Add dependencies

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

Godeps/Godeps.json

@@ -0,0 +1,28 @@
+{
+	"ImportPath": "github.com/Luzifer/expose",
+	"GoVersion": "go1.8",
+	"GodepVersion": "v79",
+	"Deps": [
+		{
+			"ImportPath": "github.com/inconshreveable/mousetrap",
+			"Rev": "76626ae9c91c4f2a10f34cad8ce83ea42c93bb75"
+		},
+		{
+			"ImportPath": "github.com/mattn/go-runewidth",
+			"Comment": "v0.0.2-1-g14207d2",
+			"Rev": "14207d285c6c197daabb5c9793d63e7af9ab2d50"
+		},
+		{
+			"ImportPath": "github.com/olekukonko/tablewriter",
+			"Rev": "febf2d34b54a69ce7530036c7503b1c9fbfdf0bb"
+		},
+		{
+			"ImportPath": "github.com/spf13/cobra",
+			"Rev": "9c28e4bbd74e5c3ed7aacbc552b2cab7cfdfe744"
+		},
+		{
+			"ImportPath": "github.com/spf13/pflag",
+			"Rev": "c7e63cf4530bcd3ba943729cee0efeff2ebea63f"
+		}
+	]
+}

Godeps/Readme

@@ -0,0 +1,5 @@
+This directory tree is generated automatically by godep.
+
+Please do not edit.
+
+See https://github.com/tools/godep for more information.

vendor/github.com/inconshreveable/mousetrap/LICENSE

@@ -0,0 +1,13 @@
+Copyright 2014 Alan Shreve
+
+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/inconshreveable/mousetrap/README.md

@@ -0,0 +1,23 @@
+# mousetrap
+
+mousetrap is a tiny library that answers a single question.
+
+On a Windows machine, was the process invoked by someone double clicking on
+the executable file while browsing in explorer?
+
+### Motivation
+
+Windows developers unfamiliar with command line tools will often "double-click"
+the executable for a tool. Because most CLI tools print the help and then exit
+when invoked without arguments, this is often very frustrating for those users.
+
+mousetrap provides a way to detect these invocations so that you can provide
+more helpful behavior and instructions on how to run the CLI tool. To see what
+this looks like, both from an organizational and a technical perspective, see
+https://inconshreveable.com/09-09-2014/sweat-the-small-stuff/
+
+### The interface
+
+The library exposes a single interface:
+
+    func StartedByExplorer() (bool)

vendor/github.com/inconshreveable/mousetrap/trap_others.go

@@ -0,0 +1,15 @@
+// +build !windows
+
+package mousetrap
+
+// StartedByExplorer returns true if the program was invoked by the user
+// double-clicking on the executable from explorer.exe
+//
+// It is conservative and returns false if any of the internal calls fail.
+// It does not guarantee that the program was run from a terminal. It only can tell you
+// whether it was launched from explorer.exe
+//
+// On non-Windows platforms, it always returns false.
+func StartedByExplorer() bool {
+	return false
+}

vendor/github.com/inconshreveable/mousetrap/trap_windows.go

@@ -0,0 +1,98 @@
+// +build windows
+// +build !go1.4
+
+package mousetrap
+
+import (
+	"fmt"
+	"os"
+	"syscall"
+	"unsafe"
+)
+
+const (
+	// defined by the Win32 API
+	th32cs_snapprocess uintptr = 0x2
+)
+
+var (
+	kernel                   = syscall.MustLoadDLL("kernel32.dll")
+	CreateToolhelp32Snapshot = kernel.MustFindProc("CreateToolhelp32Snapshot")
+	Process32First           = kernel.MustFindProc("Process32FirstW")
+	Process32Next            = kernel.MustFindProc("Process32NextW")
+)
+
+// ProcessEntry32 structure defined by the Win32 API
+type processEntry32 struct {
+	dwSize              uint32
+	cntUsage            uint32
+	th32ProcessID       uint32
+	th32DefaultHeapID   int
+	th32ModuleID        uint32
+	cntThreads          uint32
+	th32ParentProcessID uint32
+	pcPriClassBase      int32
+	dwFlags             uint32
+	szExeFile           [syscall.MAX_PATH]uint16
+}
+
+func getProcessEntry(pid int) (pe *processEntry32, err error) {
+	snapshot, _, e1 := CreateToolhelp32Snapshot.Call(th32cs_snapprocess, uintptr(0))
+	if snapshot == uintptr(syscall.InvalidHandle) {
+		err = fmt.Errorf("CreateToolhelp32Snapshot: %v", e1)
+		return
+	}
+	defer syscall.CloseHandle(syscall.Handle(snapshot))
+
+	var processEntry processEntry32
+	processEntry.dwSize = uint32(unsafe.Sizeof(processEntry))
+	ok, _, e1 := Process32First.Call(snapshot, uintptr(unsafe.Pointer(&processEntry)))
+	if ok == 0 {
+		err = fmt.Errorf("Process32First: %v", e1)
+		return
+	}
+
+	for {
+		if processEntry.th32ProcessID == uint32(pid) {
+			pe = &processEntry
+			return
+		}
+
+		ok, _, e1 = Process32Next.Call(snapshot, uintptr(unsafe.Pointer(&processEntry)))
+		if ok == 0 {
+			err = fmt.Errorf("Process32Next: %v", e1)
+			return
+		}
+	}
+}
+
+func getppid() (pid int, err error) {
+	pe, err := getProcessEntry(os.Getpid())
+	if err != nil {
+		return
+	}
+
+	pid = int(pe.th32ParentProcessID)
+	return
+}
+
+// StartedByExplorer returns true if the program was invoked by the user double-clicking
+// on the executable from explorer.exe
+//
+// It is conservative and returns false if any of the internal calls fail.
+// It does not guarantee that the program was run from a terminal. It only can tell you
+// whether it was launched from explorer.exe
+func StartedByExplorer() bool {
+	ppid, err := getppid()
+	if err != nil {
+		return false
+	}
+
+	pe, err := getProcessEntry(ppid)
+	if err != nil {
+		return false
+	}
+
+	name := syscall.UTF16ToString(pe.szExeFile[:])
+	return name == "explorer.exe"
+}

vendor/github.com/inconshreveable/mousetrap/trap_windows_1.4.go

@@ -0,0 +1,46 @@
+// +build windows
+// +build go1.4
+
+package mousetrap
+
+import (
+	"os"
+	"syscall"
+	"unsafe"
+)
+
+func getProcessEntry(pid int) (*syscall.ProcessEntry32, error) {
+	snapshot, err := syscall.CreateToolhelp32Snapshot(syscall.TH32CS_SNAPPROCESS, 0)
+	if err != nil {
+		return nil, err
+	}
+	defer syscall.CloseHandle(snapshot)
+	var procEntry syscall.ProcessEntry32
+	procEntry.Size = uint32(unsafe.Sizeof(procEntry))
+	if err = syscall.Process32First(snapshot, &procEntry); err != nil {
+		return nil, err
+	}
+	for {
+		if procEntry.ProcessID == uint32(pid) {
+			return &procEntry, nil
+		}
+		err = syscall.Process32Next(snapshot, &procEntry)
+		if err != nil {
+			return nil, err
+		}
+	}
+}
+
+// StartedByExplorer returns true if the program was invoked by the user double-clicking
+// on the executable from explorer.exe
+//
+// It is conservative and returns false if any of the internal calls fail.
+// It does not guarantee that the program was run from a terminal. It only can tell you
+// whether it was launched from explorer.exe
+func StartedByExplorer() bool {
+	pe, err := getProcessEntry(os.Getppid())
+	if err != nil {
+		return false
+	}
+	return "explorer.exe" == syscall.UTF16ToString(pe.ExeFile[:])
+}

vendor/github.com/mattn/go-runewidth/.travis.yml

@@ -0,0 +1,8 @@
+language: go
+go:
+  - tip
+before_install:
+  - go get github.com/mattn/goveralls
+  - go get golang.org/x/tools/cmd/cover
+script:
+    - $HOME/gopath/bin/goveralls -repotoken lAKAWPzcGsD3A8yBX3BGGtRUdJ6CaGERL

vendor/github.com/mattn/go-runewidth/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Yasuhiro Matsumoto
+
+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/mattn/go-runewidth/README.mkd

@@ -0,0 +1,27 @@
+go-runewidth
+============
+
+[![Build Status](https://travis-ci.org/mattn/go-runewidth.png?branch=master)](https://travis-ci.org/mattn/go-runewidth)
+[![Coverage Status](https://coveralls.io/repos/mattn/go-runewidth/badge.png?branch=HEAD)](https://coveralls.io/r/mattn/go-runewidth?branch=HEAD)
+[![GoDoc](https://godoc.org/github.com/mattn/go-runewidth?status.svg)](http://godoc.org/github.com/mattn/go-runewidth)
+[![Go Report Card](https://goreportcard.com/badge/github.com/mattn/go-runewidth)](https://goreportcard.com/report/github.com/mattn/go-runewidth)
+
+Provides functions to get fixed width of the character or string.
+
+Usage
+-----
+
+```go
+runewidth.StringWidth("つのだ☆HIRO") == 12
+```
+
+
+Author
+------
+
+Yasuhiro Matsumoto
+
+License
+-------
+
+under the MIT License: http://mattn.mit-license.org/2013

vendor/github.com/mattn/go-runewidth/runewidth_js.go

@@ -0,0 +1,8 @@
+// +build js
+
+package runewidth
+
+func IsEastAsian() bool {
+	// TODO: Implement this for the web. Detect east asian in a compatible way, and return true.
+	return false
+}

vendor/github.com/mattn/go-runewidth/runewidth_posix.go

@@ -0,0 +1,77 @@
+// +build !windows,!js
+
+package runewidth
+
+import (
+	"os"
+	"regexp"
+	"strings"
+)
+
+var reLoc = regexp.MustCompile(`^[a-z][a-z][a-z]?(?:_[A-Z][A-Z])?\.(.+)`)
+
+var mblenTable = map[string]int{
+	"utf-8":   6,
+	"utf8":    6,
+	"jis":     8,
+	"eucjp":   3,
+	"euckr":   2,
+	"euccn":   2,
+	"sjis":    2,
+	"cp932":   2,
+	"cp51932": 2,
+	"cp936":   2,
+	"cp949":   2,
+	"cp950":   2,
+	"big5":    2,
+	"gbk":     2,
+	"gb2312":  2,
+}
+
+func isEastAsian(locale string) bool {
+	charset := strings.ToLower(locale)
+	r := reLoc.FindStringSubmatch(locale)
+	if len(r) == 2 {
+		charset = strings.ToLower(r[1])
+	}
+
+	if strings.HasSuffix(charset, "@cjk_narrow") {
+		return false
+	}
+
+	for pos, b := range []byte(charset) {
+		if b == '@' {
+			charset = charset[:pos]
+			break
+		}
+	}
+	max := 1
+	if m, ok := mblenTable[charset]; ok {
+		max = m
+	}
+	if max > 1 && (charset[0] != 'u' ||
+		strings.HasPrefix(locale, "ja") ||
+		strings.HasPrefix(locale, "ko") ||
+		strings.HasPrefix(locale, "zh")) {
+		return true
+	}
+	return false
+}
+
+// IsEastAsian return true if the current locale is CJK
+func IsEastAsian() bool {
+	locale := os.Getenv("LC_CTYPE")
+	if locale == "" {
+		locale = os.Getenv("LANG")
+	}
+
+	// ignore C locale
+	if locale == "POSIX" || locale == "C" {
+		return false
+	}
+	if len(locale) > 1 && locale[0] == 'C' && (locale[1] == '.' || locale[1] == '-') {
+		return false
+	}
+
+	return isEastAsian(locale)
+}

vendor/github.com/mattn/go-runewidth/runewidth_windows.go

@@ -0,0 +1,25 @@
+package runewidth
+
+import (
+	"syscall"
+)
+
+var (
+	kernel32               = syscall.NewLazyDLL("kernel32")
+	procGetConsoleOutputCP = kernel32.NewProc("GetConsoleOutputCP")
+)
+
+// IsEastAsian return true if the current locale is CJK
+func IsEastAsian() bool {
+	r1, _, _ := procGetConsoleOutputCP.Call()
+	if r1 == 0 {
+		return false
+	}
+
+	switch int(r1) {
+	case 932, 51932, 936, 949, 950:
+		return true
+	}
+
+	return false
+}

vendor/github.com/olekukonko/tablewriter/.travis.yml

@@ -0,0 +1,8 @@
+language: go
+
+go:
+  - 1.1
+  - 1.2
+  - 1.3
+  - 1.4
+  - tip

vendor/github.com/olekukonko/tablewriter/LICENCE.md

@@ -0,0 +1,19 @@
+Copyright (C) 2014 by Oleku Konko
+
+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/olekukonko/tablewriter/README.md

@@ -0,0 +1,204 @@
+ASCII Table Writer
+=========
+
+[![Build Status](https://travis-ci.org/olekukonko/tablewriter.png?branch=master)](https://travis-ci.org/olekukonko/tablewriter) [![Total views](https://sourcegraph.com/api/repos/github.com/olekukonko/tablewriter/counters/views.png)](https://sourcegraph.com/github.com/olekukonko/tablewriter)
+
+Generate ASCII table on the fly ...  Installation is simple as
+
+    go get  github.com/olekukonko/tablewriter
+
+
+#### Features
+- Automatic Padding
+- Support Multiple Lines
+- Supports Alignment
+- Support Custom Separators
+- Automatic Alignment of numbers & percentage
+- Write directly to http , file etc via `io.Writer`
+- Read directly from CSV file
+- Optional row line via `SetRowLine`
+- Normalise table header
+- Make CSV Headers optional
+- Enable or disable table border
+- Set custom footer support
+- Optional identical cells merging
+
+
+#### Example   1 - Basic
+```go
+data := [][]string{
+    []string{"A", "The Good", "500"},
+    []string{"B", "The Very very Bad Man", "288"},
+    []string{"C", "The Ugly", "120"},
+    []string{"D", "The Gopher", "800"},
+}
+
+table := tablewriter.NewWriter(os.Stdout)
+table.SetHeader([]string{"Name", "Sign", "Rating"})
+
+for _, v := range data {
+    table.Append(v)
+}
+table.Render() // Send output
+```
+
+##### Output  1
+```
++------+-----------------------+--------+
+| NAME |         SIGN          | RATING |
++------+-----------------------+--------+
+|  A   |       The Good        |    500 |
+|  B   | The Very very Bad Man |    288 |
+|  C   |       The Ugly        |    120 |
+|  D   |      The Gopher       |    800 |
++------+-----------------------+--------+
+```
+
+#### Example 2 - Without Border / Footer / Bulk Append
+```go
+data := [][]string{
+    []string{"1/1/2014", "Domain name", "2233", "$10.98"},
+    []string{"1/1/2014", "January Hosting", "2233", "$54.95"},
+    []string{"1/4/2014", "February Hosting", "2233", "$51.00"},
+    []string{"1/4/2014", "February Extra Bandwidth", "2233", "$30.00"},
+}
+
+table := tablewriter.NewWriter(os.Stdout)
+table.SetHeader([]string{"Date", "Description", "CV2", "Amount"})
+table.SetFooter([]string{"", "", "Total", "$146.93"}) // Add Footer
+table.SetBorder(false)                                // Set Border to false
+table.AppendBulk(data)                                // Add Bulk Data
+table.Render()
+```
+
+##### Output 2
+```
+
+    DATE   |       DESCRIPTION        |  CV2  | AMOUNT
++----------+--------------------------+-------+---------+
+  1/1/2014 | Domain name              |  2233 | $10.98
+  1/1/2014 | January Hosting          |  2233 | $54.95
+  1/4/2014 | February Hosting         |  2233 | $51.00
+  1/4/2014 | February Extra Bandwidth |  2233 | $30.00
++----------+--------------------------+-------+---------+
+                                        TOTAL | $146 93
+                                      +-------+---------+
+
+```
+
+
+#### Example 3 - CSV
+```go
+table, _ := tablewriter.NewCSV(os.Stdout, "test_info.csv", true)
+table.SetAlignment(tablewriter.ALIGN_LEFT)   // Set Alignment
+table.Render()
+```
+
+##### Output 3
+```
++----------+--------------+------+-----+---------+----------------+
+|  FIELD   |     TYPE     | NULL | KEY | DEFAULT |     EXTRA      |
++----------+--------------+------+-----+---------+----------------+
+| user_id  | smallint(5)  | NO   | PRI | NULL    | auto_increment |
+| username | varchar(10)  | NO   |     | NULL    |                |
+| password | varchar(100) | NO   |     | NULL    |                |
++----------+--------------+------+-----+---------+----------------+
+```
+
+#### Example 4  - Custom Separator
+```go
+table, _ := tablewriter.NewCSV(os.Stdout, "test.csv", true)
+table.SetRowLine(true)         // Enable row line
+
+// Change table lines
+table.SetCenterSeparator("*")
+table.SetColumnSeparator("‡")
+table.SetRowSeparator("-")
+
+table.SetAlignment(tablewriter.ALIGN_LEFT)
+table.Render()
+```
+
+##### Output 4
+```
+*------------*-----------*---------*
+╪ FIRST NAME ╪ LAST NAME ╪   SSN   ╪
+*------------*-----------*---------*
+╪ John       ╪ Barry     ╪ 123456  ╪
+*------------*-----------*---------*
+╪ Kathy      ╪ Smith     ╪ 687987  ╪
+*------------*-----------*---------*
+╪ Bob        ╪ McCornick ╪ 3979870 ╪
+*------------*-----------*---------*
+```
+
+##### Example 5 - Markdown Format
+```go
+data := [][]string{
+	[]string{"1/1/2014", "Domain name", "2233", "$10.98"},
+	[]string{"1/1/2014", "January Hosting", "2233", "$54.95"},
+	[]string{"1/4/2014", "February Hosting", "2233", "$51.00"},
+	[]string{"1/4/2014", "February Extra Bandwidth", "2233", "$30.00"},
+}
+
+table := tablewriter.NewWriter(os.Stdout)
+table.SetHeader([]string{"Date", "Description", "CV2", "Amount"})
+table.SetBorders(tablewriter.Border{Left: true, Top: false, Right: true, Bottom: false})
+table.SetCenterSeparator("|")
+table.AppendBulk(data) // Add Bulk Data
+table.Render()
+```
+
+##### Output 5
+```
+|   DATE   |       DESCRIPTION        | CV2  | AMOUNT |
+|----------|--------------------------|------|--------|
+| 1/1/2014 | Domain name              | 2233 | $10.98 |
+| 1/1/2014 | January Hosting          | 2233 | $54.95 |
+| 1/4/2014 | February Hosting         | 2233 | $51.00 |
+| 1/4/2014 | February Extra Bandwidth | 2233 | $30.00 |
+```
+
+#### Example 6  - Identical cells merging
+```go
+data := [][]string{
+  []string{"1/1/2014", "Domain name", "1234", "$10.98"},
+  []string{"1/1/2014", "January Hosting", "2345", "$54.95"},
+  []string{"1/4/2014", "February Hosting", "3456", "$51.00"},
+  []string{"1/4/2014", "February Extra Bandwidth", "4567", "$30.00"},
+}
+
+table := tablewriter.NewWriter(os.Stdout)
+table.SetHeader([]string{"Date", "Description", "CV2", "Amount"})
+table.SetFooter([]string{"", "", "Total", "$146.93"})
+table.SetAutoMergeCells(true)
+table.SetRowLine(true)
+table.AppendBulk(data)
+table.Render()
+```
+
+##### Output 6
+```
++----------+--------------------------+-------+---------+
+|   DATE   |       DESCRIPTION        |  CV2  | AMOUNT  |
++----------+--------------------------+-------+---------+
+| 1/1/2014 | Domain name              |  1234 | $10.98  |
++          +--------------------------+-------+---------+
+|          | January Hosting          |  2345 | $54.95  |
++----------+--------------------------+-------+---------+
+| 1/4/2014 | February Hosting         |  3456 | $51.00  |
++          +--------------------------+-------+---------+
+|          | February Extra Bandwidth |  4567 | $30.00  |
++----------+--------------------------+-------+---------+
+|                                       TOTAL | $146 93 |
++----------+--------------------------+-------+---------+
+```
+
+#### TODO
+- ~~Import Directly from CSV~~  - `done`
+- ~~Support for `SetFooter`~~  - `done`
+- ~~Support for `SetBorder`~~  - `done`
+- ~~Support table with uneven rows~~ - `done`
+- Support custom alignment
+- General Improvement & Optimisation
+- `NewHTML` Parse table from HTML

vendor/github.com/olekukonko/tablewriter/csv.go

@@ -0,0 +1,52 @@
+// Copyright 2014 Oleku Konko All rights reserved.
+// Use of this source code is governed by a MIT
+// license that can be found in the LICENSE file.
+
+// This module is a Table Writer  API for the Go Programming Language.
+// The protocols were written in pure Go and works on windows and unix systems
+
+package tablewriter
+
+import (
+	"encoding/csv"
+	"io"
+	"os"
+)
+
+// Start A new table by importing from a CSV file
+// Takes io.Writer and csv File name
+func NewCSV(writer io.Writer, fileName string, hasHeader bool) (*Table, error) {
+	file, err := os.Open(fileName)
+	if err != nil {
+		return &Table{}, err
+	}
+	defer file.Close()
+	csvReader := csv.NewReader(file)
+	t, err := NewCSVReader(writer, csvReader, hasHeader)
+	return t, err
+}
+
+//  Start a New Table Writer with csv.Reader
+// This enables customisation such as reader.Comma = ';'
+// See http://golang.org/src/pkg/encoding/csv/reader.go?s=3213:3671#L94
+func NewCSVReader(writer io.Writer, csvReader *csv.Reader, hasHeader bool) (*Table, error) {
+	t := NewWriter(writer)
+	if hasHeader {
+		// Read the first row
+		headers, err := csvReader.Read()
+		if err != nil {
+			return &Table{}, err
+		}
+		t.SetHeader(headers)
+	}
+	for {
+		record, err := csvReader.Read()
+		if err == io.EOF {
+			break
+		} else if err != nil {
+			return &Table{}, err
+		}
+		t.Append(record)
+	}
+	return t, nil
+}

vendor/github.com/olekukonko/tablewriter/table.go

@@ -0,0 +1,662 @@
+// Copyright 2014 Oleku Konko All rights reserved.
+// Use of this source code is governed by a MIT
+// license that can be found in the LICENSE file.
+
+// This module is a Table Writer  API for the Go Programming Language.
+// The protocols were written in pure Go and works on windows and unix systems
+
+// Create & Generate text based table
+package tablewriter
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"regexp"
+	"strings"
+)
+
+const (
+	MAX_ROW_WIDTH = 30
+)
+
+const (
+	CENTER  = "+"
+	ROW     = "-"
+	COLUMN  = "|"
+	SPACE   = " "
+	NEWLINE = "\n"
+)
+
+const (
+	ALIGN_DEFAULT = iota
+	ALIGN_CENTER
+	ALIGN_RIGHT
+	ALIGN_LEFT
+)
+
+var (
+	decimal = regexp.MustCompile(`^-*\d*\.?\d*$`)
+	percent = regexp.MustCompile(`^-*\d*\.?\d*$%$`)
+)
+
+type Border struct {
+	Left   bool
+	Right  bool
+	Top    bool
+	Bottom bool
+}
+
+type Table struct {
+	out            io.Writer
+	rows           [][]string
+	lines          [][][]string
+	cs             map[int]int
+	rs             map[int]int
+	headers        []string
+	footers        []string
+	autoFmt        bool
+	autoWrap       bool
+	mW             int
+	pCenter        string
+	pRow           string
+	pColumn        string
+	tColumn        int
+	tRow           int
+	hAlign         int
+	fAlign         int
+	align          int
+	newLine        string
+	rowLine        bool
+	autoMergeCells bool
+	hdrLine        bool
+	borders        Border
+	colSize        int
+}
+
+// Start New Table
+// Take io.Writer Directly
+func NewWriter(writer io.Writer) *Table {
+	t := &Table{
+		out:      writer,
+		rows:     [][]string{},
+		lines:    [][][]string{},
+		cs:       make(map[int]int),
+		rs:       make(map[int]int),
+		headers:  []string{},
+		footers:  []string{},
+		autoFmt:  true,
+		autoWrap: true,
+		mW:       MAX_ROW_WIDTH,
+		pCenter:  CENTER,
+		pRow:     ROW,
+		pColumn:  COLUMN,
+		tColumn:  -1,
+		tRow:     -1,
+		hAlign:   ALIGN_DEFAULT,
+		fAlign:   ALIGN_DEFAULT,
+		align:    ALIGN_DEFAULT,
+		newLine:  NEWLINE,
+		rowLine:  false,
+		hdrLine:  true,
+		borders:  Border{Left: true, Right: true, Bottom: true, Top: true},
+		colSize:  -1}
+	return t
+}
+
+// Render table output
+func (t Table) Render() {
+	if t.borders.Top {
+		t.printLine(true)
+	}
+	t.printHeading()
+	if t.autoMergeCells {
+		t.printRowsMergeCells()
+	} else {
+		t.printRows()
+	}
+
+	if !t.rowLine && t.borders.Bottom {
+		t.printLine(true)
+	}
+	t.printFooter()
+
+}
+
+// Set table header
+func (t *Table) SetHeader(keys []string) {
+	t.colSize = len(keys)
+	for i, v := range keys {
+		t.parseDimension(v, i, -1)
+		t.headers = append(t.headers, v)
+	}
+}
+
+// Set table Footer
+func (t *Table) SetFooter(keys []string) {
+	//t.colSize = len(keys)
+	for i, v := range keys {
+		t.parseDimension(v, i, -1)
+		t.footers = append(t.footers, v)
+	}
+}
+
+// Turn header autoformatting on/off. Default is on (true).
+func (t *Table) SetAutoFormatHeaders(auto bool) {
+	t.autoFmt = auto
+}
+
+// Turn automatic multiline text adjustment on/off. Default is on (true).
+func (t *Table) SetAutoWrapText(auto bool) {
+	t.autoWrap = auto
+}
+
+// Set the Default column width
+func (t *Table) SetColWidth(width int) {
+	t.mW = width
+}
+
+// Set the Column Separator
+func (t *Table) SetColumnSeparator(sep string) {
+	t.pColumn = sep
+}
+
+// Set the Row Separator
+func (t *Table) SetRowSeparator(sep string) {
+	t.pRow = sep
+}
+
+// Set the center Separator
+func (t *Table) SetCenterSeparator(sep string) {
+	t.pCenter = sep
+}
+
+// Set Header Alignment
+func (t *Table) SetHeaderAlignment(hAlign int) {
+	t.hAlign = hAlign
+}
+
+// Set Footer Alignment
+func (t *Table) SetFooterAlignment(fAlign int) {
+	t.fAlign = fAlign
+}
+
+// Set Table Alignment
+func (t *Table) SetAlignment(align int) {
+	t.align = align
+}
+
+// Set New Line
+func (t *Table) SetNewLine(nl string) {
+	t.newLine = nl
+}
+
+// Set Header Line
+// This would enable / disable a line after the header
+func (t *Table) SetHeaderLine(line bool) {
+	t.hdrLine = line
+}
+
+// Set Row Line
+// This would enable / disable a line on each row of the table
+func (t *Table) SetRowLine(line bool) {
+	t.rowLine = line
+}
+
+// Set Auto Merge Cells
+// This would enable / disable the merge of cells with identical values
+func (t *Table) SetAutoMergeCells(auto bool) {
+	t.autoMergeCells = auto
+}
+
+// Set Table Border
+// This would enable / disable line around the table
+func (t *Table) SetBorder(border bool) {
+	t.SetBorders(Border{border, border, border, border})
+}
+
+func (t *Table) SetBorders(border Border) {
+	t.borders = border
+}
+
+// Append row to table
+func (t *Table) Append(row []string) {
+	rowSize := len(t.headers)
+	if rowSize > t.colSize {
+		t.colSize = rowSize
+	}
+
+	n := len(t.lines)
+	line := [][]string{}
+	for i, v := range row {
+
+		// Detect string  width
+		// Detect String height
+		// Break strings into words
+		out := t.parseDimension(v, i, n)
+
+		// Append broken words
+		line = append(line, out)
+	}
+	t.lines = append(t.lines, line)
+}
+
+// Allow Support for Bulk Append
+// Eliminates repeated for loops
+func (t *Table) AppendBulk(rows [][]string) {
+	for _, row := range rows {
+		t.Append(row)
+	}
+}
+
+// Print line based on row width
+func (t Table) printLine(nl bool) {
+	fmt.Fprint(t.out, t.pCenter)
+	for i := 0; i < len(t.cs); i++ {
+		v := t.cs[i]
+		fmt.Fprintf(t.out, "%s%s%s%s",
+			t.pRow,
+			strings.Repeat(string(t.pRow), v),
+			t.pRow,
+			t.pCenter)
+	}
+	if nl {
+		fmt.Fprint(t.out, t.newLine)
+	}
+}
+
+// Print line based on row width with our without cell separator
+func (t Table) printLineOptionalCellSeparators(nl bool, displayCellSeparator []bool) {
+	fmt.Fprint(t.out, t.pCenter)
+	for i := 0; i < len(t.cs); i++ {
+		v := t.cs[i]
+		if i > len(displayCellSeparator) || displayCellSeparator[i] {
+			// Display the cell separator
+			fmt.Fprintf(t.out, "%s%s%s%s",
+				t.pRow,
+				strings.Repeat(string(t.pRow), v),
+				t.pRow,
+				t.pCenter)
+		} else {
+			// Don't display the cell separator for this cell
+			fmt.Fprintf(t.out, "%s%s",
+				strings.Repeat(" ", v+2),
+				t.pCenter)
+		}
+	}
+	if nl {
+		fmt.Fprint(t.out, t.newLine)
+	}
+}
+
+// Return the PadRight function if align is left, PadLeft if align is right,
+// and Pad by default
+func pad(align int) func(string, string, int) string {
+	padFunc := Pad
+	switch align {
+	case ALIGN_LEFT:
+		padFunc = PadRight
+	case ALIGN_RIGHT:
+		padFunc = PadLeft
+	}
+	return padFunc
+}
+
+// Print heading information
+func (t Table) printHeading() {
+	// Check if headers is available
+	if len(t.headers) < 1 {
+		return
+	}
+
+	// Check if border is set
+	// Replace with space if not set
+	fmt.Fprint(t.out, ConditionString(t.borders.Left, t.pColumn, SPACE))
+
+	// Identify last column
+	end := len(t.cs) - 1
+
+	// Get pad function
+	padFunc := pad(t.hAlign)
+
+	// Print Heading column
+	for i := 0; i <= end; i++ {
+		v := t.cs[i]
+		h := t.headers[i]
+		if t.autoFmt {
+			h = Title(h)
+		}
+		pad := ConditionString((i == end && !t.borders.Left), SPACE, t.pColumn)
+		fmt.Fprintf(t.out, " %s %s",
+			padFunc(h, SPACE, v),
+			pad)
+	}
+	// Next line
+	fmt.Fprint(t.out, t.newLine)
+	if t.hdrLine {
+		t.printLine(true)
+	}
+}
+
+// Print heading information
+func (t Table) printFooter() {
+	// Check if headers is available
+	if len(t.footers) < 1 {
+		return
+	}
+
+	// Only print line if border is not set
+	if !t.borders.Bottom {
+		t.printLine(true)
+	}
+	// Check if border is set
+	// Replace with space if not set
+	fmt.Fprint(t.out, ConditionString(t.borders.Bottom, t.pColumn, SPACE))
+
+	// Identify last column
+	end := len(t.cs) - 1
+
+	// Get pad function
+	padFunc := pad(t.fAlign)
+
+	// Print Heading column
+	for i := 0; i <= end; i++ {
+		v := t.cs[i]
+		f := t.footers[i]
+		if t.autoFmt {
+			f = Title(f)
+		}
+		pad := ConditionString((i == end && !t.borders.Top), SPACE, t.pColumn)
+
+		if len(t.footers[i]) == 0 {
+			pad = SPACE
+		}
+		fmt.Fprintf(t.out, " %s %s",
+			padFunc(f, SPACE, v),
+			pad)
+	}
+	// Next line
+	fmt.Fprint(t.out, t.newLine)
+	//t.printLine(true)
+
+	hasPrinted := false
+
+	for i := 0; i <= end; i++ {
+		v := t.cs[i]
+		pad := t.pRow
+		center := t.pCenter
+		length := len(t.footers[i])
+
+		if length > 0 {
+			hasPrinted = true
+		}
+
+		// Set center to be space if length is 0
+		if length == 0 && !t.borders.Right {
+			center = SPACE
+		}
+
+		// Print first junction
+		if i == 0 {
+			fmt.Fprint(t.out, center)
+		}
+
+		// Pad With space of length is 0
+		if length == 0 {
+			pad = SPACE
+		}
+		// Ignore left space of it has printed before
+		if hasPrinted || t.borders.Left {
+			pad = t.pRow
+			center = t.pCenter
+		}
+
+		// Change Center start position
+		if center == SPACE {
+			if i < end && len(t.footers[i+1]) != 0 {
+				center = t.pCenter
+			}
+		}
+
+		// Print the footer
+		fmt.Fprintf(t.out, "%s%s%s%s",
+			pad,
+			strings.Repeat(string(pad), v),
+			pad,
+			center)
+
+	}
+
+	fmt.Fprint(t.out, t.newLine)
+
+}
+
+func (t Table) printRows() {
+	for i, lines := range t.lines {
+		t.printRow(lines, i)
+	}
+
+}
+
+// Print Row Information
+// Adjust column alignment based on type
+
+func (t Table) printRow(columns [][]string, colKey int) {
+	// Get Maximum Height
+	max := t.rs[colKey]
+	total := len(columns)
+
+	// TODO Fix uneven col size
+	// if total < t.colSize {
+	//	for n := t.colSize - total; n < t.colSize ; n++ {
+	//		columns = append(columns, []string{SPACE})
+	//		t.cs[n] = t.mW
+	//	}
+	//}
+
+	// Pad Each Height
+	// pads := []int{}
+	pads := []int{}
+
+	for i, line := range columns {
+		length := len(line)
+		pad := max - length
+		pads = append(pads, pad)
+		for n := 0; n < pad; n++ {
+			columns[i] = append(columns[i], "  ")
+		}
+	}
+	//fmt.Println(max, "\n")
+	for x := 0; x < max; x++ {
+		for y := 0; y < total; y++ {
+
+			// Check if border is set
+			fmt.Fprint(t.out, ConditionString((!t.borders.Left && y == 0), SPACE, t.pColumn))
+
+			fmt.Fprintf(t.out, SPACE)
+			str := columns[y][x]
+
+			// This would print alignment
+			// Default alignment  would use multiple configuration
+			switch t.align {
+			case ALIGN_CENTER: //
+				fmt.Fprintf(t.out, "%s", Pad(str, SPACE, t.cs[y]))
+			case ALIGN_RIGHT:
+				fmt.Fprintf(t.out, "%s", PadLeft(str, SPACE, t.cs[y]))
+			case ALIGN_LEFT:
+				fmt.Fprintf(t.out, "%s", PadRight(str, SPACE, t.cs[y]))
+			default:
+				if decimal.MatchString(strings.TrimSpace(str)) || percent.MatchString(strings.TrimSpace(str)) {
+					fmt.Fprintf(t.out, "%s", PadLeft(str, SPACE, t.cs[y]))
+				} else {
+					fmt.Fprintf(t.out, "%s", PadRight(str, SPACE, t.cs[y]))
+
+					// TODO Custom alignment per column
+					//if max == 1 || pads[y] > 0 {
+					//	fmt.Fprintf(t.out, "%s", Pad(str, SPACE, t.cs[y]))
+					//} else {
+					//	fmt.Fprintf(t.out, "%s", PadRight(str, SPACE, t.cs[y]))
+					//}
+
+				}
+			}
+			fmt.Fprintf(t.out, SPACE)
+		}
+		// Check if border is set
+		// Replace with space if not set
+		fmt.Fprint(t.out, ConditionString(t.borders.Left, t.pColumn, SPACE))
+		fmt.Fprint(t.out, t.newLine)
+	}
+
+	if t.rowLine {
+		t.printLine(true)
+	}
+}
+
+// Print the rows of the table and merge the cells that are identical
+func (t Table) printRowsMergeCells() {
+	var previousLine []string
+	var displayCellBorder []bool
+	var tmpWriter bytes.Buffer
+	for i, lines := range t.lines {
+		// We store the display of the current line in a tmp writer, as we need to know which border needs to be print above
+		previousLine, displayCellBorder = t.printRowMergeCells(&tmpWriter, lines, i, previousLine)
+		if i > 0 { //We don't need to print borders above first line
+			if t.rowLine {
+				t.printLineOptionalCellSeparators(true, displayCellBorder)
+			}
+		}
+		tmpWriter.WriteTo(t.out)
+	}
+	//Print the end of the table
+	if t.rowLine {
+		t.printLine(true)
+	}
+}
+
+// Print Row Information to a writer and merge identical cells.
+// Adjust column alignment based on type
+
+func (t Table) printRowMergeCells(writer io.Writer, columns [][]string, colKey int, previousLine []string) ([]string, []bool) {
+	// Get Maximum Height
+	max := t.rs[colKey]
+	total := len(columns)
+
+	// Pad Each Height
+	pads := []int{}
+
+	for i, line := range columns {
+		length := len(line)
+		pad := max - length
+		pads = append(pads, pad)
+		for n := 0; n < pad; n++ {
+			columns[i] = append(columns[i], "  ")
+		}
+	}
+
+	var displayCellBorder []bool
+	for x := 0; x < max; x++ {
+		for y := 0; y < total; y++ {
+
+			// Check if border is set
+			fmt.Fprint(writer, ConditionString((!t.borders.Left && y == 0), SPACE, t.pColumn))
+
+			fmt.Fprintf(writer, SPACE)
+
+			str := columns[y][x]
+
+			if t.autoMergeCells {
+				//Store the full line to merge mutli-lines cells
+				fullLine := strings.Join(columns[y], " ")
+				if len(previousLine) > y && fullLine == previousLine[y] && fullLine != "" {
+					// If this cell is identical to the one above but not empty, we don't display the border and keep the cell empty.
+					displayCellBorder = append(displayCellBorder, false)
+					str = ""
+				} else {
+					// First line or different content, keep the content and print the cell border
+					displayCellBorder = append(displayCellBorder, true)
+				}
+			}
+
+			// This would print alignment
+			// Default alignment  would use multiple configuration
+			switch t.align {
+			case ALIGN_CENTER: //
+				fmt.Fprintf(writer, "%s", Pad(str, SPACE, t.cs[y]))
+			case ALIGN_RIGHT:
+				fmt.Fprintf(writer, "%s", PadLeft(str, SPACE, t.cs[y]))
+			case ALIGN_LEFT:
+				fmt.Fprintf(writer, "%s", PadRight(str, SPACE, t.cs[y]))
+			default:
+				if decimal.MatchString(strings.TrimSpace(str)) || percent.MatchString(strings.TrimSpace(str)) {
+					fmt.Fprintf(writer, "%s", PadLeft(str, SPACE, t.cs[y]))
+				} else {
+					fmt.Fprintf(writer, "%s", PadRight(str, SPACE, t.cs[y]))
+				}
+			}
+			fmt.Fprintf(writer, SPACE)
+		}
+		// Check if border is set
+		// Replace with space if not set
+		fmt.Fprint(writer, ConditionString(t.borders.Left, t.pColumn, SPACE))
+		fmt.Fprint(writer, t.newLine)
+	}
+
+	//The new previous line is the current one
+	previousLine = make([]string, total)
+	for y := 0; y < total; y++ {
+		previousLine[y] = strings.Join(columns[y], " ") //Store the full line for multi-lines cells
+	}
+	//Returns the newly added line and wether or not a border should be displayed above.
+	return previousLine, displayCellBorder
+}
+
+func (t *Table) parseDimension(str string, colKey, rowKey int) []string {
+	var (
+		raw []string
+		max int
+	)
+	w := DisplayWidth(str)
+	// Calculate Width
+	// Check if with is grater than maximum width
+	if w > t.mW {
+		w = t.mW
+	}
+
+	// Check if width exists
+	v, ok := t.cs[colKey]
+	if !ok || v < w || v == 0 {
+		t.cs[colKey] = w
+	}
+
+	if rowKey == -1 {
+		return raw
+	}
+	// Calculate Height
+	if t.autoWrap {
+		raw, _ = WrapString(str, t.cs[colKey])
+	} else {
+		raw = getLines(str)
+	}
+
+	for _, line := range raw {
+		if w := DisplayWidth(line); w > max {
+			max = w
+		}
+	}
+
+	// Make sure the with is the same length as maximum word
+	// Important for cases where the width is smaller than maxu word
+	if max > t.cs[colKey] {
+		t.cs[colKey] = max
+	}
+
+	h := len(raw)
+	v, ok = t.rs[rowKey]
+
+	if !ok || v < h || v == 0 {
+		t.rs[rowKey] = h
+	}
+	//fmt.Printf("Raw %+v %d\n", raw, len(raw))
+	return raw
+}

vendor/github.com/olekukonko/tablewriter/test.csv

@@ -0,0 +1,4 @@
+first_name,last_name,ssn
+John,Barry,123456
+Kathy,Smith,687987
+Bob,McCornick,3979870

vendor/github.com/olekukonko/tablewriter/test_info.csv

@@ -0,0 +1,4 @@
+Field,Type,Null,Key,Default,Extra
+user_id,smallint(5),NO,PRI,NULL,auto_increment
+username,varchar(10),NO,,NULL, 
+password,varchar(100),NO,,NULL, 

vendor/github.com/olekukonko/tablewriter/util.go

@@ -0,0 +1,72 @@
+// Copyright 2014 Oleku Konko All rights reserved.
+// Use of this source code is governed by a MIT
+// license that can be found in the LICENSE file.
+
+// This module is a Table Writer  API for the Go Programming Language.
+// The protocols were written in pure Go and works on windows and unix systems
+
+package tablewriter
+
+import (
+	"math"
+	"regexp"
+	"strings"
+
+	"github.com/mattn/go-runewidth"
+)
+
+var ansi = regexp.MustCompile("\033\\[(?:[0-9]{1,3}(?:;[0-9]{1,3})*)?[m|K]")
+
+func DisplayWidth(str string) int {
+	return runewidth.StringWidth(ansi.ReplaceAllLiteralString(str, ""))
+}
+
+// Simple Condition for string
+// Returns value based on condition
+func ConditionString(cond bool, valid, inValid string) string {
+	if cond {
+		return valid
+	}
+	return inValid
+}
+
+// Format Table Header
+// Replace _ , . and spaces
+func Title(name string) string {
+	name = strings.Replace(name, "_", " ", -1)
+	name = strings.Replace(name, ".", " ", -1)
+	name = strings.TrimSpace(name)
+	return strings.ToUpper(name)
+}
+
+// Pad String
+// Attempts to play string in the center
+func Pad(s, pad string, width int) string {
+	gap := width - DisplayWidth(s)
+	if gap > 0 {
+		gapLeft := int(math.Ceil(float64(gap / 2)))
+		gapRight := gap - gapLeft
+		return strings.Repeat(string(pad), gapLeft) + s + strings.Repeat(string(pad), gapRight)
+	}
+	return s
+}
+
+// Pad String Right position
+// This would pace string at the left side fo the screen
+func PadRight(s, pad string, width int) string {
+	gap := width - DisplayWidth(s)
+	if gap > 0 {
+		return s + strings.Repeat(string(pad), gap)
+	}
+	return s
+}
+
+// Pad String Left position
+// This would pace string at the right side fo the screen
+func PadLeft(s, pad string, width int) string {
+	gap := width - DisplayWidth(s)
+	if gap > 0 {
+		return strings.Repeat(string(pad), gap) + s
+	}
+	return s
+}

vendor/github.com/olekukonko/tablewriter/wrap.go

@@ -0,0 +1,103 @@
+// Copyright 2014 Oleku Konko All rights reserved.
+// Use of this source code is governed by a MIT
+// license that can be found in the LICENSE file.
+
+// This module is a Table Writer  API for the Go Programming Language.
+// The protocols were written in pure Go and works on windows and unix systems
+
+package tablewriter
+
+import (
+	"math"
+	"strings"
+	"unicode/utf8"
+)
+
+var (
+	nl = "\n"
+	sp = " "
+)
+
+const defaultPenalty = 1e5
+
+// Wrap wraps s into a paragraph of lines of length lim, with minimal
+// raggedness.
+func WrapString(s string, lim int) ([]string, int) {
+	words := strings.Split(strings.Replace(s, nl, sp, -1), sp)
+	var lines []string
+	max := 0
+	for _, v := range words {
+		max = len(v)
+		if max > lim {
+			lim = max
+		}
+	}
+	for _, line := range WrapWords(words, 1, lim, defaultPenalty) {
+		lines = append(lines, strings.Join(line, sp))
+	}
+	return lines, lim
+}
+
+// WrapWords is the low-level line-breaking algorithm, useful if you need more
+// control over the details of the text wrapping process. For most uses,
+// WrapString will be sufficient and more convenient.
+//
+// WrapWords splits a list of words into lines with minimal "raggedness",
+// treating each rune as one unit, accounting for spc units between adjacent
+// words on each line, and attempting to limit lines to lim units. Raggedness
+// is the total error over all lines, where error is the square of the
+// difference of the length of the line and lim. Too-long lines (which only
+// happen when a single word is longer than lim units) have pen penalty units
+// added to the error.
+func WrapWords(words []string, spc, lim, pen int) [][]string {
+	n := len(words)
+
+	length := make([][]int, n)
+	for i := 0; i < n; i++ {
+		length[i] = make([]int, n)
+		length[i][i] = utf8.RuneCountInString(words[i])
+		for j := i + 1; j < n; j++ {
+			length[i][j] = length[i][j-1] + spc + utf8.RuneCountInString(words[j])
+		}
+	}
+	nbrk := make([]int, n)
+	cost := make([]int, n)
+	for i := range cost {
+		cost[i] = math.MaxInt32
+	}
+	for i := n - 1; i >= 0; i-- {
+		if length[i][n-1] <= lim {
+			cost[i] = 0
+			nbrk[i] = n
+		} else {
+			for j := i + 1; j < n; j++ {
+				d := lim - length[i][j-1]
+				c := d*d + cost[j]
+				if length[i][j-1] > lim {
+					c += pen // too-long lines get a worse penalty
+				}
+				if c < cost[i] {
+					cost[i] = c
+					nbrk[i] = j
+				}
+			}
+		}
+	}
+	var lines [][]string
+	i := 0
+	for i < n {
+		lines = append(lines, words[i:nbrk[i]])
+		i = nbrk[i]
+	}
+	return lines
+}
+
+// getLines decomposes a multiline string into a slice of strings.
+func getLines(s string) []string {
+	var lines []string
+
+	for _, line := range strings.Split(s, nl) {
+		lines = append(lines, line)
+	}
+	return lines
+}

vendor/github.com/spf13/cobra/.gitignore

@@ -0,0 +1,36 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+# Vim files https://github.com/github/gitignore/blob/master/Global/Vim.gitignore
+# swap
+[._]*.s[a-w][a-z]
+[._]s[a-w][a-z]
+# session
+Session.vim
+# temporary
+.netrwhist
+*~
+# auto-generated tag files
+tags
+
+*.exe
+
+cobra.test

vendor/github.com/spf13/cobra/.mailmap

@@ -0,0 +1,3 @@
+Steve Francia <steve.francia@gmail.com>
+Bjørn Erik Pedersen <bjorn.erik.pedersen@gmail.com>
+Fabiano Franz <ffranz@redhat.com>                   <contact@fabianofranz.com>

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

@@ -0,0 +1,24 @@
+language: go
+
+matrix:
+  include:
+    - go: 1.4.3
+      env: NOVET=true # No bundled vet.
+    - go: 1.5.4
+    - go: 1.6.3
+    - go: 1.7
+    - go: tip
+  allow_failures:
+    - go: tip
+
+before_install:
+  - mkdir -p bin
+  - curl -Lso bin/shellcheck https://github.com/caarlos0/shellcheck-docker/releases/download/v0.4.3/shellcheck
+  - chmod +x bin/shellcheck
+script:
+  - PATH=$PATH:$PWD/bin go test -v ./...
+  - go build
+  - diff -u <(echo -n) <(gofmt -d -s .)
+  - if [ -z $NOVET ]; then
+      diff -u <(echo -n) <(go tool vet . 2>&1 | grep -vE 'ExampleCommand|bash_completions.*Fprint');
+    fi

vendor/github.com/spf13/cobra/LICENSE.txt

@@ -0,0 +1,174 @@
+                                Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.

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

@@ -0,0 +1,898 @@
+![cobra logo](https://cloud.githubusercontent.com/assets/173412/10886352/ad566232-814f-11e5-9cd0-aa101788c117.png)
+
+Cobra is both a library for creating powerful modern CLI applications as well as a program to generate applications and command files.
+
+Many of the most widely used Go projects are built using Cobra including:
+
+* [Kubernetes](http://kubernetes.io/)
+* [Hugo](http://gohugo.io)
+* [rkt](https://github.com/coreos/rkt)
+* [etcd](https://github.com/coreos/etcd)
+* [Docker (distribution)](https://github.com/docker/distribution)
+* [OpenShift](https://www.openshift.com/)
+* [Delve](https://github.com/derekparker/delve)
+* [GopherJS](http://www.gopherjs.org/)
+* [CockroachDB](http://www.cockroachlabs.com/)
+* [Bleve](http://www.blevesearch.com/)
+* [ProjectAtomic (enterprise)](http://www.projectatomic.io/)
+* [Parse (CLI)](https://parse.com/)
+* [GiantSwarm's swarm](https://github.com/giantswarm/cli)
+* [Nanobox](https://github.com/nanobox-io/nanobox)/[Nanopack](https://github.com/nanopack)
+
+
+[![Build Status](https://travis-ci.org/spf13/cobra.svg "Travis CI status")](https://travis-ci.org/spf13/cobra)
+[![CircleCI status](https://circleci.com/gh/spf13/cobra.png?circle-token=:circle-token "CircleCI status")](https://circleci.com/gh/spf13/cobra)
+[![GoDoc](https://godoc.org/github.com/spf13/cobra?status.svg)](https://godoc.org/github.com/spf13/cobra) 
+
+![cobra](https://cloud.githubusercontent.com/assets/173412/10911369/84832a8e-8212-11e5-9f82-cc96660a4794.gif)
+
+# Overview
+
+Cobra is a library providing a simple interface to create powerful modern CLI
+interfaces similar to git & go tools.
+
+Cobra is also an application that will generate your application scaffolding to rapidly
+develop a Cobra-based application.
+
+Cobra provides:
+* Easy subcommand-based CLIs: `app server`, `app fetch`, etc.
+* Fully POSIX-compliant flags (including short & long versions)
+* Nested subcommands
+* Global, local and cascading flags
+* Easy generation of applications & commands with `cobra create appname` & `cobra add cmdname`
+* Intelligent suggestions (`app srver`... did you mean `app server`?)
+* Automatic help generation for commands and flags
+* Automatic detailed help for `app help [command]`
+* Automatic help flag recognition of `-h`, `--help`, etc.
+* Automatically generated bash autocomplete for your application
+* Automatically generated man pages for your application
+* Command aliases so you can change things without breaking them
+* The flexibilty to define your own help, usage, etc.
+* Optional tight integration with [viper](http://github.com/spf13/viper) for 12-factor apps
+
+Cobra has an exceptionally clean interface and simple design without needless
+constructors or initialization methods.
+
+Applications built with Cobra commands are designed to be as user-friendly as
+possible. Flags can be placed before or after the command (as long as a
+confusing space isn’t provided). Both short and long flags can be used. A
+command need not even be fully typed.  Help is automatically generated and
+available for the application or for a specific command using either the help
+command or the `--help` flag.
+
+# Concepts
+
+Cobra is built on a structure of commands, arguments & flags.
+
+**Commands** represent actions, **Args** are things and **Flags** are modifiers for those actions.
+
+The best applications will read like sentences when used. Users will know how
+to use the application because they will natively understand how to use it.
+
+The pattern to follow is
+`APPNAME VERB NOUN --ADJECTIVE.`
+    or
+`APPNAME COMMAND ARG --FLAG`
+
+A few good real world examples may better illustrate this point.
+
+In the following example, 'server' is a command, and 'port' is a flag:
+
+    > hugo server --port=1313
+
+In this command we are telling Git to clone the url bare.
+
+    > git clone URL --bare
+
+## Commands
+
+Command is the central point of the application. Each interaction that
+the application supports will be contained in a Command. A command can
+have children commands and optionally run an action.
+
+In the example above, 'server' is the command.
+
+A Command has the following structure:
+
+```go
+type Command struct {
+    Use string // The one-line usage message.
+    Short string // The short description shown in the 'help' output.
+    Long string // The long message shown in the 'help <this-command>' output.
+    Run func(cmd *Command, args []string) // Run runs the command.
+}
+```
+
+## Flags
+
+A Flag is a way to modify the behavior of a command. Cobra supports
+fully POSIX-compliant flags as well as the Go [flag package](https://golang.org/pkg/flag/).
+A Cobra command can define flags that persist through to children commands
+and flags that are only available to that command.
+
+In the example above, 'port' is the flag.
+
+Flag functionality is provided by the [pflag
+library](https://github.com/ogier/pflag), a fork of the flag standard library
+which maintains the same interface while adding POSIX compliance.
+
+## Usage
+
+Cobra works by creating a set of commands and then organizing them into a tree.
+The tree defines the structure of the application.
+
+Once each command is defined with its corresponding flags, then the
+tree is assigned to the commander which is finally executed.
+
+# Installing
+Using Cobra is easy. First, use `go get` to install the latest version
+of the library. This command will install the `cobra` generator executible
+along with the library:
+
+    > go get -v github.com/spf13/cobra/cobra
+
+Next, include Cobra in your application:
+
+```go
+import "github.com/spf13/cobra"
+```
+
+# Getting Started
+
+While you are welcome to provide your own organization, typically a Cobra based
+application will follow the following organizational structure.
+
+```
+  ▾ appName/
+    ▾ cmd/
+        add.go
+        your.go
+        commands.go
+        here.go
+      main.go
+```
+
+In a Cobra app, typically the main.go file is very bare. It serves, one purpose, to initialize Cobra.
+
+```go
+package main
+
+import "{pathToYourApp}/cmd"
+
+func main() {
+	if err := cmd.RootCmd.Execute(); err != nil {
+		fmt.Println(err)
+		os.Exit(-1)
+	}
+}
+```
+
+## Using the Cobra Generator
+
+Cobra provides its own program that will create your application and add any
+commands you want. It's the easiest way to incorporate Cobra into your application.
+
+In order to use the cobra command, compile it using the following command:
+
+    > go install github.com/spf13/cobra/cobra
+
+This will create the cobra executable under your go path bin directory!
+
+### cobra init
+
+The `cobra init [yourApp]` command will create your initial application code
+for you. It is a very powerful application that will populate your program with
+the right structure so you can immediately enjoy all the benefits of Cobra. It
+will also automatically apply the license you specify to your application.
+
+Cobra init is pretty smart. You can provide it a full path, or simply a path
+similar to what is expected in the import.
+
+```
+cobra init github.com/spf13/newAppName
+```
+
+### cobra add
+
+Once an application is initialized Cobra can create additional commands for you.
+Let's say you created an app and you wanted the following commands for it:
+
+* app serve
+* app config
+* app config create
+
+In your project directory (where your main.go file is) you would run the following:
+
+```
+cobra add serve
+cobra add config
+cobra add create -p 'configCmd'
+```
+
+Once you have run these three commands you would have an app structure that would look like:
+
+```
+  ▾ app/
+    ▾ cmd/
+        serve.go
+        config.go
+        create.go
+      main.go
+```
+
+at this point you can run `go run main.go` and it would run your app. `go run
+main.go serve`, `go run main.go config`, `go run main.go config create` along
+with `go run main.go help serve`, etc would all work.
+
+Obviously you haven't added your own code to these yet, the commands are ready
+for you to give them their tasks. Have fun.
+
+### Configuring the cobra generator
+
+The cobra generator will be easier to use if you provide a simple configuration
+file which will help you eliminate providing a bunch of repeated information in
+flags over and over.
+
+An example ~/.cobra.yaml file:
+
+```yaml
+author: Steve Francia <spf@spf13.com>
+license: MIT
+```
+
+You can specify no license by setting `license` to `none` or you can specify
+a custom license:
+
+```yaml
+license:
+  header: This file is part of {{ .appName }}.
+  text: |
+    {{ .copyright }}
+
+    This is my license. There are many like it, but this one is mine.
+    My license is my best friend. It is my life. I must master it as I must
+    master my life.  
+```
+
+## Manually implementing Cobra
+
+To manually implement cobra you need to create a bare main.go file and a RootCmd file.
+You will optionally provide additional commands as you see fit.
+
+### Create the root command
+
+The root command represents your binary itself.
+
+
+#### Manually create rootCmd
+
+Cobra doesn't require any special constructors. Simply create your commands.
+
+Ideally you place this in app/cmd/root.go:
+
+```go
+var RootCmd = &cobra.Command{
+	Use:   "hugo",
+	Short: "Hugo is a very fast static site generator",
+	Long: `A Fast and Flexible Static Site Generator built with
+                love by spf13 and friends in Go.
+                Complete documentation is available at http://hugo.spf13.com`,
+	Run: func(cmd *cobra.Command, args []string) {
+		// Do Stuff Here
+	},
+}
+```
+
+You will additionally define flags and handle configuration in your init() function.
+
+for example cmd/root.go:
+
+```go
+func init() {
+	cobra.OnInitialize(initConfig)
+	RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.cobra.yaml)")
+	RootCmd.PersistentFlags().StringVarP(&projectBase, "projectbase", "b", "", "base project directory eg. github.com/spf13/")
+	RootCmd.PersistentFlags().StringP("author", "a", "YOUR NAME", "Author name for copyright attribution")
+	RootCmd.PersistentFlags().StringVarP(&userLicense, "license", "l", "", "Name of license for the project (can provide `licensetext` in config)")
+	RootCmd.PersistentFlags().Bool("viper", true, "Use Viper for configuration")
+	viper.BindPFlag("author", RootCmd.PersistentFlags().Lookup("author"))
+	viper.BindPFlag("projectbase", RootCmd.PersistentFlags().Lookup("projectbase"))
+	viper.BindPFlag("useViper", RootCmd.PersistentFlags().Lookup("viper"))
+	viper.SetDefault("author", "NAME HERE <EMAIL ADDRESS>")
+	viper.SetDefault("license", "apache")
+}
+```
+
+### Create your main.go
+
+With the root command you need to have your main function execute it.
+Execute should be run on the root for clarity, though it can be called on any command.
+
+In a Cobra app, typically the main.go file is very bare. It serves, one purpose, to initialize Cobra.
+
+```go
+package main
+
+import "{pathToYourApp}/cmd"
+
+func main() {
+	if err := cmd.RootCmd.Execute(); err != nil {
+		fmt.Println(err)
+		os.Exit(-1)
+	}
+}
+```
+
+
+### Create additional commands
+
+Additional commands can be defined and typically are each given their own file
+inside of the cmd/ directory.
+
+If you wanted to create a version command you would create cmd/version.go and
+populate it with the following:
+
+```go
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+)
+
+func init() {
+	RootCmd.AddCommand(versionCmd)
+}
+
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Print the version number of Hugo",
+	Long:  `All software has versions. This is Hugo's`,
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println("Hugo Static Site Generator v0.9 -- HEAD")
+	},
+}
+```
+
+### Attach command to its parent
+
+
+If you notice in the above example we attach the command to its parent. In
+this case the parent is the rootCmd. In this example we are attaching it to the
+root, but commands can be attached at any level.
+
+```go
+RootCmd.AddCommand(versionCmd)
+```
+
+### Remove a command from its parent
+
+Removing a command is not a common action in simple programs, but it allows 3rd
+parties to customize an existing command tree.
+
+In this example, we remove the existing `VersionCmd` command of an existing
+root command, and we replace it with our own version:
+
+```go
+mainlib.RootCmd.RemoveCommand(mainlib.VersionCmd)
+mainlib.RootCmd.AddCommand(versionCmd)
+```
+
+## Working with Flags
+
+Flags provide modifiers to control how the action command operates.
+
+### Assign flags to a command
+
+Since the flags are defined and used in different locations, we need to
+define a variable outside with the correct scope to assign the flag to
+work with.
+
+```go
+var Verbose bool
+var Source string
+```
+
+There are two different approaches to assign a flag.
+
+### Persistent Flags
+
+A flag can be 'persistent' meaning that this flag will be available to the
+command it's assigned to as well as every command under that command. For
+global flags, assign a flag as a persistent flag on the root.
+
+```go
+RootCmd.PersistentFlags().BoolVarP(&Verbose, "verbose", "v", false, "verbose output")
+```
+
+### Local Flags
+
+A flag can also be assigned locally which will only apply to that specific command.
+
+```go
+RootCmd.Flags().StringVarP(&Source, "source", "s", "", "Source directory to read from")
+```
+
+
+## Example
+
+In the example below, we have defined three commands. Two are at the top level
+and one (cmdTimes) is a child of one of the top commands. In this case the root
+is not executable meaning that a subcommand is required. This is accomplished
+by not providing a 'Run' for the 'rootCmd'.
+
+We have only defined one flag for a single command.
+
+More documentation about flags is available at https://github.com/spf13/pflag
+
+```go
+package main
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/spf13/cobra"
+)
+
+func main() {
+
+	var echoTimes int
+
+	var cmdPrint = &cobra.Command{
+		Use:   "print [string to print]",
+		Short: "Print anything to the screen",
+		Long: `print is for printing anything back to the screen.
+            For many years people have printed back to the screen.
+            `,
+		Run: func(cmd *cobra.Command, args []string) {
+			fmt.Println("Print: " + strings.Join(args, " "))
+		},
+	}
+
+	var cmdEcho = &cobra.Command{
+		Use:   "echo [string to echo]",
+		Short: "Echo anything to the screen",
+		Long: `echo is for echoing anything back.
+            Echo works a lot like print, except it has a child command.
+            `,
+		Run: func(cmd *cobra.Command, args []string) {
+			fmt.Println("Print: " + strings.Join(args, " "))
+		},
+	}
+
+	var cmdTimes = &cobra.Command{
+		Use:   "times [# times] [string to echo]",
+		Short: "Echo anything to the screen more times",
+		Long: `echo things multiple times back to the user by providing
+            a count and a string.`,
+		Run: func(cmd *cobra.Command, args []string) {
+			for i := 0; i < echoTimes; i++ {
+				fmt.Println("Echo: " + strings.Join(args, " "))
+			}
+		},
+	}
+
+	cmdTimes.Flags().IntVarP(&echoTimes, "times", "t", 1, "times to echo the input")
+
+	var rootCmd = &cobra.Command{Use: "app"}
+	rootCmd.AddCommand(cmdPrint, cmdEcho)
+	cmdEcho.AddCommand(cmdTimes)
+	rootCmd.Execute()
+}
+```
+
+For a more complete example of a larger application, please checkout [Hugo](http://gohugo.io/).
+
+## The Help Command
+
+Cobra automatically adds a help command to your application when you have subcommands.
+This will be called when a user runs 'app help'. Additionally, help will also
+support all other commands as input. Say, for instance, you have a command called
+'create' without any additional configuration; Cobra will work when 'app help
+create' is called.  Every command will automatically have the '--help' flag added.
+
+### Example
+
+The following output is automatically generated by Cobra. Nothing beyond the
+command and flag definitions are needed.
+
+    > hugo help
+
+    hugo is the main command, used to build your Hugo site.
+
+    Hugo is a Fast and Flexible Static Site Generator
+    built with love by spf13 and friends in Go.
+
+    Complete documentation is available at http://gohugo.io/.
+
+    Usage:
+      hugo [flags]
+      hugo [command]
+
+    Available Commands:
+      server          Hugo runs its own webserver to render the files
+      version         Print the version number of Hugo
+      config          Print the site configuration
+      check           Check content in the source directory
+      benchmark       Benchmark hugo by building a site a number of times.
+      convert         Convert your content to different formats
+      new             Create new content for your site
+      list            Listing out various types of content
+      undraft         Undraft changes the content's draft status from 'True' to 'False'
+      genautocomplete Generate shell autocompletion script for Hugo
+      gendoc          Generate Markdown documentation for the Hugo CLI.
+      genman          Generate man page for Hugo
+      import          Import your site from others.
+
+    Flags:
+      -b, --baseURL="": hostname (and path) to the root, e.g. http://spf13.com/
+      -D, --buildDrafts[=false]: include content marked as draft
+      -F, --buildFuture[=false]: include content with publishdate in the future
+          --cacheDir="": filesystem path to cache directory. Defaults: $TMPDIR/hugo_cache/
+          --canonifyURLs[=false]: if true, all relative URLs will be canonicalized using baseURL
+          --config="": config file (default is path/config.yaml|json|toml)
+      -d, --destination="": filesystem path to write files to
+          --disableRSS[=false]: Do not build RSS files
+          --disableSitemap[=false]: Do not build Sitemap file
+          --editor="": edit new content with this editor, if provided
+          --ignoreCache[=false]: Ignores the cache directory for reading but still writes to it
+          --log[=false]: Enable Logging
+          --logFile="": Log File path (if set, logging enabled automatically)
+          --noTimes[=false]: Don't sync modification time of files
+          --pluralizeListTitles[=true]: Pluralize titles in lists using inflect
+          --preserveTaxonomyNames[=false]: Preserve taxonomy names as written ("Gérard Depardieu" vs "gerard-depardieu")
+      -s, --source="": filesystem path to read files relative from
+          --stepAnalysis[=false]: display memory and timing of different steps of the program
+      -t, --theme="": theme to use (located in /themes/THEMENAME/)
+          --uglyURLs[=false]: if true, use /filename.html instead of /filename/
+      -v, --verbose[=false]: verbose output
+          --verboseLog[=false]: verbose logging
+      -w, --watch[=false]: watch filesystem for changes and recreate as needed
+
+    Use "hugo [command] --help" for more information about a command.
+
+
+Help is just a command like any other. There is no special logic or behavior
+around it. In fact, you can provide your own if you want.
+
+### Defining your own help
+
+You can provide your own Help command or your own template for the default command to use.
+
+The default help command is
+
+```go
+func (c *Command) initHelp() {
+	if c.helpCommand == nil {
+		c.helpCommand = &Command{
+			Use:   "help [command]",
+			Short: "Help about any command",
+			Long: `Help provides help for any command in the application.
+        Simply type ` + c.Name() + ` help [path to command] for full details.`,
+			Run: c.HelpFunc(),
+		}
+	}
+	c.AddCommand(c.helpCommand)
+}
+```
+
+You can provide your own command, function or template through the following methods:
+
+```go
+command.SetHelpCommand(cmd *Command)
+
+command.SetHelpFunc(f func(*Command, []string))
+
+command.SetHelpTemplate(s string)
+```
+
+The latter two will also apply to any children commands.
+
+## Usage
+
+When the user provides an invalid flag or invalid command, Cobra responds by
+showing the user the 'usage'.
+
+### Example
+You may recognize this from the help above. That's because the default help
+embeds the usage as part of its output.
+
+    Usage:
+      hugo [flags]
+      hugo [command]
+
+    Available Commands:
+      server          Hugo runs its own webserver to render the files
+      version         Print the version number of Hugo
+      config          Print the site configuration
+      check           Check content in the source directory
+      benchmark       Benchmark hugo by building a site a number of times.
+      convert         Convert your content to different formats
+      new             Create new content for your site
+      list            Listing out various types of content
+      undraft         Undraft changes the content's draft status from 'True' to 'False'
+      genautocomplete Generate shell autocompletion script for Hugo
+      gendoc          Generate Markdown documentation for the Hugo CLI.
+      genman          Generate man page for Hugo
+      import          Import your site from others.
+
+    Flags:
+      -b, --baseURL="": hostname (and path) to the root, e.g. http://spf13.com/
+      -D, --buildDrafts[=false]: include content marked as draft
+      -F, --buildFuture[=false]: include content with publishdate in the future
+          --cacheDir="": filesystem path to cache directory. Defaults: $TMPDIR/hugo_cache/
+          --canonifyURLs[=false]: if true, all relative URLs will be canonicalized using baseURL
+          --config="": config file (default is path/config.yaml|json|toml)
+      -d, --destination="": filesystem path to write files to
+          --disableRSS[=false]: Do not build RSS files
+          --disableSitemap[=false]: Do not build Sitemap file
+          --editor="": edit new content with this editor, if provided
+          --ignoreCache[=false]: Ignores the cache directory for reading but still writes to it
+          --log[=false]: Enable Logging
+          --logFile="": Log File path (if set, logging enabled automatically)
+          --noTimes[=false]: Don't sync modification time of files
+          --pluralizeListTitles[=true]: Pluralize titles in lists using inflect
+          --preserveTaxonomyNames[=false]: Preserve taxonomy names as written ("Gérard Depardieu" vs "gerard-depardieu")
+      -s, --source="": filesystem path to read files relative from
+          --stepAnalysis[=false]: display memory and timing of different steps of the program
+      -t, --theme="": theme to use (located in /themes/THEMENAME/)
+          --uglyURLs[=false]: if true, use /filename.html instead of /filename/
+      -v, --verbose[=false]: verbose output
+          --verboseLog[=false]: verbose logging
+      -w, --watch[=false]: watch filesystem for changes and recreate as needed
+
+### Defining your own usage
+You can provide your own usage function or template for Cobra to use.
+
+The default usage function is:
+
+```go
+return func(c *Command) error {
+	err := tmpl(c.Out(), c.UsageTemplate(), c)
+	return err
+}
+```
+
+Like help, the function and template are overridable through public methods:
+
+```go
+command.SetUsageFunc(f func(*Command) error)
+
+command.SetUsageTemplate(s string)
+```
+
+## PreRun or PostRun Hooks
+
+It is possible to run functions before or after the main `Run` function of your command. The `PersistentPreRun` and `PreRun` functions will be executed before `Run`. `PersistentPostRun` and `PostRun` will be executed after `Run`.  The `Persistent*Run` functions will be inherited by children if they do not declare their own.  These functions are run in the following order:
+
+- `PersistentPreRun`
+- `PreRun`
+- `Run`
+- `PostRun`
+- `PersistentPostRun`
+
+An example of two commands which use all of these features is below.  When the subcommand is executed, it will run the root command's `PersistentPreRun` but not the root command's `PersistentPostRun`:
+
+```go
+package main
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+func main() {
+
+	var rootCmd = &cobra.Command{
+		Use:   "root [sub]",
+		Short: "My root command",
+		PersistentPreRun: func(cmd *cobra.Command, args []string) {
+			fmt.Printf("Inside rootCmd PersistentPreRun with args: %v\n", args)
+		},
+		PreRun: func(cmd *cobra.Command, args []string) {
+			fmt.Printf("Inside rootCmd PreRun with args: %v\n", args)
+		},
+		Run: func(cmd *cobra.Command, args []string) {
+			fmt.Printf("Inside rootCmd Run with args: %v\n", args)
+		},
+		PostRun: func(cmd *cobra.Command, args []string) {
+			fmt.Printf("Inside rootCmd PostRun with args: %v\n", args)
+		},
+		PersistentPostRun: func(cmd *cobra.Command, args []string) {
+			fmt.Printf("Inside rootCmd PersistentPostRun with args: %v\n", args)
+		},
+	}
+
+	var subCmd = &cobra.Command{
+		Use:   "sub [no options!]",
+		Short: "My subcommand",
+		PreRun: func(cmd *cobra.Command, args []string) {
+			fmt.Printf("Inside subCmd PreRun with args: %v\n", args)
+		},
+		Run: func(cmd *cobra.Command, args []string) {
+			fmt.Printf("Inside subCmd Run with args: %v\n", args)
+		},
+		PostRun: func(cmd *cobra.Command, args []string) {
+			fmt.Printf("Inside subCmd PostRun with args: %v\n", args)
+		},
+		PersistentPostRun: func(cmd *cobra.Command, args []string) {
+			fmt.Printf("Inside subCmd PersistentPostRun with args: %v\n", args)
+		},
+	}
+
+	rootCmd.AddCommand(subCmd)
+
+	rootCmd.SetArgs([]string{""})
+	_ = rootCmd.Execute()
+	fmt.Print("\n")
+	rootCmd.SetArgs([]string{"sub", "arg1", "arg2"})
+	_ = rootCmd.Execute()
+}
+```
+
+
+## Alternative Error Handling
+
+Cobra also has functions where the return signature is an error. This allows for errors to bubble up to the top,
+providing a way to handle the errors in one location. The current list of functions that return an error is:
+
+* PersistentPreRunE
+* PreRunE
+* RunE
+* PostRunE
+* PersistentPostRunE
+
+If you would like to silence the default `error` and `usage` output in favor of your own, you can set `SilenceUsage`
+and `SilenceErrors` to `false` on the command. A child command respects these flags if they are set on the parent
+command.
+
+**Example Usage using RunE:**
+
+```go
+package main
+
+import (
+	"errors"
+	"log"
+
+	"github.com/spf13/cobra"
+)
+
+func main() {
+	var rootCmd = &cobra.Command{
+		Use:   "hugo",
+		Short: "Hugo is a very fast static site generator",
+		Long: `A Fast and Flexible Static Site Generator built with
+                love by spf13 and friends in Go.
+                Complete documentation is available at http://hugo.spf13.com`,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			// Do Stuff Here
+			return errors.New("some random error")
+		},
+	}
+
+	if err := rootCmd.Execute(); err != nil {
+		log.Fatal(err)
+	}
+}
+```
+
+## Suggestions when "unknown command" happens
+
+Cobra will print automatic suggestions when "unknown command" errors happen. This allows Cobra to behave similarly to the `git` command when a typo happens. For example:
+
+```
+$ hugo srever
+Error: unknown command "srever" for "hugo"
+
+Did you mean this?
+        server
+
+Run 'hugo --help' for usage.
+```
+
+Suggestions are automatic based on every subcommand registered and use an implementation of [Levenshtein distance](http://en.wikipedia.org/wiki/Levenshtein_distance). Every registered command that matches a minimum distance of 2 (ignoring case) will be displayed as a suggestion.
+
+If you need to disable suggestions or tweak the string distance in your command, use:
+
+```go
+command.DisableSuggestions = true
+```
+
+or
+
+```go
+command.SuggestionsMinimumDistance = 1
+```
+
+You can also explicitly set names for which a given command will be suggested using the `SuggestFor` attribute. This allows suggestions for strings that are not close in terms of string distance, but makes sense in your set of commands and for some which you don't want aliases. Example:
+
+```
+$ kubectl remove
+Error: unknown command "remove" for "kubectl"
+
+Did you mean this?
+        delete
+
+Run 'kubectl help' for usage.
+```
+
+## Generating Markdown-formatted documentation for your command
+
+Cobra can generate a Markdown-formatted document based on the subcommands, flags, etc. A simple example of how to do this for your command can be found in [Markdown Docs](doc/md_docs.md).
+
+## Generating man pages for your command
+
+Cobra can generate a man page based on the subcommands, flags, etc. A simple example of how to do this for your command can be found in [Man Docs](doc/man_docs.md).
+
+## Generating bash completions for your command
+
+Cobra can generate a bash-completion file. If you add more information to your command, these completions can be amazingly powerful and flexible.  Read more about it in [Bash Completions](bash_completions.md).
+
+## Debugging
+
+Cobra provides a ‘DebugFlags’ method on a command which, when called, will print
+out everything Cobra knows about the flags for each command.
+
+### Example
+
+```go
+command.DebugFlags()
+```
+
+## Release Notes
+* **0.9.0** June 17, 2014
+  * flags can appears anywhere in the args (provided they are unambiguous)
+  * --help prints usage screen for app or command
+  * Prefix matching for commands
+  * Cleaner looking help and usage output
+  * Extensive test suite
+* **0.8.0** Nov 5, 2013
+  * Reworked interface to remove commander completely
+  * Command now primary structure
+  * No initialization needed
+  * Usage & Help templates & functions definable at any level
+  * Updated Readme
+* **0.7.0** Sept 24, 2013
+  * Needs more eyes
+  * Test suite
+  * Support for automatic error messages
+  * Support for help command
+  * Support for printing to any io.Writer instead of os.Stderr
+  * Support for persistent flags which cascade down tree
+  * Ready for integration into Hugo
+* **0.1.0** Sept 3, 2013
+  * Implement first draft
+
+## Extensions
+
+Libraries for extending Cobra:
+
+* [cmdns](https://github.com/gosuri/cmdns): Enables name spacing a command's immediate children. It provides an alternative way to structure subcommands, similar to `heroku apps:create` and `ovrclk clusters:launch`.
+
+## ToDo
+* Launch proper documentation site
+
+## Contributing
+
+1. Fork it
+2. Create your feature branch (`git checkout -b my-new-feature`)
+3. Commit your changes (`git commit -am 'Add some feature'`)
+4. Push to the branch (`git push origin my-new-feature`)
+5. Create new Pull Request
+
+## Contributors
+
+Names in no particular order:
+
+* [spf13](https://github.com/spf13),
+[eparis](https://github.com/eparis),
+[bep](https://github.com/bep), and many more!
+
+## License
+
+Cobra is released under the Apache 2.0 license. See [LICENSE.txt](https://github.com/spf13/cobra/blob/master/LICENSE.txt)
+
+
+[![Bitdeli Badge](https://d2weczhvl823v0.cloudfront.net/spf13/cobra/trend.png)](https://bitdeli.com/free "Bitdeli Badge")

vendor/github.com/spf13/cobra/bash_completions.go

@@ -0,0 +1,641 @@
+package cobra
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"sort"
+	"strings"
+
+	"github.com/spf13/pflag"
+)
+
+const (
+	BashCompFilenameExt     = "cobra_annotation_bash_completion_filename_extensions"
+	BashCompCustom          = "cobra_annotation_bash_completion_custom"
+	BashCompOneRequiredFlag = "cobra_annotation_bash_completion_one_required_flag"
+	BashCompSubdirsInDir    = "cobra_annotation_bash_completion_subdirs_in_dir"
+)
+
+func preamble(out io.Writer, name string) error {
+	_, err := fmt.Fprintf(out, "# bash completion for %-36s -*- shell-script -*-\n", name)
+	if err != nil {
+		return err
+	}
+	_, err = fmt.Fprint(out, `
+__debug()
+{
+    if [[ -n ${BASH_COMP_DEBUG_FILE} ]]; then
+        echo "$*" >> "${BASH_COMP_DEBUG_FILE}"
+    fi
+}
+
+# Homebrew on Macs have version 1.3 of bash-completion which doesn't include
+# _init_completion. This is a very minimal version of that function.
+__my_init_completion()
+{
+    COMPREPLY=()
+    _get_comp_words_by_ref "$@" cur prev words cword
+}
+
+__index_of_word()
+{
+    local w word=$1
+    shift
+    index=0
+    for w in "$@"; do
+        [[ $w = "$word" ]] && return
+        index=$((index+1))
+    done
+    index=-1
+}
+
+__contains_word()
+{
+    local w word=$1; shift
+    for w in "$@"; do
+        [[ $w = "$word" ]] && return
+    done
+    return 1
+}
+
+__handle_reply()
+{
+    __debug "${FUNCNAME[0]}"
+    case $cur in
+        -*)
+            if [[ $(type -t compopt) = "builtin" ]]; then
+                compopt -o nospace
+            fi
+            local allflags
+            if [ ${#must_have_one_flag[@]} -ne 0 ]; then
+                allflags=("${must_have_one_flag[@]}")
+            else
+                allflags=("${flags[*]} ${two_word_flags[*]}")
+            fi
+            COMPREPLY=( $(compgen -W "${allflags[*]}" -- "$cur") )
+            if [[ $(type -t compopt) = "builtin" ]]; then
+                [[ "${COMPREPLY[0]}" == *= ]] || compopt +o nospace
+            fi
+
+            # complete after --flag=abc
+            if [[ $cur == *=* ]]; then
+                if [[ $(type -t compopt) = "builtin" ]]; then
+                    compopt +o nospace
+                fi
+
+                local index flag
+                flag="${cur%%=*}"
+                __index_of_word "${flag}" "${flags_with_completion[@]}"
+                if [[ ${index} -ge 0 ]]; then
+                    COMPREPLY=()
+                    PREFIX=""
+                    cur="${cur#*=}"
+                    ${flags_completion[${index}]}
+                    if [ -n "${ZSH_VERSION}" ]; then
+                        # zfs completion needs --flag= prefix
+                        eval "COMPREPLY=( \"\${COMPREPLY[@]/#/${flag}=}\" )"
+                    fi
+                fi
+            fi
+            return 0;
+            ;;
+    esac
+
+    # check if we are handling a flag with special work handling
+    local index
+    __index_of_word "${prev}" "${flags_with_completion[@]}"
+    if [[ ${index} -ge 0 ]]; then
+        ${flags_completion[${index}]}
+        return
+    fi
+
+    # we are parsing a flag and don't have a special handler, no completion
+    if [[ ${cur} != "${words[cword]}" ]]; then
+        return
+    fi
+
+    local completions
+    completions=("${commands[@]}")
+    if [[ ${#must_have_one_noun[@]} -ne 0 ]]; then
+        completions=("${must_have_one_noun[@]}")
+    fi
+    if [[ ${#must_have_one_flag[@]} -ne 0 ]]; then
+        completions+=("${must_have_one_flag[@]}")
+    fi
+    COMPREPLY=( $(compgen -W "${completions[*]}" -- "$cur") )
+
+    if [[ ${#COMPREPLY[@]} -eq 0 && ${#noun_aliases[@]} -gt 0 && ${#must_have_one_noun[@]} -ne 0 ]]; then
+        COMPREPLY=( $(compgen -W "${noun_aliases[*]}" -- "$cur") )
+    fi
+
+    if [[ ${#COMPREPLY[@]} -eq 0 ]]; then
+        declare -F __custom_func >/dev/null && __custom_func
+    fi
+
+    __ltrim_colon_completions "$cur"
+}
+
+# The arguments should be in the form "ext1|ext2|extn"
+__handle_filename_extension_flag()
+{
+    local ext="$1"
+    _filedir "@(${ext})"
+}
+
+__handle_subdirs_in_dir_flag()
+{
+    local dir="$1"
+    pushd "${dir}" >/dev/null 2>&1 && _filedir -d && popd >/dev/null 2>&1
+}
+
+__handle_flag()
+{
+    __debug "${FUNCNAME[0]}: c is $c words[c] is ${words[c]}"
+
+    # if a command required a flag, and we found it, unset must_have_one_flag()
+    local flagname=${words[c]}
+    local flagvalue
+    # if the word contained an =
+    if [[ ${words[c]} == *"="* ]]; then
+        flagvalue=${flagname#*=} # take in as flagvalue after the =
+        flagname=${flagname%%=*} # strip everything after the =
+        flagname="${flagname}=" # but put the = back
+    fi
+    __debug "${FUNCNAME[0]}: looking for ${flagname}"
+    if __contains_word "${flagname}" "${must_have_one_flag[@]}"; then
+        must_have_one_flag=()
+    fi
+
+    # if you set a flag which only applies to this command, don't show subcommands
+    if __contains_word "${flagname}" "${local_nonpersistent_flags[@]}"; then
+      commands=()
+    fi
+
+    # keep flag value with flagname as flaghash
+    if [ -n "${flagvalue}" ] ; then
+        flaghash[${flagname}]=${flagvalue}
+    elif [ -n "${words[ $((c+1)) ]}" ] ; then
+        flaghash[${flagname}]=${words[ $((c+1)) ]}
+    else
+        flaghash[${flagname}]="true" # pad "true" for bool flag
+    fi
+
+    # skip the argument to a two word flag
+    if __contains_word "${words[c]}" "${two_word_flags[@]}"; then
+        c=$((c+1))
+        # if we are looking for a flags value, don't show commands
+        if [[ $c -eq $cword ]]; then
+            commands=()
+        fi
+    fi
+
+    c=$((c+1))
+
+}
+
+__handle_noun()
+{
+    __debug "${FUNCNAME[0]}: c is $c words[c] is ${words[c]}"
+
+    if __contains_word "${words[c]}" "${must_have_one_noun[@]}"; then
+        must_have_one_noun=()
+    elif __contains_word "${words[c]}" "${noun_aliases[@]}"; then
+        must_have_one_noun=()
+    fi
+
+    nouns+=("${words[c]}")
+    c=$((c+1))
+}
+
+__handle_command()
+{
+    __debug "${FUNCNAME[0]}: c is $c words[c] is ${words[c]}"
+
+    local next_command
+    if [[ -n ${last_command} ]]; then
+        next_command="_${last_command}_${words[c]//:/__}"
+    else
+        if [[ $c -eq 0 ]]; then
+            next_command="_$(basename "${words[c]//:/__}")"
+        else
+            next_command="_${words[c]//:/__}"
+        fi
+    fi
+    c=$((c+1))
+    __debug "${FUNCNAME[0]}: looking for ${next_command}"
+    declare -F $next_command >/dev/null && $next_command
+}
+
+__handle_word()
+{
+    if [[ $c -ge $cword ]]; then
+        __handle_reply
+        return
+    fi
+    __debug "${FUNCNAME[0]}: c is $c words[c] is ${words[c]}"
+    if [[ "${words[c]}" == -* ]]; then
+        __handle_flag
+    elif __contains_word "${words[c]}" "${commands[@]}"; then
+        __handle_command
+    elif [[ $c -eq 0 ]] && __contains_word "$(basename "${words[c]}")" "${commands[@]}"; then
+        __handle_command
+    else
+        __handle_noun
+    fi
+    __handle_word
+}
+
+`)
+	return err
+}
+
+func postscript(w io.Writer, name string) error {
+	name = strings.Replace(name, ":", "__", -1)
+	_, err := fmt.Fprintf(w, "__start_%s()\n", name)
+	if err != nil {
+		return err
+	}
+	_, err = fmt.Fprintf(w, `{
+    local cur prev words cword
+    declare -A flaghash 2>/dev/null || :
+    if declare -F _init_completion >/dev/null 2>&1; then
+        _init_completion -s || return
+    else
+        __my_init_completion -n "=" || return
+    fi
+
+    local c=0
+    local flags=()
+    local two_word_flags=()
+    local local_nonpersistent_flags=()
+    local flags_with_completion=()
+    local flags_completion=()
+    local commands=("%s")
+    local must_have_one_flag=()
+    local must_have_one_noun=()
+    local last_command
+    local nouns=()
+
+    __handle_word
+}
+
+`, name)
+	if err != nil {
+		return err
+	}
+	_, err = fmt.Fprintf(w, `if [[ $(type -t compopt) = "builtin" ]]; then
+    complete -o default -F __start_%s %s
+else
+    complete -o default -o nospace -F __start_%s %s
+fi
+
+`, name, name, name, name)
+	if err != nil {
+		return err
+	}
+	_, err = fmt.Fprintf(w, "# ex: ts=4 sw=4 et filetype=sh\n")
+	return err
+}
+
+func writeCommands(cmd *Command, w io.Writer) error {
+	if _, err := fmt.Fprintf(w, "    commands=()\n"); err != nil {
+		return err
+	}
+	for _, c := range cmd.Commands() {
+		if !c.IsAvailableCommand() || c == cmd.helpCommand {
+			continue
+		}
+		if _, err := fmt.Fprintf(w, "    commands+=(%q)\n", c.Name()); err != nil {
+			return err
+		}
+	}
+	_, err := fmt.Fprintf(w, "\n")
+	return err
+}
+
+func writeFlagHandler(name string, annotations map[string][]string, w io.Writer) error {
+	for key, value := range annotations {
+		switch key {
+		case BashCompFilenameExt:
+			_, err := fmt.Fprintf(w, "    flags_with_completion+=(%q)\n", name)
+			if err != nil {
+				return err
+			}
+
+			if len(value) > 0 {
+				ext := "__handle_filename_extension_flag " + strings.Join(value, "|")
+				_, err = fmt.Fprintf(w, "    flags_completion+=(%q)\n", ext)
+			} else {
+				ext := "_filedir"
+				_, err = fmt.Fprintf(w, "    flags_completion+=(%q)\n", ext)
+			}
+			if err != nil {
+				return err
+			}
+		case BashCompCustom:
+			_, err := fmt.Fprintf(w, "    flags_with_completion+=(%q)\n", name)
+			if err != nil {
+				return err
+			}
+			if len(value) > 0 {
+				handlers := strings.Join(value, "; ")
+				_, err = fmt.Fprintf(w, "    flags_completion+=(%q)\n", handlers)
+			} else {
+				_, err = fmt.Fprintf(w, "    flags_completion+=(:)\n")
+			}
+			if err != nil {
+				return err
+			}
+		case BashCompSubdirsInDir:
+			_, err := fmt.Fprintf(w, "    flags_with_completion+=(%q)\n", name)
+
+			if len(value) == 1 {
+				ext := "__handle_subdirs_in_dir_flag " + value[0]
+				_, err = fmt.Fprintf(w, "    flags_completion+=(%q)\n", ext)
+			} else {
+				ext := "_filedir -d"
+				_, err = fmt.Fprintf(w, "    flags_completion+=(%q)\n", ext)
+			}
+			if err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func writeShortFlag(flag *pflag.Flag, w io.Writer) error {
+	b := (len(flag.NoOptDefVal) > 0)
+	name := flag.Shorthand
+	format := "    "
+	if !b {
+		format += "two_word_"
+	}
+	format += "flags+=(\"-%s\")\n"
+	if _, err := fmt.Fprintf(w, format, name); err != nil {
+		return err
+	}
+	return writeFlagHandler("-"+name, flag.Annotations, w)
+}
+
+func writeFlag(flag *pflag.Flag, w io.Writer) error {
+	b := (len(flag.NoOptDefVal) > 0)
+	name := flag.Name
+	format := "    flags+=(\"--%s"
+	if !b {
+		format += "="
+	}
+	format += "\")\n"
+	if _, err := fmt.Fprintf(w, format, name); err != nil {
+		return err
+	}
+	return writeFlagHandler("--"+name, flag.Annotations, w)
+}
+
+func writeLocalNonPersistentFlag(flag *pflag.Flag, w io.Writer) error {
+	b := (len(flag.NoOptDefVal) > 0)
+	name := flag.Name
+	format := "    local_nonpersistent_flags+=(\"--%s"
+	if !b {
+		format += "="
+	}
+	format += "\")\n"
+	_, err := fmt.Fprintf(w, format, name)
+	return err
+}
+
+func writeFlags(cmd *Command, w io.Writer) error {
+	_, err := fmt.Fprintf(w, `    flags=()
+    two_word_flags=()
+    local_nonpersistent_flags=()
+    flags_with_completion=()
+    flags_completion=()
+
+`)
+	if err != nil {
+		return err
+	}
+	localNonPersistentFlags := cmd.LocalNonPersistentFlags()
+	var visitErr error
+	cmd.NonInheritedFlags().VisitAll(func(flag *pflag.Flag) {
+		if nonCompletableFlag(flag) {
+			return
+		}
+		if err := writeFlag(flag, w); err != nil {
+			visitErr = err
+			return
+		}
+		if len(flag.Shorthand) > 0 {
+			if err := writeShortFlag(flag, w); err != nil {
+				visitErr = err
+				return
+			}
+		}
+		if localNonPersistentFlags.Lookup(flag.Name) != nil {
+			if err := writeLocalNonPersistentFlag(flag, w); err != nil {
+				visitErr = err
+				return
+			}
+		}
+	})
+	if visitErr != nil {
+		return visitErr
+	}
+	cmd.InheritedFlags().VisitAll(func(flag *pflag.Flag) {
+		if nonCompletableFlag(flag) {
+			return
+		}
+		if err := writeFlag(flag, w); err != nil {
+			visitErr = err
+			return
+		}
+		if len(flag.Shorthand) > 0 {
+			if err := writeShortFlag(flag, w); err != nil {
+				visitErr = err
+				return
+			}
+		}
+	})
+	if visitErr != nil {
+		return visitErr
+	}
+
+	_, err = fmt.Fprintf(w, "\n")
+	return err
+}
+
+func writeRequiredFlag(cmd *Command, w io.Writer) error {
+	if _, err := fmt.Fprintf(w, "    must_have_one_flag=()\n"); err != nil {
+		return err
+	}
+	flags := cmd.NonInheritedFlags()
+	var visitErr error
+	flags.VisitAll(func(flag *pflag.Flag) {
+		if nonCompletableFlag(flag) {
+			return
+		}
+		for key := range flag.Annotations {
+			switch key {
+			case BashCompOneRequiredFlag:
+				format := "    must_have_one_flag+=(\"--%s"
+				b := (flag.Value.Type() == "bool")
+				if !b {
+					format += "="
+				}
+				format += "\")\n"
+				if _, err := fmt.Fprintf(w, format, flag.Name); err != nil {
+					visitErr = err
+					return
+				}
+
+				if len(flag.Shorthand) > 0 {
+					if _, err := fmt.Fprintf(w, "    must_have_one_flag+=(\"-%s\")\n", flag.Shorthand); err != nil {
+						visitErr = err
+						return
+					}
+				}
+			}
+		}
+	})
+	return visitErr
+}
+
+func writeRequiredNouns(cmd *Command, w io.Writer) error {
+	if _, err := fmt.Fprintf(w, "    must_have_one_noun=()\n"); err != nil {
+		return err
+	}
+	sort.Sort(sort.StringSlice(cmd.ValidArgs))
+	for _, value := range cmd.ValidArgs {
+		if _, err := fmt.Fprintf(w, "    must_have_one_noun+=(%q)\n", value); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func writeArgAliases(cmd *Command, w io.Writer) error {
+	if _, err := fmt.Fprintf(w, "    noun_aliases=()\n"); err != nil {
+		return err
+	}
+	sort.Sort(sort.StringSlice(cmd.ArgAliases))
+	for _, value := range cmd.ArgAliases {
+		if _, err := fmt.Fprintf(w, "    noun_aliases+=(%q)\n", value); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func gen(cmd *Command, w io.Writer) error {
+	for _, c := range cmd.Commands() {
+		if !c.IsAvailableCommand() || c == cmd.helpCommand {
+			continue
+		}
+		if err := gen(c, w); err != nil {
+			return err
+		}
+	}
+	commandName := cmd.CommandPath()
+	commandName = strings.Replace(commandName, " ", "_", -1)
+	commandName = strings.Replace(commandName, ":", "__", -1)
+	if _, err := fmt.Fprintf(w, "_%s()\n{\n", commandName); err != nil {
+		return err
+	}
+	if _, err := fmt.Fprintf(w, "    last_command=%q\n", commandName); err != nil {
+		return err
+	}
+	if err := writeCommands(cmd, w); err != nil {
+		return err
+	}
+	if err := writeFlags(cmd, w); err != nil {
+		return err
+	}
+	if err := writeRequiredFlag(cmd, w); err != nil {
+		return err
+	}
+	if err := writeRequiredNouns(cmd, w); err != nil {
+		return err
+	}
+	if err := writeArgAliases(cmd, w); err != nil {
+		return err
+	}
+	if _, err := fmt.Fprintf(w, "}\n\n"); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (cmd *Command) GenBashCompletion(w io.Writer) error {
+	if err := preamble(w, cmd.Name()); err != nil {
+		return err
+	}
+	if len(cmd.BashCompletionFunction) > 0 {
+		if _, err := fmt.Fprintf(w, "%s\n", cmd.BashCompletionFunction); err != nil {
+			return err
+		}
+	}
+	if err := gen(cmd, w); err != nil {
+		return err
+	}
+	return postscript(w, cmd.Name())
+}
+
+func nonCompletableFlag(flag *pflag.Flag) bool {
+	return flag.Hidden || len(flag.Deprecated) > 0
+}
+
+func (cmd *Command) GenBashCompletionFile(filename string) error {
+	outFile, err := os.Create(filename)
+	if err != nil {
+		return err
+	}
+	defer outFile.Close()
+
+	return cmd.GenBashCompletion(outFile)
+}
+
+// MarkFlagRequired adds the BashCompOneRequiredFlag annotation to the named flag, if it exists.
+func (cmd *Command) MarkFlagRequired(name string) error {
+	return MarkFlagRequired(cmd.Flags(), name)
+}
+
+// MarkPersistentFlagRequired adds the BashCompOneRequiredFlag annotation to the named persistent flag, if it exists.
+func (cmd *Command) MarkPersistentFlagRequired(name string) error {
+	return MarkFlagRequired(cmd.PersistentFlags(), name)
+}
+
+// MarkFlagRequired adds the BashCompOneRequiredFlag annotation to the named flag in the flag set, if it exists.
+func MarkFlagRequired(flags *pflag.FlagSet, name string) error {
+	return flags.SetAnnotation(name, BashCompOneRequiredFlag, []string{"true"})
+}
+
+// MarkFlagFilename adds the BashCompFilenameExt annotation to the named flag, if it exists.
+// Generated bash autocompletion will select filenames for the flag, limiting to named extensions if provided.
+func (cmd *Command) MarkFlagFilename(name string, extensions ...string) error {
+	return MarkFlagFilename(cmd.Flags(), name, extensions...)
+}
+
+// MarkFlagCustom adds the BashCompCustom annotation to the named flag, if it exists.
+// Generated bash autocompletion will call the bash function f for the flag.
+func (cmd *Command) MarkFlagCustom(name string, f string) error {
+	return MarkFlagCustom(cmd.Flags(), name, f)
+}
+
+// MarkPersistentFlagFilename adds the BashCompFilenameExt annotation to the named persistent flag, if it exists.
+// Generated bash autocompletion will select filenames for the flag, limiting to named extensions if provided.
+func (cmd *Command) MarkPersistentFlagFilename(name string, extensions ...string) error {
+	return MarkFlagFilename(cmd.PersistentFlags(), name, extensions...)
+}
+
+// MarkFlagFilename adds the BashCompFilenameExt annotation to the named flag in the flag set, if it exists.
+// Generated bash autocompletion will select filenames for the flag, limiting to named extensions if provided.
+func MarkFlagFilename(flags *pflag.FlagSet, name string, extensions ...string) error {
+	return flags.SetAnnotation(name, BashCompFilenameExt, extensions)
+}
+
+// MarkFlagCustom adds the BashCompCustom annotation to the named flag in the flag set, if it exists.
+// Generated bash autocompletion will call the bash function f for the flag.
+func MarkFlagCustom(flags *pflag.FlagSet, name string, f string) error {
+	return flags.SetAnnotation(name, BashCompCustom, []string{f})
+}

vendor/github.com/spf13/cobra/bash_completions.md

@@ -0,0 +1,206 @@
+# Generating Bash Completions For Your Own cobra.Command
+
+Generating bash completions from a cobra command is incredibly easy. An actual program which does so for the kubernetes kubectl binary is as follows:
+
+```go
+package main
+
+import (
+        "io/ioutil"
+        "os"
+
+        "github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl/cmd"
+)
+
+func main() {
+        kubectl := cmd.NewFactory(nil).NewKubectlCommand(os.Stdin, ioutil.Discard, ioutil.Discard)
+        kubectl.GenBashCompletionFile("out.sh")
+}
+```
+
+That will get you completions of subcommands and flags. If you make additional annotations to your code, you can get even more intelligent and flexible behavior.
+
+## Creating your own custom functions
+
+Some more actual code that works in kubernetes:
+
+```bash
+const (
+        bash_completion_func = `__kubectl_parse_get()
+{
+    local kubectl_output out
+    if kubectl_output=$(kubectl get --no-headers "$1" 2>/dev/null); then
+        out=($(echo "${kubectl_output}" | awk '{print $1}'))
+        COMPREPLY=( $( compgen -W "${out[*]}" -- "$cur" ) )
+    fi
+}
+
+__kubectl_get_resource()
+{
+    if [[ ${#nouns[@]} -eq 0 ]]; then
+        return 1
+    fi
+    __kubectl_parse_get ${nouns[${#nouns[@]} -1]}
+    if [[ $? -eq 0 ]]; then
+        return 0
+    fi
+}
+
+__custom_func() {
+    case ${last_command} in
+        kubectl_get | kubectl_describe | kubectl_delete | kubectl_stop)
+            __kubectl_get_resource
+            return
+            ;;
+        *)
+            ;;
+    esac
+}
+`)
+```
+
+And then I set that in my command definition:
+
+```go
+cmds := &cobra.Command{
+	Use:   "kubectl",
+	Short: "kubectl controls the Kubernetes cluster manager",
+	Long: `kubectl controls the Kubernetes cluster manager.
+
+Find more information at https://github.com/GoogleCloudPlatform/kubernetes.`,
+	Run: runHelp,
+	BashCompletionFunction: bash_completion_func,
+}
+```
+
+The `BashCompletionFunction` option is really only valid/useful on the root command. Doing the above will cause `__custom_func()` to be called when the built in processor was unable to find a solution. In the case of kubernetes a valid command might look something like `kubectl get pod [mypod]`. If you type `kubectl get pod [tab][tab]` the `__customc_func()` will run because the cobra.Command only understood "kubectl" and "get." `__custom_func()` will see that the cobra.Command is "kubectl_get" and will thus call another helper `__kubectl_get_resource()`.  `__kubectl_get_resource` will look at the 'nouns' collected. In our example the only noun will be `pod`.  So it will call `__kubectl_parse_get pod`.  `__kubectl_parse_get` will actually call out to kubernetes and get any pods.  It will then set `COMPREPLY` to valid pods!
+
+## Have the completions code complete your 'nouns'
+
+In the above example "pod" was assumed to already be typed. But if you want `kubectl get [tab][tab]` to show a list of valid "nouns" you have to set them. Simplified code from `kubectl get` looks like:
+
+```go
+validArgs []string = { "pod", "node", "service", "replicationcontroller" }
+
+cmd := &cobra.Command{
+	Use:     "get [(-o|--output=)json|yaml|template|...] (RESOURCE [NAME] | RESOURCE/NAME ...)",
+	Short:   "Display one or many resources",
+	Long:    get_long,
+	Example: get_example,
+	Run: func(cmd *cobra.Command, args []string) {
+		err := RunGet(f, out, cmd, args)
+		util.CheckErr(err)
+	},
+	ValidArgs: validArgs,
+}
+```
+
+Notice we put the "ValidArgs" on the "get" subcommand. Doing so will give results like
+
+```bash
+# kubectl get [tab][tab]
+node                 pod                    replicationcontroller  service
+```
+
+## Plural form and shortcuts for nouns
+
+If your nouns have a number of aliases, you can define them alongside `ValidArgs` using `ArgAliases`:
+
+```go`
+argAliases []string = { "pods", "nodes", "services", "svc", "replicationcontrollers", "rc" }
+
+cmd := &cobra.Command{
+    ...
+	ValidArgs:  validArgs,
+	ArgAliases: argAliases
+}
+```
+
+The aliases are not shown to the user on tab completion, but they are accepted as valid nouns by
+the completion algorithm if entered manually, e.g. in:
+
+```bash
+# kubectl get rc [tab][tab]
+backend        frontend       database 
+```
+
+Note that without declaring `rc` as an alias, the completion algorithm would show the list of nouns
+in this example again instead of the replication controllers.
+
+## Mark flags as required
+
+Most of the time completions will only show subcommands. But if a flag is required to make a subcommand work, you probably want it to show up when the user types [tab][tab].  Marking a flag as 'Required' is incredibly easy.
+
+```go
+cmd.MarkFlagRequired("pod")
+cmd.MarkFlagRequired("container")
+```
+
+and you'll get something like
+
+```bash
+# kubectl exec [tab][tab][tab]
+-c            --container=  -p            --pod=  
+```
+
+# Specify valid filename extensions for flags that take a filename
+
+In this example we use --filename= and expect to get a json or yaml file as the argument. To make this easier we annotate the --filename flag with valid filename extensions.
+
+```go
+	annotations := []string{"json", "yaml", "yml"}
+	annotation := make(map[string][]string)
+	annotation[cobra.BashCompFilenameExt] = annotations
+
+	flag := &pflag.Flag{
+		Name:        "filename",
+		Shorthand:   "f",
+		Usage:       usage,
+		Value:       value,
+		DefValue:    value.String(),
+		Annotations: annotation,
+	}
+	cmd.Flags().AddFlag(flag)
+```
+
+Now when you run a command with this filename flag you'll get something like
+
+```bash
+# kubectl create -f 
+test/                         example/                      rpmbuild/
+hello.yml                     test.json
+```
+
+So while there are many other files in the CWD it only shows me subdirs and those with valid extensions.
+
+# Specifiy custom flag completion
+
+Similar to the filename completion and filtering using cobra.BashCompFilenameExt, you can specifiy
+a custom flag completion function with cobra.BashCompCustom:
+
+```go
+	annotation := make(map[string][]string)
+	annotation[cobra.BashCompFilenameExt] = []string{"__kubectl_get_namespaces"}
+
+	flag := &pflag.Flag{
+		Name:        "namespace",
+		Usage:       usage,
+		Annotations: annotation,
+	}
+	cmd.Flags().AddFlag(flag)
+```
+
+In addition add the `__handle_namespace_flag` implementation in the `BashCompletionFunction`
+value, e.g.:
+
+```bash
+__kubectl_get_namespaces()
+{
+    local template
+    template="{{ range .items  }}{{ .metadata.name }} {{ end }}"
+    local kubectl_out
+    if kubectl_out=$(kubectl get -o template --template="${template}" namespace 2>/dev/null); then
+        COMPREPLY=( $( compgen -W "${kubectl_out}[*]" -- "$cur" ) )
+    fi
+}
+```

vendor/github.com/spf13/cobra/cobra.go

@@ -0,0 +1,173 @@
+// Copyright © 2013 Steve Francia <spf@spf13.com>.
+//
+// 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.
+
+// Commands similar to git, go tools and other modern CLI tools
+// inspired by go, go-Commander, gh and subcommand
+
+package cobra
+
+import (
+	"fmt"
+	"io"
+	"reflect"
+	"strconv"
+	"strings"
+	"text/template"
+	"unicode"
+)
+
+var templateFuncs = template.FuncMap{
+	"trim":               strings.TrimSpace,
+	"trimRightSpace":     trimRightSpace,
+	"appendIfNotPresent": appendIfNotPresent,
+	"rpad":               rpad,
+	"gt":                 Gt,
+	"eq":                 Eq,
+}
+
+var initializers []func()
+
+// Automatic prefix matching can be a dangerous thing to automatically enable in CLI tools.
+// Set this to true to enable it.
+var EnablePrefixMatching = false
+
+// EnableCommandSorting controls sorting of the slice of commands, which is turned on by default.
+// To disable sorting, set it to false.
+var EnableCommandSorting = true
+
+// AddTemplateFunc adds a template function that's available to Usage and Help
+// template generation.
+func AddTemplateFunc(name string, tmplFunc interface{}) {
+	templateFuncs[name] = tmplFunc
+}
+
+// AddTemplateFuncs adds multiple template functions availalble to Usage and
+// Help template generation.
+func AddTemplateFuncs(tmplFuncs template.FuncMap) {
+	for k, v := range tmplFuncs {
+		templateFuncs[k] = v
+	}
+}
+
+// OnInitialize takes a series of func() arguments and appends them to a slice of func().
+func OnInitialize(y ...func()) {
+	initializers = append(initializers, y...)
+}
+
+// Gt takes two types and checks whether the first type is greater than the second. In case of types Arrays, Chans,
+// Maps and Slices, Gt will compare their lengths. Ints are compared directly while strings are first parsed as
+// ints and then compared.
+func Gt(a interface{}, b interface{}) bool {
+	var left, right int64
+	av := reflect.ValueOf(a)
+
+	switch av.Kind() {
+	case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice:
+		left = int64(av.Len())
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		left = av.Int()
+	case reflect.String:
+		left, _ = strconv.ParseInt(av.String(), 10, 64)
+	}
+
+	bv := reflect.ValueOf(b)
+
+	switch bv.Kind() {
+	case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice:
+		right = int64(bv.Len())
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		right = bv.Int()
+	case reflect.String:
+		right, _ = strconv.ParseInt(bv.String(), 10, 64)
+	}
+
+	return left > right
+}
+
+// Eq takes two types and checks whether they are equal. Supported types are int and string. Unsupported types will panic.
+func Eq(a interface{}, b interface{}) bool {
+	av := reflect.ValueOf(a)
+	bv := reflect.ValueOf(b)
+
+	switch av.Kind() {
+	case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice:
+		panic("Eq called on unsupported type")
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return av.Int() == bv.Int()
+	case reflect.String:
+		return av.String() == bv.String()
+	}
+	return false
+}
+
+func trimRightSpace(s string) string {
+	return strings.TrimRightFunc(s, unicode.IsSpace)
+}
+
+// appendIfNotPresent will append stringToAppend to the end of s, but only if it's not yet present in s.
+func appendIfNotPresent(s, stringToAppend string) string {
+	if strings.Contains(s, stringToAppend) {
+		return s
+	}
+	return s + " " + stringToAppend
+}
+
+// rpad adds padding to the right of a string.
+func rpad(s string, padding int) string {
+	template := fmt.Sprintf("%%-%ds", padding)
+	return fmt.Sprintf(template, s)
+}
+
+// tmpl executes the given template text on data, writing the result to w.
+func tmpl(w io.Writer, text string, data interface{}) error {
+	t := template.New("top")
+	t.Funcs(templateFuncs)
+	template.Must(t.Parse(text))
+	return t.Execute(w, data)
+}
+
+// ld compares two strings and returns the levenshtein distance between them.
+func ld(s, t string, ignoreCase bool) int {
+	if ignoreCase {
+		s = strings.ToLower(s)
+		t = strings.ToLower(t)
+	}
+	d := make([][]int, len(s)+1)
+	for i := range d {
+		d[i] = make([]int, len(t)+1)
+	}
+	for i := range d {
+		d[i][0] = i
+	}
+	for j := range d[0] {
+		d[0][j] = j
+	}
+	for j := 1; j <= len(t); j++ {
+		for i := 1; i <= len(s); i++ {
+			if s[i-1] == t[j-1] {
+				d[i][j] = d[i-1][j-1]
+			} else {
+				min := d[i-1][j]
+				if d[i][j-1] < min {
+					min = d[i][j-1]
+				}
+				if d[i-1][j-1] < min {
+					min = d[i-1][j-1]
+				}
+				d[i][j] = min + 1
+			}
+		}
+
+	}
+	return d[len(s)][len(t)]
+}

vendor/github.com/spf13/cobra/command_notwin.go

@@ -0,0 +1,5 @@
+// +build !windows
+
+package cobra
+
+var preExecHookFn func(*Command)

vendor/github.com/spf13/cobra/command_win.go

@@ -0,0 +1,26 @@
+// +build windows
+
+package cobra
+
+import (
+	"os"
+	"time"
+
+	"github.com/inconshreveable/mousetrap"
+)
+
+var preExecHookFn = preExecHook
+
+// enables an information splash screen on Windows if the CLI is started from explorer.exe.
+var MousetrapHelpText string = `This is a command line tool
+
+You need to open cmd.exe and run it from there.
+`
+
+func preExecHook(c *Command) {
+	if mousetrap.StartedByExplorer() {
+		c.Print(MousetrapHelpText)
+		time.Sleep(5 * time.Second)
+		os.Exit(1)
+	}
+}

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

@@ -0,0 +1,21 @@
+sudo: false
+
+language: go
+
+go:
+        - 1.5.4
+        - 1.6.3
+        - 1.7
+        - 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 +1,275 @@
+[![Build Status](https://travis-ci.org/spf13/pflag.svg?branch=master)](https://travis-ci.org/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("boolname", "b", true, "help message")
+}
+flag.VarP(&flagVar, "varname", "v", 1234, "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")
+```
+
+## 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/ogier/pflag][2] after
+installation.
+
+[2]: http://localhost:6060/pkg/github.com/ogier/pflag
+[3]: http://godoc.org/github.com/ogier/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/count.go

@@ -0,0 +1,94 @@
+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 like Count only the flag is placed on the CommandLine isntead of a given flag set
+func Count(name string, usage string) *int {
+	return CommandLine.CountP(name, "", usage)
+}
+
+// CountP is like Count only takes a shorthand for the flag name.
+func CountP(name, shorthand string, usage string) *int {
+	return CommandLine.CountP(name, shorthand, usage)
+}

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

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

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

@@ -0,0 +1,947 @@
+// 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 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. See
+http://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html
+
+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.
+
+	import flag "github.com/ogier/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.
+	var ip = flag.Int("flagname", 1234, "help message for flagname")
+If you like, you can bind the flag to a variable using the Var() functions.
+	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
+	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
+	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.
+	fmt.Println("ip has value ", *ip)
+	fmt.Println("flagvar has value ", flagvar)
+
+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.
+	var ip = flag.IntP("flagname", "f", 1234, "help message")
+	var flagvar bool
+	func init() {
+		flag.BoolVarP("boolname", "b", true, "help message")
+	}
+	flag.VarP(&flagVar, "varname", "v", 1234, "help message")
+Shorthand letters can be used with single dashes on the command line.
+Boolean shorthand flags can be combined with other shorthand flags.
+
+Command line flag syntax:
+	--flag    // boolean flags only
+	--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.
+	// boolean flags
+	-f
+	-abc
+	// non-boolean flags
+	-n 1234
+	-Ifile
+	// mixed
+	-abcs "hello"
+	-abcn1234
+
+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.
+
+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.
+*/
+package pflag
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"sort"
+	"strings"
+)
+
+// ErrHelp is the error returned if the flag -help is invoked but no such flag is defined.
+var ErrHelp = errors.New("pflag: help requested")
+
+// ErrorHandling defines how to handle flag parsing errors.
+type ErrorHandling int
+
+const (
+	// ContinueOnError will return an err from Parse() if an error is found
+	ContinueOnError ErrorHandling = iota
+	// ExitOnError will call os.Exit(2) if an error is found when parsing
+	ExitOnError
+	// PanicOnError will panic() if an error is found when parsing flags
+	PanicOnError
+)
+
+// NormalizedName is a flag name that has been normalized according to rules
+// for the FlagSet (e.g. making '-' and '_' equivalent).
+type NormalizedName string
+
+// A FlagSet represents a set of defined flags.
+type FlagSet struct {
+	// Usage is the function called when an error occurs while parsing flags.
+	// The field is a function (not a method) that may be changed to point to
+	// a custom error handler.
+	Usage func()
+
+	name              string
+	parsed            bool
+	actual            map[NormalizedName]*Flag
+	formal            map[NormalizedName]*Flag
+	shorthands        map[byte]*Flag
+	args              []string // arguments after flags
+	argsLenAtDash     int      // len(args) when a '--' was located when parsing, or -1 if no --
+	exitOnError       bool     // does the program exit if there's an error?
+	errorHandling     ErrorHandling
+	output            io.Writer // nil means stderr; use out() accessor
+	interspersed      bool      // allow interspersed option/non-option args
+	normalizeNameFunc func(f *FlagSet, name string) NormalizedName
+}
+
+// A Flag represents the state of a flag.
+type Flag struct {
+	Name                string              // name as it appears on command line
+	Shorthand           string              // one-letter abbreviated flag
+	Usage               string              // help message
+	Value               Value               // value as set
+	DefValue            string              // default value (as text); for usage message
+	Changed             bool                // If the user set the value (or if left to default)
+	NoOptDefVal         string              //default value (as text); if the flag is on the command line without any options
+	Deprecated          string              // If this flag is deprecated, this string is the new or now thing to use
+	Hidden              bool                // used by cobra.Command to allow flags to be hidden from help/usage text
+	ShorthandDeprecated string              // If the shorthand of this flag is deprecated, this string is the new or now thing to use
+	Annotations         map[string][]string // used by cobra.Command bash autocomple code
+}
+
+// Value is the interface to the dynamic value stored in a flag.
+// (The default value is represented as a string.)
+type Value interface {
+	String() string
+	Set(string) error
+	Type() string
+}
+
+// sortFlags returns the flags as a slice in lexicographical sorted order.
+func sortFlags(flags map[NormalizedName]*Flag) []*Flag {
+	list := make(sort.StringSlice, len(flags))
+	i := 0
+	for k := range flags {
+		list[i] = string(k)
+		i++
+	}
+	list.Sort()
+	result := make([]*Flag, len(list))
+	for i, name := range list {
+		result[i] = flags[NormalizedName(name)]
+	}
+	return result
+}
+
+// SetNormalizeFunc allows you to add a function which can translate flag names.
+// Flags added to the FlagSet will be translated and then when anything tries to
+// look up the flag that will also be translated. So it would be possible to create
+// a flag named "getURL" and have it translated to "geturl".  A user could then pass
+// "--getUrl" which may also be translated to "geturl" and everything will work.
+func (f *FlagSet) SetNormalizeFunc(n func(f *FlagSet, name string) NormalizedName) {
+	f.normalizeNameFunc = n
+	for k, v := range f.formal {
+		delete(f.formal, k)
+		nname := f.normalizeFlagName(string(k))
+		f.formal[nname] = v
+		v.Name = string(nname)
+	}
+}
+
+// GetNormalizeFunc returns the previously set NormalizeFunc of a function which
+// does no translation, if not set previously.
+func (f *FlagSet) GetNormalizeFunc() func(f *FlagSet, name string) NormalizedName {
+	if f.normalizeNameFunc != nil {
+		return f.normalizeNameFunc
+	}
+	return func(f *FlagSet, name string) NormalizedName { return NormalizedName(name) }
+}
+
+func (f *FlagSet) normalizeFlagName(name string) NormalizedName {
+	n := f.GetNormalizeFunc()
+	return n(f, name)
+}
+
+func (f *FlagSet) out() io.Writer {
+	if f.output == nil {
+		return os.Stderr
+	}
+	return f.output
+}
+
+// SetOutput sets the destination for usage and error messages.
+// If output is nil, os.Stderr is used.
+func (f *FlagSet) SetOutput(output io.Writer) {
+	f.output = output
+}
+
+// VisitAll visits the flags in lexicographical order, calling fn for each.
+// It visits all flags, even those not set.
+func (f *FlagSet) VisitAll(fn func(*Flag)) {
+	for _, flag := range sortFlags(f.formal) {
+		fn(flag)
+	}
+}
+
+// HasFlags returns a bool to indicate if the FlagSet has any flags definied.
+func (f *FlagSet) HasFlags() bool {
+	return len(f.formal) > 0
+}
+
+// HasAvailableFlags returns a bool to indicate if the FlagSet has any flags
+// definied that are not hidden or deprecated.
+func (f *FlagSet) HasAvailableFlags() bool {
+	for _, flag := range f.formal {
+		if !flag.Hidden && len(flag.Deprecated) == 0 {
+			return true
+		}
+	}
+	return false
+}
+
+// VisitAll visits the command-line flags in lexicographical order, calling
+// fn for each.  It visits all flags, even those not set.
+func VisitAll(fn func(*Flag)) {
+	CommandLine.VisitAll(fn)
+}
+
+// Visit visits the flags in lexicographical order, calling fn for each.
+// It visits only those flags that have been set.
+func (f *FlagSet) Visit(fn func(*Flag)) {
+	for _, flag := range sortFlags(f.actual) {
+		fn(flag)
+	}
+}
+
+// Visit visits the command-line flags in lexicographical order, calling fn
+// for each.  It visits only those flags that have been set.
+func Visit(fn func(*Flag)) {
+	CommandLine.Visit(fn)
+}
+
+// Lookup returns the Flag structure of the named flag, returning nil if none exists.
+func (f *FlagSet) Lookup(name string) *Flag {
+	return f.lookup(f.normalizeFlagName(name))
+}
+
+// lookup returns the Flag structure of the named flag, returning nil if none exists.
+func (f *FlagSet) lookup(name NormalizedName) *Flag {
+	return f.formal[name]
+}
+
+// func to return a given type for a given flag name
+func (f *FlagSet) getFlagType(name string, ftype string, convFunc func(sval string) (interface{}, error)) (interface{}, error) {
+	flag := f.Lookup(name)
+	if flag == nil {
+		err := fmt.Errorf("flag accessed but not defined: %s", name)
+		return nil, err
+	}
+
+	if flag.Value.Type() != ftype {
+		err := fmt.Errorf("trying to get %s value of flag of type %s", ftype, flag.Value.Type())
+		return nil, err
+	}
+
+	sval := flag.Value.String()
+	result, err := convFunc(sval)
+	if err != nil {
+		return nil, err
+	}
+	return result, nil
+}
+
+// ArgsLenAtDash will return the length of f.Args at the moment when a -- was
+// found during arg parsing. This allows your program to know which args were
+// before the -- and which came after.
+func (f *FlagSet) ArgsLenAtDash() int {
+	return f.argsLenAtDash
+}
+
+// MarkDeprecated indicated that a flag is deprecated in your program. It will
+// continue to function but will not show up in help or usage messages. Using
+// this flag will also print the given usageMessage.
+func (f *FlagSet) MarkDeprecated(name string, usageMessage string) error {
+	flag := f.Lookup(name)
+	if flag == nil {
+		return fmt.Errorf("flag %q does not exist", name)
+	}
+	if len(usageMessage) == 0 {
+		return fmt.Errorf("deprecated message for flag %q must be set", name)
+	}
+	flag.Deprecated = usageMessage
+	return nil
+}
+
+// MarkShorthandDeprecated will mark the shorthand of a flag deprecated in your
+// program. It will continue to function but will not show up in help or usage
+// messages. Using this flag will also print the given usageMessage.
+func (f *FlagSet) MarkShorthandDeprecated(name string, usageMessage string) error {
+	flag := f.Lookup(name)
+	if flag == nil {
+		return fmt.Errorf("flag %q does not exist", name)
+	}
+	if len(usageMessage) == 0 {
+		return fmt.Errorf("deprecated message for flag %q must be set", name)
+	}
+	flag.ShorthandDeprecated = usageMessage
+	return nil
+}
+
+// MarkHidden sets a flag to 'hidden' in your program. It will continue to
+// function but will not show up in help or usage messages.
+func (f *FlagSet) MarkHidden(name string) error {
+	flag := f.Lookup(name)
+	if flag == nil {
+		return fmt.Errorf("flag %q does not exist", name)
+	}
+	flag.Hidden = true
+	return nil
+}
+
+// Lookup returns the Flag structure of the named command-line flag,
+// returning nil if none exists.
+func Lookup(name string) *Flag {
+	return CommandLine.Lookup(name)
+}
+
+// Set sets the value of the named flag.
+func (f *FlagSet) Set(name, value string) error {
+	normalName := f.normalizeFlagName(name)
+	flag, ok := f.formal[normalName]
+	if !ok {
+		return fmt.Errorf("no such flag -%v", name)
+	}
+	err := flag.Value.Set(value)
+	if err != nil {
+		return err
+	}
+	if f.actual == nil {
+		f.actual = make(map[NormalizedName]*Flag)
+	}
+	f.actual[normalName] = flag
+	flag.Changed = true
+	if len(flag.Deprecated) > 0 {
+		fmt.Fprintf(os.Stderr, "Flag --%s has been deprecated, %s\n", flag.Name, flag.Deprecated)
+	}
+	return nil
+}
+
+// SetAnnotation allows one to set arbitrary annotations on a flag in the FlagSet.
+// This is sometimes used by spf13/cobra programs which want to generate additional
+// bash completion information.
+func (f *FlagSet) SetAnnotation(name, key string, values []string) error {
+	normalName := f.normalizeFlagName(name)
+	flag, ok := f.formal[normalName]
+	if !ok {
+		return fmt.Errorf("no such flag -%v", name)
+	}
+	if flag.Annotations == nil {
+		flag.Annotations = map[string][]string{}
+	}
+	flag.Annotations[key] = values
+	return nil
+}
+
+// Changed returns true if the flag was explicitly set during Parse() and false
+// otherwise
+func (f *FlagSet) Changed(name string) bool {
+	flag := f.Lookup(name)
+	// If a flag doesn't exist, it wasn't changed....
+	if flag == nil {
+		return false
+	}
+	return flag.Changed
+}
+
+// Set sets the value of the named command-line flag.
+func Set(name, value string) error {
+	return CommandLine.Set(name, value)
+}
+
+// PrintDefaults prints, to standard error unless configured
+// otherwise, the default values of all defined flags in the set.
+func (f *FlagSet) PrintDefaults() {
+	usages := f.FlagUsages()
+	fmt.Fprintf(f.out(), "%s", usages)
+}
+
+// defaultIsZeroValue returns true if the default value for this flag represents
+// a zero value.
+func (f *Flag) defaultIsZeroValue() bool {
+	switch f.Value.(type) {
+	case boolFlag:
+		return f.DefValue == "false"
+	case *durationValue:
+		// Beginning in Go 1.7, duration zero values are "0s"
+		return f.DefValue == "0" || f.DefValue == "0s"
+	case *intValue, *int8Value, *int32Value, *int64Value, *uintValue, *uint8Value, *uint16Value, *uint32Value, *uint64Value, *countValue, *float32Value, *float64Value:
+		return f.DefValue == "0"
+	case *stringValue:
+		return f.DefValue == ""
+	case *ipValue, *ipMaskValue, *ipNetValue:
+		return f.DefValue == "<nil>"
+	case *intSliceValue, *stringSliceValue, *stringArrayValue:
+		return f.DefValue == "[]"
+	default:
+		switch f.Value.String() {
+		case "false":
+			return true
+		case "<nil>":
+			return true
+		case "":
+			return true
+		case "0":
+			return true
+		}
+		return false
+	}
+}
+
+// UnquoteUsage extracts a back-quoted name from the usage
+// string for a flag and returns it and the un-quoted usage.
+// Given "a `name` to show" it returns ("name", "a name to show").
+// If there are no back quotes, the name is an educated guess of the
+// type of the flag's value, or the empty string if the flag is boolean.
+func UnquoteUsage(flag *Flag) (name string, usage string) {
+	// Look for a back-quoted name, but avoid the strings package.
+	usage = flag.Usage
+	for i := 0; i < len(usage); i++ {
+		if usage[i] == '`' {
+			for j := i + 1; j < len(usage); j++ {
+				if usage[j] == '`' {
+					name = usage[i+1 : j]
+					usage = usage[:i] + name + usage[j+1:]
+					return name, usage
+				}
+			}
+			break // Only one back quote; use type name.
+		}
+	}
+
+	name = flag.Value.Type()
+	switch name {
+	case "bool":
+		name = ""
+	case "float64":
+		name = "float"
+	case "int64":
+		name = "int"
+	case "uint64":
+		name = "uint"
+	}
+
+	return
+}
+
+// FlagUsages Returns a string containing the usage information for all flags in
+// the FlagSet
+func (f *FlagSet) FlagUsages() string {
+	x := new(bytes.Buffer)
+
+	lines := make([]string, 0, len(f.formal))
+
+	maxlen := 0
+	f.VisitAll(func(flag *Flag) {
+		if len(flag.Deprecated) > 0 || flag.Hidden {
+			return
+		}
+
+		line := ""
+		if len(flag.Shorthand) > 0 && len(flag.ShorthandDeprecated) == 0 {
+			line = fmt.Sprintf("  -%s, --%s", flag.Shorthand, flag.Name)
+		} else {
+			line = fmt.Sprintf("      --%s", flag.Name)
+		}
+
+		varname, usage := UnquoteUsage(flag)
+		if len(varname) > 0 {
+			line += " " + varname
+		}
+		if len(flag.NoOptDefVal) > 0 {
+			switch flag.Value.Type() {
+			case "string":
+				line += fmt.Sprintf("[=%q]", flag.NoOptDefVal)
+			case "bool":
+				if flag.NoOptDefVal != "true" {
+					line += fmt.Sprintf("[=%s]", flag.NoOptDefVal)
+				}
+			default:
+				line += fmt.Sprintf("[=%s]", flag.NoOptDefVal)
+			}
+		}
+
+		// This special character will be replaced with spacing once the
+		// correct alignment is calculated
+		line += "\x00"
+		if len(line) > maxlen {
+			maxlen = len(line)
+		}
+
+		line += usage
+		if !flag.defaultIsZeroValue() {
+			if flag.Value.Type() == "string" {
+				line += fmt.Sprintf(" (default %q)", flag.DefValue)
+			} else {
+				line += fmt.Sprintf(" (default %s)", flag.DefValue)
+			}
+		}
+
+		lines = append(lines, line)
+	})
+
+	for _, line := range lines {
+		sidx := strings.Index(line, "\x00")
+		spacing := strings.Repeat(" ", maxlen-sidx)
+		fmt.Fprintln(x, line[:sidx], spacing, line[sidx+1:])
+	}
+
+	return x.String()
+}
+
+// PrintDefaults prints to standard error the default values of all defined command-line flags.
+func PrintDefaults() {
+	CommandLine.PrintDefaults()
+}
+
+// defaultUsage is the default function to print a usage message.
+func defaultUsage(f *FlagSet) {
+	fmt.Fprintf(f.out(), "Usage of %s:\n", f.name)
+	f.PrintDefaults()
+}
+
+// NOTE: Usage is not just defaultUsage(CommandLine)
+// because it serves (via godoc flag Usage) as the example
+// for how to write your own usage function.
+
+// Usage prints to standard error a usage message documenting all defined command-line flags.
+// The function is a variable that may be changed to point to a custom function.
+// By default it prints a simple header and calls PrintDefaults; for details about the
+// format of the output and how to control it, see the documentation for PrintDefaults.
+var Usage = func() {
+	fmt.Fprintf(os.Stderr, "Usage of %s:\n", os.Args[0])
+	PrintDefaults()
+}
+
+// NFlag returns the number of flags that have been set.
+func (f *FlagSet) NFlag() int { return len(f.actual) }
+
+// NFlag returns the number of command-line flags that have been set.
+func NFlag() int { return len(CommandLine.actual) }
+
+// Arg returns the i'th argument.  Arg(0) is the first remaining argument
+// after flags have been processed.
+func (f *FlagSet) Arg(i int) string {
+	if i < 0 || i >= len(f.args) {
+		return ""
+	}
+	return f.args[i]
+}
+
+// Arg returns the i'th command-line argument.  Arg(0) is the first remaining argument
+// after flags have been processed.
+func Arg(i int) string {
+	return CommandLine.Arg(i)
+}
+
+// NArg is the number of arguments remaining after flags have been processed.
+func (f *FlagSet) NArg() int { return len(f.args) }
+
+// NArg is the number of arguments remaining after flags have been processed.
+func NArg() int { return len(CommandLine.args) }
+
+// Args returns the non-flag arguments.
+func (f *FlagSet) Args() []string { return f.args }
+
+// Args returns the non-flag command-line arguments.
+func Args() []string { return CommandLine.args }
+
+// Var defines a flag with the specified name and usage string. The type and
+// value of the flag are represented by the first argument, of type Value, which
+// typically holds a user-defined implementation of Value. For instance, the
+// caller could create a flag that turns a comma-separated string into a slice
+// of strings by giving the slice the methods of Value; in particular, Set would
+// decompose the comma-separated string into the slice.
+func (f *FlagSet) Var(value Value, name string, usage string) {
+	f.VarP(value, name, "", usage)
+}
+
+// VarPF is like VarP, but returns the flag created
+func (f *FlagSet) VarPF(value Value, name, shorthand, usage string) *Flag {
+	// Remember the default value as a string; it won't change.
+	flag := &Flag{
+		Name:      name,
+		Shorthand: shorthand,
+		Usage:     usage,
+		Value:     value,
+		DefValue:  value.String(),
+	}
+	f.AddFlag(flag)
+	return flag
+}
+
+// VarP is like Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) VarP(value Value, name, shorthand, usage string) {
+	_ = f.VarPF(value, name, shorthand, usage)
+}
+
+// AddFlag will add the flag to the FlagSet
+func (f *FlagSet) AddFlag(flag *Flag) {
+	// Call normalizeFlagName function only once
+	normalizedFlagName := f.normalizeFlagName(flag.Name)
+
+	_, alreadythere := f.formal[normalizedFlagName]
+	if alreadythere {
+		msg := fmt.Sprintf("%s flag redefined: %s", f.name, flag.Name)
+		fmt.Fprintln(f.out(), msg)
+		panic(msg) // Happens only if flags are declared with identical names
+	}
+	if f.formal == nil {
+		f.formal = make(map[NormalizedName]*Flag)
+	}
+
+	flag.Name = string(normalizedFlagName)
+	f.formal[normalizedFlagName] = flag
+
+	if len(flag.Shorthand) == 0 {
+		return
+	}
+	if len(flag.Shorthand) > 1 {
+		fmt.Fprintf(f.out(), "%s shorthand more than ASCII character: %s\n", f.name, flag.Shorthand)
+		panic("shorthand is more than one character")
+	}
+	if f.shorthands == nil {
+		f.shorthands = make(map[byte]*Flag)
+	}
+	c := flag.Shorthand[0]
+	old, alreadythere := f.shorthands[c]
+	if alreadythere {
+		fmt.Fprintf(f.out(), "%s shorthand reused: %q for %s already used for %s\n", f.name, c, flag.Name, old.Name)
+		panic("shorthand redefinition")
+	}
+	f.shorthands[c] = flag
+}
+
+// AddFlagSet adds one FlagSet to another. If a flag is already present in f
+// the flag from newSet will be ignored
+func (f *FlagSet) AddFlagSet(newSet *FlagSet) {
+	if newSet == nil {
+		return
+	}
+	newSet.VisitAll(func(flag *Flag) {
+		if f.Lookup(flag.Name) == nil {
+			f.AddFlag(flag)
+		}
+	})
+}
+
+// Var defines a flag with the specified name and usage string. The type and
+// value of the flag are represented by the first argument, of type Value, which
+// typically holds a user-defined implementation of Value. For instance, the
+// caller could create a flag that turns a comma-separated string into a slice
+// of strings by giving the slice the methods of Value; in particular, Set would
+// decompose the comma-separated string into the slice.
+func Var(value Value, name string, usage string) {
+	CommandLine.VarP(value, name, "", usage)
+}
+
+// VarP is like Var, but accepts a shorthand letter that can be used after a single dash.
+func VarP(value Value, name, shorthand, usage string) {
+	CommandLine.VarP(value, name, shorthand, usage)
+}
+
+// failf prints to standard error a formatted error and usage message and
+// returns the error.
+func (f *FlagSet) failf(format string, a ...interface{}) error {
+	err := fmt.Errorf(format, a...)
+	fmt.Fprintln(f.out(), err)
+	f.usage()
+	return err
+}
+
+// usage calls the Usage method for the flag set, or the usage function if
+// the flag set is CommandLine.
+func (f *FlagSet) usage() {
+	if f == CommandLine {
+		Usage()
+	} else if f.Usage == nil {
+		defaultUsage(f)
+	} else {
+		f.Usage()
+	}
+}
+
+func (f *FlagSet) setFlag(flag *Flag, value string, origArg string) error {
+	if err := flag.Value.Set(value); err != nil {
+		return f.failf("invalid argument %q for %s: %v", value, origArg, err)
+	}
+	// mark as visited for Visit()
+	if f.actual == nil {
+		f.actual = make(map[NormalizedName]*Flag)
+	}
+	f.actual[f.normalizeFlagName(flag.Name)] = flag
+	flag.Changed = true
+	if len(flag.Deprecated) > 0 {
+		fmt.Fprintf(os.Stderr, "Flag --%s has been deprecated, %s\n", flag.Name, flag.Deprecated)
+	}
+	if len(flag.ShorthandDeprecated) > 0 && containsShorthand(origArg, flag.Shorthand) {
+		fmt.Fprintf(os.Stderr, "Flag shorthand -%s has been deprecated, %s\n", flag.Shorthand, flag.ShorthandDeprecated)
+	}
+	return nil
+}
+
+func containsShorthand(arg, shorthand string) bool {
+	// filter out flags --<flag_name>
+	if strings.HasPrefix(arg, "-") {
+		return false
+	}
+	arg = strings.SplitN(arg, "=", 2)[0]
+	return strings.Contains(arg, shorthand)
+}
+
+func (f *FlagSet) parseLongArg(s string, args []string) (a []string, err error) {
+	a = args
+	name := s[2:]
+	if len(name) == 0 || name[0] == '-' || name[0] == '=' {
+		err = f.failf("bad flag syntax: %s", s)
+		return
+	}
+	split := strings.SplitN(name, "=", 2)
+	name = split[0]
+	flag, alreadythere := f.formal[f.normalizeFlagName(name)]
+	if !alreadythere {
+		if name == "help" { // special case for nice help message.
+			f.usage()
+			return a, ErrHelp
+		}
+		err = f.failf("unknown flag: --%s", name)
+		return
+	}
+	var value string
+	if len(split) == 2 {
+		// '--flag=arg'
+		value = split[1]
+	} else if len(flag.NoOptDefVal) > 0 {
+		// '--flag' (arg was optional)
+		value = flag.NoOptDefVal
+	} else if len(a) > 0 {
+		// '--flag arg'
+		value = a[0]
+		a = a[1:]
+	} else {
+		// '--flag' (arg was required)
+		err = f.failf("flag needs an argument: %s", s)
+		return
+	}
+	err = f.setFlag(flag, value, s)
+	return
+}
+
+func (f *FlagSet) parseSingleShortArg(shorthands string, args []string) (outShorts string, outArgs []string, err error) {
+	if strings.HasPrefix(shorthands, "test.") {
+		return
+	}
+	outArgs = args
+	outShorts = shorthands[1:]
+	c := shorthands[0]
+
+	flag, alreadythere := f.shorthands[c]
+	if !alreadythere {
+		if c == 'h' { // special case for nice help message.
+			f.usage()
+			err = ErrHelp
+			return
+		}
+		//TODO continue on error
+		err = f.failf("unknown shorthand flag: %q in -%s", c, shorthands)
+		return
+	}
+	var value string
+	if len(shorthands) > 2 && shorthands[1] == '=' {
+		value = shorthands[2:]
+		outShorts = ""
+	} else if len(flag.NoOptDefVal) > 0 {
+		value = flag.NoOptDefVal
+	} else if len(shorthands) > 1 {
+		value = shorthands[1:]
+		outShorts = ""
+	} else if len(args) > 0 {
+		value = args[0]
+		outArgs = args[1:]
+	} else {
+		err = f.failf("flag needs an argument: %q in -%s", c, shorthands)
+		return
+	}
+	err = f.setFlag(flag, value, shorthands)
+	return
+}
+
+func (f *FlagSet) parseShortArg(s string, args []string) (a []string, err error) {
+	a = args
+	shorthands := s[1:]
+
+	for len(shorthands) > 0 {
+		shorthands, a, err = f.parseSingleShortArg(shorthands, args)
+		if err != nil {
+			return
+		}
+	}
+
+	return
+}
+
+func (f *FlagSet) parseArgs(args []string) (err error) {
+	for len(args) > 0 {
+		s := args[0]
+		args = args[1:]
+		if len(s) == 0 || s[0] != '-' || len(s) == 1 {
+			if !f.interspersed {
+				f.args = append(f.args, s)
+				f.args = append(f.args, args...)
+				return nil
+			}
+			f.args = append(f.args, s)
+			continue
+		}
+
+		if s[1] == '-' {
+			if len(s) == 2 { // "--" terminates the flags
+				f.argsLenAtDash = len(f.args)
+				f.args = append(f.args, args...)
+				break
+			}
+			args, err = f.parseLongArg(s, args)
+		} else {
+			args, err = f.parseShortArg(s, args)
+		}
+		if err != nil {
+			return
+		}
+	}
+	return
+}
+
+// Parse parses flag definitions from the argument list, which should not
+// include the command name.  Must be called after all flags in the FlagSet
+// are defined and before flags are accessed by the program.
+// The return value will be ErrHelp if -help was set but not defined.
+func (f *FlagSet) Parse(arguments []string) error {
+	f.parsed = true
+	f.args = make([]string, 0, len(arguments))
+	err := f.parseArgs(arguments)
+	if err != nil {
+		switch f.errorHandling {
+		case ContinueOnError:
+			return err
+		case ExitOnError:
+			os.Exit(2)
+		case PanicOnError:
+			panic(err)
+		}
+	}
+	return nil
+}
+
+// Parsed reports whether f.Parse has been called.
+func (f *FlagSet) Parsed() bool {
+	return f.parsed
+}
+
+// Parse parses the command-line flags from os.Args[1:].  Must be called
+// after all flags are defined and before flags are accessed by the program.
+func Parse() {
+	// Ignore errors; CommandLine is set for ExitOnError.
+	CommandLine.Parse(os.Args[1:])
+}
+
+// SetInterspersed sets whether to support interspersed option/non-option arguments.
+func SetInterspersed(interspersed bool) {
+	CommandLine.SetInterspersed(interspersed)
+}
+
+// Parsed returns true if the command-line flags have been parsed.
+func Parsed() bool {
+	return CommandLine.Parsed()
+}
+
+// CommandLine is the default set of command-line flags, parsed from os.Args.
+var CommandLine = NewFlagSet(os.Args[0], ExitOnError)
+
+// NewFlagSet returns a new, empty flag set with the specified name and
+// error handling property.
+func NewFlagSet(name string, errorHandling ErrorHandling) *FlagSet {
+	f := &FlagSet{
+		name:          name,
+		errorHandling: errorHandling,
+		argsLenAtDash: -1,
+		interspersed:  true,
+	}
+	return f
+}
+
+// SetInterspersed sets whether to support interspersed option/non-option arguments.
+func (f *FlagSet) SetInterspersed(interspersed bool) {
+	f.interspersed = interspersed
+}
+
+// Init sets the name and error handling property for a flag set.
+// By default, the zero FlagSet uses an empty name and the
+// ContinueOnError error handling policy.
+func (f *FlagSet) Init(name string, errorHandling ErrorHandling) {
+	f.name = name
+	f.errorHandling = errorHandling
+	f.argsLenAtDash = -1
+}

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 +1,104 @@
+// 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"
+	"fmt"
+	"reflect"
+	"strings"
+)
+
+var _ = fmt.Print
+
+// 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/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/ip.go

@@ -0,0 +1,96 @@
+package pflag
+
+import (
+	"fmt"
+	"net"
+	"strings"
+)
+
+var _ = strings.TrimSpace
+
+// -- 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/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 +1,100 @@
+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"
+}
+
+var _ = strings.TrimSpace
+
+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/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 +1,110 @@
+package pflag
+
+import (
+	"fmt"
+	"strings"
+)
+
+var _ = fmt.Fprint
+
+// -- 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 = strings.Trim(sval, "[]")
+	// 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_slice.go

@@ -0,0 +1,132 @@
+package pflag
+
+import (
+	"bytes"
+	"encoding/csv"
+	"fmt"
+	"strings"
+)
+
+var _ = fmt.Fprint
+
+// -- 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(), fmt.Sprintln()), 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 = strings.Trim(sval, "[]")
+	// 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/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)
+}