[09/42] incubator-mynewt-newt git commit: Move newt source into a "newt" subdirectory.

[cc...@apache.org]

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newt/blob/e95057f4/newt/Godeps/_workspace/src/github.com/spf13/pflag/flag.go
----------------------------------------------------------------------
diff --git a/newt/Godeps/_workspace/src/github.com/spf13/pflag/flag.go b/newt/Godeps/_workspace/src/github.com/spf13/pflag/flag.go
new file mode 100644
index 0000000..865259b
--- /dev/null
+++ b/newt/Godeps/_workspace/src/github.com/spf13/pflag/flag.go
@@ -0,0 +1,749 @@
+// 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.
+
+/*
+	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 ErrorHandling = iota
+	ExitOnError
+	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
+	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
+	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
+}
+
+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)
+	}
+}
+
+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)
+	}
+}
+
+func (f *FlagSet) HasFlags() bool {
+	return len(f.formal) > 0
+}
+
+// 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\n", name)
+		return nil, err
+	}
+
+	if flag.Value.Type() != ftype {
+		err := fmt.Errorf("trying to get %s value of flag of type %s\n", ftype, flag.Value.Type())
+		return nil, err
+	}
+
+	sval := flag.Value.String()
+	result, err := convFunc(sval)
+	if err != nil {
+		return nil, err
+	}
+	return result, nil
+}
+
+// Mark a flag deprecated in your program
+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)
+	}
+	flag.Deprecated = usageMessage
+	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
+}
+
+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
+}
+
+// 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() {
+	f.VisitAll(func(flag *Flag) {
+		if len(flag.Deprecated) > 0 {
+			return
+		}
+		format := ""
+		// ex: w/ option string argument '-%s, --%s[=%q]: %s\n'
+		if len(flag.Shorthand) > 0 {
+			format = "  -%s, --%s"
+		} else {
+			format = "   %s   --%s"
+		}
+		if len(flag.NoOptDefVal) > 0 {
+			format = format + "["
+		}
+		if _, ok := flag.Value.(*stringValue); ok {
+			format = format + "=%q"
+		} else {
+			format = format + "=%s"
+		}
+		if len(flag.NoOptDefVal) > 0 {
+			format = format + "]"
+		}
+		format = format + ": %s\n"
+		fmt.Fprintf(f.out(), format, flag.Shorthand, flag.Name, flag.DefValue, flag.Usage)
+	})
+}
+
+func (f *FlagSet) FlagUsages() string {
+	x := new(bytes.Buffer)
+
+	f.VisitAll(func(flag *Flag) {
+		if len(flag.Deprecated) > 0 {
+			return
+		}
+		format := "--%s=%s: %s\n"
+		if _, ok := flag.Value.(*stringValue); ok {
+			// put quotes on the value
+			format = "--%s=%q: %s\n"
+		}
+		if len(flag.Shorthand) > 0 {
+			format = "  -%s, " + format
+		} else {
+			format = "   %s   " + format
+		}
+		fmt.Fprintf(x, format, flag.Shorthand, flag.Name, flag.DefValue, flag.Usage)
+	})
+
+	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.
+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)
+}
+
+// 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
+}
+
+// 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)
+}
+
+func (f *FlagSet) AddFlag(flag *Flag) {
+	// Call normalizeFlagName function only once
+	var normalizedFlagName NormalizedName = 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
+}
+
+// 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)
+}
+
+// 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)
+	}
+	return nil
+}
+
+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) {
+	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.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:])
+}
+
+// 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()
+}
+
+// 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,
+		interspersed:  true,
+	}
+	return f
+}
+
+// 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
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newt/blob/e95057f4/newt/Godeps/_workspace/src/github.com/spf13/pflag/flag_test.go
----------------------------------------------------------------------
diff --git a/newt/Godeps/_workspace/src/github.com/spf13/pflag/flag_test.go b/newt/Godeps/_workspace/src/github.com/spf13/pflag/flag_test.go
new file mode 100644
index 0000000..a5928e5
--- /dev/null
+++ b/newt/Godeps/_workspace/src/github.com/spf13/pflag/flag_test.go
@@ -0,0 +1,755 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package pflag
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net"
+	"os"
+	"reflect"
+	"sort"
+	"strings"
+	"testing"
+	"time"
+)
+
+var (
+	test_bool                    = Bool("test_bool", false, "bool value")
+	test_int                     = Int("test_int", 0, "int value")
+	test_int64                   = Int64("test_int64", 0, "int64 value")
+	test_uint                    = Uint("test_uint", 0, "uint value")
+	test_uint64                  = Uint64("test_uint64", 0, "uint64 value")
+	test_string                  = String("test_string", "0", "string value")
+	test_float64                 = Float64("test_float64", 0, "float64 value")
+	test_duration                = Duration("test_duration", 0, "time.Duration value")
+	test_optional_int            = Int("test_optional_int", 0, "optional int value")
+	normalizeFlagNameInvocations = 0
+)
+
+func boolString(s string) string {
+	if s == "0" {
+		return "false"
+	}
+	return "true"
+}
+
+func TestEverything(t *testing.T) {
+	m := make(map[string]*Flag)
+	desired := "0"
+	visitor := func(f *Flag) {
+		if len(f.Name) > 5 && f.Name[0:5] == "test_" {
+			m[f.Name] = f
+			ok := false
+			switch {
+			case f.Value.String() == desired:
+				ok = true
+			case f.Name == "test_bool" && f.Value.String() == boolString(desired):
+				ok = true
+			case f.Name == "test_duration" && f.Value.String() == desired+"s":
+				ok = true
+			}
+			if !ok {
+				t.Error("Visit: bad value", f.Value.String(), "for", f.Name)
+			}
+		}
+	}
+	VisitAll(visitor)
+	if len(m) != 9 {
+		t.Error("VisitAll misses some flags")
+		for k, v := range m {
+			t.Log(k, *v)
+		}
+	}
+	m = make(map[string]*Flag)
+	Visit(visitor)
+	if len(m) != 0 {
+		t.Errorf("Visit sees unset flags")
+		for k, v := range m {
+			t.Log(k, *v)
+		}
+	}
+	// Now set all flags
+	Set("test_bool", "true")
+	Set("test_int", "1")
+	Set("test_int64", "1")
+	Set("test_uint", "1")
+	Set("test_uint64", "1")
+	Set("test_string", "1")
+	Set("test_float64", "1")
+	Set("test_duration", "1s")
+	Set("test_optional_int", "1")
+	desired = "1"
+	Visit(visitor)
+	if len(m) != 9 {
+		t.Error("Visit fails after set")
+		for k, v := range m {
+			t.Log(k, *v)
+		}
+	}
+	// Now test they're visited in sort order.
+	var flagNames []string
+	Visit(func(f *Flag) { flagNames = append(flagNames, f.Name) })
+	if !sort.StringsAreSorted(flagNames) {
+		t.Errorf("flag names not sorted: %v", flagNames)
+	}
+}
+
+func TestUsage(t *testing.T) {
+	called := false
+	ResetForTesting(func() { called = true })
+	if GetCommandLine().Parse([]string{"--x"}) == nil {
+		t.Error("parse did not fail for unknown flag")
+	}
+	if !called {
+		t.Error("did not call Usage for unknown flag")
+	}
+}
+
+func TestAnnotation(t *testing.T) {
+	f := NewFlagSet("shorthand", ContinueOnError)
+
+	if err := f.SetAnnotation("missing-flag", "key", nil); err == nil {
+		t.Errorf("Expected error setting annotation on non-existent flag")
+	}
+
+	f.StringP("stringa", "a", "", "string value")
+	if err := f.SetAnnotation("stringa", "key", nil); err != nil {
+		t.Errorf("Unexpected error setting new nil annotation: %v", err)
+	}
+	if annotation := f.Lookup("stringa").Annotations["key"]; annotation != nil {
+		t.Errorf("Unexpected annotation: %v", annotation)
+	}
+
+	f.StringP("stringb", "b", "", "string2 value")
+	if err := f.SetAnnotation("stringb", "key", []string{"value1"}); err != nil {
+		t.Errorf("Unexpected error setting new annotation: %v", err)
+	}
+	if annotation := f.Lookup("stringb").Annotations["key"]; !reflect.DeepEqual(annotation, []string{"value1"}) {
+		t.Errorf("Unexpected annotation: %v", annotation)
+	}
+
+	if err := f.SetAnnotation("stringb", "key", []string{"value2"}); err != nil {
+		t.Errorf("Unexpected error updating annotation: %v", err)
+	}
+	if annotation := f.Lookup("stringb").Annotations["key"]; !reflect.DeepEqual(annotation, []string{"value2"}) {
+		t.Errorf("Unexpected annotation: %v", annotation)
+	}
+}
+
+func testParse(f *FlagSet, t *testing.T) {
+	if f.Parsed() {
+		t.Error("f.Parse() = true before Parse")
+	}
+	boolFlag := f.Bool("bool", false, "bool value")
+	bool2Flag := f.Bool("bool2", false, "bool2 value")
+	bool3Flag := f.Bool("bool3", false, "bool3 value")
+	intFlag := f.Int("int", 0, "int value")
+	int8Flag := f.Int8("int8", 0, "int value")
+	int32Flag := f.Int32("int32", 0, "int value")
+	int64Flag := f.Int64("int64", 0, "int64 value")
+	uintFlag := f.Uint("uint", 0, "uint value")
+	uint8Flag := f.Uint8("uint8", 0, "uint value")
+	uint16Flag := f.Uint16("uint16", 0, "uint value")
+	uint32Flag := f.Uint32("uint32", 0, "uint value")
+	uint64Flag := f.Uint64("uint64", 0, "uint64 value")
+	stringFlag := f.String("string", "0", "string value")
+	float32Flag := f.Float32("float32", 0, "float32 value")
+	float64Flag := f.Float64("float64", 0, "float64 value")
+	ipFlag := f.IP("ip", net.ParseIP("127.0.0.1"), "ip value")
+	maskFlag := f.IPMask("mask", ParseIPv4Mask("0.0.0.0"), "mask value")
+	durationFlag := f.Duration("duration", 5*time.Second, "time.Duration value")
+	optionalIntNoValueFlag := f.Int("optional-int-no-value", 0, "int value")
+	f.Lookup("optional-int-no-value").NoOptDefVal = "9"
+	optionalIntWithValueFlag := f.Int("optional-int-with-value", 0, "int value")
+	f.Lookup("optional-int-no-value").NoOptDefVal = "9"
+	extra := "one-extra-argument"
+	args := []string{
+		"--bool",
+		"--bool2=true",
+		"--bool3=false",
+		"--int=22",
+		"--int8=-8",
+		"--int32=-32",
+		"--int64=0x23",
+		"--uint", "24",
+		"--uint8=8",
+		"--uint16=16",
+		"--uint32=32",
+		"--uint64=25",
+		"--string=hello",
+		"--float32=-172e12",
+		"--float64=2718e28",
+		"--ip=10.11.12.13",
+		"--mask=255.255.255.0",
+		"--duration=2m",
+		"--optional-int-no-value",
+		"--optional-int-with-value=42",
+		extra,
+	}
+	if err := f.Parse(args); err != nil {
+		t.Fatal(err)
+	}
+	if !f.Parsed() {
+		t.Error("f.Parse() = false after Parse")
+	}
+	if *boolFlag != true {
+		t.Error("bool flag should be true, is ", *boolFlag)
+	}
+	if v, err := f.GetBool("bool"); err != nil || v != *boolFlag {
+		t.Error("GetBool does not work.")
+	}
+	if *bool2Flag != true {
+		t.Error("bool2 flag should be true, is ", *bool2Flag)
+	}
+	if *bool3Flag != false {
+		t.Error("bool3 flag should be false, is ", *bool2Flag)
+	}
+	if *intFlag != 22 {
+		t.Error("int flag should be 22, is ", *intFlag)
+	}
+	if v, err := f.GetInt("int"); err != nil || v != *intFlag {
+		t.Error("GetInt does not work.")
+	}
+	if *int8Flag != -8 {
+		t.Error("int8 flag should be 0x23, is ", *int8Flag)
+	}
+	if v, err := f.GetInt8("int8"); err != nil || v != *int8Flag {
+		t.Error("GetInt8 does not work.")
+	}
+	if *int32Flag != -32 {
+		t.Error("int32 flag should be 0x23, is ", *int32Flag)
+	}
+	if v, err := f.GetInt32("int32"); err != nil || v != *int32Flag {
+		t.Error("GetInt32 does not work.")
+	}
+	if *int64Flag != 0x23 {
+		t.Error("int64 flag should be 0x23, is ", *int64Flag)
+	}
+	if v, err := f.GetInt64("int64"); err != nil || v != *int64Flag {
+		t.Error("GetInt64 does not work.")
+	}
+	if *uintFlag != 24 {
+		t.Error("uint flag should be 24, is ", *uintFlag)
+	}
+	if v, err := f.GetUint("uint"); err != nil || v != *uintFlag {
+		t.Error("GetUint does not work.")
+	}
+	if *uint8Flag != 8 {
+		t.Error("uint8 flag should be 8, is ", *uint8Flag)
+	}
+	if v, err := f.GetUint8("uint8"); err != nil || v != *uint8Flag {
+		t.Error("GetUint8 does not work.")
+	}
+	if *uint16Flag != 16 {
+		t.Error("uint16 flag should be 16, is ", *uint16Flag)
+	}
+	if v, err := f.GetUint16("uint16"); err != nil || v != *uint16Flag {
+		t.Error("GetUint16 does not work.")
+	}
+	if *uint32Flag != 32 {
+		t.Error("uint32 flag should be 32, is ", *uint32Flag)
+	}
+	if v, err := f.GetUint32("uint32"); err != nil || v != *uint32Flag {
+		t.Error("GetUint32 does not work.")
+	}
+	if *uint64Flag != 25 {
+		t.Error("uint64 flag should be 25, is ", *uint64Flag)
+	}
+	if v, err := f.GetUint64("uint64"); err != nil || v != *uint64Flag {
+		t.Error("GetUint64 does not work.")
+	}
+	if *stringFlag != "hello" {
+		t.Error("string flag should be `hello`, is ", *stringFlag)
+	}
+	if v, err := f.GetString("string"); err != nil || v != *stringFlag {
+		t.Error("GetString does not work.")
+	}
+	if *float32Flag != -172e12 {
+		t.Error("float32 flag should be -172e12, is ", *float32Flag)
+	}
+	if v, err := f.GetFloat32("float32"); err != nil || v != *float32Flag {
+		t.Errorf("GetFloat32 returned %v but float32Flag was %v", v, *float32Flag)
+	}
+	if *float64Flag != 2718e28 {
+		t.Error("float64 flag should be 2718e28, is ", *float64Flag)
+	}
+	if v, err := f.GetFloat64("float64"); err != nil || v != *float64Flag {
+		t.Errorf("GetFloat64 returned %v but float64Flag was %v", v, *float64Flag)
+	}
+	if !(*ipFlag).Equal(net.ParseIP("10.11.12.13")) {
+		t.Error("ip flag should be 10.11.12.13, is ", *ipFlag)
+	}
+	if v, err := f.GetIP("ip"); err != nil || !v.Equal(*ipFlag) {
+		t.Errorf("GetIP returned %v but ipFlag was %v", v, *ipFlag)
+	}
+	if (*maskFlag).String() != ParseIPv4Mask("255.255.255.0").String() {
+		t.Error("mask flag should be 255.255.255.0, is ", (*maskFlag).String())
+	}
+	if v, err := f.GetIPv4Mask("mask"); err != nil || v.String() != (*maskFlag).String() {
+		t.Errorf("GetIP returned %v but maskFlag was %v", v, *maskFlag, err)
+	}
+	if *durationFlag != 2*time.Minute {
+		t.Error("duration flag should be 2m, is ", *durationFlag)
+	}
+	if v, err := f.GetDuration("duration"); err != nil || v != *durationFlag {
+		t.Error("GetDuration does not work.")
+	}
+	if _, err := f.GetInt("duration"); err == nil {
+		t.Error("GetInt parsed a time.Duration?!?!")
+	}
+	if *optionalIntNoValueFlag != 9 {
+		t.Error("optional int flag should be the default value, is ", *optionalIntNoValueFlag)
+	}
+	if *optionalIntWithValueFlag != 42 {
+		t.Error("optional int flag should be 42, is ", *optionalIntWithValueFlag)
+	}
+	if len(f.Args()) != 1 {
+		t.Error("expected one argument, got", len(f.Args()))
+	} else if f.Args()[0] != extra {
+		t.Errorf("expected argument %q got %q", extra, f.Args()[0])
+	}
+}
+
+func TestShorthand(t *testing.T) {
+	f := NewFlagSet("shorthand", ContinueOnError)
+	if f.Parsed() {
+		t.Error("f.Parse() = true before Parse")
+	}
+	boolaFlag := f.BoolP("boola", "a", false, "bool value")
+	boolbFlag := f.BoolP("boolb", "b", false, "bool2 value")
+	boolcFlag := f.BoolP("boolc", "c", false, "bool3 value")
+	booldFlag := f.BoolP("boold", "d", false, "bool4 value")
+	stringaFlag := f.StringP("stringa", "s", "0", "string value")
+	stringzFlag := f.StringP("stringz", "z", "0", "string value")
+	extra := "interspersed-argument"
+	notaflag := "--i-look-like-a-flag"
+	args := []string{
+		"-ab",
+		extra,
+		"-cs",
+		"hello",
+		"-z=something",
+		"-d=true",
+		"--",
+		notaflag,
+	}
+	f.SetOutput(ioutil.Discard)
+	if err := f.Parse(args); err != nil {
+		t.Error("expected no error, got ", err)
+	}
+	if !f.Parsed() {
+		t.Error("f.Parse() = false after Parse")
+	}
+	if *boolaFlag != true {
+		t.Error("boola flag should be true, is ", *boolaFlag)
+	}
+	if *boolbFlag != true {
+		t.Error("boolb flag should be true, is ", *boolbFlag)
+	}
+	if *boolcFlag != true {
+		t.Error("boolc flag should be true, is ", *boolcFlag)
+	}
+	if *booldFlag != true {
+		t.Error("boold flag should be true, is ", *booldFlag)
+	}
+	if *stringaFlag != "hello" {
+		t.Error("stringa flag should be `hello`, is ", *stringaFlag)
+	}
+	if *stringzFlag != "something" {
+		t.Error("stringz flag should be `something`, is ", *stringzFlag)
+	}
+	if len(f.Args()) != 2 {
+		t.Error("expected one argument, got", len(f.Args()))
+	} else if f.Args()[0] != extra {
+		t.Errorf("expected argument %q got %q", extra, f.Args()[0])
+	} else if f.Args()[1] != notaflag {
+		t.Errorf("expected argument %q got %q", notaflag, f.Args()[1])
+	}
+}
+
+func TestParse(t *testing.T) {
+	ResetForTesting(func() { t.Error("bad parse") })
+	testParse(GetCommandLine(), t)
+}
+
+func TestFlagSetParse(t *testing.T) {
+	testParse(NewFlagSet("test", ContinueOnError), t)
+}
+
+func replaceSeparators(name string, from []string, to string) string {
+	result := name
+	for _, sep := range from {
+		result = strings.Replace(result, sep, to, -1)
+	}
+	// Type convert to indicate normalization has been done.
+	return result
+}
+
+func wordSepNormalizeFunc(f *FlagSet, name string) NormalizedName {
+	seps := []string{"-", "_"}
+	name = replaceSeparators(name, seps, ".")
+	normalizeFlagNameInvocations++
+
+	return NormalizedName(name)
+}
+
+func testWordSepNormalizedNames(args []string, t *testing.T) {
+	f := NewFlagSet("normalized", ContinueOnError)
+	if f.Parsed() {
+		t.Error("f.Parse() = true before Parse")
+	}
+	withDashFlag := f.Bool("with-dash-flag", false, "bool value")
+	// Set this after some flags have been added and before others.
+	f.SetNormalizeFunc(wordSepNormalizeFunc)
+	withUnderFlag := f.Bool("with_under_flag", false, "bool value")
+	withBothFlag := f.Bool("with-both_flag", false, "bool value")
+	if err := f.Parse(args); err != nil {
+		t.Fatal(err)
+	}
+	if !f.Parsed() {
+		t.Error("f.Parse() = false after Parse")
+	}
+	if *withDashFlag != true {
+		t.Error("withDashFlag flag should be true, is ", *withDashFlag)
+	}
+	if *withUnderFlag != true {
+		t.Error("withUnderFlag flag should be true, is ", *withUnderFlag)
+	}
+	if *withBothFlag != true {
+		t.Error("withBothFlag flag should be true, is ", *withBothFlag)
+	}
+}
+
+func TestWordSepNormalizedNames(t *testing.T) {
+	args := []string{
+		"--with-dash-flag",
+		"--with-under-flag",
+		"--with-both-flag",
+	}
+	testWordSepNormalizedNames(args, t)
+
+	args = []string{
+		"--with_dash_flag",
+		"--with_under_flag",
+		"--with_both_flag",
+	}
+	testWordSepNormalizedNames(args, t)
+
+	args = []string{
+		"--with-dash_flag",
+		"--with-under_flag",
+		"--with-both_flag",
+	}
+	testWordSepNormalizedNames(args, t)
+}
+
+func aliasAndWordSepFlagNames(f *FlagSet, name string) NormalizedName {
+	seps := []string{"-", "_"}
+
+	oldName := replaceSeparators("old-valid_flag", seps, ".")
+	newName := replaceSeparators("valid-flag", seps, ".")
+
+	name = replaceSeparators(name, seps, ".")
+	switch name {
+	case oldName:
+		name = newName
+		break
+	}
+
+	return NormalizedName(name)
+}
+
+func TestCustomNormalizedNames(t *testing.T) {
+	f := NewFlagSet("normalized", ContinueOnError)
+	if f.Parsed() {
+		t.Error("f.Parse() = true before Parse")
+	}
+
+	validFlag := f.Bool("valid-flag", false, "bool value")
+	f.SetNormalizeFunc(aliasAndWordSepFlagNames)
+	someOtherFlag := f.Bool("some-other-flag", false, "bool value")
+
+	args := []string{"--old_valid_flag", "--some-other_flag"}
+	if err := f.Parse(args); err != nil {
+		t.Fatal(err)
+	}
+
+	if *validFlag != true {
+		t.Errorf("validFlag is %v even though we set the alias --old_valid_falg", *validFlag)
+	}
+	if *someOtherFlag != true {
+		t.Error("someOtherFlag should be true, is ", *someOtherFlag)
+	}
+}
+
+// Every flag we add, the name (displayed also in usage) should normalized
+func TestNormalizationFuncShouldChangeFlagName(t *testing.T) {
+	// Test normalization after addition
+	f := NewFlagSet("normalized", ContinueOnError)
+
+	f.Bool("valid_flag", false, "bool value")
+	if f.Lookup("valid_flag").Name != "valid_flag" {
+		t.Error("The new flag should have the name 'valid_flag' instead of ", f.Lookup("valid_flag").Name)
+	}
+
+	f.SetNormalizeFunc(wordSepNormalizeFunc)
+	if f.Lookup("valid_flag").Name != "valid.flag" {
+		t.Error("The new flag should have the name 'valid.flag' instead of ", f.Lookup("valid_flag").Name)
+	}
+
+	// Test normalization before addition
+	f = NewFlagSet("normalized", ContinueOnError)
+	f.SetNormalizeFunc(wordSepNormalizeFunc)
+
+	f.Bool("valid_flag", false, "bool value")
+	if f.Lookup("valid_flag").Name != "valid.flag" {
+		t.Error("The new flag should have the name 'valid.flag' instead of ", f.Lookup("valid_flag").Name)
+	}
+}
+
+// Declare a user-defined flag type.
+type flagVar []string
+
+func (f *flagVar) String() string {
+	return fmt.Sprint([]string(*f))
+}
+
+func (f *flagVar) Set(value string) error {
+	*f = append(*f, value)
+	return nil
+}
+
+func (f *flagVar) Type() string {
+	return "flagVar"
+}
+
+func TestUserDefined(t *testing.T) {
+	var flags FlagSet
+	flags.Init("test", ContinueOnError)
+	var v flagVar
+	flags.VarP(&v, "v", "v", "usage")
+	if err := flags.Parse([]string{"--v=1", "-v2", "-v", "3"}); err != nil {
+		t.Error(err)
+	}
+	if len(v) != 3 {
+		t.Fatal("expected 3 args; got ", len(v))
+	}
+	expect := "[1 2 3]"
+	if v.String() != expect {
+		t.Errorf("expected value %q got %q", expect, v.String())
+	}
+}
+
+func TestSetOutput(t *testing.T) {
+	var flags FlagSet
+	var buf bytes.Buffer
+	flags.SetOutput(&buf)
+	flags.Init("test", ContinueOnError)
+	flags.Parse([]string{"--unknown"})
+	if out := buf.String(); !strings.Contains(out, "--unknown") {
+		t.Logf("expected output mentioning unknown; got %q", out)
+	}
+}
+
+// This tests that one can reset the flags. This still works but not well, and is
+// superseded by FlagSet.
+func TestChangingArgs(t *testing.T) {
+	ResetForTesting(func() { t.Fatal("bad parse") })
+	oldArgs := os.Args
+	defer func() { os.Args = oldArgs }()
+	os.Args = []string{"cmd", "--before", "subcmd"}
+	before := Bool("before", false, "")
+	if err := GetCommandLine().Parse(os.Args[1:]); err != nil {
+		t.Fatal(err)
+	}
+	cmd := Arg(0)
+	os.Args = []string{"subcmd", "--after", "args"}
+	after := Bool("after", false, "")
+	Parse()
+	args := Args()
+
+	if !*before || cmd != "subcmd" || !*after || len(args) != 1 || args[0] != "args" {
+		t.Fatalf("expected true subcmd true [args] got %v %v %v %v", *before, cmd, *after, args)
+	}
+}
+
+// Test that -help invokes the usage message and returns ErrHelp.
+func TestHelp(t *testing.T) {
+	var helpCalled = false
+	fs := NewFlagSet("help test", ContinueOnError)
+	fs.Usage = func() { helpCalled = true }
+	var flag bool
+	fs.BoolVar(&flag, "flag", false, "regular flag")
+	// Regular flag invocation should work
+	err := fs.Parse([]string{"--flag=true"})
+	if err != nil {
+		t.Fatal("expected no error; got ", err)
+	}
+	if !flag {
+		t.Error("flag was not set by --flag")
+	}
+	if helpCalled {
+		t.Error("help called for regular flag")
+		helpCalled = false // reset for next test
+	}
+	// Help flag should work as expected.
+	err = fs.Parse([]string{"--help"})
+	if err == nil {
+		t.Fatal("error expected")
+	}
+	if err != ErrHelp {
+		t.Fatal("expected ErrHelp; got ", err)
+	}
+	if !helpCalled {
+		t.Fatal("help was not called")
+	}
+	// If we define a help flag, that should override.
+	var help bool
+	fs.BoolVar(&help, "help", false, "help flag")
+	helpCalled = false
+	err = fs.Parse([]string{"--help"})
+	if err != nil {
+		t.Fatal("expected no error for defined --help; got ", err)
+	}
+	if helpCalled {
+		t.Fatal("help was called; should not have been for defined help flag")
+	}
+}
+
+func TestNoInterspersed(t *testing.T) {
+	f := NewFlagSet("test", ContinueOnError)
+	f.SetInterspersed(false)
+	f.Bool("true", true, "always true")
+	f.Bool("false", false, "always false")
+	err := f.Parse([]string{"--true", "break", "--false"})
+	if err != nil {
+		t.Fatal("expected no error; got ", err)
+	}
+	args := f.Args()
+	if len(args) != 2 || args[0] != "break" || args[1] != "--false" {
+		t.Fatal("expected interspersed options/non-options to fail")
+	}
+}
+
+func TestTermination(t *testing.T) {
+	f := NewFlagSet("termination", ContinueOnError)
+	boolFlag := f.BoolP("bool", "l", false, "bool value")
+	if f.Parsed() {
+		t.Error("f.Parse() = true before Parse")
+	}
+	arg1 := "ls"
+	arg2 := "-l"
+	args := []string{
+		"--",
+		arg1,
+		arg2,
+	}
+	f.SetOutput(ioutil.Discard)
+	if err := f.Parse(args); err != nil {
+		t.Fatal("expected no error; got ", err)
+	}
+	if !f.Parsed() {
+		t.Error("f.Parse() = false after Parse")
+	}
+	if *boolFlag {
+		t.Error("expected boolFlag=false, got true")
+	}
+	if len(f.Args()) != 2 {
+		t.Errorf("expected 2 arguments, got %d: %v", len(f.Args()), f.Args())
+	}
+	if f.Args()[0] != arg1 {
+		t.Errorf("expected argument %q got %q", arg1, f.Args()[0])
+	}
+	if f.Args()[1] != arg2 {
+		t.Errorf("expected argument %q got %q", arg2, f.Args()[1])
+	}
+}
+
+func TestDeprecatedFlagInDocs(t *testing.T) {
+	f := NewFlagSet("bob", ContinueOnError)
+	f.Bool("badflag", true, "always true")
+	f.MarkDeprecated("badflag", "use --good-flag instead")
+
+	out := new(bytes.Buffer)
+	f.SetOutput(out)
+	f.PrintDefaults()
+
+	if strings.Contains(out.String(), "badflag") {
+		t.Errorf("found deprecated flag in usage!")
+	}
+}
+
+func parseReturnStderr(t *testing.T, f *FlagSet, args []string) (string, error) {
+	oldStderr := os.Stderr
+	r, w, _ := os.Pipe()
+	os.Stderr = w
+
+	err := f.Parse(args)
+
+	outC := make(chan string)
+	// copy the output in a separate goroutine so printing can't block indefinitely
+	go func() {
+		var buf bytes.Buffer
+		io.Copy(&buf, r)
+		outC <- buf.String()
+	}()
+
+	w.Close()
+	os.Stderr = oldStderr
+	out := <-outC
+
+	return out, err
+}
+
+func TestDeprecatedFlagUsage(t *testing.T) {
+	f := NewFlagSet("bob", ContinueOnError)
+	f.Bool("badflag", true, "always true")
+	usageMsg := "use --good-flag instead"
+	f.MarkDeprecated("badflag", usageMsg)
+
+	args := []string{"--badflag"}
+	out, err := parseReturnStderr(t, f, args)
+	if err != nil {
+		t.Fatal("expected no error; got ", err)
+	}
+
+	if !strings.Contains(out, usageMsg) {
+		t.Errorf("usageMsg not printed when using a deprecated flag!")
+	}
+}
+
+func TestDeprecatedFlagUsageNormalized(t *testing.T) {
+	f := NewFlagSet("bob", ContinueOnError)
+	f.Bool("bad-double_flag", true, "always true")
+	f.SetNormalizeFunc(wordSepNormalizeFunc)
+	usageMsg := "use --good-flag instead"
+	f.MarkDeprecated("bad_double-flag", usageMsg)
+
+	args := []string{"--bad_double_flag"}
+	out, err := parseReturnStderr(t, f, args)
+	if err != nil {
+		t.Fatal("expected no error; got ", err)
+	}
+
+	if !strings.Contains(out, usageMsg) {
+		t.Errorf("usageMsg not printed when using a deprecated flag!")
+	}
+}
+
+// Name normalization function should be called only once on flag addition
+func TestMultipleNormalizeFlagNameInvocations(t *testing.T) {
+	normalizeFlagNameInvocations = 0
+
+	f := NewFlagSet("normalized", ContinueOnError)
+	f.SetNormalizeFunc(wordSepNormalizeFunc)
+	f.Bool("with_under_flag", false, "bool value")
+
+	if normalizeFlagNameInvocations != 1 {
+		t.Fatal("Expected normalizeFlagNameInvocations to be 1; got ", normalizeFlagNameInvocations)
+	}
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newt/blob/e95057f4/newt/Godeps/_workspace/src/github.com/spf13/pflag/float32.go
----------------------------------------------------------------------
diff --git a/newt/Godeps/_workspace/src/github.com/spf13/pflag/float32.go b/newt/Godeps/_workspace/src/github.com/spf13/pflag/float32.go
new file mode 100644
index 0000000..30174cb
--- /dev/null
+++ b/newt/Godeps/_workspace/src/github.com/spf13/pflag/float32.go
@@ -0,0 +1,91 @@
+package pflag
+
+import (
+	"fmt"
+	"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 fmt.Sprintf("%v", *f) }
+
+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)
+}
+
+// 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)
+}
+
+// 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
+}
+
+// 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)
+}
+
+// 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)
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newt/blob/e95057f4/newt/Godeps/_workspace/src/github.com/spf13/pflag/float64.go
----------------------------------------------------------------------
diff --git a/newt/Godeps/_workspace/src/github.com/spf13/pflag/float64.go b/newt/Godeps/_workspace/src/github.com/spf13/pflag/float64.go
new file mode 100644
index 0000000..10e17e4
--- /dev/null
+++ b/newt/Godeps/_workspace/src/github.com/spf13/pflag/float64.go
@@ -0,0 +1,87 @@
+package pflag
+
+import (
+	"fmt"
+	"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 fmt.Sprintf("%v", *f) }
+
+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)
+}
+
+// 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)
+}
+
+// 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
+}
+
+// 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)
+}
+
+// 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)
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newt/blob/e95057f4/newt/Godeps/_workspace/src/github.com/spf13/pflag/int.go
----------------------------------------------------------------------
diff --git a/newt/Godeps/_workspace/src/github.com/spf13/pflag/int.go b/newt/Godeps/_workspace/src/github.com/spf13/pflag/int.go
new file mode 100644
index 0000000..23f70dd
--- /dev/null
+++ b/newt/Godeps/_workspace/src/github.com/spf13/pflag/int.go
@@ -0,0 +1,87 @@
+package pflag
+
+import (
+	"fmt"
+	"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 fmt.Sprintf("%v", *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)
+}
+
+// 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)
+}
+
+// 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
+}
+
+// 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)
+}
+
+// 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)
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newt/blob/e95057f4/newt/Godeps/_workspace/src/github.com/spf13/pflag/int32.go
----------------------------------------------------------------------
diff --git a/newt/Godeps/_workspace/src/github.com/spf13/pflag/int32.go b/newt/Godeps/_workspace/src/github.com/spf13/pflag/int32.go
new file mode 100644
index 0000000..515f90b
--- /dev/null
+++ b/newt/Godeps/_workspace/src/github.com/spf13/pflag/int32.go
@@ -0,0 +1,91 @@
+package pflag
+
+import (
+	"fmt"
+	"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 fmt.Sprintf("%v", *i) }
+
+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)
+}
+
+// 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)
+}
+
+// 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
+}
+
+// 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)
+}
+
+// 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)
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newt/blob/e95057f4/newt/Godeps/_workspace/src/github.com/spf13/pflag/int64.go
----------------------------------------------------------------------
diff --git a/newt/Godeps/_workspace/src/github.com/spf13/pflag/int64.go b/newt/Godeps/_workspace/src/github.com/spf13/pflag/int64.go
new file mode 100644
index 0000000..b77ade4
--- /dev/null
+++ b/newt/Godeps/_workspace/src/github.com/spf13/pflag/int64.go
@@ -0,0 +1,87 @@
+package pflag
+
+import (
+	"fmt"
+	"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 fmt.Sprintf("%v", *i) }
+
+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)
+}
+
+// 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)
+}
+
+// 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
+}
+
+// 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)
+}
+
+// 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)
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newt/blob/e95057f4/newt/Godeps/_workspace/src/github.com/spf13/pflag/int8.go
----------------------------------------------------------------------
diff --git a/newt/Godeps/_workspace/src/github.com/spf13/pflag/int8.go b/newt/Godeps/_workspace/src/github.com/spf13/pflag/int8.go
new file mode 100644
index 0000000..c51cb4f
--- /dev/null
+++ b/newt/Godeps/_workspace/src/github.com/spf13/pflag/int8.go
@@ -0,0 +1,91 @@
+package pflag
+
+import (
+	"fmt"
+	"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 fmt.Sprintf("%v", *i) }
+
+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)
+}
+
+// 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)
+}
+
+// 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
+}
+
+// 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)
+}
+
+// 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)
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newt/blob/e95057f4/newt/Godeps/_workspace/src/github.com/spf13/pflag/int_slice.go
----------------------------------------------------------------------
diff --git a/newt/Godeps/_workspace/src/github.com/spf13/pflag/int_slice.go b/newt/Godeps/_workspace/src/github.com/spf13/pflag/int_slice.go
new file mode 100644
index 0000000..fb3e67b
--- /dev/null
+++ b/newt/Godeps/_workspace/src/github.com/spf13/pflag/int_slice.go
@@ -0,0 +1,113 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// -- intSlice Value
+type intSliceValue []int
+
+func newIntSliceValue(val []int, p *[]int) *intSliceValue {
+	*p = val
+	return (*intSliceValue)(p)
+}
+
+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
+		}
+
+	}
+	*s = intSliceValue(out)
+	return nil
+}
+
+func (s *intSliceValue) Type() string {
+	return "intSlice"
+}
+
+func (s *intSliceValue) String() string {
+	out := make([]string, len(*s))
+	for i, d := range *s {
+		out[i] = fmt.Sprintf("%d", d)
+	}
+	return strings.Join(out, ",")
+}
+
+func intSliceConv(val string) (interface{}, 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 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)
+}
+
+// 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)
+}
+
+// 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 := make([]int, 0)
+	f.IntSliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// 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 := make([]int, 0)
+	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)
+}
+
+// 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)
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newt/blob/e95057f4/newt/Godeps/_workspace/src/github.com/spf13/pflag/int_slice_test.go
----------------------------------------------------------------------
diff --git a/newt/Godeps/_workspace/src/github.com/spf13/pflag/int_slice_test.go b/newt/Godeps/_workspace/src/github.com/spf13/pflag/int_slice_test.go
new file mode 100644
index 0000000..d162e86
--- /dev/null
+++ b/newt/Godeps/_workspace/src/github.com/spf13/pflag/int_slice_test.go
@@ -0,0 +1,49 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"testing"
+)
+
+func setUpISFlagSet(isp *[]int) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	f.IntSliceVar(isp, "is", []int{}, "Command seperated list!")
+	return f
+}
+
+func TestIS(t *testing.T) {
+	var is []int
+	f := setUpISFlagSet(&is)
+
+	vals := []string{"1", "2", "4", "3"}
+	arg := fmt.Sprintf("--is=%s", strings.Join(vals, ","))
+	err := f.Parse([]string{arg})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range is {
+		d, err := strconv.Atoi(vals[i])
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if d != v {
+			t.Fatalf("expected is[%d] to be %s but got: %d", i, vals[i], v)
+		}
+	}
+	getIS, err := f.GetIntSlice("is")
+	for i, v := range getIS {
+		d, err := strconv.Atoi(vals[i])
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if d != v {
+			t.Fatalf("expected is[%d] to be %s but got: %d from GetIntSlice", i, vals[i], v)
+		}
+	}
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newt/blob/e95057f4/newt/Godeps/_workspace/src/github.com/spf13/pflag/ip.go
----------------------------------------------------------------------
diff --git a/newt/Godeps/_workspace/src/github.com/spf13/pflag/ip.go b/newt/Godeps/_workspace/src/github.com/spf13/pflag/ip.go
new file mode 100644
index 0000000..746eefd
--- /dev/null
+++ b/newt/Godeps/_workspace/src/github.com/spf13/pflag/ip.go
@@ -0,0 +1,93 @@
+package pflag
+
+import (
+	"fmt"
+	"net"
+)
+
+// -- 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(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)
+}
+
+// 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)
+}
+
+// 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
+}
+
+// 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)
+}
+
+// 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)
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newt/blob/e95057f4/newt/Godeps/_workspace/src/github.com/spf13/pflag/ipmask.go
----------------------------------------------------------------------
diff --git a/newt/Godeps/_workspace/src/github.com/spf13/pflag/ipmask.go b/newt/Godeps/_workspace/src/github.com/spf13/pflag/ipmask.go
new file mode 100644
index 0000000..1b10efb
--- /dev/null
+++ b/newt/Godeps/_workspace/src/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"
+}
+
+// Parse IPv4 netmask 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)
+}
+
+// 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)
+}
+
+// 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
+}
+
+// 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)
+}
+
+// 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)
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newt/blob/e95057f4/newt/Godeps/_workspace/src/github.com/spf13/pflag/string.go
----------------------------------------------------------------------
diff --git a/newt/Godeps/_workspace/src/github.com/spf13/pflag/string.go b/newt/Godeps/_workspace/src/github.com/spf13/pflag/string.go
new file mode 100644
index 0000000..f89ea8b
--- /dev/null
+++ b/newt/Godeps/_workspace/src/github.com/spf13/pflag/string.go
@@ -0,0 +1,82 @@
+package pflag
+
+import "fmt"
+
+// -- 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 fmt.Sprintf("%s", *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)
+}
+
+// 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)
+}
+
+// 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
+}
+
+// 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)
+}
+
+// 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)
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newt/blob/e95057f4/newt/Godeps/_workspace/src/github.com/spf13/pflag/string_slice.go
----------------------------------------------------------------------
diff --git a/newt/Godeps/_workspace/src/github.com/spf13/pflag/string_slice.go b/newt/Godeps/_workspace/src/github.com/spf13/pflag/string_slice.go
new file mode 100644
index 0000000..bbe6e00
--- /dev/null
+++ b/newt/Godeps/_workspace/src/github.com/spf13/pflag/string_slice.go
@@ -0,0 +1,86 @@
+package pflag
+
+import (
+	"strings"
+)
+
+// -- stringSlice Value
+type stringSliceValue []string
+
+func newStringSliceValue(val []string, p *[]string) *stringSliceValue {
+	*p = val
+	return (*stringSliceValue)(p)
+}
+
+func (s *stringSliceValue) Set(val string) error {
+	v := strings.Split(val, ",")
+	*s = stringSliceValue(v)
+	return nil
+}
+func (s *stringSliceValue) Type() string {
+	return "stringSlice"
+}
+
+func (s *stringSliceValue) String() string { return strings.Join(*s, ",") }
+
+func stringSliceConv(sval string) (interface{}, error) {
+	v := strings.Split(sval, ",")
+	return v, nil
+}
+
+// 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)
+}
+
+// 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)
+}
+
+// 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 := make([]string, 0)
+	f.StringSliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// 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 := make([]string, 0)
+	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)
+}
+
+// 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)
+}