @@
+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.Logger.mu.Lock()
+	err := entry.Logger.Hooks.Fire(level, &entry)
+	entry.Logger.mu.Unlock()
+	if err != nil {
+		entry.Logger.mu.Lock()
+		fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err)
+		entry.Logger.mu.Unlock()
+	}
+	buffer = bufferPool.Get().(*bytes.Buffer)
+	buffer.Reset()
+	defer bufferPool.Put(buffer)
+	entry.Buffer = buffer
+	serialized, err := entry.Logger.Formatter.Format(&entry)
+	entry.Buffer = nil
+	if err != nil {
+		entry.Logger.mu.Lock()
+		fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err)
+		entry.Logger.mu.Unlock()
+	} else {
+		entry.Logger.mu.Lock()
+		_, err = entry.Logger.Out.Write(serialized)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
+		}
+		entry.Logger.mu.Unlock()
+	}
+
+	// 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)
+	}
+}
+
+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/entry_test.go

@@ -0,0 +1,77 @@
+package logrus
+
+import (
+	"bytes"
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestEntryWithError(t *testing.T) {
+
+	assert := assert.New(t)
+
+	defer func() {
+		ErrorKey = "error"
+	}()
+
+	err := fmt.Errorf("kaboom at layer %d", 4711)
+
+	assert.Equal(err, WithError(err).Data["error"])
+
+	logger := New()
+	logger.Out = &bytes.Buffer{}
+	entry := NewEntry(logger)
+
+	assert.Equal(err, entry.WithError(err).Data["error"])
+
+	ErrorKey = "err"
+
+	assert.Equal(err, entry.WithError(err).Data["err"])
+
+}
+
+func TestEntryPanicln(t *testing.T) {
+	errBoom := fmt.Errorf("boom time")
+
+	defer func() {
+		p := recover()
+		assert.NotNil(t, p)
+
+		switch pVal := p.(type) {
+		case *Entry:
+			assert.Equal(t, "kaboom", pVal.Message)
+			assert.Equal(t, errBoom, pVal.Data["err"])
+		default:
+			t.Fatalf("want type *Entry, got %T: %#v", pVal, pVal)
+		}
+	}()
+
+	logger := New()
+	logger.Out = &bytes.Buffer{}
+	entry := NewEntry(logger)
+	entry.WithField("err", errBoom).Panicln("kaboom")
+}
+
+func TestEntryPanicf(t *testing.T) {
+	errBoom := fmt.Errorf("boom again")
+
+	defer func() {
+		p := recover()
+		assert.NotNil(t, p)
+
+		switch pVal := p.(type) {
+		case *Entry:
+			assert.Equal(t, "kaboom true", pVal.Message)
+			assert.Equal(t, errBoom, pVal.Data["err"])
+		default:
+			t.Fatalf("want type *Entry, got %T: %#v", pVal, pVal)
+		}
+	}()
+
+	logger := New()
+	logger.Out = &bytes.Buffer{}
+	entry := NewEntry(logger)
+	entry.WithField("err", errBoom).Panicf("kaboom %v", true)
+}

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

@@ -0,0 +1,69 @@
+package logrus_test
+
+import (
+	"github.com/sirupsen/logrus"
+	"os"
+)
+
+func Example_basic() {
+	var log = logrus.New()
+	log.Formatter = new(logrus.JSONFormatter)
+	log.Formatter = new(logrus.TextFormatter)                     //default
+	log.Formatter.(*logrus.TextFormatter).DisableTimestamp = true // remove timestamp from test output
+	log.Level = logrus.DebugLevel
+	log.Out = os.Stdout
+
+	// 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")
+	// }
+
+	defer func() {
+		err := recover()
+		if err != nil {
+			entry := err.(*logrus.Entry)
+			log.WithFields(logrus.Fields{
+				"omg":         true,
+				"err_animal":  entry.Data["animal"],
+				"err_size":    entry.Data["size"],
+				"err_level":   entry.Level,
+				"err_message": entry.Message,
+				"number":      100,
+			}).Error("The ice breaks!") // or use Fatal() to force the process to exit with a nonzero code
+		}
+	}()
+
+	log.WithFields(logrus.Fields{
+		"animal": "walrus",
+		"number": 8,
+	}).Debug("Started observing beach")
+
+	log.WithFields(logrus.Fields{
+		"animal": "walrus",
+		"size":   10,
+	}).Info("A group of walrus emerges from the ocean")
+
+	log.WithFields(logrus.Fields{
+		"omg":    true,
+		"number": 122,
+	}).Warn("The group's number increased tremendously!")
+
+	log.WithFields(logrus.Fields{
+		"temperature": -4,
+	}).Debug("Temperature changes")
+
+	log.WithFields(logrus.Fields{
+		"animal": "orca",
+		"size":   9009,
+	}).Panic("It's over 9000!")
+
+	// Output:
+	// level=debug msg="Started observing beach" animal=walrus number=8
+	// level=info msg="A group of walrus emerges from the ocean" animal=walrus size=10
+	// level=warning msg="The group's number increased tremendously!" number=122 omg=true
+	// level=debug msg="Temperature changes" temperature=-4
+	// level=panic msg="It's over 9000!" animal=orca size=9009
+	// level=error msg="The ice breaks!" err_animal=orca err_level=panic err_message="It's over 9000!" err_size=9009 number=100 omg=true
+}

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

@@ -0,0 +1,35 @@
+package logrus_test
+
+import (
+	"github.com/sirupsen/logrus"
+	"gopkg.in/gemnasium/logrus-airbrake-hook.v2"
+	"os"
+)
+
+func Example_hook() {
+	var log = logrus.New()
+	log.Formatter = new(logrus.TextFormatter)                     // default
+	log.Formatter.(*logrus.TextFormatter).DisableTimestamp = true // remove timestamp from test output
+	log.Hooks.Add(airbrake.NewHook(123, "xyz", "development"))
+	log.Out = os.Stdout
+
+	log.WithFields(logrus.Fields{
+		"animal": "walrus",
+		"size":   10,
+	}).Info("A group of walrus emerges from the ocean")
+
+	log.WithFields(logrus.Fields{
+		"omg":    true,
+		"number": 122,
+	}).Warn("The group's number increased tremendously!")
+
+	log.WithFields(logrus.Fields{
+		"omg":    true,
+		"number": 100,
+	}).Error("The ice breaks!")
+
+	// Output:
+	// level=info msg="A group of walrus emerges from the ocean" animal=walrus size=10
+	// level=warning msg="The group's number increased tremendously!" number=122 omg=true
+	// level=error msg="The ice breaks!" number=100 omg=true
+}

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/formatter_bench_test.go

@@ -0,0 +1,101 @@
+package logrus
+
+import (
+	"fmt"
+	"testing"
+	"time"
+)
+
+// smallFields is a small size data set for benchmarking
+var smallFields = Fields{
+	"foo":   "bar",
+	"baz":   "qux",
+	"one":   "two",
+	"three": "four",
+}
+
+// largeFields is a large size data set for benchmarking
+var largeFields = Fields{
+	"foo":       "bar",
+	"baz":       "qux",
+	"one":       "two",
+	"three":     "four",
+	"five":      "six",
+	"seven":     "eight",
+	"nine":      "ten",
+	"eleven":    "twelve",
+	"thirteen":  "fourteen",
+	"fifteen":   "sixteen",
+	"seventeen": "eighteen",
+	"nineteen":  "twenty",
+	"a":         "b",
+	"c":         "d",
+	"e":         "f",
+	"g":         "h",
+	"i":         "j",
+	"k":         "l",
+	"m":         "n",
+	"o":         "p",
+	"q":         "r",
+	"s":         "t",
+	"u":         "v",
+	"w":         "x",
+	"y":         "z",
+	"this":      "will",
+	"make":      "thirty",
+	"entries":   "yeah",
+}
+
+var errorFields = Fields{
+	"foo": fmt.Errorf("bar"),
+	"baz": fmt.Errorf("qux"),
+}
+
+func BenchmarkErrorTextFormatter(b *testing.B) {
+	doBenchmark(b, &TextFormatter{DisableColors: true}, errorFields)
+}
+
+func BenchmarkSmallTextFormatter(b *testing.B) {
+	doBenchmark(b, &TextFormatter{DisableColors: true}, smallFields)
+}
+
+func BenchmarkLargeTextFormatter(b *testing.B) {
+	doBenchmark(b, &TextFormatter{DisableColors: true}, largeFields)
+}
+
+func BenchmarkSmallColoredTextFormatter(b *testing.B) {
+	doBenchmark(b, &TextFormatter{ForceColors: true}, smallFields)
+}
+
+func BenchmarkLargeColoredTextFormatter(b *testing.B) {
+	doBenchmark(b, &TextFormatter{ForceColors: true}, largeFields)
+}
+
+func BenchmarkSmallJSONFormatter(b *testing.B) {
+	doBenchmark(b, &JSONFormatter{}, smallFields)
+}
+
+func BenchmarkLargeJSONFormatter(b *testing.B) {
+	doBenchmark(b, &JSONFormatter{}, largeFields)
+}
+
+func doBenchmark(b *testing.B, formatter Formatter, fields Fields) {
+	logger := New()
+
+	entry := &Entry{
+		Time:    time.Time{},
+		Level:   InfoLevel,
+		Message: "message",
+		Data:    fields,
+		Logger:  logger,
+	}
+	var d []byte
+	var err error
+	for i := 0; i < b.N; i++ {
+		d, err = formatter.Format(entry)
+		if err != nil {
+			b.Fatal(err)
+		}
+		b.SetBytes(int64(len(d)))
+	}
+}

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

@@ -0,0 +1,144 @@
+package logrus
+
+import (
+	"sync"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+type TestHook struct {
+	Fired bool
+}
+
+func (hook *TestHook) Fire(entry *Entry) error {
+	hook.Fired = true
+	return nil
+}
+
+func (hook *TestHook) Levels() []Level {
+	return []Level{
+		DebugLevel,
+		InfoLevel,
+		WarnLevel,
+		ErrorLevel,
+		FatalLevel,
+		PanicLevel,
+	}
+}
+
+func TestHookFires(t *testing.T) {
+	hook := new(TestHook)
+
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.Hooks.Add(hook)
+		assert.Equal(t, hook.Fired, false)
+
+		log.Print("test")
+	}, func(fields Fields) {
+		assert.Equal(t, hook.Fired, true)
+	})
+}
+
+type ModifyHook struct {
+}
+
+func (hook *ModifyHook) Fire(entry *Entry) error {
+	entry.Data["wow"] = "whale"
+	return nil
+}
+
+func (hook *ModifyHook) Levels() []Level {
+	return []Level{
+		DebugLevel,
+		InfoLevel,
+		WarnLevel,
+		ErrorLevel,
+		FatalLevel,
+		PanicLevel,
+	}
+}
+
+func TestHookCanModifyEntry(t *testing.T) {
+	hook := new(ModifyHook)
+
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.Hooks.Add(hook)
+		log.WithField("wow", "elephant").Print("test")
+	}, func(fields Fields) {
+		assert.Equal(t, fields["wow"], "whale")
+	})
+}
+
+func TestCanFireMultipleHooks(t *testing.T) {
+	hook1 := new(ModifyHook)
+	hook2 := new(TestHook)
+
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.Hooks.Add(hook1)
+		log.Hooks.Add(hook2)
+
+		log.WithField("wow", "elephant").Print("test")
+	}, func(fields Fields) {
+		assert.Equal(t, fields["wow"], "whale")
+		assert.Equal(t, hook2.Fired, true)
+	})
+}
+
+type ErrorHook struct {
+	Fired bool
+}
+
+func (hook *ErrorHook) Fire(entry *Entry) error {
+	hook.Fired = true
+	return nil
+}
+
+func (hook *ErrorHook) Levels() []Level {
+	return []Level{
+		ErrorLevel,
+	}
+}
+
+func TestErrorHookShouldntFireOnInfo(t *testing.T) {
+	hook := new(ErrorHook)
+
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.Hooks.Add(hook)
+		log.Info("test")
+	}, func(fields Fields) {
+		assert.Equal(t, hook.Fired, false)
+	})
+}
+
+func TestErrorHookShouldFireOnError(t *testing.T) {
+	hook := new(ErrorHook)
+
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.Hooks.Add(hook)
+		log.Error("test")
+	}, func(fields Fields) {
+		assert.Equal(t, hook.Fired, true)
+	})
+}
+
+func TestAddHookRace(t *testing.T) {
+	var wg sync.WaitGroup
+	wg.Add(2)
+	hook := new(ErrorHook)
+	LogAndAssertJSON(t, func(log *Logger) {
+		go func() {
+			defer wg.Done()
+			log.AddHook(hook)
+		}()
+		go func() {
+			defer wg.Done()
+			log.Error("test")
+		}()
+		wg.Wait()
+	}, func(fields Fields) {
+		// the line may have been logged
+		// before the hook was added, so we can't
+		// actually assert on the hook
+	})
+}

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/hooks/syslog/README.md

@@ -0,0 +1,39 @@
+# Syslog Hooks for Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/>
+
+## Usage
+
+```go
+import (
+  "log/syslog"
+  "github.com/sirupsen/logrus"
+  lSyslog "github.com/sirupsen/logrus/hooks/syslog"
+)
+
+func main() {
+  log       := logrus.New()
+  hook, err := lSyslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
+
+  if err == nil {
+    log.Hooks.Add(hook)
+  }
+}
+```
+
+If you want to connect to local syslog (Ex. "/dev/log" or "/var/run/syslog" or "/var/run/log"). Just assign empty string to the first two parameters of `NewSyslogHook`. It should look like the following.
+
+```go
+import (
+  "log/syslog"
+  "github.com/sirupsen/logrus"
+  lSyslog "github.com/sirupsen/logrus/hooks/syslog"
+)
+
+func main() {
+  log       := logrus.New()
+  hook, err := lSyslog.NewSyslogHook("", "", syslog.LOG_INFO, "")
+
+  if err == nil {
+    log.Hooks.Add(hook)
+  }
+}
+```

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

@@ -0,0 +1,55 @@
+// +build !windows,!nacl,!plan9
+
+package syslog
+
+import (
+	"fmt"
+	"log/syslog"
+	"os"
+
+	"github.com/sirupsen/logrus"
+)
+
+// SyslogHook to send logs via syslog.
+type SyslogHook struct {
+	Writer        *syslog.Writer
+	SyslogNetwork string
+	SyslogRaddr   string
+}
+
+// Creates a hook to be added to an instance of logger. This is called with
+// `hook, err := NewSyslogHook("udp", "localhost:514", syslog.LOG_DEBUG, "")`
+// `if err == nil { log.Hooks.Add(hook) }`
+func NewSyslogHook(network, raddr string, priority syslog.Priority, tag string) (*SyslogHook, error) {
+	w, err := syslog.Dial(network, raddr, priority, tag)
+	return &SyslogHook{w, network, raddr}, err
+}
+
+func (hook *SyslogHook) Fire(entry *logrus.Entry) error {
+	line, err := entry.String()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Unable to read entry, %v", err)
+		return err
+	}
+
+	switch entry.Level {
+	case logrus.PanicLevel:
+		return hook.Writer.Crit(line)
+	case logrus.FatalLevel:
+		return hook.Writer.Crit(line)
+	case logrus.ErrorLevel:
+		return hook.Writer.Err(line)
+	case logrus.WarnLevel:
+		return hook.Writer.Warning(line)
+	case logrus.InfoLevel:
+		return hook.Writer.Info(line)
+	case logrus.DebugLevel:
+		return hook.Writer.Debug(line)
+	default:
+		return nil
+	}
+}
+
+func (hook *SyslogHook) Levels() []logrus.Level {
+	return logrus.AllLevels
+}

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

@@ -0,0 +1,27 @@
+package syslog
+
+import (
+	"log/syslog"
+	"testing"
+
+	"github.com/sirupsen/logrus"
+)
+
+func TestLocalhostAddAndPrint(t *testing.T) {
+	log := logrus.New()
+	hook, err := NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
+
+	if err != nil {
+		t.Errorf("Unable to connect to local syslog.")
+	}
+
+	log.Hooks.Add(hook)
+
+	for _, level := range hook.Levels() {
+		if len(log.Hooks[level]) != 1 {
+			t.Errorf("SyslogHook was not added. The length of log.Hooks[%v]: %v", level, len(log.Hooks[level]))
+		}
+	}
+
+	log.Info("Congratulations!")
+}

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

@@ -0,0 +1,95 @@
+// The Test package is used for testing logrus. It is here for backwards
+// compatibility from when logrus' organization was upper-case. Please use
+// lower-case logrus and the `null` package instead of this one.
+package test
+
+import (
+	"io/ioutil"
+	"sync"
+
+	"github.com/sirupsen/logrus"
+)
+
+// Hook is a hook designed for dealing with logs in test scenarios.
+type Hook struct {
+	// Entries is an array of all entries that have been received by this hook.
+	// For safe access, use the AllEntries() method, rather than reading this
+	// value directly.
+	Entries []*logrus.Entry
+	mu      sync.RWMutex
+}
+
+// NewGlobal installs a test hook for the global logger.
+func NewGlobal() *Hook {
+
+	hook := new(Hook)
+	logrus.AddHook(hook)
+
+	return hook
+
+}
+
+// NewLocal installs a test hook for a given local logger.
+func NewLocal(logger *logrus.Logger) *Hook {
+
+	hook := new(Hook)
+	logger.Hooks.Add(hook)
+
+	return hook
+
+}
+
+// NewNullLogger creates a discarding logger and installs the test hook.
+func NewNullLogger() (*logrus.Logger, *Hook) {
+
+	logger := logrus.New()
+	logger.Out = ioutil.Discard
+
+	return logger, NewLocal(logger)
+
+}
+
+func (t *Hook) Fire(e *logrus.Entry) error {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	t.Entries = append(t.Entries, e)
+	return nil
+}
+
+func (t *Hook) Levels() []logrus.Level {
+	return logrus.AllLevels
+}
+
+// LastEntry returns the last entry that was logged or nil.
+func (t *Hook) LastEntry() *logrus.Entry {
+	t.mu.RLock()
+	defer t.mu.RUnlock()
+	i := len(t.Entries) - 1
+	if i < 0 {
+		return nil
+	}
+	// Make a copy, for safety
+	e := *t.Entries[i]
+	return &e
+}
+
+// AllEntries returns all entries that were logged.
+func (t *Hook) AllEntries() []*logrus.Entry {
+	t.mu.RLock()
+	defer t.mu.RUnlock()
+	// Make a copy so the returned value won't race with future log requests
+	entries := make([]*logrus.Entry, len(t.Entries))
+	for i, entry := range t.Entries {
+		// Make a copy, for safety
+		e := *entry
+		entries[i] = &e
+	}
+	return entries
+}
+
+// Reset removes all Entries from this test hook.
+func (t *Hook) Reset() {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	t.Entries = make([]*logrus.Entry, 0)
+}

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

@@ -0,0 +1,39 @@
+package test
+
+import (
+	"testing"
+
+	"github.com/sirupsen/logrus"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAllHooks(t *testing.T) {
+
+	assert := assert.New(t)
+
+	logger, hook := NewNullLogger()
+	assert.Nil(hook.LastEntry())
+	assert.Equal(0, len(hook.Entries))
+
+	logger.Error("Hello error")
+	assert.Equal(logrus.ErrorLevel, hook.LastEntry().Level)
+	assert.Equal("Hello error", hook.LastEntry().Message)
+	assert.Equal(1, len(hook.Entries))
+
+	logger.Warn("Hello warning")
+	assert.Equal(logrus.WarnLevel, hook.LastEntry().Level)
+	assert.Equal("Hello warning", hook.LastEntry().Message)
+	assert.Equal(2, len(hook.Entries))
+
+	hook.Reset()
+	assert.Nil(hook.LastEntry())
+	assert.Equal(0, len(hook.Entries))
+
+	hook = NewGlobal()
+
+	logrus.Error("Hello error")
+	assert.Equal(logrus.ErrorLevel, hook.LastEntry().Level)
+	assert.Equal("Hello error", hook.LastEntry().Message)
+	assert.Equal(1, len(hook.Entries))
+
+}

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/json_formatter_test.go

@@ -0,0 +1,199 @@
+package logrus
+
+import (
+	"encoding/json"
+	"errors"
+	"strings"
+	"testing"
+)
+
+func TestErrorNotLost(t *testing.T) {
+	formatter := &JSONFormatter{}
+
+	b, err := formatter.Format(WithField("error", errors.New("wild walrus")))
+	if err != nil {
+		t.Fatal("Unable to format entry: ", err)
+	}
+
+	entry := make(map[string]interface{})
+	err = json.Unmarshal(b, &entry)
+	if err != nil {
+		t.Fatal("Unable to unmarshal formatted entry: ", err)
+	}
+
+	if entry["error"] != "wild walrus" {
+		t.Fatal("Error field not set")
+	}
+}
+
+func TestErrorNotLostOnFieldNotNamedError(t *testing.T) {
+	formatter := &JSONFormatter{}
+
+	b, err := formatter.Format(WithField("omg", errors.New("wild walrus")))
+	if err != nil {
+		t.Fatal("Unable to format entry: ", err)
+	}
+
+	entry := make(map[string]interface{})
+	err = json.Unmarshal(b, &entry)
+	if err != nil {
+		t.Fatal("Unable to unmarshal formatted entry: ", err)
+	}
+
+	if entry["omg"] != "wild walrus" {
+		t.Fatal("Error field not set")
+	}
+}
+
+func TestFieldClashWithTime(t *testing.T) {
+	formatter := &JSONFormatter{}
+
+	b, err := formatter.Format(WithField("time", "right now!"))
+	if err != nil {
+		t.Fatal("Unable to format entry: ", err)
+	}
+
+	entry := make(map[string]interface{})
+	err = json.Unmarshal(b, &entry)
+	if err != nil {
+		t.Fatal("Unable to unmarshal formatted entry: ", err)
+	}
+
+	if entry["fields.time"] != "right now!" {
+		t.Fatal("fields.time not set to original time field")
+	}
+
+	if entry["time"] != "0001-01-01T00:00:00Z" {
+		t.Fatal("time field not set to current time, was: ", entry["time"])
+	}
+}
+
+func TestFieldClashWithMsg(t *testing.T) {
+	formatter := &JSONFormatter{}
+
+	b, err := formatter.Format(WithField("msg", "something"))
+	if err != nil {
+		t.Fatal("Unable to format entry: ", err)
+	}
+
+	entry := make(map[string]interface{})
+	err = json.Unmarshal(b, &entry)
+	if err != nil {
+		t.Fatal("Unable to unmarshal formatted entry: ", err)
+	}
+
+	if entry["fields.msg"] != "something" {
+		t.Fatal("fields.msg not set to original msg field")
+	}
+}
+
+func TestFieldClashWithLevel(t *testing.T) {
+	formatter := &JSONFormatter{}
+
+	b, err := formatter.Format(WithField("level", "something"))
+	if err != nil {
+		t.Fatal("Unable to format entry: ", err)
+	}
+
+	entry := make(map[string]interface{})
+	err = json.Unmarshal(b, &entry)
+	if err != nil {
+		t.Fatal("Unable to unmarshal formatted entry: ", err)
+	}
+
+	if entry["fields.level"] != "something" {
+		t.Fatal("fields.level not set to original level field")
+	}
+}
+
+func TestJSONEntryEndsWithNewline(t *testing.T) {
+	formatter := &JSONFormatter{}
+
+	b, err := formatter.Format(WithField("level", "something"))
+	if err != nil {
+		t.Fatal("Unable to format entry: ", err)
+	}
+
+	if b[len(b)-1] != '\n' {
+		t.Fatal("Expected JSON log entry to end with a newline")
+	}
+}
+
+func TestJSONMessageKey(t *testing.T) {
+	formatter := &JSONFormatter{
+		FieldMap: FieldMap{
+			FieldKeyMsg: "message",
+		},
+	}
+
+	b, err := formatter.Format(&Entry{Message: "oh hai"})
+	if err != nil {
+		t.Fatal("Unable to format entry: ", err)
+	}
+	s := string(b)
+	if !(strings.Contains(s, "message") && strings.Contains(s, "oh hai")) {
+		t.Fatal("Expected JSON to format message key")
+	}
+}
+
+func TestJSONLevelKey(t *testing.T) {
+	formatter := &JSONFormatter{
+		FieldMap: FieldMap{
+			FieldKeyLevel: "somelevel",
+		},
+	}
+
+	b, err := formatter.Format(WithField("level", "something"))
+	if err != nil {
+		t.Fatal("Unable to format entry: ", err)
+	}
+	s := string(b)
+	if !strings.Contains(s, "somelevel") {
+		t.Fatal("Expected JSON to format level key")
+	}
+}
+
+func TestJSONTimeKey(t *testing.T) {
+	formatter := &JSONFormatter{
+		FieldMap: FieldMap{
+			FieldKeyTime: "timeywimey",
+		},
+	}
+
+	b, err := formatter.Format(WithField("level", "something"))
+	if err != nil {
+		t.Fatal("Unable to format entry: ", err)
+	}
+	s := string(b)
+	if !strings.Contains(s, "timeywimey") {
+		t.Fatal("Expected JSON to format time key")
+	}
+}
+
+func TestJSONDisableTimestamp(t *testing.T) {
+	formatter := &JSONFormatter{
+		DisableTimestamp: true,
+	}
+
+	b, err := formatter.Format(WithField("level", "something"))
+	if err != nil {
+		t.Fatal("Unable to format entry: ", err)
+	}
+	s := string(b)
+	if strings.Contains(s, FieldKeyTime) {
+		t.Error("Did not prevent timestamp", s)
+	}
+}
+
+func TestJSONEnableTimestamp(t *testing.T) {
+	formatter := &JSONFormatter{}
+
+	b, err := formatter.Format(WithField("level", "something"))
+	if err != nil {
+		t.Fatal("Unable to format entry: ", err)
+	}
+	s := string(b)
+	if !strings.Contains(s, FieldKeyTime) {
+		t.Error("Timestamp not present", s)
+	}
+}

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/logger_bench_test.go

@@ -0,0 +1,61 @@
+package logrus
+
+import (
+	"os"
+	"testing"
+)
+
+// smallFields is a small size data set for benchmarking
+var loggerFields = Fields{
+	"foo":   "bar",
+	"baz":   "qux",
+	"one":   "two",
+	"three": "four",
+}
+
+func BenchmarkDummyLogger(b *testing.B) {
+	nullf, err := os.OpenFile("/dev/null", os.O_WRONLY, 0666)
+	if err != nil {
+		b.Fatalf("%v", err)
+	}
+	defer nullf.Close()
+	doLoggerBenchmark(b, nullf, &TextFormatter{DisableColors: true}, smallFields)
+}
+
+func BenchmarkDummyLoggerNoLock(b *testing.B) {
+	nullf, err := os.OpenFile("/dev/null", os.O_WRONLY|os.O_APPEND, 0666)
+	if err != nil {
+		b.Fatalf("%v", err)
+	}
+	defer nullf.Close()
+	doLoggerBenchmarkNoLock(b, nullf, &TextFormatter{DisableColors: true}, smallFields)
+}
+
+func doLoggerBenchmark(b *testing.B, out *os.File, formatter Formatter, fields Fields) {
+	logger := Logger{
+		Out:       out,
+		Level:     InfoLevel,
+		Formatter: formatter,
+	}
+	entry := logger.WithFields(fields)
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			entry.Info("aaa")
+		}
+	})
+}
+
+func doLoggerBenchmarkNoLock(b *testing.B, out *os.File, formatter Formatter, fields Fields) {
+	logger := Logger{
+		Out:       out,
+		Level:     InfoLevel,
+		Formatter: formatter,
+	}
+	logger.SetNoLock()
+	entry := logger.WithFields(fields)
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			entry.Info("aaa")
+		}
+	})
+}

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/logrus_test.go

@@ -0,0 +1,386 @@
+package logrus
+
+import (
+	"bytes"
+	"encoding/json"
+	"strconv"
+	"strings"
+	"sync"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func LogAndAssertJSON(t *testing.T, log func(*Logger), assertions func(fields Fields)) {
+	var buffer bytes.Buffer
+	var fields Fields
+
+	logger := New()
+	logger.Out = &buffer
+	logger.Formatter = new(JSONFormatter)
+
+	log(logger)
+
+	err := json.Unmarshal(buffer.Bytes(), &fields)
+	assert.Nil(t, err)
+
+	assertions(fields)
+}
+
+func LogAndAssertText(t *testing.T, log func(*Logger), assertions func(fields map[string]string)) {
+	var buffer bytes.Buffer
+
+	logger := New()
+	logger.Out = &buffer
+	logger.Formatter = &TextFormatter{
+		DisableColors: true,
+	}
+
+	log(logger)
+
+	fields := make(map[string]string)
+	for _, kv := range strings.Split(buffer.String(), " ") {
+		if !strings.Contains(kv, "=") {
+			continue
+		}
+		kvArr := strings.Split(kv, "=")
+		key := strings.TrimSpace(kvArr[0])
+		val := kvArr[1]
+		if kvArr[1][0] == '"' {
+			var err error
+			val, err = strconv.Unquote(val)
+			assert.NoError(t, err)
+		}
+		fields[key] = val
+	}
+	assertions(fields)
+}
+
+func TestPrint(t *testing.T) {
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.Print("test")
+	}, func(fields Fields) {
+		assert.Equal(t, fields["msg"], "test")
+		assert.Equal(t, fields["level"], "info")
+	})
+}
+
+func TestInfo(t *testing.T) {
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.Info("test")
+	}, func(fields Fields) {
+		assert.Equal(t, fields["msg"], "test")
+		assert.Equal(t, fields["level"], "info")
+	})
+}
+
+func TestWarn(t *testing.T) {
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.Warn("test")
+	}, func(fields Fields) {
+		assert.Equal(t, fields["msg"], "test")
+		assert.Equal(t, fields["level"], "warning")
+	})
+}
+
+func TestInfolnShouldAddSpacesBetweenStrings(t *testing.T) {
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.Infoln("test", "test")
+	}, func(fields Fields) {
+		assert.Equal(t, fields["msg"], "test test")
+	})
+}
+
+func TestInfolnShouldAddSpacesBetweenStringAndNonstring(t *testing.T) {
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.Infoln("test", 10)
+	}, func(fields Fields) {
+		assert.Equal(t, fields["msg"], "test 10")
+	})
+}
+
+func TestInfolnShouldAddSpacesBetweenTwoNonStrings(t *testing.T) {
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.Infoln(10, 10)
+	}, func(fields Fields) {
+		assert.Equal(t, fields["msg"], "10 10")
+	})
+}
+
+func TestInfoShouldAddSpacesBetweenTwoNonStrings(t *testing.T) {
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.Infoln(10, 10)
+	}, func(fields Fields) {
+		assert.Equal(t, fields["msg"], "10 10")
+	})
+}
+
+func TestInfoShouldNotAddSpacesBetweenStringAndNonstring(t *testing.T) {
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.Info("test", 10)
+	}, func(fields Fields) {
+		assert.Equal(t, fields["msg"], "test10")
+	})
+}
+
+func TestInfoShouldNotAddSpacesBetweenStrings(t *testing.T) {
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.Info("test", "test")
+	}, func(fields Fields) {
+		assert.Equal(t, fields["msg"], "testtest")
+	})
+}
+
+func TestWithFieldsShouldAllowAssignments(t *testing.T) {
+	var buffer bytes.Buffer
+	var fields Fields
+
+	logger := New()
+	logger.Out = &buffer
+	logger.Formatter = new(JSONFormatter)
+
+	localLog := logger.WithFields(Fields{
+		"key1": "value1",
+	})
+
+	localLog.WithField("key2", "value2").Info("test")
+	err := json.Unmarshal(buffer.Bytes(), &fields)
+	assert.Nil(t, err)
+
+	assert.Equal(t, "value2", fields["key2"])
+	assert.Equal(t, "value1", fields["key1"])
+
+	buffer = bytes.Buffer{}
+	fields = Fields{}
+	localLog.Info("test")
+	err = json.Unmarshal(buffer.Bytes(), &fields)
+	assert.Nil(t, err)
+
+	_, ok := fields["key2"]
+	assert.Equal(t, false, ok)
+	assert.Equal(t, "value1", fields["key1"])
+}
+
+func TestUserSuppliedFieldDoesNotOverwriteDefaults(t *testing.T) {
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.WithField("msg", "hello").Info("test")
+	}, func(fields Fields) {
+		assert.Equal(t, fields["msg"], "test")
+	})
+}
+
+func TestUserSuppliedMsgFieldHasPrefix(t *testing.T) {
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.WithField("msg", "hello").Info("test")
+	}, func(fields Fields) {
+		assert.Equal(t, fields["msg"], "test")
+		assert.Equal(t, fields["fields.msg"], "hello")
+	})
+}
+
+func TestUserSuppliedTimeFieldHasPrefix(t *testing.T) {
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.WithField("time", "hello").Info("test")
+	}, func(fields Fields) {
+		assert.Equal(t, fields["fields.time"], "hello")
+	})
+}
+
+func TestUserSuppliedLevelFieldHasPrefix(t *testing.T) {
+	LogAndAssertJSON(t, func(log *Logger) {
+		log.WithField("level", 1).Info("test")
+	}, func(fields Fields) {
+		assert.Equal(t, fields["level"], "info")
+		assert.Equal(t, fields["fields.level"], 1.0) // JSON has floats only
+	})
+}
+
+func TestDefaultFieldsAreNotPrefixed(t *testing.T) {
+	LogAndAssertText(t, func(log *Logger) {
+		ll := log.WithField("herp", "derp")
+		ll.Info("hello")
+		ll.Info("bye")
+	}, func(fields map[string]string) {
+		for _, fieldName := range []string{"fields.level", "fields.time", "fields.msg"} {
+			if _, ok := fields[fieldName]; ok {
+				t.Fatalf("should not have prefixed %q: %v", fieldName, fields)
+			}
+		}
+	})
+}
+
+func TestDoubleLoggingDoesntPrefixPreviousFields(t *testing.T) {
+
+	var buffer bytes.Buffer
+	var fields Fields
+
+	logger := New()
+	logger.Out = &buffer
+	logger.Formatter = new(JSONFormatter)
+
+	llog := logger.WithField("context", "eating raw fish")
+
+	llog.Info("looks delicious")
+
+	err := json.Unmarshal(buffer.Bytes(), &fields)
+	assert.NoError(t, err, "should have decoded first message")
+	assert.Equal(t, len(fields), 4, "should only have msg/time/level/context fields")
+	assert.Equal(t, fields["msg"], "looks delicious")
+	assert.Equal(t, fields["context"], "eating raw fish")
+
+	buffer.Reset()
+
+	llog.Warn("omg it is!")
+
+	err = json.Unmarshal(buffer.Bytes(), &fields)
+	assert.NoError(t, err, "should have decoded second message")
+	assert.Equal(t, len(fields), 4, "should only have msg/time/level/context fields")
+	assert.Equal(t, fields["msg"], "omg it is!")
+	assert.Equal(t, fields["context"], "eating raw fish")
+	assert.Nil(t, fields["fields.msg"], "should not have prefixed previous `msg` entry")
+
+}
+
+func TestConvertLevelToString(t *testing.T) {
+	assert.Equal(t, "debug", DebugLevel.String())
+	assert.Equal(t, "info", InfoLevel.String())
+	assert.Equal(t, "warning", WarnLevel.String())
+	assert.Equal(t, "error", ErrorLevel.String())
+	assert.Equal(t, "fatal", FatalLevel.String())
+	assert.Equal(t, "panic", PanicLevel.String())
+}
+
+func TestParseLevel(t *testing.T) {
+	l, err := ParseLevel("panic")
+	assert.Nil(t, err)
+	assert.Equal(t, PanicLevel, l)
+
+	l, err = ParseLevel("PANIC")
+	assert.Nil(t, err)
+	assert.Equal(t, PanicLevel, l)
+
+	l, err = ParseLevel("fatal")
+	assert.Nil(t, err)
+	assert.Equal(t, FatalLevel, l)
+
+	l, err = ParseLevel("FATAL")
+	assert.Nil(t, err)
+	assert.Equal(t, FatalLevel, l)
+
+	l, err = ParseLevel("error")
+	assert.Nil(t, err)
+	assert.Equal(t, ErrorLevel, l)
+
+	l, err = ParseLevel("ERROR")
+	assert.Nil(t, err)
+	assert.Equal(t, ErrorLevel, l)
+
+	l, err = ParseLevel("warn")
+	assert.Nil(t, err)
+	assert.Equal(t, WarnLevel, l)
+
+	l, err = ParseLevel("WARN")
+	assert.Nil(t, err)
+	assert.Equal(t, WarnLevel, l)
+
+	l, err = ParseLevel("warning")
+	assert.Nil(t, err)
+	assert.Equal(t, WarnLevel, l)
+
+	l, err = ParseLevel("WARNING")
+	assert.Nil(t, err)
+	assert.Equal(t, WarnLevel, l)
+
+	l, err = ParseLevel("info")
+	assert.Nil(t, err)
+	assert.Equal(t, InfoLevel, l)
+
+	l, err = ParseLevel("INFO")
+	assert.Nil(t, err)
+	assert.Equal(t, InfoLevel, l)
+
+	l, err = ParseLevel("debug")
+	assert.Nil(t, err)
+	assert.Equal(t, DebugLevel, l)
+
+	l, err = ParseLevel("DEBUG")
+	assert.Nil(t, err)
+	assert.Equal(t, DebugLevel, l)
+
+	l, err = ParseLevel("invalid")
+	assert.Equal(t, "not a valid logrus Level: \"invalid\"", err.Error())
+}
+
+func TestGetSetLevelRace(t *testing.T) {
+	wg := sync.WaitGroup{}
+	for i := 0; i < 100; i++ {
+		wg.Add(1)
+		go func(i int) {
+			defer wg.Done()
+			if i%2 == 0 {
+				SetLevel(InfoLevel)
+			} else {
+				GetLevel()
+			}
+		}(i)
+
+	}
+	wg.Wait()
+}
+
+func TestLoggingRace(t *testing.T) {
+	logger := New()
+
+	var wg sync.WaitGroup
+	wg.Add(100)
+
+	for i := 0; i < 100; i++ {
+		go func() {
+			logger.Info("info")
+			wg.Done()
+		}()
+	}
+	wg.Wait()
+}
+
+// Compile test
+func TestLogrusInterface(t *testing.T) {
+	var buffer bytes.Buffer
+	fn := func(l FieldLogger) {
+		b := l.WithField("key", "value")
+		b.Debug("Test")
+	}
+	// test logger
+	logger := New()
+	logger.Out = &buffer
+	fn(logger)
+
+	// test Entry
+	e := logger.WithField("another", "value")
+	fn(e)
+}
+
+// Implements io.Writer using channels for synchronization, so we can wait on
+// the Entry.Writer goroutine to write in a non-racey way. This does assume that
+// there is a single call to Logger.Out for each message.
+type channelWriter chan []byte
+
+func (cw channelWriter) Write(p []byte) (int, error) {
+	cw <- p
+	return len(p), nil
+}
+
+func TestEntryWriter(t *testing.T) {
+	cw := channelWriter(make(chan []byte, 1))
+	log := New()
+	log.Out = cw
+	log.Formatter = new(JSONFormatter)
+	log.WithField("foo", "bar").WriterLevel(WarnLevel).Write([]byte("hello\n"))
+
+	bs := <-cw
+	var fields Fields
+	err := json.Unmarshal(bs, &fields)
+	assert.Nil(t, err)
+	assert.Equal(t, fields["foo"], "bar")
+	assert.Equal(t, fields["level"], "warning")
+}

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

@@ -0,0 +1,10 @@
+// +build darwin freebsd openbsd netbsd dragonfly
+// +build !appengine
+
+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
+
+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
+
+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
+
+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/text_formatter_test.go

@@ -0,0 +1,141 @@
+package logrus
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestFormatting(t *testing.T) {
+	tf := &TextFormatter{DisableColors: true}
+
+	testCases := []struct {
+		value    string
+		expected string
+	}{
+		{`foo`, "time=\"0001-01-01T00:00:00Z\" level=panic test=foo\n"},
+	}
+
+	for _, tc := range testCases {
+		b, _ := tf.Format(WithField("test", tc.value))
+
+		if string(b) != tc.expected {
+			t.Errorf("formatting expected for %q (result was %q instead of %q)", tc.value, string(b), tc.expected)
+		}
+	}
+}
+
+func TestQuoting(t *testing.T) {
+	tf := &TextFormatter{DisableColors: true}
+
+	checkQuoting := func(q bool, value interface{}) {
+		b, _ := tf.Format(WithField("test", value))
+		idx := bytes.Index(b, ([]byte)("test="))
+		cont := bytes.Contains(b[idx+5:], []byte("\""))
+		if cont != q {
+			if q {
+				t.Errorf("quoting expected for: %#v", value)
+			} else {
+				t.Errorf("quoting not expected for: %#v", value)
+			}
+		}
+	}
+
+	checkQuoting(false, "")
+	checkQuoting(false, "abcd")
+	checkQuoting(false, "v1.0")
+	checkQuoting(false, "1234567890")
+	checkQuoting(false, "/foobar")
+	checkQuoting(false, "foo_bar")
+	checkQuoting(false, "foo@bar")
+	checkQuoting(false, "foobar^")
+	checkQuoting(false, "+/-_^@f.oobar")
+	checkQuoting(true, "foobar$")
+	checkQuoting(true, "&foobar")
+	checkQuoting(true, "x y")
+	checkQuoting(true, "x,y")
+	checkQuoting(false, errors.New("invalid"))
+	checkQuoting(true, errors.New("invalid argument"))
+
+	// Test for quoting empty fields.
+	tf.QuoteEmptyFields = true
+	checkQuoting(true, "")
+	checkQuoting(false, "abcd")
+	checkQuoting(true, errors.New("invalid argument"))
+}
+
+func TestEscaping(t *testing.T) {
+	tf := &TextFormatter{DisableColors: true}
+
+	testCases := []struct {
+		value    string
+		expected string
+	}{
+		{`ba"r`, `ba\"r`},
+		{`ba'r`, `ba'r`},
+	}
+
+	for _, tc := range testCases {
+		b, _ := tf.Format(WithField("test", tc.value))
+		if !bytes.Contains(b, []byte(tc.expected)) {
+			t.Errorf("escaping expected for %q (result was %q instead of %q)", tc.value, string(b), tc.expected)
+		}
+	}
+}
+
+func TestEscaping_Interface(t *testing.T) {
+	tf := &TextFormatter{DisableColors: true}
+
+	ts := time.Now()
+
+	testCases := []struct {
+		value    interface{}
+		expected string
+	}{
+		{ts, fmt.Sprintf("\"%s\"", ts.String())},
+		{errors.New("error: something went wrong"), "\"error: something went wrong\""},
+	}
+
+	for _, tc := range testCases {
+		b, _ := tf.Format(WithField("test", tc.value))
+		if !bytes.Contains(b, []byte(tc.expected)) {
+			t.Errorf("escaping expected for %q (result was %q instead of %q)", tc.value, string(b), tc.expected)
+		}
+	}
+}
+
+func TestTimestampFormat(t *testing.T) {
+	checkTimeStr := func(format string) {
+		customFormatter := &TextFormatter{DisableColors: true, TimestampFormat: format}
+		customStr, _ := customFormatter.Format(WithField("test", "test"))
+		timeStart := bytes.Index(customStr, ([]byte)("time="))
+		timeEnd := bytes.Index(customStr, ([]byte)("level="))
+		timeStr := customStr[timeStart+5+len("\"") : timeEnd-1-len("\"")]
+		if format == "" {
+			format = time.RFC3339
+		}
+		_, e := time.Parse(format, (string)(timeStr))
+		if e != nil {
+			t.Errorf("time string \"%s\" did not match provided time format \"%s\": %s", timeStr, format, e)
+		}
+	}
+
+	checkTimeStr("2006-01-02T15:04:05.000000000Z07:00")
+	checkTimeStr("Mon Jan _2 15:04:05 2006")
+	checkTimeStr("")
+}
+
+func TestDisableTimestampWithColoredOutput(t *testing.T) {
+	tf := &TextFormatter{DisableTimestamp: true, ForceColors: true}
+
+	b, _ := tf.Format(WithField("test", "test"))
+	if strings.Contains(string(b), "[0000]") {
+		t.Error("timestamp not expected when DisableTimestamp is true")
+	}
+}
+
+// TODO add tests for sorting etc., this requires a parser for the text
+// formatter output.

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/bool_slice_test.go

@@ -0,0 +1,215 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"testing"
+)
+
+func setUpBSFlagSet(bsp *[]bool) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	f.BoolSliceVar(bsp, "bs", []bool{}, "Command separated list!")
+	return f
+}
+
+func setUpBSFlagSetWithDefault(bsp *[]bool) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	f.BoolSliceVar(bsp, "bs", []bool{false, true}, "Command separated list!")
+	return f
+}
+
+func TestEmptyBS(t *testing.T) {
+	var bs []bool
+	f := setUpBSFlagSet(&bs)
+	err := f.Parse([]string{})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	getBS, err := f.GetBoolSlice("bs")
+	if err != nil {
+		t.Fatal("got an error from GetBoolSlice():", err)
+	}
+	if len(getBS) != 0 {
+		t.Fatalf("got bs %v with len=%d but expected length=0", getBS, len(getBS))
+	}
+}
+
+func TestBS(t *testing.T) {
+	var bs []bool
+	f := setUpBSFlagSet(&bs)
+
+	vals := []string{"1", "F", "TRUE", "0"}
+	arg := fmt.Sprintf("--bs=%s", strings.Join(vals, ","))
+	err := f.Parse([]string{arg})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range bs {
+		b, err := strconv.ParseBool(vals[i])
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if b != v {
+			t.Fatalf("expected is[%d] to be %s but got: %t", i, vals[i], v)
+		}
+	}
+	getBS, err := f.GetBoolSlice("bs")
+	if err != nil {
+		t.Fatalf("got error: %v", err)
+	}
+	for i, v := range getBS {
+		b, err := strconv.ParseBool(vals[i])
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if b != v {
+			t.Fatalf("expected bs[%d] to be %s but got: %t from GetBoolSlice", i, vals[i], v)
+		}
+	}
+}
+
+func TestBSDefault(t *testing.T) {
+	var bs []bool
+	f := setUpBSFlagSetWithDefault(&bs)
+
+	vals := []string{"false", "T"}
+
+	err := f.Parse([]string{})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range bs {
+		b, err := strconv.ParseBool(vals[i])
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if b != v {
+			t.Fatalf("expected bs[%d] to be %t from GetBoolSlice but got: %t", i, b, v)
+		}
+	}
+
+	getBS, err := f.GetBoolSlice("bs")
+	if err != nil {
+		t.Fatal("got an error from GetBoolSlice():", err)
+	}
+	for i, v := range getBS {
+		b, err := strconv.ParseBool(vals[i])
+		if err != nil {
+			t.Fatal("got an error from GetBoolSlice():", err)
+		}
+		if b != v {
+			t.Fatalf("expected bs[%d] to be %t from GetBoolSlice but got: %t", i, b, v)
+		}
+	}
+}
+
+func TestBSWithDefault(t *testing.T) {
+	var bs []bool
+	f := setUpBSFlagSetWithDefault(&bs)
+
+	vals := []string{"FALSE", "1"}
+	arg := fmt.Sprintf("--bs=%s", strings.Join(vals, ","))
+	err := f.Parse([]string{arg})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range bs {
+		b, err := strconv.ParseBool(vals[i])
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if b != v {
+			t.Fatalf("expected bs[%d] to be %t but got: %t", i, b, v)
+		}
+	}
+
+	getBS, err := f.GetBoolSlice("bs")
+	if err != nil {
+		t.Fatal("got an error from GetBoolSlice():", err)
+	}
+	for i, v := range getBS {
+		b, err := strconv.ParseBool(vals[i])
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if b != v {
+			t.Fatalf("expected bs[%d] to be %t from GetBoolSlice but got: %t", i, b, v)
+		}
+	}
+}
+
+func TestBSCalledTwice(t *testing.T) {
+	var bs []bool
+	f := setUpBSFlagSet(&bs)
+
+	in := []string{"T,F", "T"}
+	expected := []bool{true, false, true}
+	argfmt := "--bs=%s"
+	arg1 := fmt.Sprintf(argfmt, in[0])
+	arg2 := fmt.Sprintf(argfmt, in[1])
+	err := f.Parse([]string{arg1, arg2})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range bs {
+		if expected[i] != v {
+			t.Fatalf("expected bs[%d] to be %t but got %t", i, expected[i], v)
+		}
+	}
+}
+
+func TestBSBadQuoting(t *testing.T) {
+
+	tests := []struct {
+		Want    []bool
+		FlagArg []string
+	}{
+		{
+			Want:    []bool{true, false, true},
+			FlagArg: []string{"1", "0", "true"},
+		},
+		{
+			Want:    []bool{true, false},
+			FlagArg: []string{"True", "F"},
+		},
+		{
+			Want:    []bool{true, false},
+			FlagArg: []string{"T", "0"},
+		},
+		{
+			Want:    []bool{true, false},
+			FlagArg: []string{"1", "0"},
+		},
+		{
+			Want:    []bool{true, false, false},
+			FlagArg: []string{"true,false", "false"},
+		},
+		{
+			Want:    []bool{true, false, false, true, false, true, false},
+			FlagArg: []string{`"true,false,false,1,0,     T"`, " false "},
+		},
+		{
+			Want:    []bool{false, false, true, false, true, false, true},
+			FlagArg: []string{`"0, False,  T,false  , true,F"`, "true"},
+		},
+	}
+
+	for i, test := range tests {
+
+		var bs []bool
+		f := setUpBSFlagSet(&bs)
+
+		if err := f.Parse([]string{fmt.Sprintf("--bs=%s", strings.Join(test.FlagArg, ","))}); err != nil {
+			t.Fatalf("flag parsing failed with error: %s\nparsing:\t%#v\nwant:\t\t%#v",
+				err, test.FlagArg, test.Want[i])
+		}
+
+		for j, b := range bs {
+			if b != test.Want[j] {
+				t.Fatalf("bad value parsed for test %d on bool %d:\nwant:\t%t\ngot:\t%t", i, j, test.Want[j], b)
+			}
+		}
+	}
+}

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

@@ -0,0 +1,179 @@
+// 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 (
+	"bytes"
+	"strconv"
+	"testing"
+)
+
+// This value can be a boolean ("true", "false") or "maybe"
+type triStateValue int
+
+const (
+	triStateFalse triStateValue = 0
+	triStateTrue  triStateValue = 1
+	triStateMaybe triStateValue = 2
+)
+
+const strTriStateMaybe = "maybe"
+
+func (v *triStateValue) IsBoolFlag() bool {
+	return true
+}
+
+func (v *triStateValue) Get() interface{} {
+	return triStateValue(*v)
+}
+
+func (v *triStateValue) Set(s string) error {
+	if s == strTriStateMaybe {
+		*v = triStateMaybe
+		return nil
+	}
+	boolVal, err := strconv.ParseBool(s)
+	if boolVal {
+		*v = triStateTrue
+	} else {
+		*v = triStateFalse
+	}
+	return err
+}
+
+func (v *triStateValue) String() string {
+	if *v == triStateMaybe {
+		return strTriStateMaybe
+	}
+	return strconv.FormatBool(*v == triStateTrue)
+}
+
+// The type of the flag as required by the pflag.Value interface
+func (v *triStateValue) Type() string {
+	return "version"
+}
+
+func setUpFlagSet(tristate *triStateValue) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	*tristate = triStateFalse
+	flag := f.VarPF(tristate, "tristate", "t", "tristate value (true, maybe or false)")
+	flag.NoOptDefVal = "true"
+	return f
+}
+
+func TestExplicitTrue(t *testing.T) {
+	var tristate triStateValue
+	f := setUpFlagSet(&tristate)
+	err := f.Parse([]string{"--tristate=true"})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	if tristate != triStateTrue {
+		t.Fatal("expected", triStateTrue, "(triStateTrue) but got", tristate, "instead")
+	}
+}
+
+func TestImplicitTrue(t *testing.T) {
+	var tristate triStateValue
+	f := setUpFlagSet(&tristate)
+	err := f.Parse([]string{"--tristate"})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	if tristate != triStateTrue {
+		t.Fatal("expected", triStateTrue, "(triStateTrue) but got", tristate, "instead")
+	}
+}
+
+func TestShortFlag(t *testing.T) {
+	var tristate triStateValue
+	f := setUpFlagSet(&tristate)
+	err := f.Parse([]string{"-t"})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	if tristate != triStateTrue {
+		t.Fatal("expected", triStateTrue, "(triStateTrue) but got", tristate, "instead")
+	}
+}
+
+func TestShortFlagExtraArgument(t *testing.T) {
+	var tristate triStateValue
+	f := setUpFlagSet(&tristate)
+	// The"maybe"turns into an arg, since short boolean options will only do true/false
+	err := f.Parse([]string{"-t", "maybe"})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	if tristate != triStateTrue {
+		t.Fatal("expected", triStateTrue, "(triStateTrue) but got", tristate, "instead")
+	}
+	args := f.Args()
+	if len(args) != 1 || args[0] != "maybe" {
+		t.Fatal("expected an extra 'maybe' argument to stick around")
+	}
+}
+
+func TestExplicitMaybe(t *testing.T) {
+	var tristate triStateValue
+	f := setUpFlagSet(&tristate)
+	err := f.Parse([]string{"--tristate=maybe"})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	if tristate != triStateMaybe {
+		t.Fatal("expected", triStateMaybe, "(triStateMaybe) but got", tristate, "instead")
+	}
+}
+
+func TestExplicitFalse(t *testing.T) {
+	var tristate triStateValue
+	f := setUpFlagSet(&tristate)
+	err := f.Parse([]string{"--tristate=false"})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	if tristate != triStateFalse {
+		t.Fatal("expected", triStateFalse, "(triStateFalse) but got", tristate, "instead")
+	}
+}
+
+func TestImplicitFalse(t *testing.T) {
+	var tristate triStateValue
+	f := setUpFlagSet(&tristate)
+	err := f.Parse([]string{})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	if tristate != triStateFalse {
+		t.Fatal("expected", triStateFalse, "(triStateFalse) but got", tristate, "instead")
+	}
+}
+
+func TestInvalidValue(t *testing.T) {
+	var tristate triStateValue
+	f := setUpFlagSet(&tristate)
+	var buf bytes.Buffer
+	f.SetOutput(&buf)
+	err := f.Parse([]string{"--tristate=invalid"})
+	if err == nil {
+		t.Fatal("expected an error but did not get any, tristate has value", tristate)
+	}
+}
+
+func TestBoolP(t *testing.T) {
+	b := BoolP("bool", "b", false, "bool value in CommandLine")
+	c := BoolP("c", "c", false, "other bool value")
+	args := []string{"--bool"}
+	if err := CommandLine.Parse(args); err != nil {
+		t.Error("expected no error, got ", err)
+	}
+	if *b != true {
+		t.Errorf("expected b=true got b=%v", *b)
+	}
+	if *c != false {
+		t.Errorf("expect c=false got c=%v", *c)
+	}
+}

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 {
+	v, err := strconv.ParseInt(s, 0, 64)
+	// -1 means that no specific value was passed, so increment
+	if v == -1 {
+		*i = countValue(*i + 1)
+	} else {
+		*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/count_test.go

@@ -0,0 +1,52 @@
+package pflag
+
+import (
+	"os"
+	"testing"
+)
+
+func setUpCount(c *int) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	f.CountVarP(c, "verbose", "v", "a counter")
+	return f
+}
+
+func TestCount(t *testing.T) {
+	testCases := []struct {
+		input    []string
+		success  bool
+		expected int
+	}{
+		{[]string{"-vvv"}, true, 3},
+		{[]string{"-v", "-v", "-v"}, true, 3},
+		{[]string{"-v", "--verbose", "-v"}, true, 3},
+		{[]string{"-v=3", "-v"}, true, 4},
+		{[]string{"-v=a"}, false, 0},
+	}
+
+	devnull, _ := os.Open(os.DevNull)
+	os.Stderr = devnull
+	for i := range testCases {
+		var count int
+		f := setUpCount(&count)
+
+		tc := &testCases[i]
+
+		err := f.Parse(tc.input)
+		if err != nil && tc.success == true {
+			t.Errorf("expected success, got %q", err)
+			continue
+		} else if err == nil && tc.success == false {
+			t.Errorf("expected failure, got success")
+			continue
+		} else if tc.success {
+			c, err := f.GetCount("verbose")
+			if err != nil {
+				t.Errorf("Got error trying to fetch the counter flag")
+			}
+			if c != tc.expected {
+				t.Errorf("expected %q, got %q", tc.expected, c)
+			}
+		}
+	}
+}

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/example_test.go

@@ -0,0 +1,36 @@
+// Copyright 2012 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_test
+
+import (
+	"fmt"
+
+	"github.com/spf13/pflag"
+)
+
+func ExampleShorthandLookup() {
+	name := "verbose"
+	short := name[:1]
+
+	pflag.BoolP(name, short, false, "verbose output")
+
+	// len(short) must be == 1
+	flag := pflag.ShorthandLookup(short)
+
+	fmt.Println(flag.Name)
+}
+
+func ExampleFlagSet_ShorthandLookup() {
+	name := "verbose"
+	short := name[:1]
+
+	fs := pflag.NewFlagSet("Example", pflag.ContinueOnError)
+	fs.BoolP(name, short, false, "verbose output")
+
+	// len(short) must be == 1
+	flag := fs.ShorthandLookup(short)
+
+	fmt.Println(flag.Name)
+}

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

@@ -0,0 +1,29 @@
+// Copyright 2010 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 (
+	"io/ioutil"
+	"os"
+)
+
+// Additional routines compiled into the package only during testing.
+
+// ResetForTesting clears all flag state and sets the usage function as directed.
+// After calling ResetForTesting, parse errors in flag handling will not
+// exit the program.
+func ResetForTesting(usage func()) {
+	CommandLine = &FlagSet{
+		name:          os.Args[0],
+		errorHandling: ContinueOnError,
+		output:        ioutil.Discard,
+	}
+	Usage = usage
+}
+
+// GetCommandLine returns the default FlagSet.
+func GetCommandLine() *FlagSet {
+	return CommandLine
+}

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 +1,101 @@
+// 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)
+	})
+}

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

@@ -0,0 +1,39 @@
+// 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"
+	"testing"
+)
+
+func TestGoflags(t *testing.T) {
+	goflag.String("stringFlag", "stringFlag", "stringFlag")
+	goflag.Bool("boolFlag", false, "boolFlag")
+
+	f := NewFlagSet("test", ContinueOnError)
+
+	f.AddGoFlagSet(goflag.CommandLine)
+	err := f.Parse([]string{"--stringFlag=bob", "--boolFlag"})
+	if err != nil {
+		t.Fatal("expected no error; get", err)
+	}
+
+	getString, err := f.GetString("stringFlag")
+	if err != nil {
+		t.Fatal("expected no error; get", err)
+	}
+	if getString != "bob" {
+		t.Fatalf("expected getString=bob but got getString=%s", getString)
+	}
+
+	getBool, err := f.GetBool("boolFlag")
+	if err != nil {
+		t.Fatal("expected no error; get", err)
+	}
+	if getBool != true {
+		t.Fatalf("expected getBool=true but got getBool=%v", getBool)
+	}
+}

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/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/int_slice_test.go

@@ -0,0 +1,165 @@
+// 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 (
+	"fmt"
+	"strconv"
+	"strings"
+	"testing"
+)
+
+func setUpISFlagSet(isp *[]int) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	f.IntSliceVar(isp, "is", []int{}, "Command separated list!")
+	return f
+}
+
+func setUpISFlagSetWithDefault(isp *[]int) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	f.IntSliceVar(isp, "is", []int{0, 1}, "Command separated list!")
+	return f
+}
+
+func TestEmptyIS(t *testing.T) {
+	var is []int
+	f := setUpISFlagSet(&is)
+	err := f.Parse([]string{})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	getIS, err := f.GetIntSlice("is")
+	if err != nil {
+		t.Fatal("got an error from GetIntSlice():", err)
+	}
+	if len(getIS) != 0 {
+		t.Fatalf("got is %v with len=%d but expected length=0", getIS, len(getIS))
+	}
+}
+
+func TestIS(t *testing.T) {
+	var is []int
+	f := setUpISFlagSet(&is)
+
+	vals := []string{"1", "2", "4", "3"}
+	arg := fmt.Sprintf("--is=%s", strings.Join(vals, ","))
+	err := f.Parse([]string{arg})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range is {
+		d, err := strconv.Atoi(vals[i])
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if d != v {
+			t.Fatalf("expected is[%d] to be %s but got: %d", i, vals[i], v)
+		}
+	}
+	getIS, err := f.GetIntSlice("is")
+	if err != nil {
+		t.Fatalf("got error: %v", err)
+	}
+	for i, v := range getIS {
+		d, err := strconv.Atoi(vals[i])
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if d != v {
+			t.Fatalf("expected is[%d] to be %s but got: %d from GetIntSlice", i, vals[i], v)
+		}
+	}
+}
+
+func TestISDefault(t *testing.T) {
+	var is []int
+	f := setUpISFlagSetWithDefault(&is)
+
+	vals := []string{"0", "1"}
+
+	err := f.Parse([]string{})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range is {
+		d, err := strconv.Atoi(vals[i])
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if d != v {
+			t.Fatalf("expected is[%d] to be %d but got: %d", i, d, v)
+		}
+	}
+
+	getIS, err := f.GetIntSlice("is")
+	if err != nil {
+		t.Fatal("got an error from GetIntSlice():", err)
+	}
+	for i, v := range getIS {
+		d, err := strconv.Atoi(vals[i])
+		if err != nil {
+			t.Fatal("got an error from GetIntSlice():", err)
+		}
+		if d != v {
+			t.Fatalf("expected is[%d] to be %d from GetIntSlice but got: %d", i, d, v)
+		}
+	}
+}
+
+func TestISWithDefault(t *testing.T) {
+	var is []int
+	f := setUpISFlagSetWithDefault(&is)
+
+	vals := []string{"1", "2"}
+	arg := fmt.Sprintf("--is=%s", strings.Join(vals, ","))
+	err := f.Parse([]string{arg})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range is {
+		d, err := strconv.Atoi(vals[i])
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if d != v {
+			t.Fatalf("expected is[%d] to be %d but got: %d", i, d, v)
+		}
+	}
+
+	getIS, err := f.GetIntSlice("is")
+	if err != nil {
+		t.Fatal("got an error from GetIntSlice():", err)
+	}
+	for i, v := range getIS {
+		d, err := strconv.Atoi(vals[i])
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if d != v {
+			t.Fatalf("expected is[%d] to be %d from GetIntSlice but got: %d", i, d, v)
+		}
+	}
+}
+
+func TestISCalledTwice(t *testing.T) {
+	var is []int
+	f := setUpISFlagSet(&is)
+
+	in := []string{"1,2", "3"}
+	expected := []int{1, 2, 3}
+	argfmt := "--is=%s"
+	arg1 := fmt.Sprintf(argfmt, in[0])
+	arg2 := fmt.Sprintf(argfmt, in[1])
+	err := f.Parse([]string{arg1, arg2})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range is {
+		if expected[i] != v {
+			t.Fatalf("expected is[%d] to be %d but got: %d", i, expected[i], v)
+		}
+	}
+}

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/ip_slice_test.go

@@ -0,0 +1,222 @@
+package pflag
+
+import (
+	"fmt"
+	"net"
+	"strings"
+	"testing"
+)
+
+func setUpIPSFlagSet(ipsp *[]net.IP) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	f.IPSliceVar(ipsp, "ips", []net.IP{}, "Command separated list!")
+	return f
+}
+
+func setUpIPSFlagSetWithDefault(ipsp *[]net.IP) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	f.IPSliceVar(ipsp, "ips",
+		[]net.IP{
+			net.ParseIP("192.168.1.1"),
+			net.ParseIP("0:0:0:0:0:0:0:1"),
+		},
+		"Command separated list!")
+	return f
+}
+
+func TestEmptyIP(t *testing.T) {
+	var ips []net.IP
+	f := setUpIPSFlagSet(&ips)
+	err := f.Parse([]string{})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	getIPS, err := f.GetIPSlice("ips")
+	if err != nil {
+		t.Fatal("got an error from GetIPSlice():", err)
+	}
+	if len(getIPS) != 0 {
+		t.Fatalf("got ips %v with len=%d but expected length=0", getIPS, len(getIPS))
+	}
+}
+
+func TestIPS(t *testing.T) {
+	var ips []net.IP
+	f := setUpIPSFlagSet(&ips)
+
+	vals := []string{"192.168.1.1", "10.0.0.1", "0:0:0:0:0:0:0:2"}
+	arg := fmt.Sprintf("--ips=%s", strings.Join(vals, ","))
+	err := f.Parse([]string{arg})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range ips {
+		if ip := net.ParseIP(vals[i]); ip == nil {
+			t.Fatalf("invalid string being converted to IP address: %s", vals[i])
+		} else if !ip.Equal(v) {
+			t.Fatalf("expected ips[%d] to be %s but got: %s from GetIPSlice", i, vals[i], v)
+		}
+	}
+}
+
+func TestIPSDefault(t *testing.T) {
+	var ips []net.IP
+	f := setUpIPSFlagSetWithDefault(&ips)
+
+	vals := []string{"192.168.1.1", "0:0:0:0:0:0:0:1"}
+	err := f.Parse([]string{})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range ips {
+		if ip := net.ParseIP(vals[i]); ip == nil {
+			t.Fatalf("invalid string being converted to IP address: %s", vals[i])
+		} else if !ip.Equal(v) {
+			t.Fatalf("expected ips[%d] to be %s but got: %s", i, vals[i], v)
+		}
+	}
+
+	getIPS, err := f.GetIPSlice("ips")
+	if err != nil {
+		t.Fatal("got an error from GetIPSlice")
+	}
+	for i, v := range getIPS {
+		if ip := net.ParseIP(vals[i]); ip == nil {
+			t.Fatalf("invalid string being converted to IP address: %s", vals[i])
+		} else if !ip.Equal(v) {
+			t.Fatalf("expected ips[%d] to be %s but got: %s", i, vals[i], v)
+		}
+	}
+}
+
+func TestIPSWithDefault(t *testing.T) {
+	var ips []net.IP
+	f := setUpIPSFlagSetWithDefault(&ips)
+
+	vals := []string{"192.168.1.1", "0:0:0:0:0:0:0:1"}
+	arg := fmt.Sprintf("--ips=%s", strings.Join(vals, ","))
+	err := f.Parse([]string{arg})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range ips {
+		if ip := net.ParseIP(vals[i]); ip == nil {
+			t.Fatalf("invalid string being converted to IP address: %s", vals[i])
+		} else if !ip.Equal(v) {
+			t.Fatalf("expected ips[%d] to be %s but got: %s", i, vals[i], v)
+		}
+	}
+
+	getIPS, err := f.GetIPSlice("ips")
+	if err != nil {
+		t.Fatal("got an error from GetIPSlice")
+	}
+	for i, v := range getIPS {
+		if ip := net.ParseIP(vals[i]); ip == nil {
+			t.Fatalf("invalid string being converted to IP address: %s", vals[i])
+		} else if !ip.Equal(v) {
+			t.Fatalf("expected ips[%d] to be %s but got: %s", i, vals[i], v)
+		}
+	}
+}
+
+func TestIPSCalledTwice(t *testing.T) {
+	var ips []net.IP
+	f := setUpIPSFlagSet(&ips)
+
+	in := []string{"192.168.1.2,0:0:0:0:0:0:0:1", "10.0.0.1"}
+	expected := []net.IP{net.ParseIP("192.168.1.2"), net.ParseIP("0:0:0:0:0:0:0:1"), net.ParseIP("10.0.0.1")}
+	argfmt := "ips=%s"
+	arg1 := fmt.Sprintf(argfmt, in[0])
+	arg2 := fmt.Sprintf(argfmt, in[1])
+	err := f.Parse([]string{arg1, arg2})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range ips {
+		if !expected[i].Equal(v) {
+			t.Fatalf("expected ips[%d] to be %s but got: %s", i, expected[i], v)
+		}
+	}
+}
+
+func TestIPSBadQuoting(t *testing.T) {
+
+	tests := []struct {
+		Want    []net.IP
+		FlagArg []string
+	}{
+		{
+			Want: []net.IP{
+				net.ParseIP("a4ab:61d:f03e:5d7d:fad7:d4c2:a1a5:568"),
+				net.ParseIP("203.107.49.208"),
+				net.ParseIP("14.57.204.90"),
+			},
+			FlagArg: []string{
+				"a4ab:61d:f03e:5d7d:fad7:d4c2:a1a5:568",
+				"203.107.49.208",
+				"14.57.204.90",
+			},
+		},
+		{
+			Want: []net.IP{
+				net.ParseIP("204.228.73.195"),
+				net.ParseIP("86.141.15.94"),
+			},
+			FlagArg: []string{
+				"204.228.73.195",
+				"86.141.15.94",
+			},
+		},
+		{
+			Want: []net.IP{
+				net.ParseIP("c70c:db36:3001:890f:c6ea:3f9b:7a39:cc3f"),
+				net.ParseIP("4d17:1d6e:e699:bd7a:88c5:5e7e:ac6a:4472"),
+			},
+			FlagArg: []string{
+				"c70c:db36:3001:890f:c6ea:3f9b:7a39:cc3f",
+				"4d17:1d6e:e699:bd7a:88c5:5e7e:ac6a:4472",
+			},
+		},
+		{
+			Want: []net.IP{
+				net.ParseIP("5170:f971:cfac:7be3:512a:af37:952c:bc33"),
+				net.ParseIP("93.21.145.140"),
+				net.ParseIP("2cac:61d3:c5ff:6caf:73e0:1b1a:c336:c1ca"),
+			},
+			FlagArg: []string{
+				" 5170:f971:cfac:7be3:512a:af37:952c:bc33  , 93.21.145.140     ",
+				"2cac:61d3:c5ff:6caf:73e0:1b1a:c336:c1ca",
+			},
+		},
+		{
+			Want: []net.IP{
+				net.ParseIP("2e5e:66b2:6441:848:5b74:76ea:574c:3a7b"),
+				net.ParseIP("2e5e:66b2:6441:848:5b74:76ea:574c:3a7b"),
+				net.ParseIP("2e5e:66b2:6441:848:5b74:76ea:574c:3a7b"),
+				net.ParseIP("2e5e:66b2:6441:848:5b74:76ea:574c:3a7b"),
+			},
+			FlagArg: []string{
+				`"2e5e:66b2:6441:848:5b74:76ea:574c:3a7b,        2e5e:66b2:6441:848:5b74:76ea:574c:3a7b,2e5e:66b2:6441:848:5b74:76ea:574c:3a7b     "`,
+				" 2e5e:66b2:6441:848:5b74:76ea:574c:3a7b"},
+		},
+	}
+
+	for i, test := range tests {
+
+		var ips []net.IP
+		f := setUpIPSFlagSet(&ips)
+
+		if err := f.Parse([]string{fmt.Sprintf("--ips=%s", strings.Join(test.FlagArg, ","))}); err != nil {
+			t.Fatalf("flag parsing failed with error: %s\nparsing:\t%#v\nwant:\t\t%s",
+				err, test.FlagArg, test.Want[i])
+		}
+
+		for j, b := range ips {
+			if !b.Equal(test.Want[j]) {
+				t.Fatalf("bad value parsed for test %d on net.IP %d:\nwant:\t%s\ngot:\t%s", i, j, test.Want[j], b)
+			}
+		}
+	}
+}

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

@@ -0,0 +1,63 @@
+package pflag
+
+import (
+	"fmt"
+	"net"
+	"os"
+	"testing"
+)
+
+func setUpIP(ip *net.IP) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	f.IPVar(ip, "address", net.ParseIP("0.0.0.0"), "IP Address")
+	return f
+}
+
+func TestIP(t *testing.T) {
+	testCases := []struct {
+		input    string
+		success  bool
+		expected string
+	}{
+		{"0.0.0.0", true, "0.0.0.0"},
+		{" 0.0.0.0 ", true, "0.0.0.0"},
+		{"1.2.3.4", true, "1.2.3.4"},
+		{"127.0.0.1", true, "127.0.0.1"},
+		{"255.255.255.255", true, "255.255.255.255"},
+		{"", false, ""},
+		{"0", false, ""},
+		{"localhost", false, ""},
+		{"0.0.0", false, ""},
+		{"0.0.0.", false, ""},
+		{"0.0.0.0.", false, ""},
+		{"0.0.0.256", false, ""},
+		{"0 . 0 . 0 . 0", false, ""},
+	}
+
+	devnull, _ := os.Open(os.DevNull)
+	os.Stderr = devnull
+	for i := range testCases {
+		var addr net.IP
+		f := setUpIP(&addr)
+
+		tc := &testCases[i]
+
+		arg := fmt.Sprintf("--address=%s", tc.input)
+		err := f.Parse([]string{arg})
+		if err != nil && tc.success == true {
+			t.Errorf("expected success, got %q", err)
+			continue
+		} else if err == nil && tc.success == false {
+			t.Errorf("expected failure")
+			continue
+		} else if tc.success {
+			ip, err := f.GetIP("address")
+			if err != nil {
+				t.Errorf("Got error trying to fetch the IP flag: %v", err)
+			}
+			if ip.String() != tc.expected {
+				t.Errorf("expected %q, got %q", tc.expected, ip.String())
+			}
+		}
+	}
+}

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)
+}

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

@@ -0,0 +1,70 @@
+package pflag
+
+import (
+	"fmt"
+	"net"
+	"os"
+	"testing"
+)
+
+func setUpIPNet(ip *net.IPNet) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	_, def, _ := net.ParseCIDR("0.0.0.0/0")
+	f.IPNetVar(ip, "address", *def, "IP Address")
+	return f
+}
+
+func TestIPNet(t *testing.T) {
+	testCases := []struct {
+		input    string
+		success  bool
+		expected string
+	}{
+		{"0.0.0.0/0", true, "0.0.0.0/0"},
+		{" 0.0.0.0/0 ", true, "0.0.0.0/0"},
+		{"1.2.3.4/8", true, "1.0.0.0/8"},
+		{"127.0.0.1/16", true, "127.0.0.0/16"},
+		{"255.255.255.255/19", true, "255.255.224.0/19"},
+		{"255.255.255.255/32", true, "255.255.255.255/32"},
+		{"", false, ""},
+		{"/0", false, ""},
+		{"0", false, ""},
+		{"0/0", false, ""},
+		{"localhost/0", false, ""},
+		{"0.0.0/4", false, ""},
+		{"0.0.0./8", false, ""},
+		{"0.0.0.0./12", false, ""},
+		{"0.0.0.256/16", false, ""},
+		{"0.0.0.0 /20", false, ""},
+		{"0.0.0.0/ 24", false, ""},
+		{"0 . 0 . 0 . 0 / 28", false, ""},
+		{"0.0.0.0/33", false, ""},
+	}
+
+	devnull, _ := os.Open(os.DevNull)
+	os.Stderr = devnull
+	for i := range testCases {
+		var addr net.IPNet
+		f := setUpIPNet(&addr)
+
+		tc := &testCases[i]
+
+		arg := fmt.Sprintf("--address=%s", tc.input)
+		err := f.Parse([]string{arg})
+		if err != nil && tc.success == true {
+			t.Errorf("expected success, got %q", err)
+			continue
+		} else if err == nil && tc.success == false {
+			t.Errorf("expected failure")
+			continue
+		} else if tc.success {
+			ip, err := f.GetIPNet("address")
+			if err != nil {
+				t.Errorf("Got error trying to fetch the IP flag: %v", err)
+			}
+			if ip.String() != tc.expected {
+				t.Errorf("expected %q, got %q", tc.expected, ip.String())
+			}
+		}
+	}
+}

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

@@ -0,0 +1,80 @@
+package pflag
+
+// -- string Value
+type stringValue string
+
+func newStringValue(val string, p *string) *stringValue {
+	*p = val
+	return (*stringValue)(p)
+}
+
+func (s *stringValue) Set(val string) error {
+	*s = stringValue(val)
+	return nil
+}
+func (s *stringValue) Type() string {
+	return "string"
+}
+
+func (s *stringValue) String() string { return string(*s) }
+
+func stringConv(sval string) (interface{}, error) {
+	return sval, nil
+}
+
+// GetString return the string value of a flag with the given name
+func (f *FlagSet) GetString(name string) (string, error) {
+	val, err := f.getFlagType(name, "string", stringConv)
+	if err != nil {
+		return "", err
+	}
+	return val.(string), nil
+}
+
+// StringVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a string variable in which to store the value of the flag.
+func (f *FlagSet) StringVar(p *string, name string, value string, usage string) {
+	f.VarP(newStringValue(value, p), name, "", usage)
+}
+
+// StringVarP is like StringVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringVarP(p *string, name, shorthand string, value string, usage string) {
+	f.VarP(newStringValue(value, p), name, shorthand, usage)
+}
+
+// StringVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a string variable in which to store the value of the flag.
+func StringVar(p *string, name string, value string, usage string) {
+	CommandLine.VarP(newStringValue(value, p), name, "", usage)
+}
+
+// StringVarP is like StringVar, but accepts a shorthand letter that can be used after a single dash.
+func StringVarP(p *string, name, shorthand string, value string, usage string) {
+	CommandLine.VarP(newStringValue(value, p), name, shorthand, usage)
+}
+
+// String defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a string variable that stores the value of the flag.
+func (f *FlagSet) String(name string, value string, usage string) *string {
+	p := new(string)
+	f.StringVarP(p, name, "", value, usage)
+	return p
+}
+
+// StringP is like String, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringP(name, shorthand string, value string, usage string) *string {
+	p := new(string)
+	f.StringVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// String defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a string variable that stores the value of the flag.
+func String(name string, value string, usage string) *string {
+	return CommandLine.StringP(name, "", value, usage)
+}
+
+// StringP is like String, but accepts a shorthand letter that can be used after a single dash.
+func StringP(name, shorthand string, value string, usage string) *string {
+	return CommandLine.StringP(name, shorthand, value, usage)
+}

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

@@ -0,0 +1,103 @@
+package pflag
+
+// -- stringArray Value
+type stringArrayValue struct {
+	value   *[]string
+	changed bool
+}
+
+func newStringArrayValue(val []string, p *[]string) *stringArrayValue {
+	ssv := new(stringArrayValue)
+	ssv.value = p
+	*ssv.value = val
+	return ssv
+}
+
+func (s *stringArrayValue) Set(val string) error {
+	if !s.changed {
+		*s.value = []string{val}
+		s.changed = true
+	} else {
+		*s.value = append(*s.value, val)
+	}
+	return nil
+}
+
+func (s *stringArrayValue) Type() string {
+	return "stringArray"
+}
+
+func (s *stringArrayValue) String() string {
+	str, _ := writeAsCSV(*s.value)
+	return "[" + str + "]"
+}
+
+func stringArrayConv(sval string) (interface{}, error) {
+	sval = sval[1 : len(sval)-1]
+	// An empty string would cause a array with one (empty) string
+	if len(sval) == 0 {
+		return []string{}, nil
+	}
+	return readAsCSV(sval)
+}
+
+// GetStringArray return the []string value of a flag with the given name
+func (f *FlagSet) GetStringArray(name string) ([]string, error) {
+	val, err := f.getFlagType(name, "stringArray", stringArrayConv)
+	if err != nil {
+		return []string{}, err
+	}
+	return val.([]string), nil
+}
+
+// StringArrayVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a []string variable in which to store the values of the multiple flags.
+// The value of each argument will not try to be separated by comma
+func (f *FlagSet) StringArrayVar(p *[]string, name string, value []string, usage string) {
+	f.VarP(newStringArrayValue(value, p), name, "", usage)
+}
+
+// StringArrayVarP is like StringArrayVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringArrayVarP(p *[]string, name, shorthand string, value []string, usage string) {
+	f.VarP(newStringArrayValue(value, p), name, shorthand, usage)
+}
+
+// StringArrayVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a []string variable in which to store the value of the flag.
+// The value of each argument will not try to be separated by comma
+func StringArrayVar(p *[]string, name string, value []string, usage string) {
+	CommandLine.VarP(newStringArrayValue(value, p), name, "", usage)
+}
+
+// StringArrayVarP is like StringArrayVar, but accepts a shorthand letter that can be used after a single dash.
+func StringArrayVarP(p *[]string, name, shorthand string, value []string, usage string) {
+	CommandLine.VarP(newStringArrayValue(value, p), name, shorthand, usage)
+}
+
+// StringArray defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a []string variable that stores the value of the flag.
+// The value of each argument will not try to be separated by comma
+func (f *FlagSet) StringArray(name string, value []string, usage string) *[]string {
+	p := []string{}
+	f.StringArrayVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// StringArrayP is like StringArray, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringArrayP(name, shorthand string, value []string, usage string) *[]string {
+	p := []string{}
+	f.StringArrayVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// StringArray defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a []string variable that stores the value of the flag.
+// The value of each argument will not try to be separated by comma
+func StringArray(name string, value []string, usage string) *[]string {
+	return CommandLine.StringArrayP(name, "", value, usage)
+}
+
+// StringArrayP is like StringArray, but accepts a shorthand letter that can be used after a single dash.
+func StringArrayP(name, shorthand string, value []string, usage string) *[]string {
+	return CommandLine.StringArrayP(name, shorthand, value, usage)
+}

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

@@ -0,0 +1,233 @@
+// 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 (
+	"fmt"
+	"testing"
+)
+
+func setUpSAFlagSet(sap *[]string) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	f.StringArrayVar(sap, "sa", []string{}, "Command separated list!")
+	return f
+}
+
+func setUpSAFlagSetWithDefault(sap *[]string) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	f.StringArrayVar(sap, "sa", []string{"default", "values"}, "Command separated list!")
+	return f
+}
+
+func TestEmptySA(t *testing.T) {
+	var sa []string
+	f := setUpSAFlagSet(&sa)
+	err := f.Parse([]string{})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	getSA, err := f.GetStringArray("sa")
+	if err != nil {
+		t.Fatal("got an error from GetStringArray():", err)
+	}
+	if len(getSA) != 0 {
+		t.Fatalf("got sa %v with len=%d but expected length=0", getSA, len(getSA))
+	}
+}
+
+func TestEmptySAValue(t *testing.T) {
+	var sa []string
+	f := setUpSAFlagSet(&sa)
+	err := f.Parse([]string{"--sa="})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	getSA, err := f.GetStringArray("sa")
+	if err != nil {
+		t.Fatal("got an error from GetStringArray():", err)
+	}
+	if len(getSA) != 0 {
+		t.Fatalf("got sa %v with len=%d but expected length=0", getSA, len(getSA))
+	}
+}
+
+func TestSADefault(t *testing.T) {
+	var sa []string
+	f := setUpSAFlagSetWithDefault(&sa)
+
+	vals := []string{"default", "values"}
+
+	err := f.Parse([]string{})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range sa {
+		if vals[i] != v {
+			t.Fatalf("expected sa[%d] to be %s but got: %s", i, vals[i], v)
+		}
+	}
+
+	getSA, err := f.GetStringArray("sa")
+	if err != nil {
+		t.Fatal("got an error from GetStringArray():", err)
+	}
+	for i, v := range getSA {
+		if vals[i] != v {
+			t.Fatalf("expected sa[%d] to be %s from GetStringArray but got: %s", i, vals[i], v)
+		}
+	}
+}
+
+func TestSAWithDefault(t *testing.T) {
+	var sa []string
+	f := setUpSAFlagSetWithDefault(&sa)
+
+	val := "one"
+	arg := fmt.Sprintf("--sa=%s", val)
+	err := f.Parse([]string{arg})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	if len(sa) != 1 {
+		t.Fatalf("expected number of values to be %d but %d", 1, len(sa))
+	}
+
+	if sa[0] != val {
+		t.Fatalf("expected value to be %s but got: %s", sa[0], val)
+	}
+
+	getSA, err := f.GetStringArray("sa")
+	if err != nil {
+		t.Fatal("got an error from GetStringArray():", err)
+	}
+
+	if len(getSA) != 1 {
+		t.Fatalf("expected number of values to be %d but %d", 1, len(getSA))
+	}
+
+	if getSA[0] != val {
+		t.Fatalf("expected value to be %s but got: %s", getSA[0], val)
+	}
+}
+
+func TestSACalledTwice(t *testing.T) {
+	var sa []string
+	f := setUpSAFlagSet(&sa)
+
+	in := []string{"one", "two"}
+	expected := []string{"one", "two"}
+	argfmt := "--sa=%s"
+	arg1 := fmt.Sprintf(argfmt, in[0])
+	arg2 := fmt.Sprintf(argfmt, in[1])
+	err := f.Parse([]string{arg1, arg2})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	if len(expected) != len(sa) {
+		t.Fatalf("expected number of sa to be %d but got: %d", len(expected), len(sa))
+	}
+	for i, v := range sa {
+		if expected[i] != v {
+			t.Fatalf("expected sa[%d] to be %s but got: %s", i, expected[i], v)
+		}
+	}
+
+	values, err := f.GetStringArray("sa")
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	if len(expected) != len(values) {
+		t.Fatalf("expected number of values to be %d but got: %d", len(expected), len(sa))
+	}
+	for i, v := range values {
+		if expected[i] != v {
+			t.Fatalf("expected got sa[%d] to be %s but got: %s", i, expected[i], v)
+		}
+	}
+}
+
+func TestSAWithSpecialChar(t *testing.T) {
+	var sa []string
+	f := setUpSAFlagSet(&sa)
+
+	in := []string{"one,two", `"three"`, `"four,five",six`, "seven eight"}
+	expected := []string{"one,two", `"three"`, `"four,five",six`, "seven eight"}
+	argfmt := "--sa=%s"
+	arg1 := fmt.Sprintf(argfmt, in[0])
+	arg2 := fmt.Sprintf(argfmt, in[1])
+	arg3 := fmt.Sprintf(argfmt, in[2])
+	arg4 := fmt.Sprintf(argfmt, in[3])
+	err := f.Parse([]string{arg1, arg2, arg3, arg4})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	if len(expected) != len(sa) {
+		t.Fatalf("expected number of sa to be %d but got: %d", len(expected), len(sa))
+	}
+	for i, v := range sa {
+		if expected[i] != v {
+			t.Fatalf("expected sa[%d] to be %s but got: %s", i, expected[i], v)
+		}
+	}
+
+	values, err := f.GetStringArray("sa")
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	if len(expected) != len(values) {
+		t.Fatalf("expected number of values to be %d but got: %d", len(expected), len(values))
+	}
+	for i, v := range values {
+		if expected[i] != v {
+			t.Fatalf("expected got sa[%d] to be %s but got: %s", i, expected[i], v)
+		}
+	}
+}
+
+func TestSAWithSquareBrackets(t *testing.T) {
+	var sa []string
+	f := setUpSAFlagSet(&sa)
+
+	in := []string{"][]-[", "[a-z]", "[a-z]+"}
+	expected := []string{"][]-[", "[a-z]", "[a-z]+"}
+	argfmt := "--sa=%s"
+	arg1 := fmt.Sprintf(argfmt, in[0])
+	arg2 := fmt.Sprintf(argfmt, in[1])
+	arg3 := fmt.Sprintf(argfmt, in[2])
+	err := f.Parse([]string{arg1, arg2, arg3})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	if len(expected) != len(sa) {
+		t.Fatalf("expected number of sa to be %d but got: %d", len(expected), len(sa))
+	}
+	for i, v := range sa {
+		if expected[i] != v {
+			t.Fatalf("expected sa[%d] to be %s but got: %s", i, expected[i], v)
+		}
+	}
+
+	values, err := f.GetStringArray("sa")
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	if len(expected) != len(values) {
+		t.Fatalf("expected number of values to be %d but got: %d", len(expected), len(values))
+	}
+	for i, v := range values {
+		if expected[i] != v {
+			t.Fatalf("expected got sa[%d] to be %s but got: %s", i, expected[i], v)
+		}
+	}
+}

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

@@ -0,0 +1,129 @@
+package pflag
+
+import (
+	"bytes"
+	"encoding/csv"
+	"strings"
+)
+
+// -- stringSlice Value
+type stringSliceValue struct {
+	value   *[]string
+	changed bool
+}
+
+func newStringSliceValue(val []string, p *[]string) *stringSliceValue {
+	ssv := new(stringSliceValue)
+	ssv.value = p
+	*ssv.value = val
+	return ssv
+}
+
+func readAsCSV(val string) ([]string, error) {
+	if val == "" {
+		return []string{}, nil
+	}
+	stringReader := strings.NewReader(val)
+	csvReader := csv.NewReader(stringReader)
+	return csvReader.Read()
+}
+
+func writeAsCSV(vals []string) (string, error) {
+	b := &bytes.Buffer{}
+	w := csv.NewWriter(b)
+	err := w.Write(vals)
+	if err != nil {
+		return "", err
+	}
+	w.Flush()
+	return strings.TrimSuffix(b.String(), "\n"), nil
+}
+
+func (s *stringSliceValue) Set(val string) error {
+	v, err := readAsCSV(val)
+	if err != nil {
+		return err
+	}
+	if !s.changed {
+		*s.value = v
+	} else {
+		*s.value = append(*s.value, v...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *stringSliceValue) Type() string {
+	return "stringSlice"
+}
+
+func (s *stringSliceValue) String() string {
+	str, _ := writeAsCSV(*s.value)
+	return "[" + str + "]"
+}
+
+func stringSliceConv(sval string) (interface{}, error) {
+	sval = sval[1 : len(sval)-1]
+	// An empty string would cause a slice with one (empty) string
+	if len(sval) == 0 {
+		return []string{}, nil
+	}
+	return readAsCSV(sval)
+}
+
+// GetStringSlice return the []string value of a flag with the given name
+func (f *FlagSet) GetStringSlice(name string) ([]string, error) {
+	val, err := f.getFlagType(name, "stringSlice", stringSliceConv)
+	if err != nil {
+		return []string{}, err
+	}
+	return val.([]string), nil
+}
+
+// StringSliceVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a []string variable in which to store the value of the flag.
+func (f *FlagSet) StringSliceVar(p *[]string, name string, value []string, usage string) {
+	f.VarP(newStringSliceValue(value, p), name, "", usage)
+}
+
+// StringSliceVarP is like StringSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringSliceVarP(p *[]string, name, shorthand string, value []string, usage string) {
+	f.VarP(newStringSliceValue(value, p), name, shorthand, usage)
+}
+
+// StringSliceVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a []string variable in which to store the value of the flag.
+func StringSliceVar(p *[]string, name string, value []string, usage string) {
+	CommandLine.VarP(newStringSliceValue(value, p), name, "", usage)
+}
+
+// StringSliceVarP is like StringSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func StringSliceVarP(p *[]string, name, shorthand string, value []string, usage string) {
+	CommandLine.VarP(newStringSliceValue(value, p), name, shorthand, usage)
+}
+
+// StringSlice defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a []string variable that stores the value of the flag.
+func (f *FlagSet) StringSlice(name string, value []string, usage string) *[]string {
+	p := []string{}
+	f.StringSliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// StringSliceP is like StringSlice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringSliceP(name, shorthand string, value []string, usage string) *[]string {
+	p := []string{}
+	f.StringSliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// StringSlice defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a []string variable that stores the value of the flag.
+func StringSlice(name string, value []string, usage string) *[]string {
+	return CommandLine.StringSliceP(name, "", value, usage)
+}
+
+// StringSliceP is like StringSlice, but accepts a shorthand letter that can be used after a single dash.
+func StringSliceP(name, shorthand string, value []string, usage string) *[]string {
+	return CommandLine.StringSliceP(name, shorthand, value, usage)
+}

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

@@ -0,0 +1,253 @@
+// 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 (
+	"fmt"
+	"strings"
+	"testing"
+)
+
+func setUpSSFlagSet(ssp *[]string) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	f.StringSliceVar(ssp, "ss", []string{}, "Command separated list!")
+	return f
+}
+
+func setUpSSFlagSetWithDefault(ssp *[]string) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	f.StringSliceVar(ssp, "ss", []string{"default", "values"}, "Command separated list!")
+	return f
+}
+
+func TestEmptySS(t *testing.T) {
+	var ss []string
+	f := setUpSSFlagSet(&ss)
+	err := f.Parse([]string{})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	getSS, err := f.GetStringSlice("ss")
+	if err != nil {
+		t.Fatal("got an error from GetStringSlice():", err)
+	}
+	if len(getSS) != 0 {
+		t.Fatalf("got ss %v with len=%d but expected length=0", getSS, len(getSS))
+	}
+}
+
+func TestEmptySSValue(t *testing.T) {
+	var ss []string
+	f := setUpSSFlagSet(&ss)
+	err := f.Parse([]string{"--ss="})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	getSS, err := f.GetStringSlice("ss")
+	if err != nil {
+		t.Fatal("got an error from GetStringSlice():", err)
+	}
+	if len(getSS) != 0 {
+		t.Fatalf("got ss %v with len=%d but expected length=0", getSS, len(getSS))
+	}
+}
+
+func TestSS(t *testing.T) {
+	var ss []string
+	f := setUpSSFlagSet(&ss)
+
+	vals := []string{"one", "two", "4", "3"}
+	arg := fmt.Sprintf("--ss=%s", strings.Join(vals, ","))
+	err := f.Parse([]string{arg})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range ss {
+		if vals[i] != v {
+			t.Fatalf("expected ss[%d] to be %s but got: %s", i, vals[i], v)
+		}
+	}
+
+	getSS, err := f.GetStringSlice("ss")
+	if err != nil {
+		t.Fatal("got an error from GetStringSlice():", err)
+	}
+	for i, v := range getSS {
+		if vals[i] != v {
+			t.Fatalf("expected ss[%d] to be %s from GetStringSlice but got: %s", i, vals[i], v)
+		}
+	}
+}
+
+func TestSSDefault(t *testing.T) {
+	var ss []string
+	f := setUpSSFlagSetWithDefault(&ss)
+
+	vals := []string{"default", "values"}
+
+	err := f.Parse([]string{})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range ss {
+		if vals[i] != v {
+			t.Fatalf("expected ss[%d] to be %s but got: %s", i, vals[i], v)
+		}
+	}
+
+	getSS, err := f.GetStringSlice("ss")
+	if err != nil {
+		t.Fatal("got an error from GetStringSlice():", err)
+	}
+	for i, v := range getSS {
+		if vals[i] != v {
+			t.Fatalf("expected ss[%d] to be %s from GetStringSlice but got: %s", i, vals[i], v)
+		}
+	}
+}
+
+func TestSSWithDefault(t *testing.T) {
+	var ss []string
+	f := setUpSSFlagSetWithDefault(&ss)
+
+	vals := []string{"one", "two", "4", "3"}
+	arg := fmt.Sprintf("--ss=%s", strings.Join(vals, ","))
+	err := f.Parse([]string{arg})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range ss {
+		if vals[i] != v {
+			t.Fatalf("expected ss[%d] to be %s but got: %s", i, vals[i], v)
+		}
+	}
+
+	getSS, err := f.GetStringSlice("ss")
+	if err != nil {
+		t.Fatal("got an error from GetStringSlice():", err)
+	}
+	for i, v := range getSS {
+		if vals[i] != v {
+			t.Fatalf("expected ss[%d] to be %s from GetStringSlice but got: %s", i, vals[i], v)
+		}
+	}
+}
+
+func TestSSCalledTwice(t *testing.T) {
+	var ss []string
+	f := setUpSSFlagSet(&ss)
+
+	in := []string{"one,two", "three"}
+	expected := []string{"one", "two", "three"}
+	argfmt := "--ss=%s"
+	arg1 := fmt.Sprintf(argfmt, in[0])
+	arg2 := fmt.Sprintf(argfmt, in[1])
+	err := f.Parse([]string{arg1, arg2})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	if len(expected) != len(ss) {
+		t.Fatalf("expected number of ss to be %d but got: %d", len(expected), len(ss))
+	}
+	for i, v := range ss {
+		if expected[i] != v {
+			t.Fatalf("expected ss[%d] to be %s but got: %s", i, expected[i], v)
+		}
+	}
+
+	values, err := f.GetStringSlice("ss")
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	if len(expected) != len(values) {
+		t.Fatalf("expected number of values to be %d but got: %d", len(expected), len(ss))
+	}
+	for i, v := range values {
+		if expected[i] != v {
+			t.Fatalf("expected got ss[%d] to be %s but got: %s", i, expected[i], v)
+		}
+	}
+}
+
+func TestSSWithComma(t *testing.T) {
+	var ss []string
+	f := setUpSSFlagSet(&ss)
+
+	in := []string{`"one,two"`, `"three"`, `"four,five",six`}
+	expected := []string{"one,two", "three", "four,five", "six"}
+	argfmt := "--ss=%s"
+	arg1 := fmt.Sprintf(argfmt, in[0])
+	arg2 := fmt.Sprintf(argfmt, in[1])
+	arg3 := fmt.Sprintf(argfmt, in[2])
+	err := f.Parse([]string{arg1, arg2, arg3})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	if len(expected) != len(ss) {
+		t.Fatalf("expected number of ss to be %d but got: %d", len(expected), len(ss))
+	}
+	for i, v := range ss {
+		if expected[i] != v {
+			t.Fatalf("expected ss[%d] to be %s but got: %s", i, expected[i], v)
+		}
+	}
+
+	values, err := f.GetStringSlice("ss")
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	if len(expected) != len(values) {
+		t.Fatalf("expected number of values to be %d but got: %d", len(expected), len(values))
+	}
+	for i, v := range values {
+		if expected[i] != v {
+			t.Fatalf("expected got ss[%d] to be %s but got: %s", i, expected[i], v)
+		}
+	}
+}
+
+func TestSSWithSquareBrackets(t *testing.T) {
+	var ss []string
+	f := setUpSSFlagSet(&ss)
+
+	in := []string{`"[a-z]"`, `"[a-z]+"`}
+	expected := []string{"[a-z]", "[a-z]+"}
+	argfmt := "--ss=%s"
+	arg1 := fmt.Sprintf(argfmt, in[0])
+	arg2 := fmt.Sprintf(argfmt, in[1])
+	err := f.Parse([]string{arg1, arg2})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	if len(expected) != len(ss) {
+		t.Fatalf("expected number of ss to be %d but got: %d", len(expected), len(ss))
+	}
+	for i, v := range ss {
+		if expected[i] != v {
+			t.Fatalf("expected ss[%d] to be %s but got: %s", i, expected[i], v)
+		}
+	}
+
+	values, err := f.GetStringSlice("ss")
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	if len(expected) != len(values) {
+		t.Fatalf("expected number of values to be %d but got: %d", len(expected), len(values))
+	}
+	for i, v := range values {
+		if expected[i] != v {
+			t.Fatalf("expected got ss[%d] to be %s but got: %s", i, expected[i], v)
+		}
+	}
+}

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

@@ -0,0 +1,88 @@
+package pflag
+
+import "strconv"
+
+// -- uint Value
+type uintValue uint
+
+func newUintValue(val uint, p *uint) *uintValue {
+	*p = val
+	return (*uintValue)(p)
+}
+
+func (i *uintValue) Set(s string) error {
+	v, err := strconv.ParseUint(s, 0, 64)
+	*i = uintValue(v)
+	return err
+}
+
+func (i *uintValue) Type() string {
+	return "uint"
+}
+
+func (i *uintValue) String() string { return strconv.FormatUint(uint64(*i), 10) }
+
+func uintConv(sval string) (interface{}, error) {
+	v, err := strconv.ParseUint(sval, 0, 0)
+	if err != nil {
+		return 0, err
+	}
+	return uint(v), nil
+}
+
+// GetUint return the uint value of a flag with the given name
+func (f *FlagSet) GetUint(name string) (uint, error) {
+	val, err := f.getFlagType(name, "uint", uintConv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(uint), nil
+}
+
+// UintVar defines a uint flag with specified name, default value, and usage string.
+// The argument p points to a uint variable in which to store the value of the flag.
+func (f *FlagSet) UintVar(p *uint, name string, value uint, usage string) {
+	f.VarP(newUintValue(value, p), name, "", usage)
+}
+
+// UintVarP is like UintVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) UintVarP(p *uint, name, shorthand string, value uint, usage string) {
+	f.VarP(newUintValue(value, p), name, shorthand, usage)
+}
+
+// UintVar defines a uint flag with specified name, default value, and usage string.
+// The argument p points to a uint  variable in which to store the value of the flag.
+func UintVar(p *uint, name string, value uint, usage string) {
+	CommandLine.VarP(newUintValue(value, p), name, "", usage)
+}
+
+// UintVarP is like UintVar, but accepts a shorthand letter that can be used after a single dash.
+func UintVarP(p *uint, name, shorthand string, value uint, usage string) {
+	CommandLine.VarP(newUintValue(value, p), name, shorthand, usage)
+}
+
+// Uint defines a uint flag with specified name, default value, and usage string.
+// The return value is the address of a uint  variable that stores the value of the flag.
+func (f *FlagSet) Uint(name string, value uint, usage string) *uint {
+	p := new(uint)
+	f.UintVarP(p, name, "", value, usage)
+	return p
+}
+
+// UintP is like Uint, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) UintP(name, shorthand string, value uint, usage string) *uint {
+	p := new(uint)
+	f.UintVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Uint defines a uint flag with specified name, default value, and usage string.
+// The return value is the address of a uint  variable that stores the value of the flag.
+func Uint(name string, value uint, usage string) *uint {
+	return CommandLine.UintP(name, "", value, usage)
+}
+
+// UintP is like Uint, but accepts a shorthand letter that can be used after a single dash.
+func UintP(name, shorthand string, value uint, usage string) *uint {
+	return CommandLine.UintP(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/uint16.go

@@ -0,0 +1,88 @@
+package pflag
+
+import "strconv"
+
+// -- uint16 value
+type uint16Value uint16
+
+func newUint16Value(val uint16, p *uint16) *uint16Value {
+	*p = val
+	return (*uint16Value)(p)
+}
+
+func (i *uint16Value) Set(s string) error {
+	v, err := strconv.ParseUint(s, 0, 16)
+	*i = uint16Value(v)
+	return err
+}
+
+func (i *uint16Value) Type() string {
+	return "uint16"
+}
+
+func (i *uint16Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
+
+func uint16Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseUint(sval, 0, 16)
+	if err != nil {
+		return 0, err
+	}
+	return uint16(v), nil
+}
+
+// GetUint16 return the uint16 value of a flag with the given name
+func (f *FlagSet) GetUint16(name string) (uint16, error) {
+	val, err := f.getFlagType(name, "uint16", uint16Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(uint16), nil
+}
+
+// Uint16Var defines a uint flag with specified name, default value, and usage string.
+// The argument p points to a uint variable in which to store the value of the flag.
+func (f *FlagSet) Uint16Var(p *uint16, name string, value uint16, usage string) {
+	f.VarP(newUint16Value(value, p), name, "", usage)
+}
+
+// Uint16VarP is like Uint16Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Uint16VarP(p *uint16, name, shorthand string, value uint16, usage string) {
+	f.VarP(newUint16Value(value, p), name, shorthand, usage)
+}
+
+// Uint16Var defines a uint flag with specified name, default value, and usage string.
+// The argument p points to a uint  variable in which to store the value of the flag.
+func Uint16Var(p *uint16, name string, value uint16, usage string) {
+	CommandLine.VarP(newUint16Value(value, p), name, "", usage)
+}
+
+// Uint16VarP is like Uint16Var, but accepts a shorthand letter that can be used after a single dash.
+func Uint16VarP(p *uint16, name, shorthand string, value uint16, usage string) {
+	CommandLine.VarP(newUint16Value(value, p), name, shorthand, usage)
+}
+
+// Uint16 defines a uint flag with specified name, default value, and usage string.
+// The return value is the address of a uint  variable that stores the value of the flag.
+func (f *FlagSet) Uint16(name string, value uint16, usage string) *uint16 {
+	p := new(uint16)
+	f.Uint16VarP(p, name, "", value, usage)
+	return p
+}
+
+// Uint16P is like Uint16, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Uint16P(name, shorthand string, value uint16, usage string) *uint16 {
+	p := new(uint16)
+	f.Uint16VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Uint16 defines a uint flag with specified name, default value, and usage string.
+// The return value is the address of a uint  variable that stores the value of the flag.
+func Uint16(name string, value uint16, usage string) *uint16 {
+	return CommandLine.Uint16P(name, "", value, usage)
+}
+
+// Uint16P is like Uint16, but accepts a shorthand letter that can be used after a single dash.
+func Uint16P(name, shorthand string, value uint16, usage string) *uint16 {
+	return CommandLine.Uint16P(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/uint32.go

@@ -0,0 +1,88 @@
+package pflag
+
+import "strconv"
+
+// -- uint32 value
+type uint32Value uint32
+
+func newUint32Value(val uint32, p *uint32) *uint32Value {
+	*p = val
+	return (*uint32Value)(p)
+}
+
+func (i *uint32Value) Set(s string) error {
+	v, err := strconv.ParseUint(s, 0, 32)
+	*i = uint32Value(v)
+	return err
+}
+
+func (i *uint32Value) Type() string {
+	return "uint32"
+}
+
+func (i *uint32Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
+
+func uint32Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseUint(sval, 0, 32)
+	if err != nil {
+		return 0, err
+	}
+	return uint32(v), nil
+}
+
+// GetUint32 return the uint32 value of a flag with the given name
+func (f *FlagSet) GetUint32(name string) (uint32, error) {
+	val, err := f.getFlagType(name, "uint32", uint32Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(uint32), nil
+}
+
+// Uint32Var defines a uint32 flag with specified name, default value, and usage string.
+// The argument p points to a uint32 variable in which to store the value of the flag.
+func (f *FlagSet) Uint32Var(p *uint32, name string, value uint32, usage string) {
+	f.VarP(newUint32Value(value, p), name, "", usage)
+}
+
+// Uint32VarP is like Uint32Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Uint32VarP(p *uint32, name, shorthand string, value uint32, usage string) {
+	f.VarP(newUint32Value(value, p), name, shorthand, usage)
+}
+
+// Uint32Var defines a uint32 flag with specified name, default value, and usage string.
+// The argument p points to a uint32  variable in which to store the value of the flag.
+func Uint32Var(p *uint32, name string, value uint32, usage string) {
+	CommandLine.VarP(newUint32Value(value, p), name, "", usage)
+}
+
+// Uint32VarP is like Uint32Var, but accepts a shorthand letter that can be used after a single dash.
+func Uint32VarP(p *uint32, name, shorthand string, value uint32, usage string) {
+	CommandLine.VarP(newUint32Value(value, p), name, shorthand, usage)
+}
+
+// Uint32 defines a uint32 flag with specified name, default value, and usage string.
+// The return value is the address of a uint32  variable that stores the value of the flag.
+func (f *FlagSet) Uint32(name string, value uint32, usage string) *uint32 {
+	p := new(uint32)
+	f.Uint32VarP(p, name, "", value, usage)
+	return p
+}
+
+// Uint32P is like Uint32, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Uint32P(name, shorthand string, value uint32, usage string) *uint32 {
+	p := new(uint32)
+	f.Uint32VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Uint32 defines a uint32 flag with specified name, default value, and usage string.
+// The return value is the address of a uint32  variable that stores the value of the flag.
+func Uint32(name string, value uint32, usage string) *uint32 {
+	return CommandLine.Uint32P(name, "", value, usage)
+}
+
+// Uint32P is like Uint32, but accepts a shorthand letter that can be used after a single dash.
+func Uint32P(name, shorthand string, value uint32, usage string) *uint32 {
+	return CommandLine.Uint32P(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/uint64.go

@@ -0,0 +1,88 @@
+package pflag
+
+import "strconv"
+
+// -- uint64 Value
+type uint64Value uint64
+
+func newUint64Value(val uint64, p *uint64) *uint64Value {
+	*p = val
+	return (*uint64Value)(p)
+}
+
+func (i *uint64Value) Set(s string) error {
+	v, err := strconv.ParseUint(s, 0, 64)
+	*i = uint64Value(v)
+	return err
+}
+
+func (i *uint64Value) Type() string {
+	return "uint64"
+}
+
+func (i *uint64Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
+
+func uint64Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseUint(sval, 0, 64)
+	if err != nil {
+		return 0, err
+	}
+	return uint64(v), nil
+}
+
+// GetUint64 return the uint64 value of a flag with the given name
+func (f *FlagSet) GetUint64(name string) (uint64, error) {
+	val, err := f.getFlagType(name, "uint64", uint64Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(uint64), nil
+}
+
+// Uint64Var defines a uint64 flag with specified name, default value, and usage string.
+// The argument p points to a uint64 variable in which to store the value of the flag.
+func (f *FlagSet) Uint64Var(p *uint64, name string, value uint64, usage string) {
+	f.VarP(newUint64Value(value, p), name, "", usage)
+}
+
+// Uint64VarP is like Uint64Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Uint64VarP(p *uint64, name, shorthand string, value uint64, usage string) {
+	f.VarP(newUint64Value(value, p), name, shorthand, usage)
+}
+
+// Uint64Var defines a uint64 flag with specified name, default value, and usage string.
+// The argument p points to a uint64 variable in which to store the value of the flag.
+func Uint64Var(p *uint64, name string, value uint64, usage string) {
+	CommandLine.VarP(newUint64Value(value, p), name, "", usage)
+}
+
+// Uint64VarP is like Uint64Var, but accepts a shorthand letter that can be used after a single dash.
+func Uint64VarP(p *uint64, name, shorthand string, value uint64, usage string) {
+	CommandLine.VarP(newUint64Value(value, p), name, shorthand, usage)
+}
+
+// Uint64 defines a uint64 flag with specified name, default value, and usage string.
+// The return value is the address of a uint64 variable that stores the value of the flag.
+func (f *FlagSet) Uint64(name string, value uint64, usage string) *uint64 {
+	p := new(uint64)
+	f.Uint64VarP(p, name, "", value, usage)
+	return p
+}
+
+// Uint64P is like Uint64, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Uint64P(name, shorthand string, value uint64, usage string) *uint64 {
+	p := new(uint64)
+	f.Uint64VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Uint64 defines a uint64 flag with specified name, default value, and usage string.
+// The return value is the address of a uint64 variable that stores the value of the flag.
+func Uint64(name string, value uint64, usage string) *uint64 {
+	return CommandLine.Uint64P(name, "", value, usage)
+}
+
+// Uint64P is like Uint64, but accepts a shorthand letter that can be used after a single dash.
+func Uint64P(name, shorthand string, value uint64, usage string) *uint64 {
+	return CommandLine.Uint64P(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/uint8.go

@@ -0,0 +1,88 @@
+package pflag
+
+import "strconv"
+
+// -- uint8 Value
+type uint8Value uint8
+
+func newUint8Value(val uint8, p *uint8) *uint8Value {
+	*p = val
+	return (*uint8Value)(p)
+}
+
+func (i *uint8Value) Set(s string) error {
+	v, err := strconv.ParseUint(s, 0, 8)
+	*i = uint8Value(v)
+	return err
+}
+
+func (i *uint8Value) Type() string {
+	return "uint8"
+}
+
+func (i *uint8Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
+
+func uint8Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseUint(sval, 0, 8)
+	if err != nil {
+		return 0, err
+	}
+	return uint8(v), nil
+}
+
+// GetUint8 return the uint8 value of a flag with the given name
+func (f *FlagSet) GetUint8(name string) (uint8, error) {
+	val, err := f.getFlagType(name, "uint8", uint8Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(uint8), nil
+}
+
+// Uint8Var defines a uint8 flag with specified name, default value, and usage string.
+// The argument p points to a uint8 variable in which to store the value of the flag.
+func (f *FlagSet) Uint8Var(p *uint8, name string, value uint8, usage string) {
+	f.VarP(newUint8Value(value, p), name, "", usage)
+}
+
+// Uint8VarP is like Uint8Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Uint8VarP(p *uint8, name, shorthand string, value uint8, usage string) {
+	f.VarP(newUint8Value(value, p), name, shorthand, usage)
+}
+
+// Uint8Var defines a uint8 flag with specified name, default value, and usage string.
+// The argument p points to a uint8 variable in which to store the value of the flag.
+func Uint8Var(p *uint8, name string, value uint8, usage string) {
+	CommandLine.VarP(newUint8Value(value, p), name, "", usage)
+}
+
+// Uint8VarP is like Uint8Var, but accepts a shorthand letter that can be used after a single dash.
+func Uint8VarP(p *uint8, name, shorthand string, value uint8, usage string) {
+	CommandLine.VarP(newUint8Value(value, p), name, shorthand, usage)
+}
+
+// Uint8 defines a uint8 flag with specified name, default value, and usage string.
+// The return value is the address of a uint8 variable that stores the value of the flag.
+func (f *FlagSet) Uint8(name string, value uint8, usage string) *uint8 {
+	p := new(uint8)
+	f.Uint8VarP(p, name, "", value, usage)
+	return p
+}
+
+// Uint8P is like Uint8, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Uint8P(name, shorthand string, value uint8, usage string) *uint8 {
+	p := new(uint8)
+	f.Uint8VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Uint8 defines a uint8 flag with specified name, default value, and usage string.
+// The return value is the address of a uint8 variable that stores the value of the flag.
+func Uint8(name string, value uint8, usage string) *uint8 {
+	return CommandLine.Uint8P(name, "", value, usage)
+}
+
+// Uint8P is like Uint8, but accepts a shorthand letter that can be used after a single dash.
+func Uint8P(name, shorthand string, value uint8, usage string) *uint8 {
+	return CommandLine.Uint8P(name, shorthand, value, usage)
+}