Update codegangsta/cli

To fix #122.
IsSet() doesn't return true even when env variables are set.

Godeps/Godeps.json

 {
 {
 	"ImportPath": "github.com/yudai/gotty",
 	"ImportPath": "github.com/yudai/gotty",
 	"GoVersion": "go1.7",
 	"GoVersion": "go1.7",
-	"GodepVersion": "v62",
+	"GodepVersion": "v79",
 	"Packages": [
 	"Packages": [
 		"./..."
 		"./..."
 	],
 	],
@@ -13,8 +13,8 @@
 		},
 		},
 		{
 		{
 			"ImportPath": "github.com/codegangsta/cli",
 			"ImportPath": "github.com/codegangsta/cli",
-			"Comment": "1.2.0-139-g142e6cd",
-			"Rev": "142e6cd241a4dfbf7f07a018f1f8225180018da4"
+			"Comment": "v1.19.1",
+			"Rev": "0bdeddeeb0f650497d603c4ad7b20cfe685682f6"
 		},
 		},
 		{
 		{
 			"ImportPath": "github.com/elazarl/go-bindata-assetfs",
 			"ImportPath": "github.com/elazarl/go-bindata-assetfs",

vendor/github.com/codegangsta/cli/.gitignore

+*.coverprofile
+node_modules/

vendor/github.com/codegangsta/cli/.travis.yml

 language: go
 language: go
+
 sudo: false
 sudo: false
 
 
+cache:
+  directories:
+  - node_modules
+
 go:
 go:
-- 1.0.3
-- 1.1.2
-- 1.2.2
-- 1.3.3
+- 1.2.x
+- 1.3.x
 - 1.4.2
 - 1.4.2
+- 1.5.x
+- 1.6.x
+- 1.7.x
+- master
+
+matrix:
+  allow_failures:
+  - go: master
+  include:
+  - go: 1.6.x
+    os: osx
+  - go: 1.7.x
+    os: osx
+
+before_script:
+- go get github.com/urfave/gfmrun/... || true
+- go get golang.org/x/tools/... || true
+- if [ ! -f node_modules/.bin/markdown-toc ] ; then
+    npm install markdown-toc ;
+  fi
 
 
 script:
 script:
-- go vet ./...
-- go test -v ./...
+- ./runtests gen
+- ./runtests vet
+- ./runtests test
+- ./runtests gfmrun
+- ./runtests toc

vendor/github.com/codegangsta/cli/LICENSE

-Copyright (C) 2013 Jeremy Saenz
-All Rights Reserved.
+MIT License
 
 
-MIT LICENSE
+Copyright (c) 2016 Jeremy Saenz & Contributors
 
 
-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:
+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
 The above copyright notice and this permission notice shall be included in all
 copies or substantial portions of the Software.
 copies or substantial portions of the Software.
 
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 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.
+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/codegangsta/cli/appveyor.yml

+version: "{build}"
+
+os: Windows Server 2012 R2
+
+clone_folder: c:\gopath\src\github.com\urfave\cli
+
+environment:
+  GOPATH: C:\gopath
+  GOVERSION: 1.6
+  PYTHON: C:\Python27-x64
+  PYTHON_VERSION: 2.7.x
+  PYTHON_ARCH: 64
+
+install:
+- set PATH=%GOPATH%\bin;C:\go\bin;%PATH%
+- go version
+- go env
+- go get github.com/urfave/gfmrun/...
+- go get -v -t ./...
+
+build_script:
+- python runtests vet
+- python runtests test
+- python runtests gfmrun

vendor/github.com/codegangsta/cli/category.go

+package cli
+
+// CommandCategories is a slice of *CommandCategory.
+type CommandCategories []*CommandCategory
+
+// CommandCategory is a category containing commands.
+type CommandCategory struct {
+	Name     string
+	Commands Commands
+}
+
+func (c CommandCategories) Less(i, j int) bool {
+	return c[i].Name < c[j].Name
+}
+
+func (c CommandCategories) Len() int {
+	return len(c)
+}
+
+func (c CommandCategories) Swap(i, j int) {
+	c[i], c[j] = c[j], c[i]
+}
+
+// AddCommand adds a command to a category.
+func (c CommandCategories) AddCommand(category string, command Command) CommandCategories {
+	for _, commandCategory := range c {
+		if commandCategory.Name == category {
+			commandCategory.Commands = append(commandCategory.Commands, command)
+			return c
+		}
+	}
+	return append(c, &CommandCategory{Name: category, Commands: []Command{command}})
+}
+
+// VisibleCommands returns a slice of the Commands with Hidden=false
+func (c *CommandCategory) VisibleCommands() []Command {
+	ret := []Command{}
+	for _, command := range c.Commands {
+		if !command.Hidden {
+			ret = append(ret, command)
+		}
+	}
+	return ret
+}

vendor/github.com/codegangsta/cli/cli.go

@@ -10,7 +10,7 @@
 //     app := cli.NewApp()
 //     app := cli.NewApp()
 //     app.Name = "greet"
 //     app.Name = "greet"
 //     app.Usage = "say a greeting"
 //     app.Usage = "say a greeting"
-//     app.Action = func(c *cli.Context) {
+//     app.Action = func(c *cli.Context) error {
 //       println("Greetings")
 //       println("Greetings")
 //     }
 //     }
 //
 //
@@ -18,23 +18,4 @@
 //   }
 //   }
 package cli
 package cli
 
 
-import (
-	"strings"
-)
-
-type MultiError struct {
-	Errors []error
-}
-
-func NewMultiError(err ...error) MultiError {
-	return MultiError{Errors: err}
-}
-
-func (m MultiError) Error() string {
-	errs := make([]string, len(m.Errors))
-	for i, err := range m.Errors {
-		errs[i] = err.Error()
-	}
-
-	return strings.Join(errs, "\n")
-}
+//go:generate python ./generate-flag-types cli -i flag-types.json -o flag_generated.go

vendor/github.com/codegangsta/cli/command.go

@@ -3,6 +3,7 @@ package cli
 import (
 import (
 	"fmt"
 	"fmt"
 	"io/ioutil"
 	"io/ioutil"
+	"sort"
 	"strings"
 	"strings"
 )
 )
 
 
@@ -16,31 +17,51 @@ type Command struct {
 	Aliases []string
 	Aliases []string
 	// A short description of the usage of this command
 	// A short description of the usage of this command
 	Usage string
 	Usage string
+	// Custom text to show on USAGE section of help
+	UsageText string
 	// A longer explanation of how the command works
 	// A longer explanation of how the command works
 	Description string
 	Description string
+	// A short description of the arguments of this command
+	ArgsUsage string
+	// The category the command is part of
+	Category string
 	// The function to call when checking for bash command completions
 	// The function to call when checking for bash command completions
-	BashComplete func(context *Context)
+	BashComplete BashCompleteFunc
 	// An action to execute before any sub-subcommands are run, but after the context is ready
 	// An action to execute before any sub-subcommands are run, but after the context is ready
 	// If a non-nil error is returned, no sub-subcommands are run
 	// If a non-nil error is returned, no sub-subcommands are run
-	Before func(context *Context) error
+	Before BeforeFunc
 	// An action to execute after any subcommands are run, but after the subcommand has finished
 	// An action to execute after any subcommands are run, but after the subcommand has finished
 	// It is run even if Action() panics
 	// It is run even if Action() panics
-	After func(context *Context) error
+	After AfterFunc
 	// The function to call when this command is invoked
 	// The function to call when this command is invoked
-	Action func(context *Context)
+	Action interface{}
+	// TODO: replace `Action: interface{}` with `Action: ActionFunc` once some kind
+	// of deprecation period has passed, maybe?
+
+	// Execute this function if a usage error occurs.
+	OnUsageError OnUsageErrorFunc
 	// List of child commands
 	// List of child commands
-	Subcommands []Command
+	Subcommands Commands
 	// List of flags to parse
 	// List of flags to parse
 	Flags []Flag
 	Flags []Flag
 	// Treat all flags as normal arguments if true
 	// Treat all flags as normal arguments if true
 	SkipFlagParsing bool
 	SkipFlagParsing bool
+	// Skip argument reordering which attempts to move flags before arguments,
+	// but only works if all flags appear after all arguments. This behavior was
+	// removed n version 2 since it only works under specific conditions so we
+	// backport here by exposing it as an option for compatibility.
+	SkipArgReorder bool
 	// Boolean to hide built-in help command
 	// Boolean to hide built-in help command
 	HideHelp bool
 	HideHelp bool
+	// Boolean to hide this command from help or completion
+	Hidden bool
 
 
+	// Full name of command for help, defaults to full command name, including parent commands.
+	HelpName        string
 	commandNamePath []string
 	commandNamePath []string
 }
 }
 
 
-// Returns the full name of the command.
+// FullName returns the full name of the command.
 // For subcommands this ensures that parent commands are part of the command path
 // For subcommands this ensures that parent commands are part of the command path
 func (c Command) FullName() string {
 func (c Command) FullName() string {
 	if c.commandNamePath == nil {
 	if c.commandNamePath == nil {
@@ -49,9 +70,12 @@ func (c Command) FullName() string {
 	return strings.Join(c.commandNamePath, " ")
 	return strings.Join(c.commandNamePath, " ")
 }
 }
 
 
-// Invokes the command given the context, parses ctx.Args() to generate command-specific flags
-func (c Command) Run(ctx *Context) error {
-	if len(c.Subcommands) > 0 || c.Before != nil || c.After != nil {
+// Commands is a slice of Command
+type Commands []Command
+
+// Run invokes the command given the context, parses ctx.Args() to generate command-specific flags
+func (c Command) Run(ctx *Context) (err error) {
+	if len(c.Subcommands) > 0 {
 		return c.startApp(ctx)
 		return c.startApp(ctx)
 	}
 	}
 
 
@@ -63,50 +87,50 @@ func (c Command) Run(ctx *Context) error {
 		)
 		)
 	}
 	}
 
 
-	if ctx.App.EnableBashCompletion {
-		c.Flags = append(c.Flags, BashCompletionFlag)
+	set, err := flagSet(c.Name, c.Flags)
+	if err != nil {
+		return err
 	}
 	}
-
-	set := flagSet(c.Name, c.Flags)
 	set.SetOutput(ioutil.Discard)
 	set.SetOutput(ioutil.Discard)
 
 
-	firstFlagIndex := -1
-	terminatorIndex := -1
-	for index, arg := range ctx.Args() {
-		if arg == "--" {
-			terminatorIndex = index
-			break
-		} else if strings.HasPrefix(arg, "-") && firstFlagIndex == -1 {
-			firstFlagIndex = index
+	if c.SkipFlagParsing {
+		err = set.Parse(append([]string{"--"}, ctx.Args().Tail()...))
+	} else if !c.SkipArgReorder {
+		firstFlagIndex := -1
+		terminatorIndex := -1
+		for index, arg := range ctx.Args() {
+			if arg == "--" {
+				terminatorIndex = index
+				break
+			} else if arg == "-" {
+				// Do nothing. A dash alone is not really a flag.
+				continue
+			} else if strings.HasPrefix(arg, "-") && firstFlagIndex == -1 {
+				firstFlagIndex = index
+			}
 		}
 		}
-	}
 
 
-	var err error
-	if firstFlagIndex > -1 && !c.SkipFlagParsing {
-		args := ctx.Args()
-		regularArgs := make([]string, len(args[1:firstFlagIndex]))
-		copy(regularArgs, args[1:firstFlagIndex])
+		if firstFlagIndex > -1 {
+			args := ctx.Args()
+			regularArgs := make([]string, len(args[1:firstFlagIndex]))
+			copy(regularArgs, args[1:firstFlagIndex])
 
 
-		var flagArgs []string
-		if terminatorIndex > -1 {
-			flagArgs = args[firstFlagIndex:terminatorIndex]
-			regularArgs = append(regularArgs, args[terminatorIndex:]...)
+			var flagArgs []string
+			if terminatorIndex > -1 {
+				flagArgs = args[firstFlagIndex:terminatorIndex]
+				regularArgs = append(regularArgs, args[terminatorIndex:]...)
+			} else {
+				flagArgs = args[firstFlagIndex:]
+			}
+
+			err = set.Parse(append(flagArgs, regularArgs...))
 		} else {
 		} else {
-			flagArgs = args[firstFlagIndex:]
+			err = set.Parse(ctx.Args().Tail())
 		}
 		}
-
-		err = set.Parse(append(flagArgs, regularArgs...))
 	} else {
 	} else {
 		err = set.Parse(ctx.Args().Tail())
 		err = set.Parse(ctx.Args().Tail())
 	}
 	}
 
 
-	if err != nil {
-		fmt.Fprintln(ctx.App.Writer, "Incorrect Usage.")
-		fmt.Fprintln(ctx.App.Writer)
-		ShowCommandHelp(ctx, c.Name)
-		return err
-	}
-
 	nerr := normalizeFlags(c.Flags, set)
 	nerr := normalizeFlags(c.Flags, set)
 	if nerr != nil {
 	if nerr != nil {
 		fmt.Fprintln(ctx.App.Writer, nerr)
 		fmt.Fprintln(ctx.App.Writer, nerr)
@@ -114,20 +138,67 @@ func (c Command) Run(ctx *Context) error {
 		ShowCommandHelp(ctx, c.Name)
 		ShowCommandHelp(ctx, c.Name)
 		return nerr
 		return nerr
 	}
 	}
-	context := NewContext(ctx.App, set, ctx)
 
 
+	context := NewContext(ctx.App, set, ctx)
 	if checkCommandCompletions(context, c.Name) {
 	if checkCommandCompletions(context, c.Name) {
 		return nil
 		return nil
 	}
 	}
 
 
+	if err != nil {
+		if c.OnUsageError != nil {
+			err := c.OnUsageError(ctx, err, false)
+			HandleExitCoder(err)
+			return err
+		}
+		fmt.Fprintln(ctx.App.Writer, "Incorrect Usage:", err.Error())
+		fmt.Fprintln(ctx.App.Writer)
+		ShowCommandHelp(ctx, c.Name)
+		return err
+	}
+
 	if checkCommandHelp(context, c.Name) {
 	if checkCommandHelp(context, c.Name) {
 		return nil
 		return nil
 	}
 	}
+
+	if c.After != nil {
+		defer func() {
+			afterErr := c.After(context)
+			if afterErr != nil {
+				HandleExitCoder(err)
+				if err != nil {
+					err = NewMultiError(err, afterErr)
+				} else {
+					err = afterErr
+				}
+			}
+		}()
+	}
+
+	if c.Before != nil {
+		err = c.Before(context)
+		if err != nil {
+			fmt.Fprintln(ctx.App.Writer, err)
+			fmt.Fprintln(ctx.App.Writer)
+			ShowCommandHelp(ctx, c.Name)
+			HandleExitCoder(err)
+			return err
+		}
+	}
+
+	if c.Action == nil {
+		c.Action = helpSubcommand.Action
+	}
+
 	context.Command = c
 	context.Command = c
-	c.Action(context)
-	return nil
+	err = HandleAction(c.Action, context)
+
+	if err != nil {
+		HandleExitCoder(err)
+	}
+	return err
 }
 }
 
 
+// Names returns the names including short names and aliases.
 func (c Command) Names() []string {
 func (c Command) Names() []string {
 	names := []string{c.Name}
 	names := []string{c.Name}
 
 
@@ -138,7 +209,7 @@ func (c Command) Names() []string {
 	return append(names, c.Aliases...)
 	return append(names, c.Aliases...)
 }
 }
 
 
-// Returns true if Command.Name or Command.ShortName matches given name
+// HasName returns true if Command.Name or Command.ShortName matches given name
 func (c Command) HasName(name string) bool {
 func (c Command) HasName(name string) bool {
 	for _, n := range c.Names() {
 	for _, n := range c.Names() {
 		if n == name {
 		if n == name {
@@ -150,9 +221,15 @@ func (c Command) HasName(name string) bool {
 
 
 func (c Command) startApp(ctx *Context) error {
 func (c Command) startApp(ctx *Context) error {
 	app := NewApp()
 	app := NewApp()
-
+	app.Metadata = ctx.App.Metadata
 	// set the name and usage
 	// set the name and usage
 	app.Name = fmt.Sprintf("%s %s", ctx.App.Name, c.Name)
 	app.Name = fmt.Sprintf("%s %s", ctx.App.Name, c.Name)
+	if c.HelpName == "" {
+		app.HelpName = c.HelpName
+	} else {
+		app.HelpName = app.Name
+	}
+
 	if c.Description != "" {
 	if c.Description != "" {
 		app.Usage = c.Description
 		app.Usage = c.Description
 	} else {
 	} else {
@@ -174,6 +251,13 @@ func (c Command) startApp(ctx *Context) error {
 	app.Email = ctx.App.Email
 	app.Email = ctx.App.Email
 	app.Writer = ctx.App.Writer
 	app.Writer = ctx.App.Writer
 
 
+	app.categories = CommandCategories{}
+	for _, command := range c.Subcommands {
+		app.categories = app.categories.AddCommand(command.Category, command)
+	}
+
+	sort.Sort(app.categories)
+
 	// bash completion
 	// bash completion
 	app.EnableBashCompletion = ctx.App.EnableBashCompletion
 	app.EnableBashCompletion = ctx.App.EnableBashCompletion
 	if c.BashComplete != nil {
 	if c.BashComplete != nil {
@@ -189,12 +273,14 @@ func (c Command) startApp(ctx *Context) error {
 		app.Action = helpSubcommand.Action
 		app.Action = helpSubcommand.Action
 	}
 	}
 
 
-	var newCmds []Command
-	for _, cc := range app.Commands {
-		cc.commandNamePath = []string{c.Name, cc.Name}
-		newCmds = append(newCmds, cc)
+	for index, cc := range app.Commands {
+		app.Commands[index].commandNamePath = []string{c.Name, cc.Name}
 	}
 	}
-	app.Commands = newCmds
 
 
 	return app.RunAsSubcommand(ctx)
 	return app.RunAsSubcommand(ctx)
 }
 }
+
+// VisibleFlags returns a slice of the Flags with Hidden=false
+func (c Command) VisibleFlags() []Flag {
+	return visibleFlags(c.Flags)
+}

vendor/github.com/codegangsta/cli/errors.go

+package cli
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"strings"
+)
+
+// OsExiter is the function used when the app exits. If not set defaults to os.Exit.
+var OsExiter = os.Exit
+
+// ErrWriter is used to write errors to the user. This can be anything
+// implementing the io.Writer interface and defaults to os.Stderr.
+var ErrWriter io.Writer = os.Stderr
+
+// MultiError is an error that wraps multiple errors.
+type MultiError struct {
+	Errors []error
+}
+
+// NewMultiError creates a new MultiError. Pass in one or more errors.
+func NewMultiError(err ...error) MultiError {
+	return MultiError{Errors: err}
+}
+
+// Error implements the error interface.
+func (m MultiError) Error() string {
+	errs := make([]string, len(m.Errors))
+	for i, err := range m.Errors {
+		errs[i] = err.Error()
+	}
+
+	return strings.Join(errs, "\n")
+}
+
+type ErrorFormatter interface {
+	Format(s fmt.State, verb rune)
+}
+
+// ExitCoder is the interface checked by `App` and `Command` for a custom exit
+// code
+type ExitCoder interface {
+	error
+	ExitCode() int
+}
+
+// ExitError fulfills both the builtin `error` interface and `ExitCoder`
+type ExitError struct {
+	exitCode int
+	message  interface{}
+}
+
+// NewExitError makes a new *ExitError
+func NewExitError(message interface{}, exitCode int) *ExitError {
+	return &ExitError{
+		exitCode: exitCode,
+		message:  message,
+	}
+}
+
+// Error returns the string message, fulfilling the interface required by
+// `error`
+func (ee *ExitError) Error() string {
+	return fmt.Sprintf("%v", ee.message)
+}
+
+// ExitCode returns the exit code, fulfilling the interface required by
+// `ExitCoder`
+func (ee *ExitError) ExitCode() int {
+	return ee.exitCode
+}
+
+// HandleExitCoder checks if the error fulfills the ExitCoder interface, and if
+// so prints the error to stderr (if it is non-empty) and calls OsExiter with the
+// given exit code.  If the given error is a MultiError, then this func is
+// called on all members of the Errors slice.
+func HandleExitCoder(err error) {
+	if err == nil {
+		return
+	}
+
+	if exitErr, ok := err.(ExitCoder); ok {
+		if err.Error() != "" {
+			if _, ok := exitErr.(ErrorFormatter); ok {
+				fmt.Fprintf(ErrWriter, "%+v\n", err)
+			} else {
+				fmt.Fprintln(ErrWriter, err)
+			}
+		}
+		OsExiter(exitErr.ExitCode())
+		return
+	}
+
+	if multiErr, ok := err.(MultiError); ok {
+		for _, merr := range multiErr.Errors {
+			HandleExitCoder(merr)
+		}
+		return
+	}
+
+	if err.Error() != "" {
+		if _, ok := err.(ErrorFormatter); ok {
+			fmt.Fprintf(ErrWriter, "%+v\n", err)
+		} else {
+			fmt.Fprintln(ErrWriter, err)
+		}
+	}
+	OsExiter(1)
+}

vendor/github.com/codegangsta/cli/flag-types.json

+[
+  {
+    "name": "Bool",
+    "type": "bool",
+    "value": false,
+    "context_default": "false",
+    "parser": "strconv.ParseBool(f.Value.String())"
+  },
+  {
+    "name": "BoolT",
+    "type": "bool",
+    "value": false,
+    "doctail": " that is true by default",
+    "context_default": "false",
+    "parser": "strconv.ParseBool(f.Value.String())"
+  },
+  {
+    "name": "Duration",
+    "type": "time.Duration",
+    "doctail": " (see https://golang.org/pkg/time/#ParseDuration)",
+    "context_default": "0",
+    "parser": "time.ParseDuration(f.Value.String())"
+  },
+  {
+    "name": "Float64",
+    "type": "float64",
+    "context_default": "0",
+    "parser": "strconv.ParseFloat(f.Value.String(), 64)"
+  },
+  {
+    "name": "Generic",
+    "type": "Generic",
+    "dest": false,
+    "context_default": "nil",
+    "context_type": "interface{}"
+  },
+  {
+    "name": "Int64",
+    "type": "int64",
+    "context_default": "0",
+    "parser": "strconv.ParseInt(f.Value.String(), 0, 64)"
+  },
+  {
+    "name": "Int",
+    "type": "int",
+    "context_default": "0",
+    "parser": "strconv.ParseInt(f.Value.String(), 0, 64)",
+    "parser_cast": "int(parsed)"
+  },
+  {
+    "name": "IntSlice",
+    "type": "*IntSlice",
+    "dest": false,
+    "context_default": "nil",
+    "context_type": "[]int",
+    "parser": "(f.Value.(*IntSlice)).Value(), error(nil)"
+  },
+  {
+    "name": "Int64Slice",
+    "type": "*Int64Slice",
+    "dest": false,
+    "context_default": "nil",
+    "context_type": "[]int64",
+    "parser": "(f.Value.(*Int64Slice)).Value(), error(nil)"
+  },
+  {
+    "name": "String",
+    "type": "string",
+    "context_default": "\"\"",
+    "parser": "f.Value.String(), error(nil)"
+  },
+  {
+    "name": "StringSlice",
+    "type": "*StringSlice",
+    "dest": false,
+    "context_default": "nil",
+    "context_type": "[]string",
+    "parser": "(f.Value.(*StringSlice)).Value(), error(nil)"
+  },
+  {
+    "name": "Uint64",
+    "type": "uint64",
+    "context_default": "0",
+    "parser": "strconv.ParseUint(f.Value.String(), 0, 64)"
+  },
+  {
+    "name": "Uint",
+    "type": "uint",
+    "context_default": "0",
+    "parser": "strconv.ParseUint(f.Value.String(), 0, 64)",
+    "parser_cast": "uint(parsed)"
+  }
+]

vendor/github.com/codegangsta/cli/funcs.go

+package cli
+
+// BashCompleteFunc is an action to execute when the bash-completion flag is set
+type BashCompleteFunc func(*Context)
+
+// BeforeFunc is an action to execute before any subcommands are run, but after
+// the context is ready if a non-nil error is returned, no subcommands are run
+type BeforeFunc func(*Context) error
+
+// AfterFunc is an action to execute after any subcommands are run, but after the
+// subcommand has finished it is run even if Action() panics
+type AfterFunc func(*Context) error
+
+// ActionFunc is the action to execute when no subcommands are specified
+type ActionFunc func(*Context) error
+
+// CommandNotFoundFunc is executed if the proper command cannot be found
+type CommandNotFoundFunc func(*Context, string)
+
+// OnUsageErrorFunc is executed if an usage error occurs. This is useful for displaying
+// customized usage error messages.  This function is able to replace the
+// original error messages.  If this function is not set, the "Incorrect usage"
+// is displayed and the execution is interrupted.
+type OnUsageErrorFunc func(context *Context, err error, isSubcommand bool) error
+
+// FlagStringFunc is used by the help generation to display a flag, which is
+// expected to be a single line.
+type FlagStringFunc func(Flag) string

vendor/github.com/codegangsta/cli/generate-flag-types

+#!/usr/bin/env python
+"""
+The flag types that ship with the cli library have many things in common, and
+so we can take advantage of the `go generate` command to create much of the
+source code from a list of definitions.  These definitions attempt to cover
+the parts that vary between flag types, and should evolve as needed.
+
+An example of the minimum definition needed is:
+
+    {
+      "name": "SomeType",
+      "type": "sometype",
+      "context_default": "nil"
+    }
+
+In this example, the code generated for the `cli` package will include a type
+named `SomeTypeFlag` that is expected to wrap a value of type `sometype`.
+Fetching values by name via `*cli.Context` will default to a value of `nil`.
+
+A more complete, albeit somewhat redundant, example showing all available
+definition keys is:
+
+    {
+      "name": "VeryMuchType",
+      "type": "*VeryMuchType",
+      "value": true,
+      "dest": false,
+      "doctail": " which really only wraps a []float64, oh well!",
+      "context_type": "[]float64",
+      "context_default": "nil",
+      "parser": "parseVeryMuchType(f.Value.String())",
+      "parser_cast": "[]float64(parsed)"
+    }
+
+The meaning of each field is as follows:
+
+               name (string) - The type "name", which will be suffixed with
+                               `Flag` when generating the type definition
+                               for `cli` and the wrapper type for `altsrc`
+               type (string) - The type that the generated `Flag` type for `cli`
+                               is expected to "contain" as its `.Value` member
+                value (bool) - Should the generated `cli` type have a `Value`
+                               member?
+                 dest (bool) - Should the generated `cli` type support a
+                               destination pointer?
+            doctail (string) - Additional docs for the `cli` flag type comment
+       context_type (string) - The literal type used in the `*cli.Context`
+                               reader func signature
+    context_default (string) - The literal value used as the default by the
+                               `*cli.Context` reader funcs when no value is
+                               present
+             parser (string) - Literal code used to parse the flag `f`,
+                               expected to have a return signature of
+                               (value, error)
+        parser_cast (string) - Literal code used to cast the `parsed` value
+                               returned from the `parser` code
+"""
+
+from __future__ import print_function, unicode_literals
+
+import argparse
+import json
+import os
+import subprocess
+import sys
+import tempfile
+import textwrap
+
+
+class _FancyFormatter(argparse.ArgumentDefaultsHelpFormatter,
+                      argparse.RawDescriptionHelpFormatter):
+    pass
+
+
+def main(sysargs=sys.argv[:]):
+    parser = argparse.ArgumentParser(
+        description='Generate flag type code!',
+        formatter_class=_FancyFormatter)
+    parser.add_argument(
+        'package',
+        type=str, default='cli', choices=_WRITEFUNCS.keys(),
+        help='Package for which flag types will be generated'
+    )
+    parser.add_argument(
+        '-i', '--in-json',
+        type=argparse.FileType('r'),
+        default=sys.stdin,
+        help='Input JSON file which defines each type to be generated'
+    )
+    parser.add_argument(
+        '-o', '--out-go',
+        type=argparse.FileType('w'),
+        default=sys.stdout,
+        help='Output file/stream to which generated source will be written'
+    )
+    parser.epilog = __doc__
+
+    args = parser.parse_args(sysargs[1:])
+    _generate_flag_types(_WRITEFUNCS[args.package], args.out_go, args.in_json)
+    return 0
+
+
+def _generate_flag_types(writefunc, output_go, input_json):
+    types = json.load(input_json)
+
+    tmp = tempfile.NamedTemporaryFile(suffix='.go', delete=False)
+    writefunc(tmp, types)
+    tmp.close()
+
+    new_content = subprocess.check_output(
+        ['goimports', tmp.name]
+    ).decode('utf-8')
+
+    print(new_content, file=output_go, end='')
+    output_go.flush()
+    os.remove(tmp.name)
+
+
+def _set_typedef_defaults(typedef):
+    typedef.setdefault('doctail', '')
+    typedef.setdefault('context_type', typedef['type'])
+    typedef.setdefault('dest', True)
+    typedef.setdefault('value', True)
+    typedef.setdefault('parser', 'f.Value, error(nil)')
+    typedef.setdefault('parser_cast', 'parsed')
+
+
+def _write_cli_flag_types(outfile, types):
+    _fwrite(outfile, """\
+        package cli
+
+        // WARNING: This file is generated!
+
+        """)
+
+    for typedef in types:
+        _set_typedef_defaults(typedef)
+
+        _fwrite(outfile, """\
+        // {name}Flag is a flag with type {type}{doctail}
+        type {name}Flag struct {{
+            Name string
+            Usage string
+            EnvVar string
+            Hidden bool
+        """.format(**typedef))
+
+        if typedef['value']:
+            _fwrite(outfile, """\
+            Value {type}
+            """.format(**typedef))
+
+        if typedef['dest']:
+            _fwrite(outfile, """\
+            Destination *{type}
+            """.format(**typedef))
+
+        _fwrite(outfile, "\n}\n\n")
+
+        _fwrite(outfile, """\
+            // String returns a readable representation of this value
+            // (for usage defaults)
+            func (f {name}Flag) String() string {{
+                return FlagStringer(f)
+            }}
+
+            // GetName returns the name of the flag
+            func (f {name}Flag) GetName() string {{
+                return f.Name
+            }}
+
+            // {name} looks up the value of a local {name}Flag, returns
+            // {context_default} if not found
+            func (c *Context) {name}(name string) {context_type} {{
+                return lookup{name}(name, c.flagSet)
+            }}
+
+            // Global{name} looks up the value of a global {name}Flag, returns
+            // {context_default} if not found
+            func (c *Context) Global{name}(name string) {context_type} {{
+                if fs := lookupGlobalFlagSet(name, c); fs != nil {{
+                    return lookup{name}(name, fs)
+                }}
+                return {context_default}
+            }}
+
+            func lookup{name}(name string, set *flag.FlagSet) {context_type} {{
+                f := set.Lookup(name)
+                if f != nil {{
+                    parsed, err := {parser}
+                    if err != nil {{
+                        return {context_default}
+                    }}
+                    return {parser_cast}
+                }}
+                return {context_default}
+            }}
+            """.format(**typedef))
+
+
+def _write_altsrc_flag_types(outfile, types):
+    _fwrite(outfile, """\
+        package altsrc
+
+        import (
+            "gopkg.in/urfave/cli.v1"
+        )
+
+        // WARNING: This file is generated!
+
+        """)
+
+    for typedef in types:
+        _set_typedef_defaults(typedef)
+
+        _fwrite(outfile, """\
+        // {name}Flag is the flag type that wraps cli.{name}Flag to allow
+        // for other values to be specified
+        type {name}Flag struct {{
+            cli.{name}Flag
+            set *flag.FlagSet
+        }}
+
+        // New{name}Flag creates a new {name}Flag
+        func New{name}Flag(fl cli.{name}Flag) *{name}Flag {{
+            return &{name}Flag{{{name}Flag: fl, set: nil}}
+        }}
+
+        // Apply saves the flagSet for later usage calls, then calls the
+        // wrapped {name}Flag.Apply
+        func (f *{name}Flag) Apply(set *flag.FlagSet) {{
+            f.set = set
+            f.{name}Flag.Apply(set)
+        }}
+
+        // ApplyWithError saves the flagSet for later usage calls, then calls the
+        // wrapped {name}Flag.ApplyWithError
+        func (f *{name}Flag) ApplyWithError(set *flag.FlagSet) error {{
+            f.set = set
+            return f.{name}Flag.ApplyWithError(set)
+        }}
+        """.format(**typedef))
+
+
+def _fwrite(outfile, text):
+    print(textwrap.dedent(text), end='', file=outfile)
+
+
+_WRITEFUNCS = {
+    'cli': _write_cli_flag_types,
+    'altsrc': _write_altsrc_flag_types
+}
+
+if __name__ == '__main__':
+    sys.exit(main())

vendor/github.com/codegangsta/cli/help.go

@@ -3,148 +3,170 @@ package cli
 import (
 import (
 	"fmt"
 	"fmt"
 	"io"
 	"io"
+	"os"
 	"strings"
 	"strings"
 	"text/tabwriter"
 	"text/tabwriter"
 	"text/template"
 	"text/template"
 )
 )
 
 
-// The text template for the Default help topic.
+// AppHelpTemplate is the text template for the Default help topic.
 // cli.go uses text/template to render templates. You can
 // cli.go uses text/template to render templates. You can
 // render custom help text by setting this variable.
 // render custom help text by setting this variable.
 var AppHelpTemplate = `NAME:
 var AppHelpTemplate = `NAME:
-   {{.Name}} - {{.Usage}}
+   {{.Name}}{{if .Usage}} - {{.Usage}}{{end}}
 
 
 USAGE:
 USAGE:
-   {{.Name}} {{if .Flags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} [arguments...]
-   {{if .Version}}
+   {{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Version}}{{if not .HideVersion}}
+
 VERSION:
 VERSION:
-   {{.Version}}
-   {{end}}{{if len .Authors}}
-AUTHOR(S):
-   {{range .Authors}}{{ . }}{{end}}
-   {{end}}{{if .Commands}}
-COMMANDS:
-   {{range .Commands}}{{join .Names ", "}}{{ "\t" }}{{.Usage}}
-   {{end}}{{end}}{{if .Flags}}
+   {{.Version}}{{end}}{{end}}{{if .Description}}
+
+DESCRIPTION:
+   {{.Description}}{{end}}{{if len .Authors}}
+
+AUTHOR{{with $length := len .Authors}}{{if ne 1 $length}}S{{end}}{{end}}:
+   {{range $index, $author := .Authors}}{{if $index}}
+   {{end}}{{$author}}{{end}}{{end}}{{if .VisibleCommands}}
+
+COMMANDS:{{range .VisibleCategories}}{{if .Name}}
+   {{.Name}}:{{end}}{{range .VisibleCommands}}
+     {{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}{{end}}{{end}}{{if .VisibleFlags}}
+
 GLOBAL OPTIONS:
 GLOBAL OPTIONS:
-   {{range .Flags}}{{.}}
-   {{end}}{{end}}{{if .Copyright }}
+   {{range $index, $option := .VisibleFlags}}{{if $index}}
+   {{end}}{{$option}}{{end}}{{end}}{{if .Copyright}}
+
 COPYRIGHT:
 COPYRIGHT:
-   {{.Copyright}}
-   {{end}}
+   {{.Copyright}}{{end}}
 `
 `
 
 
-// The text template for the command help topic.
+// CommandHelpTemplate is the text template for the command help topic.
 // cli.go uses text/template to render templates. You can
 // cli.go uses text/template to render templates. You can
 // render custom help text by setting this variable.
 // render custom help text by setting this variable.
 var CommandHelpTemplate = `NAME:
 var CommandHelpTemplate = `NAME:
-   {{.FullName}} - {{.Usage}}
+   {{.HelpName}} - {{.Usage}}
 
 
 USAGE:
 USAGE:
-   command {{.FullName}}{{if .Flags}} [command options]{{end}} [arguments...]{{if .Description}}
+   {{.HelpName}}{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{if .Category}}
+
+CATEGORY:
+   {{.Category}}{{end}}{{if .Description}}
 
 
 DESCRIPTION:
 DESCRIPTION:
-   {{.Description}}{{end}}{{if .Flags}}
+   {{.Description}}{{end}}{{if .VisibleFlags}}
 
 
 OPTIONS:
 OPTIONS:
-   {{range .Flags}}{{.}}
-   {{end}}{{ end }}
+   {{range .VisibleFlags}}{{.}}
+   {{end}}{{end}}
 `
 `
 
 
-// The text template for the subcommand help topic.
+// SubcommandHelpTemplate is the text template for the subcommand help topic.
 // cli.go uses text/template to render templates. You can
 // cli.go uses text/template to render templates. You can
 // render custom help text by setting this variable.
 // render custom help text by setting this variable.
 var SubcommandHelpTemplate = `NAME:
 var SubcommandHelpTemplate = `NAME:
-   {{.Name}} - {{.Usage}}
+   {{.HelpName}} - {{.Usage}}
 
 
 USAGE:
 USAGE:
-   {{.Name}} command{{if .Flags}} [command options]{{end}} [arguments...]
+   {{.HelpName}} command{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}
 
 
-COMMANDS:
-   {{range .Commands}}{{join .Names ", "}}{{ "\t" }}{{.Usage}}
-   {{end}}{{if .Flags}}
+COMMANDS:{{range .VisibleCategories}}{{if .Name}}
+   {{.Name}}:{{end}}{{range .VisibleCommands}}
+     {{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}
+{{end}}{{if .VisibleFlags}}
 OPTIONS:
 OPTIONS:
-   {{range .Flags}}{{.}}
+   {{range .VisibleFlags}}{{.}}
    {{end}}{{end}}
    {{end}}{{end}}
 `
 `
 
 
 var helpCommand = Command{
 var helpCommand = Command{
-	Name:    "help",
-	Aliases: []string{"h"},
-	Usage:   "Shows a list of commands or help for one command",
-	Action: func(c *Context) {
+	Name:      "help",
+	Aliases:   []string{"h"},
+	Usage:     "Shows a list of commands or help for one command",
+	ArgsUsage: "[command]",
+	Action: func(c *Context) error {
 		args := c.Args()
 		args := c.Args()
 		if args.Present() {
 		if args.Present() {
-			ShowCommandHelp(c, args.First())
-		} else {
-			ShowAppHelp(c)
+			return ShowCommandHelp(c, args.First())
 		}
 		}
+
+		ShowAppHelp(c)
+		return nil
 	},
 	},
 }
 }
 
 
 var helpSubcommand = Command{
 var helpSubcommand = Command{
-	Name:    "help",
-	Aliases: []string{"h"},
-	Usage:   "Shows a list of commands or help for one command",
-	Action: func(c *Context) {
+	Name:      "help",
+	Aliases:   []string{"h"},
+	Usage:     "Shows a list of commands or help for one command",
+	ArgsUsage: "[command]",
+	Action: func(c *Context) error {
 		args := c.Args()
 		args := c.Args()
 		if args.Present() {
 		if args.Present() {
-			ShowCommandHelp(c, args.First())
-		} else {
-			ShowSubcommandHelp(c)
+			return ShowCommandHelp(c, args.First())
 		}
 		}
+
+		return ShowSubcommandHelp(c)
 	},
 	},
 }
 }
 
 
 // Prints help for the App or Command
 // Prints help for the App or Command
 type helpPrinter func(w io.Writer, templ string, data interface{})
 type helpPrinter func(w io.Writer, templ string, data interface{})
 
 
+// HelpPrinter is a function that writes the help output. If not set a default
+// is used. The function signature is:
+// func(w io.Writer, templ string, data interface{})
 var HelpPrinter helpPrinter = printHelp
 var HelpPrinter helpPrinter = printHelp
 
 
-// Prints version for the App
+// VersionPrinter prints the version for the App
 var VersionPrinter = printVersion
 var VersionPrinter = printVersion
 
 
-func ShowAppHelp(c *Context) {
+// ShowAppHelp is an action that displays the help.
+func ShowAppHelp(c *Context) error {
 	HelpPrinter(c.App.Writer, AppHelpTemplate, c.App)
 	HelpPrinter(c.App.Writer, AppHelpTemplate, c.App)
+	return nil
 }
 }
 
 
-// Prints the list of subcommands as the default app completion method
+// DefaultAppComplete prints the list of subcommands as the default app completion method
 func DefaultAppComplete(c *Context) {
 func DefaultAppComplete(c *Context) {
 	for _, command := range c.App.Commands {
 	for _, command := range c.App.Commands {
+		if command.Hidden {
+			continue
+		}
 		for _, name := range command.Names() {
 		for _, name := range command.Names() {
 			fmt.Fprintln(c.App.Writer, name)
 			fmt.Fprintln(c.App.Writer, name)
 		}
 		}
 	}
 	}
 }
 }
 
 
-// Prints help for the given command
-func ShowCommandHelp(ctx *Context, command string) {
+// ShowCommandHelp prints help for the given command
+func ShowCommandHelp(ctx *Context, command string) error {
 	// show the subcommand help for a command with subcommands
 	// show the subcommand help for a command with subcommands
 	if command == "" {
 	if command == "" {
 		HelpPrinter(ctx.App.Writer, SubcommandHelpTemplate, ctx.App)
 		HelpPrinter(ctx.App.Writer, SubcommandHelpTemplate, ctx.App)
-		return
+		return nil
 	}
 	}
 
 
 	for _, c := range ctx.App.Commands {
 	for _, c := range ctx.App.Commands {
 		if c.HasName(command) {
 		if c.HasName(command) {
 			HelpPrinter(ctx.App.Writer, CommandHelpTemplate, c)
 			HelpPrinter(ctx.App.Writer, CommandHelpTemplate, c)
-			return
+			return nil
 		}
 		}
 	}
 	}
 
 
-	if ctx.App.CommandNotFound != nil {
-		ctx.App.CommandNotFound(ctx, command)
-	} else {
-		fmt.Fprintf(ctx.App.Writer, "No help topic for '%v'\n", command)
+	if ctx.App.CommandNotFound == nil {
+		return NewExitError(fmt.Sprintf("No help topic for '%v'", command), 3)
 	}
 	}
+
+	ctx.App.CommandNotFound(ctx, command)
+	return nil
 }
 }
 
 
-// Prints help for the given subcommand
-func ShowSubcommandHelp(c *Context) {
-	ShowCommandHelp(c, c.Command.Name)
+// ShowSubcommandHelp prints help for the given subcommand
+func ShowSubcommandHelp(c *Context) error {
+	return ShowCommandHelp(c, c.Command.Name)
 }
 }
 
 
-// Prints the version number of the App
+// ShowVersion prints the version number of the App
 func ShowVersion(c *Context) {
 func ShowVersion(c *Context) {
 	VersionPrinter(c)
 	VersionPrinter(c)
 }
 }
@@ -153,7 +175,7 @@ func printVersion(c *Context) {
 	fmt.Fprintf(c.App.Writer, "%v version %v\n", c.App.Name, c.App.Version)
 	fmt.Fprintf(c.App.Writer, "%v version %v\n", c.App.Name, c.App.Version)
 }
 }
 
 
-// Prints the lists of commands within a given context
+// ShowCompletions prints the lists of commands within a given context
 func ShowCompletions(c *Context) {
 func ShowCompletions(c *Context) {
 	a := c.App
 	a := c.App
 	if a != nil && a.BashComplete != nil {
 	if a != nil && a.BashComplete != nil {
@@ -161,7 +183,7 @@ func ShowCompletions(c *Context) {
 	}
 	}
 }
 }
 
 
-// Prints the custom completions for a given command
+// ShowCommandCompletions prints the custom completions for a given command
 func ShowCommandCompletions(ctx *Context, command string) {
 func ShowCommandCompletions(ctx *Context, command string) {
 	c := ctx.App.Command(command)
 	c := ctx.App.Command(command)
 	if c != nil && c.BashComplete != nil {
 	if c != nil && c.BashComplete != nil {
@@ -174,31 +196,42 @@ func printHelp(out io.Writer, templ string, data interface{}) {
 		"join": strings.Join,
 		"join": strings.Join,
 	}
 	}
 
 
-	w := tabwriter.NewWriter(out, 0, 8, 1, '\t', 0)
+	w := tabwriter.NewWriter(out, 1, 8, 2, ' ', 0)
 	t := template.Must(template.New("help").Funcs(funcMap).Parse(templ))
 	t := template.Must(template.New("help").Funcs(funcMap).Parse(templ))
 	err := t.Execute(w, data)
 	err := t.Execute(w, data)
 	if err != nil {
 	if err != nil {
-		panic(err)
+		// If the writer is closed, t.Execute will fail, and there's nothing
+		// we can do to recover.
+		if os.Getenv("CLI_TEMPLATE_ERROR_DEBUG") != "" {
+			fmt.Fprintf(ErrWriter, "CLI TEMPLATE ERROR: %#v\n", err)
+		}
+		return
 	}
 	}
 	w.Flush()
 	w.Flush()
 }
 }
 
 
 func checkVersion(c *Context) bool {
 func checkVersion(c *Context) bool {
-	if c.GlobalBool("version") || c.GlobalBool("v") || c.Bool("version") || c.Bool("v") {
-		ShowVersion(c)
-		return true
+	found := false
+	if VersionFlag.Name != "" {
+		eachName(VersionFlag.Name, func(name string) {
+			if c.GlobalBool(name) || c.Bool(name) {
+				found = true
+			}
+		})
 	}
 	}
-
-	return false
+	return found
 }
 }
 
 
 func checkHelp(c *Context) bool {
 func checkHelp(c *Context) bool {
-	if c.GlobalBool("h") || c.GlobalBool("help") || c.Bool("h") || c.Bool("help") {
-		ShowAppHelp(c)
-		return true
+	found := false
+	if HelpFlag.Name != "" {
+		eachName(HelpFlag.Name, func(name string) {
+			if c.GlobalBool(name) || c.Bool(name) {
+				found = true
+			}
+		})
 	}
 	}
-
-	return false
+	return found
 }
 }
 
 
 func checkCommandHelp(c *Context, name string) bool {
 func checkCommandHelp(c *Context, name string) bool {
@@ -211,7 +244,7 @@ func checkCommandHelp(c *Context, name string) bool {
 }
 }
 
 
 func checkSubcommandHelp(c *Context) bool {
 func checkSubcommandHelp(c *Context) bool {
-	if c.GlobalBool("h") || c.GlobalBool("help") {
+	if c.Bool("h") || c.Bool("help") {
 		ShowSubcommandHelp(c)
 		ShowSubcommandHelp(c)
 		return true
 		return true
 	}
 	}
@@ -219,20 +252,43 @@ func checkSubcommandHelp(c *Context) bool {
 	return false
 	return false
 }
 }
 
 
+func checkShellCompleteFlag(a *App, arguments []string) (bool, []string) {
+	if !a.EnableBashCompletion {
+		return false, arguments
+	}
+
+	pos := len(arguments) - 1
+	lastArg := arguments[pos]
+
+	if lastArg != "--"+BashCompletionFlag.Name {
+		return false, arguments
+	}
+
+	return true, arguments[:pos]
+}
+
 func checkCompletions(c *Context) bool {
 func checkCompletions(c *Context) bool {
-	if (c.GlobalBool(BashCompletionFlag.Name) || c.Bool(BashCompletionFlag.Name)) && c.App.EnableBashCompletion {
-		ShowCompletions(c)
-		return true
+	if !c.shellComplete {
+		return false
 	}
 	}
 
 
-	return false
+	if args := c.Args(); args.Present() {
+		name := args.First()
+		if cmd := c.App.Command(name); cmd != nil {
+			// let the command handle the completion
+			return false
+		}
+	}
+
+	ShowCompletions(c)
+	return true
 }
 }
 
 
 func checkCommandCompletions(c *Context, name string) bool {
 func checkCommandCompletions(c *Context, name string) bool {
-	if c.Bool(BashCompletionFlag.Name) && c.App.EnableBashCompletion {
-		ShowCommandCompletions(c, name)
-		return true
+	if !c.shellComplete {
+		return false
 	}
 	}
 
 
-	return false
+	ShowCommandCompletions(c, name)
+	return true
 }
 }

vendor/github.com/codegangsta/cli/runtests

+#!/usr/bin/env python
+from __future__ import print_function
+
+import argparse
+import os
+import sys
+import tempfile
+
+from subprocess import check_call, check_output
+
+
+PACKAGE_NAME = os.environ.get(
+    'CLI_PACKAGE_NAME', 'github.com/urfave/cli'
+)
+
+
+def main(sysargs=sys.argv[:]):
+    targets = {
+        'vet': _vet,
+        'test': _test,
+        'gfmrun': _gfmrun,
+        'toc': _toc,
+        'gen': _gen,
+    }
+
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        'target', nargs='?', choices=tuple(targets.keys()), default='test'
+    )
+    args = parser.parse_args(sysargs[1:])
+
+    targets[args.target]()
+    return 0
+
+
+def _test():
+    if check_output('go version'.split()).split()[2] < 'go1.2':
+        _run('go test -v .')
+        return
+
+    coverprofiles = []
+    for subpackage in ['', 'altsrc']:
+        coverprofile = 'cli.coverprofile'
+        if subpackage != '':
+            coverprofile = '{}.coverprofile'.format(subpackage)
+
+        coverprofiles.append(coverprofile)
+
+        _run('go test -v'.split() + [
+            '-coverprofile={}'.format(coverprofile),
+            ('{}/{}'.format(PACKAGE_NAME, subpackage)).rstrip('/')
+        ])
+
+    combined_name = _combine_coverprofiles(coverprofiles)
+    _run('go tool cover -func={}'.format(combined_name))
+    os.remove(combined_name)
+
+
+def _gfmrun():
+    go_version = check_output('go version'.split()).split()[2]
+    if go_version < 'go1.3':
+        print('runtests: skip on {}'.format(go_version), file=sys.stderr)
+        return
+    _run(['gfmrun', '-c', str(_gfmrun_count()), '-s', 'README.md'])
+
+
+def _vet():
+    _run('go vet ./...')
+
+
+def _toc():
+    _run('node_modules/.bin/markdown-toc -i README.md')
+    _run('git diff --exit-code')
+
+
+def _gen():
+    go_version = check_output('go version'.split()).split()[2]
+    if go_version < 'go1.5':
+        print('runtests: skip on {}'.format(go_version), file=sys.stderr)
+        return
+
+    _run('go generate ./...')
+    _run('git diff --exit-code')
+
+
+def _run(command):
+    if hasattr(command, 'split'):
+        command = command.split()
+    print('runtests: {}'.format(' '.join(command)), file=sys.stderr)
+    check_call(command)
+
+
+def _gfmrun_count():
+    with open('README.md') as infile:
+        lines = infile.read().splitlines()
+        return len(filter(_is_go_runnable, lines))
+
+
+def _is_go_runnable(line):
+    return line.startswith('package main')
+
+
+def _combine_coverprofiles(coverprofiles):
+    combined = tempfile.NamedTemporaryFile(
+        suffix='.coverprofile', delete=False
+    )
+    combined.write('mode: set\n')
+
+    for coverprofile in coverprofiles:
+        with open(coverprofile, 'r') as infile:
+            for line in infile.readlines():
+                if not line.startswith('mode: '):
+                    combined.write(line)
+
+    combined.flush()
+    name = combined.name
+    combined.close()
+    return name
+
+
+if __name__ == '__main__':
+    sys.exit(main())