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Remove go-flags

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This commit is contained in:
Alexander Neumann 2016-09-17 11:17:28 +02:00
parent a257a613d7
commit 0fa12839a5
46 changed files with 0 additions and 9553 deletions
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6
vendor/manifest vendored
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@ -13,12 +13,6 @@
"revision": "cbb1ebac08e2ca5495a43f4ef5555e61a7ec7677", "revision": "cbb1ebac08e2ca5495a43f4ef5555e61a7ec7677",
"branch": "master" "branch": "master"
}, },
{
"importpath": "github.com/jessevdk/go-flags",
"repository": "https://github.com/jessevdk/go-flags",
"revision": "4cc2832a6e6d1d3b815e2b9d544b2a4dfb3ce8fa",
"branch": "master"
},
{ {
"importpath": "github.com/kr/fs", "importpath": "github.com/kr/fs",
"repository": "https://github.com/kr/fs", "repository": "https://github.com/kr/fs",

26
vendor/src/github.com/jessevdk/go-flags/LICENSE vendored
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@ -1,26 +0,0 @@
Copyright (c) 2012 Jesse van den Kieboom. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

135
vendor/src/github.com/jessevdk/go-flags/README.md vendored
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@ -1,135 +0,0 @@
go-flags: a go library for parsing command line arguments
=========================================================
[![GoDoc](https://godoc.org/github.com/jessevdk/go-flags?status.png)](https://godoc.org/github.com/jessevdk/go-flags) [![Build Status](https://travis-ci.org/jessevdk/go-flags.svg?branch=master)](https://travis-ci.org/jessevdk/go-flags) [![Coverage Status](https://img.shields.io/coveralls/jessevdk/go-flags.svg)](https://coveralls.io/r/jessevdk/go-flags?branch=master)
This library provides similar functionality to the builtin flag library of
go, but provides much more functionality and nicer formatting. From the
documentation:
Package flags provides an extensive command line option parser.
The flags package is similar in functionality to the go builtin flag package
but provides more options and uses reflection to provide a convenient and
succinct way of specifying command line options.
Supported features:
* Options with short names (-v)
* Options with long names (--verbose)
* Options with and without arguments (bool v.s. other type)
* Options with optional arguments and default values
* Multiple option groups each containing a set of options
* Generate and print well-formatted help message
* Passing remaining command line arguments after -- (optional)
* Ignoring unknown command line options (optional)
* Supports -I/usr/include -I=/usr/include -I /usr/include option argument specification
* Supports multiple short options -aux
* Supports all primitive go types (string, int{8..64}, uint{8..64}, float)
* Supports same option multiple times (can store in slice or last option counts)
* Supports maps
* Supports function callbacks
* Supports namespaces for (nested) option groups
The flags package uses structs, reflection and struct field tags
to allow users to specify command line options. This results in very simple
and concise specification of your application options. For example:
```go
type Options struct {
Verbose []bool `short:"v" long:"verbose" description:"Show verbose debug information"`
}
```
This specifies one option with a short name -v and a long name --verbose.
When either -v or --verbose is found on the command line, a 'true' value
will be appended to the Verbose field. e.g. when specifying -vvv, the
resulting value of Verbose will be {[true, true, true]}.
Example:
--------
```go
var opts struct {
// Slice of bool will append 'true' each time the option
// is encountered (can be set multiple times, like -vvv)
Verbose []bool `short:"v" long:"verbose" description:"Show verbose debug information"`
// Example of automatic marshalling to desired type (uint)
Offset uint `long:"offset" description:"Offset"`
// Example of a callback, called each time the option is found.
Call func(string) `short:"c" description:"Call phone number"`
// Example of a required flag
Name string `short:"n" long:"name" description:"A name" required:"true"`
// Example of a value name
File string `short:"f" long:"file" description:"A file" value-name:"FILE"`
// Example of a pointer
Ptr *int `short:"p" description:"A pointer to an integer"`
// Example of a slice of strings
StringSlice []string `short:"s" description:"A slice of strings"`
// Example of a slice of pointers
PtrSlice []*string `long:"ptrslice" description:"A slice of pointers to string"`
// Example of a map
IntMap map[string]int `long:"intmap" description:"A map from string to int"`
}
// Callback which will invoke callto:<argument> to call a number.
// Note that this works just on OS X (and probably only with
// Skype) but it shows the idea.
opts.Call = func(num string) {
cmd := exec.Command("open", "callto:"+num)
cmd.Start()
cmd.Process.Release()
}
// Make some fake arguments to parse.
args := []string{
"-vv",
"--offset=5",
"-n", "Me",
"-p", "3",
"-s", "hello",
"-s", "world",
"--ptrslice", "hello",
"--ptrslice", "world",
"--intmap", "a:1",
"--intmap", "b:5",
"arg1",
"arg2",
"arg3",
}
// Parse flags from `args'. Note that here we use flags.ParseArgs for
// the sake of making a working example. Normally, you would simply use
// flags.Parse(&opts) which uses os.Args
args, err := flags.ParseArgs(&opts, args)
if err != nil {
panic(err)
os.Exit(1)
}
fmt.Printf("Verbosity: %v\n", opts.Verbose)
fmt.Printf("Offset: %d\n", opts.Offset)
fmt.Printf("Name: %s\n", opts.Name)
fmt.Printf("Ptr: %d\n", *opts.Ptr)
fmt.Printf("StringSlice: %v\n", opts.StringSlice)
fmt.Printf("PtrSlice: [%v %v]\n", *opts.PtrSlice[0], *opts.PtrSlice[1])
fmt.Printf("IntMap: [a:%v b:%v]\n", opts.IntMap["a"], opts.IntMap["b"])
fmt.Printf("Remaining args: %s\n", strings.Join(args, " "))
// Output: Verbosity: [true true]
// Offset: 5
// Name: Me
// Ptr: 3
// StringSlice: [hello world]
// PtrSlice: [hello world]
// IntMap: [a:1 b:5]
// Remaining args: arg1 arg2 arg3
```
More information can be found in the godocs: <http://godoc.org/github.com/jessevdk/go-flags>

27
vendor/src/github.com/jessevdk/go-flags/arg.go vendored
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@ -1,27 +0,0 @@
package flags
import (
"reflect"
)
// Arg represents a positional argument on the command line.
type Arg struct {
// The name of the positional argument (used in the help)
Name string
// A description of the positional argument (used in the help)
Description string
// The minimal number of required positional arguments
Required int
// The maximum number of required positional arguments
RequiredMaximum int
value reflect.Value
tag multiTag
}
func (a *Arg) isRemaining() bool {
return a.value.Type().Kind() == reflect.Slice
}

163
vendor/src/github.com/jessevdk/go-flags/arg_test.go vendored
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@ -1,163 +0,0 @@
package flags
import (
"testing"
)
func TestPositional(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Positional struct {
Command int
Filename string
Rest []string
} `positional-args:"yes" required:"yes"`
}{}
p := NewParser(&opts, Default)
ret, err := p.ParseArgs([]string{"10", "arg_test.go", "a", "b"})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
return
}
if opts.Positional.Command != 10 {
t.Fatalf("Expected opts.Positional.Command to be 10, but got %v", opts.Positional.Command)
}
if opts.Positional.Filename != "arg_test.go" {
t.Fatalf("Expected opts.Positional.Filename to be \"arg_test.go\", but got %v", opts.Positional.Filename)
}
assertStringArray(t, opts.Positional.Rest, []string{"a", "b"})
assertStringArray(t, ret, []string{})
}
func TestPositionalRequired(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Positional struct {
Command int
Filename string
Rest []string
} `positional-args:"yes" required:"yes"`
}{}
p := NewParser(&opts, None)
_, err := p.ParseArgs([]string{"10"})
assertError(t, err, ErrRequired, "the required argument `Filename` was not provided")
}
func TestPositionalRequiredRest1Fail(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Positional struct {
Rest []string `required:"yes"`
} `positional-args:"yes"`
}{}
p := NewParser(&opts, None)
_, err := p.ParseArgs([]string{})
assertError(t, err, ErrRequired, "the required argument `Rest (at least 1 argument)` was not provided")
}
func TestPositionalRequiredRest1Pass(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Positional struct {
Rest []string `required:"yes"`
} `positional-args:"yes"`
}{}
p := NewParser(&opts, None)
_, err := p.ParseArgs([]string{"rest1"})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
return
}
if len(opts.Positional.Rest) != 1 {
t.Fatalf("Expected 1 positional rest argument")
}
assertString(t, opts.Positional.Rest[0], "rest1")
}
func TestPositionalRequiredRest2Fail(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Positional struct {
Rest []string `required:"2"`
} `positional-args:"yes"`
}{}
p := NewParser(&opts, None)
_, err := p.ParseArgs([]string{"rest1"})
assertError(t, err, ErrRequired, "the required argument `Rest (at least 2 arguments, but got only 1)` was not provided")
}
func TestPositionalRequiredRest2Pass(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Positional struct {
Rest []string `required:"2"`
} `positional-args:"yes"`
}{}
p := NewParser(&opts, None)
_, err := p.ParseArgs([]string{"rest1", "rest2", "rest3"})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
return
}
if len(opts.Positional.Rest) != 3 {
t.Fatalf("Expected 3 positional rest argument")
}
assertString(t, opts.Positional.Rest[0], "rest1")
assertString(t, opts.Positional.Rest[1], "rest2")
assertString(t, opts.Positional.Rest[2], "rest3")
}
func TestPositionalRequiredRestRangeFail(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Positional struct {
Rest []string `required:"1-2"`
} `positional-args:"yes"`
}{}
p := NewParser(&opts, None)
_, err := p.ParseArgs([]string{"rest1", "rest2", "rest3"})
assertError(t, err, ErrRequired, "the required argument `Rest (at most 2 arguments, but got 3)` was not provided")
}
func TestPositionalRequiredRestRangeEmptyFail(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Positional struct {
Rest []string `required:"0-0"`
} `positional-args:"yes"`
}{}
p := NewParser(&opts, None)
_, err := p.ParseArgs([]string{"some", "thing"})
assertError(t, err, ErrRequired, "the required argument `Rest (zero arguments)` was not provided")
}

177
vendor/src/github.com/jessevdk/go-flags/assert_test.go vendored
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@ -1,177 +0,0 @@
package flags
import (
"fmt"
"io"
"io/ioutil"
"os"
"os/exec"
"path"
"runtime"
"testing"
)
func assertCallerInfo() (string, int) {
ptr := make([]uintptr, 15)
n := runtime.Callers(1, ptr)
if n == 0 {
return "", 0
}
mef := runtime.FuncForPC(ptr[0])
mefile, meline := mef.FileLine(ptr[0])
for i := 2; i < n; i++ {
f := runtime.FuncForPC(ptr[i])
file, line := f.FileLine(ptr[i])
if file != mefile {
return file, line
}
}
return mefile, meline
}
func assertErrorf(t *testing.T, format string, args ...interface{}) {
msg := fmt.Sprintf(format, args...)
file, line := assertCallerInfo()
t.Errorf("%s:%d: %s", path.Base(file), line, msg)
}
func assertFatalf(t *testing.T, format string, args ...interface{}) {
msg := fmt.Sprintf(format, args...)
file, line := assertCallerInfo()
t.Fatalf("%s:%d: %s", path.Base(file), line, msg)
}
func assertString(t *testing.T, a string, b string) {
if a != b {
assertErrorf(t, "Expected %#v, but got %#v", b, a)
}
}
func assertStringArray(t *testing.T, a []string, b []string) {
if len(a) != len(b) {
assertErrorf(t, "Expected %#v, but got %#v", b, a)
return
}
for i, v := range a {
if b[i] != v {
assertErrorf(t, "Expected %#v, but got %#v", b, a)
return
}
}
}
func assertBoolArray(t *testing.T, a []bool, b []bool) {
if len(a) != len(b) {
assertErrorf(t, "Expected %#v, but got %#v", b, a)
return
}
for i, v := range a {
if b[i] != v {
assertErrorf(t, "Expected %#v, but got %#v", b, a)
return
}
}
}
func assertParserSuccess(t *testing.T, data interface{}, args ...string) (*Parser, []string) {
parser := NewParser(data, Default&^PrintErrors)
ret, err := parser.ParseArgs(args)
if err != nil {
t.Fatalf("Unexpected parse error: %s", err)
return nil, nil
}
return parser, ret
}
func assertParseSuccess(t *testing.T, data interface{}, args ...string) []string {
_, ret := assertParserSuccess(t, data, args...)
return ret
}
func assertError(t *testing.T, err error, typ ErrorType, msg string) {
if err == nil {
assertFatalf(t, "Expected error: %s", msg)
return
}
if e, ok := err.(*Error); !ok {
assertFatalf(t, "Expected Error type, but got %#v", err)
} else {
if e.Type != typ {
assertErrorf(t, "Expected error type {%s}, but got {%s}", typ, e.Type)
}
if e.Message != msg {
assertErrorf(t, "Expected error message %#v, but got %#v", msg, e.Message)
}
}
}
func assertParseFail(t *testing.T, typ ErrorType, msg string, data interface{}, args ...string) []string {
parser := NewParser(data, Default&^PrintErrors)
ret, err := parser.ParseArgs(args)
assertError(t, err, typ, msg)
return ret
}
func diff(a, b string) (string, error) {
atmp, err := ioutil.TempFile("", "help-diff")
if err != nil {
return "", err
}
btmp, err := ioutil.TempFile("", "help-diff")
if err != nil {
return "", err
}
if _, err := io.WriteString(atmp, a); err != nil {
return "", err
}
if _, err := io.WriteString(btmp, b); err != nil {
return "", err
}
ret, err := exec.Command("diff", "-u", "-d", "--label", "got", atmp.Name(), "--label", "expected", btmp.Name()).Output()
os.Remove(atmp.Name())
os.Remove(btmp.Name())
if err.Error() == "exit status 1" {
return string(ret), nil
}
return string(ret), err
}
func assertDiff(t *testing.T, actual, expected, msg string) {
if actual == expected {
return
}
ret, err := diff(actual, expected)
if err != nil {
assertErrorf(t, "Unexpected diff error: %s", err)
assertErrorf(t, "Unexpected %s, expected:\n\n%s\n\nbut got\n\n%s", msg, expected, actual)
} else {
assertErrorf(t, "Unexpected %s:\n\n%s", msg, ret)
}
}

16
vendor/src/github.com/jessevdk/go-flags/check_crosscompile.sh vendored
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@ -1,16 +0,0 @@
#!/bin/bash
set -e
echo '# linux arm7'
GOARM=7 GOARCH=arm GOOS=linux go build
echo '# linux arm5'
GOARM=5 GOARCH=arm GOOS=linux go build
echo '# windows 386'
GOARCH=386 GOOS=windows go build
echo '# windows amd64'
GOARCH=amd64 GOOS=windows go build
echo '# darwin'
GOARCH=amd64 GOOS=darwin go build
echo '# freebsd'
GOARCH=amd64 GOOS=freebsd go build

59
vendor/src/github.com/jessevdk/go-flags/closest.go vendored
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@ -1,59 +0,0 @@
package flags
func levenshtein(s string, t string) int {
if len(s) == 0 {
return len(t)
}
if len(t) == 0 {
return len(s)
}
dists := make([][]int, len(s)+1)
for i := range dists {
dists[i] = make([]int, len(t)+1)
dists[i][0] = i
}
for j := range t {
dists[0][j] = j
}
for i, sc := range s {
for j, tc := range t {
if sc == tc {
dists[i+1][j+1] = dists[i][j]
} else {
dists[i+1][j+1] = dists[i][j] + 1
if dists[i+1][j] < dists[i+1][j+1] {
dists[i+1][j+1] = dists[i+1][j] + 1
}
if dists[i][j+1] < dists[i+1][j+1] {
dists[i+1][j+1] = dists[i][j+1] + 1
}
}
}
}
return dists[len(s)][len(t)]
}
func closestChoice(cmd string, choices []string) (string, int) {
if len(choices) == 0 {
return "", 0
}
mincmd := -1
mindist := -1
for i, c := range choices {
l := levenshtein(cmd, c)
if mincmd < 0 || l < mindist {
mindist = l
mincmd = i
}
}
return choices[mincmd], mindist
}

455
vendor/src/github.com/jessevdk/go-flags/command.go vendored
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@ -1,455 +0,0 @@
package flags
import (
"reflect"
"sort"
"strconv"
"strings"
"unsafe"
)
// Command represents an application command. Commands can be added to the
// parser (which itself is a command) and are selected/executed when its name
// is specified on the command line. The Command type embeds a Group and
// therefore also carries a set of command specific options.
type Command struct {
// Embedded, see Group for more information
*Group
// The name by which the command can be invoked
Name string
// The active sub command (set by parsing) or nil
Active *Command
// Whether subcommands are optional
SubcommandsOptional bool
// Aliases for the command
Aliases []string
// Whether positional arguments are required
ArgsRequired bool
commands []*Command
hasBuiltinHelpGroup bool
args []*Arg
}
// Commander is an interface which can be implemented by any command added in
// the options. When implemented, the Execute method will be called for the last
// specified (sub)command providing the remaining command line arguments.
type Commander interface {
// Execute will be called for the last active (sub)command. The
// args argument contains the remaining command line arguments. The
// error that Execute returns will be eventually passed out of the
// Parse method of the Parser.
Execute(args []string) error
}
// Usage is an interface which can be implemented to show a custom usage string
// in the help message shown for a command.
type Usage interface {
// Usage is called for commands to allow customized printing of command
// usage in the generated help message.
Usage() string
}
type lookup struct {
shortNames map[string]*Option
longNames map[string]*Option
commands map[string]*Command
}
// AddCommand adds a new command to the parser with the given name and data. The
// data needs to be a pointer to a struct from which the fields indicate which
// options are in the command. The provided data can implement the Command and
// Usage interfaces.
func (c *Command) AddCommand(command string, shortDescription string, longDescription string, data interface{}) (*Command, error) {
cmd := newCommand(command, shortDescription, longDescription, data)
cmd.parent = c
if err := cmd.scan(); err != nil {
return nil, err
}
c.commands = append(c.commands, cmd)
return cmd, nil
}
// AddGroup adds a new group to the command with the given name and data. The
// data needs to be a pointer to a struct from which the fields indicate which
// options are in the group.
func (c *Command) AddGroup(shortDescription string, longDescription string, data interface{}) (*Group, error) {
group := newGroup(shortDescription, longDescription, data)
group.parent = c
if err := group.scanType(c.scanSubcommandHandler(group)); err != nil {
return nil, err
}
c.groups = append(c.groups, group)
return group, nil
}
// Commands returns a list of subcommands of this command.
func (c *Command) Commands() []*Command {
return c.commands
}
// Find locates the subcommand with the given name and returns it. If no such
// command can be found Find will return nil.
func (c *Command) Find(name string) *Command {
for _, cc := range c.commands {
if cc.match(name) {
return cc
}
}
return nil
}
// FindOptionByLongName finds an option that is part of the command, or any of
// its parent commands, by matching its long name (including the option
// namespace).
func (c *Command) FindOptionByLongName(longName string) (option *Option) {
for option == nil && c != nil {
option = c.Group.FindOptionByLongName(longName)
c, _ = c.parent.(*Command)
}
return option
}
// FindOptionByShortName finds an option that is part of the command, or any of
// its parent commands, by matching its long name (including the option
// namespace).
func (c *Command) FindOptionByShortName(shortName rune) (option *Option) {
for option == nil && c != nil {
option = c.Group.FindOptionByShortName(shortName)
c, _ = c.parent.(*Command)
}
return option
}
// Args returns a list of positional arguments associated with this command.
func (c *Command) Args() []*Arg {
ret := make([]*Arg, len(c.args))
copy(ret, c.args)
return ret
}
func newCommand(name string, shortDescription string, longDescription string, data interface{}) *Command {
return &Command{
Group: newGroup(shortDescription, longDescription, data),
Name: name,
}
}
func (c *Command) scanSubcommandHandler(parentg *Group) scanHandler {
f := func(realval reflect.Value, sfield *reflect.StructField) (bool, error) {
mtag := newMultiTag(string(sfield.Tag))
if err := mtag.Parse(); err != nil {
return true, err
}
positional := mtag.Get("positional-args")
if len(positional) != 0 {
stype := realval.Type()
for i := 0; i < stype.NumField(); i++ {
field := stype.Field(i)
m := newMultiTag((string(field.Tag)))
if err := m.Parse(); err != nil {
return true, err
}
name := m.Get("positional-arg-name")
if len(name) == 0 {
name = field.Name
}
required := -1
requiredMaximum := -1
sreq := m.Get("required")
if sreq != "" {
required = 1
rng := strings.SplitN(sreq, "-", 2)
if len(rng) > 1 {
if preq, err := strconv.ParseInt(rng[0], 10, 32); err == nil {
required = int(preq)
}
if preq, err := strconv.ParseInt(rng[1], 10, 32); err == nil {
requiredMaximum = int(preq)
}
} else {
if preq, err := strconv.ParseInt(sreq, 10, 32); err == nil {
required = int(preq)
}
}
}
arg := &Arg{
Name: name,
Description: m.Get("description"),
Required: required,
RequiredMaximum: requiredMaximum,
value: realval.Field(i),
tag: m,
}
c.args = append(c.args, arg)
if len(mtag.Get("required")) != 0 {
c.ArgsRequired = true
}
}
return true, nil
}
subcommand := mtag.Get("command")
if len(subcommand) != 0 {
ptrval := reflect.NewAt(realval.Type(), unsafe.Pointer(realval.UnsafeAddr()))
shortDescription := mtag.Get("description")
longDescription := mtag.Get("long-description")
subcommandsOptional := mtag.Get("subcommands-optional")
aliases := mtag.GetMany("alias")
subc, err := c.AddCommand(subcommand, shortDescription, longDescription, ptrval.Interface())
if err != nil {
return true, err
}
subc.Hidden = mtag.Get("hidden") != ""
if len(subcommandsOptional) > 0 {
subc.SubcommandsOptional = true
}
if len(aliases) > 0 {
subc.Aliases = aliases
}
return true, nil
}
return parentg.scanSubGroupHandler(realval, sfield)
}
return f
}
func (c *Command) scan() error {
return c.scanType(c.scanSubcommandHandler(c.Group))
}
func (c *Command) eachOption(f func(*Command, *Group, *Option)) {
c.eachCommand(func(c *Command) {
c.eachGroup(func(g *Group) {
for _, option := range g.options {
f(c, g, option)
}
})
}, true)
}
func (c *Command) eachCommand(f func(*Command), recurse bool) {
f(c)
for _, cc := range c.commands {
if recurse {
cc.eachCommand(f, true)
} else {
f(cc)
}
}
}
func (c *Command) eachActiveGroup(f func(cc *Command, g *Group)) {
c.eachGroup(func(g *Group) {
f(c, g)
})
if c.Active != nil {
c.Active.eachActiveGroup(f)
}
}
func (c *Command) addHelpGroups(showHelp func() error) {
if !c.hasBuiltinHelpGroup {
c.addHelpGroup(showHelp)
c.hasBuiltinHelpGroup = true
}
for _, cc := range c.commands {
cc.addHelpGroups(showHelp)
}
}
func (c *Command) makeLookup() lookup {
ret := lookup{
shortNames: make(map[string]*Option),
longNames: make(map[string]*Option),
commands: make(map[string]*Command),
}
parent := c.parent
var parents []*Command
for parent != nil {
if cmd, ok := parent.(*Command); ok {
parents = append(parents, cmd)
parent = cmd.parent
} else {
parent = nil
}
}
for i := len(parents) - 1; i >= 0; i-- {
parents[i].fillLookup(&ret, true)
}
c.fillLookup(&ret, false)
return ret
}
func (c *Command) fillLookup(ret *lookup, onlyOptions bool) {
c.eachGroup(func(g *Group) {
for _, option := range g.options {
if option.ShortName != 0 {
ret.shortNames[string(option.ShortName)] = option
}
if len(option.LongName) > 0 {
ret.longNames[option.LongNameWithNamespace()] = option
}
}
})
if onlyOptions {
return
}
for _, subcommand := range c.commands {
ret.commands[subcommand.Name] = subcommand
for _, a := range subcommand.Aliases {
ret.commands[a] = subcommand
}
}
}
func (c *Command) groupByName(name string) *Group {
if grp := c.Group.groupByName(name); grp != nil {
return grp
}
for _, subc := range c.commands {
prefix := subc.Name + "."
if strings.HasPrefix(name, prefix) {
if grp := subc.groupByName(name[len(prefix):]); grp != nil {
return grp
}
} else if name == subc.Name {
return subc.Group
}
}
return nil
}
type commandList []*Command
func (c commandList) Less(i, j int) bool {
return c[i].Name < c[j].Name
}
func (c commandList) Len() int {
return len(c)
}
func (c commandList) Swap(i, j int) {
c[i], c[j] = c[j], c[i]
}
func (c *Command) sortedVisibleCommands() []*Command {
ret := commandList(c.visibleCommands())
sort.Sort(ret)
return []*Command(ret)
}
func (c *Command) visibleCommands() []*Command {
ret := make([]*Command, 0, len(c.commands))
for _, cmd := range c.commands {
if !cmd.Hidden {
ret = append(ret, cmd)
}
}
return ret
}
func (c *Command) match(name string) bool {
if c.Name == name {
return true
}
for _, v := range c.Aliases {
if v == name {
return true
}
}
return false
}
func (c *Command) hasCliOptions() bool {
ret := false
c.eachGroup(func(g *Group) {
if g.isBuiltinHelp {
return
}
for _, opt := range g.options {
if opt.canCli() {
ret = true
}
}
})
return ret
}
func (c *Command) fillParseState(s *parseState) {
s.positional = make([]*Arg, len(c.args))
copy(s.positional, c.args)
s.lookup = c.makeLookup()
s.command = c
}

582
vendor/src/github.com/jessevdk/go-flags/command_test.go vendored
View file

@ -1,582 +0,0 @@
package flags
import (
"fmt"
"testing"
)
func TestCommandInline(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Command struct {
G bool `short:"g"`
} `command:"cmd"`
}{}
p, ret := assertParserSuccess(t, &opts, "-v", "cmd", "-g")
assertStringArray(t, ret, []string{})
if p.Active == nil {
t.Errorf("Expected active command")
}
if !opts.Value {
t.Errorf("Expected Value to be true")
}
if !opts.Command.G {
t.Errorf("Expected Command.G to be true")
}
if p.Command.Find("cmd") != p.Active {
t.Errorf("Expected to find command `cmd' to be active")
}
}
func TestCommandInlineMulti(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
C1 struct {
} `command:"c1"`
C2 struct {
G bool `short:"g"`
} `command:"c2"`
}{}
p, ret := assertParserSuccess(t, &opts, "-v", "c2", "-g")
assertStringArray(t, ret, []string{})
if p.Active == nil {
t.Errorf("Expected active command")
}
if !opts.Value {
t.Errorf("Expected Value to be true")
}
if !opts.C2.G {
t.Errorf("Expected C2.G to be true")
}
if p.Command.Find("c1") == nil {
t.Errorf("Expected to find command `c1'")
}
if c2 := p.Command.Find("c2"); c2 == nil {
t.Errorf("Expected to find command `c2'")
} else if c2 != p.Active {
t.Errorf("Expected to find command `c2' to be active")
}
}
func TestCommandFlagOrder1(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Command struct {
G bool `short:"g"`
} `command:"cmd"`
}{}
assertParseFail(t, ErrUnknownFlag, "unknown flag `g'", &opts, "-v", "-g", "cmd")
}
func TestCommandFlagOrder2(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Command struct {
G bool `short:"g"`
} `command:"cmd"`
}{}
assertParseSuccess(t, &opts, "cmd", "-v", "-g")
if !opts.Value {
t.Errorf("Expected Value to be true")
}
if !opts.Command.G {
t.Errorf("Expected Command.G to be true")
}
}
func TestCommandFlagOrderSub(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Command struct {
G bool `short:"g"`
SubCommand struct {
B bool `short:"b"`
} `command:"sub"`
} `command:"cmd"`
}{}
assertParseSuccess(t, &opts, "cmd", "sub", "-v", "-g", "-b")
if !opts.Value {
t.Errorf("Expected Value to be true")
}
if !opts.Command.G {
t.Errorf("Expected Command.G to be true")
}
if !opts.Command.SubCommand.B {
t.Errorf("Expected Command.SubCommand.B to be true")
}
}
func TestCommandFlagOverride1(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Command struct {
Value bool `short:"v"`
} `command:"cmd"`
}{}
assertParseSuccess(t, &opts, "-v", "cmd")
if !opts.Value {
t.Errorf("Expected Value to be true")
}
if opts.Command.Value {
t.Errorf("Expected Command.Value to be false")
}
}
func TestCommandFlagOverride2(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Command struct {
Value bool `short:"v"`
} `command:"cmd"`
}{}
assertParseSuccess(t, &opts, "cmd", "-v")
if opts.Value {
t.Errorf("Expected Value to be false")
}
if !opts.Command.Value {
t.Errorf("Expected Command.Value to be true")
}
}
func TestCommandFlagOverrideSub(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Command struct {
Value bool `short:"v"`
SubCommand struct {
Value bool `short:"v"`
} `command:"sub"`
} `command:"cmd"`
}{}
assertParseSuccess(t, &opts, "cmd", "sub", "-v")
if opts.Value {
t.Errorf("Expected Value to be false")
}
if opts.Command.Value {
t.Errorf("Expected Command.Value to be false")
}
if !opts.Command.SubCommand.Value {
t.Errorf("Expected Command.Value to be true")
}
}
func TestCommandFlagOverrideSub2(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Command struct {
Value bool `short:"v"`
SubCommand struct {
G bool `short:"g"`
} `command:"sub"`
} `command:"cmd"`
}{}
assertParseSuccess(t, &opts, "cmd", "sub", "-v")
if opts.Value {
t.Errorf("Expected Value to be false")
}
if !opts.Command.Value {
t.Errorf("Expected Command.Value to be true")
}
}
func TestCommandEstimate(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Cmd1 struct {
} `command:"remove"`
Cmd2 struct {
} `command:"add"`
}{}
p := NewParser(&opts, None)
_, err := p.ParseArgs([]string{})
assertError(t, err, ErrCommandRequired, "Please specify one command of: add or remove")
}
func TestCommandEstimate2(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Cmd1 struct {
} `command:"remove"`
Cmd2 struct {
} `command:"add"`
}{}
p := NewParser(&opts, None)
_, err := p.ParseArgs([]string{"rmive"})
assertError(t, err, ErrUnknownCommand, "Unknown command `rmive', did you mean `remove'?")
}
type testCommand struct {
G bool `short:"g"`
Executed bool
EArgs []string
}
func (c *testCommand) Execute(args []string) error {
c.Executed = true
c.EArgs = args
return nil
}
func TestCommandExecute(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Command testCommand `command:"cmd"`
}{}
assertParseSuccess(t, &opts, "-v", "cmd", "-g", "a", "b")
if !opts.Value {
t.Errorf("Expected Value to be true")
}
if !opts.Command.Executed {
t.Errorf("Did not execute command")
}
if !opts.Command.G {
t.Errorf("Expected Command.C to be true")
}
assertStringArray(t, opts.Command.EArgs, []string{"a", "b"})
}
func TestCommandClosest(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Cmd1 struct {
} `command:"remove"`
Cmd2 struct {
} `command:"add"`
}{}
args := assertParseFail(t, ErrUnknownCommand, "Unknown command `addd', did you mean `add'?", &opts, "-v", "addd")
assertStringArray(t, args, []string{"addd"})
}
func TestCommandAdd(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
}{}
var cmd = struct {
G bool `short:"g"`
}{}
p := NewParser(&opts, Default)
c, err := p.AddCommand("cmd", "", "", &cmd)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
return
}
ret, err := p.ParseArgs([]string{"-v", "cmd", "-g", "rest"})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
return
}
assertStringArray(t, ret, []string{"rest"})
if !opts.Value {
t.Errorf("Expected Value to be true")
}
if !cmd.G {
t.Errorf("Expected Command.G to be true")
}
if p.Command.Find("cmd") != c {
t.Errorf("Expected to find command `cmd'")
}
if p.Commands()[0] != c {
t.Errorf("Expected command %#v, but got %#v", c, p.Commands()[0])
}
if c.Options()[0].ShortName != 'g' {
t.Errorf("Expected short name `g' but got %v", c.Options()[0].ShortName)
}
}
func TestCommandNestedInline(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Command struct {
G bool `short:"g"`
Nested struct {
N string `long:"n"`
} `command:"nested"`
} `command:"cmd"`
}{}
p, ret := assertParserSuccess(t, &opts, "-v", "cmd", "-g", "nested", "--n", "n", "rest")
assertStringArray(t, ret, []string{"rest"})
if !opts.Value {
t.Errorf("Expected Value to be true")
}
if !opts.Command.G {
t.Errorf("Expected Command.G to be true")
}
assertString(t, opts.Command.Nested.N, "n")
if c := p.Command.Find("cmd"); c == nil {
t.Errorf("Expected to find command `cmd'")
} else {
if c != p.Active {
t.Errorf("Expected `cmd' to be the active parser command")
}
if nested := c.Find("nested"); nested == nil {
t.Errorf("Expected to find command `nested'")
} else if nested != c.Active {
t.Errorf("Expected to find command `nested' to be the active `cmd' command")
}
}
}
func TestRequiredOnCommand(t *testing.T) {
var opts = struct {
Value bool `short:"v" required:"true"`
Command struct {
G bool `short:"g"`
} `command:"cmd"`
}{}
assertParseFail(t, ErrRequired, fmt.Sprintf("the required flag `%cv' was not specified", defaultShortOptDelimiter), &opts, "cmd")
}
func TestRequiredAllOnCommand(t *testing.T) {
var opts = struct {
Value bool `short:"v" required:"true"`
Missing bool `long:"missing" required:"true"`
Command struct {
G bool `short:"g"`
} `command:"cmd"`
}{}
assertParseFail(t, ErrRequired, fmt.Sprintf("the required flags `%smissing' and `%cv' were not specified", defaultLongOptDelimiter, defaultShortOptDelimiter), &opts, "cmd")
}
func TestDefaultOnCommand(t *testing.T) {
var opts = struct {
Command struct {
G string `short:"g" default:"value"`
} `command:"cmd"`
}{}
assertParseSuccess(t, &opts, "cmd")
if opts.Command.G != "value" {
t.Errorf("Expected G to be \"value\"")
}
}
func TestAfterNonCommand(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Cmd1 struct {
} `command:"remove"`
Cmd2 struct {
} `command:"add"`
}{}
assertParseFail(t, ErrUnknownCommand, "Unknown command `nocmd'. Please specify one command of: add or remove", &opts, "nocmd", "remove")
}
func TestSubcommandsOptional(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Cmd1 struct {
} `command:"remove"`
Cmd2 struct {
} `command:"add"`
}{}
p := NewParser(&opts, None)
p.SubcommandsOptional = true
_, err := p.ParseArgs([]string{"-v"})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
return
}
if !opts.Value {
t.Errorf("Expected Value to be true")
}
}
func TestSubcommandsOptionalAfterNonCommand(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Cmd1 struct {
} `command:"remove"`
Cmd2 struct {
} `command:"add"`
}{}
p := NewParser(&opts, None)
p.SubcommandsOptional = true
retargs, err := p.ParseArgs([]string{"nocmd", "remove"})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
return
}
assertStringArray(t, retargs, []string{"nocmd", "remove"})
}
func TestCommandAlias(t *testing.T) {
var opts = struct {
Command struct {
G string `short:"g" default:"value"`
} `command:"cmd" alias:"cm"`
}{}
assertParseSuccess(t, &opts, "cm")
if opts.Command.G != "value" {
t.Errorf("Expected G to be \"value\"")
}
}
func TestSubCommandFindOptionByLongFlag(t *testing.T) {
var opts struct {
Testing bool `long:"testing" description:"Testing"`
}
var cmd struct {
Other bool `long:"other" description:"Other"`
}
p := NewParser(&opts, Default)
c, _ := p.AddCommand("command", "Short", "Long", &cmd)
opt := c.FindOptionByLongName("other")
if opt == nil {
t.Errorf("Expected option, but found none")
}
assertString(t, opt.LongName, "other")
opt = c.FindOptionByLongName("testing")
if opt == nil {
t.Errorf("Expected option, but found none")
}
assertString(t, opt.LongName, "testing")
}
func TestSubCommandFindOptionByShortFlag(t *testing.T) {
var opts struct {
Testing bool `short:"t" description:"Testing"`
}
var cmd struct {
Other bool `short:"o" description:"Other"`
}
p := NewParser(&opts, Default)
c, _ := p.AddCommand("command", "Short", "Long", &cmd)
opt := c.FindOptionByShortName('o')
if opt == nil {
t.Errorf("Expected option, but found none")
}
if opt.ShortName != 'o' {
t.Errorf("Expected 'o', but got %v", opt.ShortName)
}
opt = c.FindOptionByShortName('t')
if opt == nil {
t.Errorf("Expected option, but found none")
}
if opt.ShortName != 't' {
t.Errorf("Expected 'o', but got %v", opt.ShortName)
}
}

300
vendor/src/github.com/jessevdk/go-flags/completion.go vendored
View file

@ -1,300 +0,0 @@
package flags
import (
"fmt"
"path/filepath"
"reflect"
"sort"
"strings"
"unicode/utf8"
)
// Completion is a type containing information of a completion.
type Completion struct {
// The completed item
Item string
// A description of the completed item (optional)
Description string
}
type completions []Completion
func (c completions) Len() int {
return len(c)
}
func (c completions) Less(i, j int) bool {
return c[i].Item < c[j].Item
}
func (c completions) Swap(i, j int) {
c[i], c[j] = c[j], c[i]
}
// Completer is an interface which can be implemented by types
// to provide custom command line argument completion.
type Completer interface {
// Complete receives a prefix representing a (partial) value
// for its type and should provide a list of possible valid
// completions.
Complete(match string) []Completion
}
type completion struct {
parser *Parser
}
// Filename is a string alias which provides filename completion.
type Filename string
func completionsWithoutDescriptions(items []string) []Completion {
ret := make([]Completion, len(items))
for i, v := range items {
ret[i].Item = v
}
return ret
}
// Complete returns a list of existing files with the given
// prefix.
func (f *Filename) Complete(match string) []Completion {
ret, _ := filepath.Glob(match + "*")
return completionsWithoutDescriptions(ret)
}
func (c *completion) skipPositional(s *parseState, n int) {
if n >= len(s.positional) {
s.positional = nil
} else {
s.positional = s.positional[n:]
}
}
func (c *completion) completeOptionNames(names map[string]*Option, prefix string, match string) []Completion {
n := make([]Completion, 0, len(names))
for k, opt := range names {
if strings.HasPrefix(k, match) && !opt.Hidden {
n = append(n, Completion{
Item: prefix + k,
Description: opt.Description,
})
}
}
return n
}
func (c *completion) completeLongNames(s *parseState, prefix string, match string) []Completion {
return c.completeOptionNames(s.lookup.longNames, prefix, match)
}
func (c *completion) completeShortNames(s *parseState, prefix string, match string) []Completion {
if len(match) != 0 {
return []Completion{
Completion{
Item: prefix + match,
},
}
}
return c.completeOptionNames(s.lookup.shortNames, prefix, match)
}
func (c *completion) completeCommands(s *parseState, match string) []Completion {
n := make([]Completion, 0, len(s.command.commands))
for _, cmd := range s.command.commands {
if cmd.data != c && strings.HasPrefix(cmd.Name, match) {
n = append(n, Completion{
Item: cmd.Name,
Description: cmd.ShortDescription,
})
}
}
return n
}
func (c *completion) completeValue(value reflect.Value, prefix string, match string) []Completion {
i := value.Interface()
var ret []Completion
if cmp, ok := i.(Completer); ok {
ret = cmp.Complete(match)
} else if value.CanAddr() {
if cmp, ok = value.Addr().Interface().(Completer); ok {
ret = cmp.Complete(match)
}
}
for i, v := range ret {
ret[i].Item = prefix + v.Item
}
return ret
}
func (c *completion) completeArg(arg *Arg, prefix string, match string) []Completion {
if arg.isRemaining() {
// For remaining positional args (that are parsed into a slice), complete
// based on the element type.
return c.completeValue(reflect.New(arg.value.Type().Elem()), prefix, match)
}
return c.completeValue(arg.value, prefix, match)
}
func (c *completion) complete(args []string) []Completion {
if len(args) == 0 {
args = []string{""}
}
s := &parseState{
args: args,
}
c.parser.fillParseState(s)
var opt *Option
for len(s.args) > 1 {
arg := s.pop()
if (c.parser.Options&PassDoubleDash) != None && arg == "--" {
opt = nil
c.skipPositional(s, len(s.args)-1)
break
}
if argumentIsOption(arg) {
prefix, optname, islong := stripOptionPrefix(arg)
optname, _, argument := splitOption(prefix, optname, islong)
if argument == nil {
var o *Option
canarg := true
if islong {
o = s.lookup.longNames[optname]
} else {
for i, r := range optname {
sname := string(r)
o = s.lookup.shortNames[sname]
if o == nil {
break
}
if i == 0 && o.canArgument() && len(optname) != len(sname) {
canarg = false
break
}
}
}
if o == nil && (c.parser.Options&PassAfterNonOption) != None {
opt = nil
c.skipPositional(s, len(s.args)-1)
break
} else if o != nil && o.canArgument() && !o.OptionalArgument && canarg {
if len(s.args) > 1 {
s.pop()
} else {
opt = o
}
}
}
} else {
if len(s.positional) > 0 {
if !s.positional[0].isRemaining() {
// Don't advance beyond a remaining positional arg (because
// it consumes all subsequent args).
s.positional = s.positional[1:]
}
} else if cmd, ok := s.lookup.commands[arg]; ok {
cmd.fillParseState(s)
}
opt = nil
}
}
lastarg := s.args[len(s.args)-1]
var ret []Completion
if opt != nil {
// Completion for the argument of 'opt'
ret = c.completeValue(opt.value, "", lastarg)
} else if argumentStartsOption(lastarg) {
// Complete the option
prefix, optname, islong := stripOptionPrefix(lastarg)
optname, split, argument := splitOption(prefix, optname, islong)
if argument == nil && !islong {
rname, n := utf8.DecodeRuneInString(optname)
sname := string(rname)
if opt := s.lookup.shortNames[sname]; opt != nil && opt.canArgument() {
ret = c.completeValue(opt.value, prefix+sname, optname[n:])
} else {
ret = c.completeShortNames(s, prefix, optname)
}
} else if argument != nil {
if islong {
opt = s.lookup.longNames[optname]
} else {
opt = s.lookup.shortNames[optname]
}
if opt != nil {
ret = c.completeValue(opt.value, prefix+optname+split, *argument)
}
} else if islong {
ret = c.completeLongNames(s, prefix, optname)
} else {
ret = c.completeShortNames(s, prefix, optname)
}
} else if len(s.positional) > 0 {
// Complete for positional argument
ret = c.completeArg(s.positional[0], "", lastarg)
} else if len(s.command.commands) > 0 {
// Complete for command
ret = c.completeCommands(s, lastarg)
}
sort.Sort(completions(ret))
return ret
}
func (c *completion) print(items []Completion, showDescriptions bool) {
if showDescriptions && len(items) > 1 {
maxl := 0
for _, v := range items {
if len(v.Item) > maxl {
maxl = len(v.Item)
}
}
for _, v := range items {
fmt.Printf("%s", v.Item)
if len(v.Description) > 0 {
fmt.Printf("%s # %s", strings.Repeat(" ", maxl-len(v.Item)), v.Description)
}
fmt.Printf("\n")
}
} else {
for _, v := range items {
fmt.Println(v.Item)
}
}
}

295
vendor/src/github.com/jessevdk/go-flags/completion_test.go vendored
View file

@ -1,295 +0,0 @@
package flags
import (
"bytes"
"io"
"os"
"path"
"path/filepath"
"reflect"
"runtime"
"strings"
"testing"
)
type TestComplete struct {
}
func (t *TestComplete) Complete(match string) []Completion {
options := []string{
"hello world",
"hello universe",
"hello multiverse",
}
ret := make([]Completion, 0, len(options))
for _, o := range options {
if strings.HasPrefix(o, match) {
ret = append(ret, Completion{
Item: o,
})
}
}
return ret
}
var completionTestOptions struct {
Verbose bool `short:"v" long:"verbose" description:"Verbose messages"`
Debug bool `short:"d" long:"debug" description:"Enable debug"`
Version bool `long:"version" description:"Show version"`
Required bool `long:"required" required:"true" description:"This is required"`
Hidden bool `long:"hidden" hidden:"true" description:"This is hidden"`
AddCommand struct {
Positional struct {
Filename Filename
} `positional-args:"yes"`
} `command:"add" description:"add an item"`
AddMultiCommand struct {
Positional struct {
Filename []Filename
} `positional-args:"yes"`
} `command:"add-multi" description:"add multiple items"`
RemoveCommand struct {
Other bool `short:"o"`
File Filename `short:"f" long:"filename"`
} `command:"rm" description:"remove an item"`
RenameCommand struct {
Completed TestComplete `short:"c" long:"completed"`
} `command:"rename" description:"rename an item"`
}
type completionTest struct {
Args []string
Completed []string
ShowDescriptions bool
}
var completionTests []completionTest
func init() {
_, sourcefile, _, _ := runtime.Caller(0)
completionTestSourcedir := filepath.Join(filepath.SplitList(path.Dir(sourcefile))...)
completionTestFilename := []string{filepath.Join(completionTestSourcedir, "completion.go"), filepath.Join(completionTestSourcedir, "completion_test.go")}
completionTests = []completionTest{
{
// Short names
[]string{"-"},
[]string{"-d", "-v"},
false,
},
{
// Short names concatenated
[]string{"-dv"},
[]string{"-dv"},
false,
},
{
// Long names
[]string{"--"},
[]string{"--debug", "--required", "--verbose", "--version"},
false,
},
{
// Long names with descriptions
[]string{"--"},
[]string{
"--debug # Enable debug",
"--required # This is required",
"--verbose # Verbose messages",
"--version # Show version",
},
true,
},
{
// Long names partial
[]string{"--ver"},
[]string{"--verbose", "--version"},
false,
},
{
// Commands
[]string{""},
[]string{"add", "add-multi", "rename", "rm"},
false,
},
{
// Commands with descriptions
[]string{""},
[]string{
"add # add an item",
"add-multi # add multiple items",
"rename # rename an item",
"rm # remove an item",
},
true,
},
{
// Commands partial
[]string{"r"},
[]string{"rename", "rm"},
false,
},
{
// Positional filename
[]string{"add", filepath.Join(completionTestSourcedir, "completion")},
completionTestFilename,
false,
},
{
// Multiple positional filename (1 arg)
[]string{"add-multi", filepath.Join(completionTestSourcedir, "completion")},
completionTestFilename,
false,
},
{
// Multiple positional filename (2 args)
[]string{"add-multi", filepath.Join(completionTestSourcedir, "completion.go"), filepath.Join(completionTestSourcedir, "completion")},
completionTestFilename,
false,
},
{
// Multiple positional filename (3 args)
[]string{"add-multi", filepath.Join(completionTestSourcedir, "completion.go"), filepath.Join(completionTestSourcedir, "completion.go"), filepath.Join(completionTestSourcedir, "completion")},
completionTestFilename,
false,
},
{
// Flag filename
[]string{"rm", "-f", path.Join(completionTestSourcedir, "completion")},
completionTestFilename,
false,
},
{
// Flag short concat last filename
[]string{"rm", "-of", path.Join(completionTestSourcedir, "completion")},
completionTestFilename,
false,
},
{
// Flag concat filename
[]string{"rm", "-f" + path.Join(completionTestSourcedir, "completion")},
[]string{"-f" + completionTestFilename[0], "-f" + completionTestFilename[1]},
false,
},
{
// Flag equal concat filename
[]string{"rm", "-f=" + path.Join(completionTestSourcedir, "completion")},
[]string{"-f=" + completionTestFilename[0], "-f=" + completionTestFilename[1]},
false,
},
{
// Flag concat long filename
[]string{"rm", "--filename=" + path.Join(completionTestSourcedir, "completion")},
[]string{"--filename=" + completionTestFilename[0], "--filename=" + completionTestFilename[1]},
false,
},
{
// Flag long filename
[]string{"rm", "--filename", path.Join(completionTestSourcedir, "completion")},
completionTestFilename,
false,
},
{
// Custom completed
[]string{"rename", "-c", "hello un"},
[]string{"hello universe"},
false,
},
}
}
func TestCompletion(t *testing.T) {
p := NewParser(&completionTestOptions, Default)
c := &completion{parser: p}
for _, test := range completionTests {
if test.ShowDescriptions {
continue
}
ret := c.complete(test.Args)
items := make([]string, len(ret))
for i, v := range ret {
items[i] = v.Item
}
if !reflect.DeepEqual(items, test.Completed) {
t.Errorf("Args: %#v, %#v\n Expected: %#v\n Got: %#v", test.Args, test.ShowDescriptions, test.Completed, items)
}
}
}
func TestParserCompletion(t *testing.T) {
for _, test := range completionTests {
if test.ShowDescriptions {
os.Setenv("GO_FLAGS_COMPLETION", "verbose")
} else {
os.Setenv("GO_FLAGS_COMPLETION", "1")
}
tmp := os.Stdout
r, w, _ := os.Pipe()
os.Stdout = w
out := make(chan string)
go func() {
var buf bytes.Buffer
io.Copy(&buf, r)
out <- buf.String()
}()
p := NewParser(&completionTestOptions, None)
p.CompletionHandler = func(items []Completion) {
comp := &completion{parser: p}
comp.print(items, test.ShowDescriptions)
}
_, err := p.ParseArgs(test.Args)
w.Close()
os.Stdout = tmp
if err != nil {
t.Fatalf("Unexpected error: %s", err)
}
got := strings.Split(strings.Trim(<-out, "\n"), "\n")
if !reflect.DeepEqual(got, test.Completed) {
t.Errorf("Expected: %#v\nGot: %#v", test.Completed, got)
}
}
os.Setenv("GO_FLAGS_COMPLETION", "")
}

341
vendor/src/github.com/jessevdk/go-flags/convert.go vendored
View file

@ -1,341 +0,0 @@
// Copyright 2012 Jesse van den Kieboom. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package flags
import (
"fmt"
"reflect"
"strconv"
"strings"
"time"
)
// Marshaler is the interface implemented by types that can marshal themselves
// to a string representation of the flag.
type Marshaler interface {
// MarshalFlag marshals a flag value to its string representation.
MarshalFlag() (string, error)
}
// Unmarshaler is the interface implemented by types that can unmarshal a flag
// argument to themselves. The provided value is directly passed from the
// command line.
type Unmarshaler interface {
// UnmarshalFlag unmarshals a string value representation to the flag
// value (which therefore needs to be a pointer receiver).
UnmarshalFlag(value string) error
}
func getBase(options multiTag, base int) (int, error) {
sbase := options.Get("base")
var err error
var ivbase int64
if sbase != "" {
ivbase, err = strconv.ParseInt(sbase, 10, 32)
base = int(ivbase)
}
return base, err
}
func convertMarshal(val reflect.Value) (bool, string, error) {
// Check first for the Marshaler interface
if val.Type().NumMethod() > 0 && val.CanInterface() {
if marshaler, ok := val.Interface().(Marshaler); ok {
ret, err := marshaler.MarshalFlag()
return true, ret, err
}
}
return false, "", nil
}
func convertToString(val reflect.Value, options multiTag) (string, error) {
if ok, ret, err := convertMarshal(val); ok {
return ret, err
}
tp := val.Type()
// Support for time.Duration
if tp == reflect.TypeOf((*time.Duration)(nil)).Elem() {
stringer := val.Interface().(fmt.Stringer)
return stringer.String(), nil
}
switch tp.Kind() {
case reflect.String:
return val.String(), nil
case reflect.Bool:
if val.Bool() {
return "true", nil
}
return "false", nil
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
base, err := getBase(options, 10)
if err != nil {
return "", err
}
return strconv.FormatInt(val.Int(), base), nil
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
base, err := getBase(options, 10)
if err != nil {
return "", err
}
return strconv.FormatUint(val.Uint(), base), nil
case reflect.Float32, reflect.Float64:
return strconv.FormatFloat(val.Float(), 'g', -1, tp.Bits()), nil
case reflect.Slice:
if val.Len() == 0 {
return "", nil
}
ret := "["
for i := 0; i < val.Len(); i++ {
if i != 0 {
ret += ", "
}
item, err := convertToString(val.Index(i), options)
if err != nil {
return "", err
}
ret += item
}
return ret + "]", nil
case reflect.Map:
ret := "{"
for i, key := range val.MapKeys() {
if i != 0 {
ret += ", "
}
keyitem, err := convertToString(key, options)
if err != nil {
return "", err
}
item, err := convertToString(val.MapIndex(key), options)
if err != nil {
return "", err
}
ret += keyitem + ":" + item
}
return ret + "}", nil
case reflect.Ptr:
return convertToString(reflect.Indirect(val), options)
case reflect.Interface:
if !val.IsNil() {
return convertToString(val.Elem(), options)
}
}
return "", nil
}
func convertUnmarshal(val string, retval reflect.Value) (bool, error) {
if retval.Type().NumMethod() > 0 && retval.CanInterface() {
if unmarshaler, ok := retval.Interface().(Unmarshaler); ok {
return true, unmarshaler.UnmarshalFlag(val)
}
}
if retval.Type().Kind() != reflect.Ptr && retval.CanAddr() {
return convertUnmarshal(val, retval.Addr())
}
if retval.Type().Kind() == reflect.Interface && !retval.IsNil() {
return convertUnmarshal(val, retval.Elem())
}
return false, nil
}
func convert(val string, retval reflect.Value, options multiTag) error {
if ok, err := convertUnmarshal(val, retval); ok {
return err
}
tp := retval.Type()
// Support for time.Duration
if tp == reflect.TypeOf((*time.Duration)(nil)).Elem() {
parsed, err := time.ParseDuration(val)
if err != nil {
return err
}
retval.SetInt(int64(parsed))
return nil
}
switch tp.Kind() {
case reflect.String:
retval.SetString(val)
case reflect.Bool:
if val == "" {
retval.SetBool(true)
} else {
b, err := strconv.ParseBool(val)
if err != nil {
return err
}
retval.SetBool(b)
}
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
base, err := getBase(options, 10)
if err != nil {
return err
}
parsed, err := strconv.ParseInt(val, base, tp.Bits())
if err != nil {
return err
}
retval.SetInt(parsed)
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
base, err := getBase(options, 10)
if err != nil {
return err
}
parsed, err := strconv.ParseUint(val, base, tp.Bits())
if err != nil {
return err
}
retval.SetUint(parsed)
case reflect.Float32, reflect.Float64:
parsed, err := strconv.ParseFloat(val, tp.Bits())
if err != nil {
return err
}
retval.SetFloat(parsed)
case reflect.Slice:
elemtp := tp.Elem()
elemvalptr := reflect.New(elemtp)
elemval := reflect.Indirect(elemvalptr)
if err := convert(val, elemval, options); err != nil {
return err
}
retval.Set(reflect.Append(retval, elemval))
case reflect.Map:
parts := strings.SplitN(val, ":", 2)
key := parts[0]
var value string
if len(parts) == 2 {
value = parts[1]
}
keytp := tp.Key()
keyval := reflect.New(keytp)
if err := convert(key, keyval, options); err != nil {
return err
}
valuetp := tp.Elem()
valueval := reflect.New(valuetp)
if err := convert(value, valueval, options); err != nil {
return err
}
if retval.IsNil() {
retval.Set(reflect.MakeMap(tp))
}
retval.SetMapIndex(reflect.Indirect(keyval), reflect.Indirect(valueval))
case reflect.Ptr:
if retval.IsNil() {
retval.Set(reflect.New(retval.Type().Elem()))
}
return convert(val, reflect.Indirect(retval), options)
case reflect.Interface:
if !retval.IsNil() {
return convert(val, retval.Elem(), options)
}
}
return nil
}
func isPrint(s string) bool {
for _, c := range s {
if !strconv.IsPrint(c) {
return false
}
}
return true
}
func quoteIfNeeded(s string) string {
if !isPrint(s) {
return strconv.Quote(s)
}
return s
}
func quoteIfNeededV(s []string) []string {
ret := make([]string, len(s))
for i, v := range s {
ret[i] = quoteIfNeeded(v)
}
return ret
}
func quoteV(s []string) []string {
ret := make([]string, len(s))
for i, v := range s {
ret[i] = strconv.Quote(v)
}
return ret
}
func unquoteIfPossible(s string) (string, error) {
if len(s) == 0 || s[0] != '"' {
return s, nil
}
return strconv.Unquote(s)
}

159
vendor/src/github.com/jessevdk/go-flags/convert_test.go vendored
View file

@ -1,159 +0,0 @@
package flags
import (
"testing"
"time"
)
func expectConvert(t *testing.T, o *Option, expected string) {
s, err := convertToString(o.value, o.tag)
if err != nil {
t.Errorf("Unexpected error: %v", err)
return
}
assertString(t, s, expected)
}
func TestConvertToString(t *testing.T) {
d, _ := time.ParseDuration("1h2m4s")
var opts = struct {
String string `long:"string"`
Int int `long:"int"`
Int8 int8 `long:"int8"`
Int16 int16 `long:"int16"`
Int32 int32 `long:"int32"`
Int64 int64 `long:"int64"`
Uint uint `long:"uint"`
Uint8 uint8 `long:"uint8"`
Uint16 uint16 `long:"uint16"`
Uint32 uint32 `long:"uint32"`
Uint64 uint64 `long:"uint64"`
Float32 float32 `long:"float32"`
Float64 float64 `long:"float64"`
Duration time.Duration `long:"duration"`
Bool bool `long:"bool"`
IntSlice []int `long:"int-slice"`
IntFloatMap map[int]float64 `long:"int-float-map"`
PtrBool *bool `long:"ptr-bool"`
Interface interface{} `long:"interface"`
Int32Base int32 `long:"int32-base" base:"16"`
Uint32Base uint32 `long:"uint32-base" base:"16"`
}{
"string",
-2,
-1,
0,
1,
2,
1,
2,
3,
4,
5,
1.2,
-3.4,
d,
true,
[]int{-3, 4, -2},
map[int]float64{-2: 4.5},
new(bool),
float32(5.2),
-5823,
4232,
}
p := NewNamedParser("test", Default)
grp, _ := p.AddGroup("test group", "", &opts)
expects := []string{
"string",
"-2",
"-1",
"0",
"1",
"2",
"1",
"2",
"3",
"4",
"5",
"1.2",
"-3.4",
"1h2m4s",
"true",
"[-3, 4, -2]",
"{-2:4.5}",
"false",
"5.2",
"-16bf",
"1088",
}
for i, v := range grp.Options() {
expectConvert(t, v, expects[i])
}
}
func TestConvertToStringInvalidIntBase(t *testing.T) {
var opts = struct {
Int int `long:"int" base:"no"`
}{
2,
}
p := NewNamedParser("test", Default)
grp, _ := p.AddGroup("test group", "", &opts)
o := grp.Options()[0]
_, err := convertToString(o.value, o.tag)
if err != nil {
err = newErrorf(ErrMarshal, "%v", err)
}
assertError(t, err, ErrMarshal, "strconv.ParseInt: parsing \"no\": invalid syntax")
}
func TestConvertToStringInvalidUintBase(t *testing.T) {
var opts = struct {
Uint uint `long:"uint" base:"no"`
}{
2,
}
p := NewNamedParser("test", Default)
grp, _ := p.AddGroup("test group", "", &opts)
o := grp.Options()[0]
_, err := convertToString(o.value, o.tag)
if err != nil {
err = newErrorf(ErrMarshal, "%v", err)
}
assertError(t, err, ErrMarshal, "strconv.ParseInt: parsing \"no\": invalid syntax")
}

134
vendor/src/github.com/jessevdk/go-flags/error.go vendored
View file

@ -1,134 +0,0 @@
package flags
import (
"fmt"
)
// ErrorType represents the type of error.
type ErrorType uint
const (
// ErrUnknown indicates a generic error.
ErrUnknown ErrorType = iota
// ErrExpectedArgument indicates that an argument was expected.
ErrExpectedArgument
// ErrUnknownFlag indicates an unknown flag.
ErrUnknownFlag
// ErrUnknownGroup indicates an unknown group.
ErrUnknownGroup
// ErrMarshal indicates a marshalling error while converting values.
ErrMarshal
// ErrHelp indicates that the built-in help was shown (the error
// contains the help message).
ErrHelp
// ErrNoArgumentForBool indicates that an argument was given for a
// boolean flag (which don't not take any arguments).
ErrNoArgumentForBool
// ErrRequired indicates that a required flag was not provided.
ErrRequired
// ErrShortNameTooLong indicates that a short flag name was specified,
// longer than one character.
ErrShortNameTooLong
// ErrDuplicatedFlag indicates that a short or long flag has been
// defined more than once
ErrDuplicatedFlag
// ErrTag indicates an error while parsing flag tags.
ErrTag
// ErrCommandRequired indicates that a command was required but not
// specified
ErrCommandRequired
// ErrUnknownCommand indicates that an unknown command was specified.
ErrUnknownCommand
// ErrInvalidChoice indicates an invalid option value which only allows
// a certain number of choices.
ErrInvalidChoice
// ErrInvalidTag indicates an invalid tag or invalid use of an existing tag
ErrInvalidTag
)
func (e ErrorType) String() string {
switch e {
case ErrUnknown:
return "unknown"
case ErrExpectedArgument:
return "expected argument"
case ErrUnknownFlag:
return "unknown flag"
case ErrUnknownGroup:
return "unknown group"
case ErrMarshal:
return "marshal"
case ErrHelp:
return "help"
case ErrNoArgumentForBool:
return "no argument for bool"
case ErrRequired:
return "required"
case ErrShortNameTooLong:
return "short name too long"
case ErrDuplicatedFlag:
return "duplicated flag"
case ErrTag:
return "tag"
case ErrCommandRequired:
return "command required"
case ErrUnknownCommand:
return "unknown command"
case ErrInvalidChoice:
return "invalid choice"
case ErrInvalidTag:
return "invalid tag"
}
return "unrecognized error type"
}
// Error represents a parser error. The error returned from Parse is of this
// type. The error contains both a Type and Message.
type Error struct {
// The type of error
Type ErrorType
// The error message
Message string
}
// Error returns the error's message
func (e *Error) Error() string {
return e.Message
}
func newError(tp ErrorType, message string) *Error {
return &Error{
Type: tp,
Message: message,
}
}
func newErrorf(tp ErrorType, format string, args ...interface{}) *Error {
return newError(tp, fmt.Sprintf(format, args...))
}
func wrapError(err error) *Error {
ret, ok := err.(*Error)
if !ok {
return newError(ErrUnknown, err.Error())
}
return ret
}

110
vendor/src/github.com/jessevdk/go-flags/example_test.go vendored
View file

@ -1,110 +0,0 @@
// Example of use of the flags package.
package flags
import (
"fmt"
"os/exec"
)
func Example() {
var opts struct {
// Slice of bool will append 'true' each time the option
// is encountered (can be set multiple times, like -vvv)
Verbose []bool `short:"v" long:"verbose" description:"Show verbose debug information"`
// Example of automatic marshalling to desired type (uint)
Offset uint `long:"offset" description:"Offset"`
// Example of a callback, called each time the option is found.
Call func(string) `short:"c" description:"Call phone number"`
// Example of a required flag
Name string `short:"n" long:"name" description:"A name" required:"true"`
// Example of a value name
File string `short:"f" long:"file" description:"A file" value-name:"FILE"`
// Example of a pointer
Ptr *int `short:"p" description:"A pointer to an integer"`
// Example of a slice of strings
StringSlice []string `short:"s" description:"A slice of strings"`
// Example of a slice of pointers
PtrSlice []*string `long:"ptrslice" description:"A slice of pointers to string"`
// Example of a map
IntMap map[string]int `long:"intmap" description:"A map from string to int"`
// Example of a filename (useful for completion)
Filename Filename `long:"filename" description:"A filename"`
// Example of positional arguments
Args struct {
ID string
Num int
Rest []string
} `positional-args:"yes" required:"yes"`
}
// Callback which will invoke callto:<argument> to call a number.
// Note that this works just on OS X (and probably only with
// Skype) but it shows the idea.
opts.Call = func(num string) {
cmd := exec.Command("open", "callto:"+num)
cmd.Start()
cmd.Process.Release()
}
// Make some fake arguments to parse.
args := []string{
"-vv",
"--offset=5",
"-n", "Me",
"-p", "3",
"-s", "hello",
"-s", "world",
"--ptrslice", "hello",
"--ptrslice", "world",
"--intmap", "a:1",
"--intmap", "b:5",
"--filename", "hello.go",
"id",
"10",
"remaining1",
"remaining2",
}
// Parse flags from `args'. Note that here we use flags.ParseArgs for
// the sake of making a working example. Normally, you would simply use
// flags.Parse(&opts) which uses os.Args
_, err := ParseArgs(&opts, args)
if err != nil {
panic(err)
}
fmt.Printf("Verbosity: %v\n", opts.Verbose)
fmt.Printf("Offset: %d\n", opts.Offset)
fmt.Printf("Name: %s\n", opts.Name)
fmt.Printf("Ptr: %d\n", *opts.Ptr)
fmt.Printf("StringSlice: %v\n", opts.StringSlice)
fmt.Printf("PtrSlice: [%v %v]\n", *opts.PtrSlice[0], *opts.PtrSlice[1])
fmt.Printf("IntMap: [a:%v b:%v]\n", opts.IntMap["a"], opts.IntMap["b"])
fmt.Printf("Filename: %v\n", opts.Filename)
fmt.Printf("Args.ID: %s\n", opts.Args.ID)
fmt.Printf("Args.Num: %d\n", opts.Args.Num)
fmt.Printf("Args.Rest: %v\n", opts.Args.Rest)
// Output: Verbosity: [true true]
// Offset: 5
// Name: Me
// Ptr: 3
// StringSlice: [hello world]
// PtrSlice: [hello world]
// IntMap: [a:1 b:5]
// Filename: hello.go
// Args.ID: id
// Args.Num: 10
// Args.Rest: [remaining1 remaining2]
}

23
vendor/src/github.com/jessevdk/go-flags/examples/add.go vendored
View file

@ -1,23 +0,0 @@
package main
import (
"fmt"
)
type AddCommand struct {
All bool `short:"a" long:"all" description:"Add all files"`
}
var addCommand AddCommand
func (x *AddCommand) Execute(args []string) error {
fmt.Printf("Adding (all=%v): %#v\n", x.All, args)
return nil
}
func init() {
parser.AddCommand("add",
"Add a file",
"The add command adds a file to the repository. Use -a to add all files.",
&addCommand)
}

9
vendor/src/github.com/jessevdk/go-flags/examples/bash-completion vendored
View file

@ -1,9 +0,0 @@
_examples() {
args=("${COMP_WORDS[@]:1:$COMP_CWORD}")
local IFS=$'\n'
COMPREPLY=($(GO_FLAGS_COMPLETION=1 ${COMP_WORDS[0]} "${args[@]}"))
return 1
}
complete -F _examples examples

75
vendor/src/github.com/jessevdk/go-flags/examples/main.go vendored
View file

@ -1,75 +0,0 @@
package main
import (
"errors"
"fmt"
"github.com/jessevdk/go-flags"
"os"
"strconv"
"strings"
)
type EditorOptions struct {
Input flags.Filename `short:"i" long:"input" description:"Input file" default:"-"`
Output flags.Filename `short:"o" long:"output" description:"Output file" default:"-"`
}
type Point struct {
X, Y int
}
func (p *Point) UnmarshalFlag(value string) error {
parts := strings.Split(value, ",")
if len(parts) != 2 {
return errors.New("expected two numbers separated by a ,")
}
x, err := strconv.ParseInt(parts[0], 10, 32)
if err != nil {
return err
}
y, err := strconv.ParseInt(parts[1], 10, 32)
if err != nil {
return err
}
p.X = int(x)
p.Y = int(y)
return nil
}
func (p Point) MarshalFlag() (string, error) {
return fmt.Sprintf("%d,%d", p.X, p.Y), nil
}
type Options struct {
// Example of verbosity with level
Verbose []bool `short:"v" long:"verbose" description:"Verbose output"`
// Example of optional value
User string `short:"u" long:"user" description:"User name" optional:"yes" optional-value:"pancake"`
// Example of map with multiple default values
Users map[string]string `long:"users" description:"User e-mail map" default:"system:system@example.org" default:"admin:admin@example.org"`
// Example of option group
Editor EditorOptions `group:"Editor Options"`
// Example of custom type Marshal/Unmarshal
Point Point `long:"point" description:"A x,y point" default:"1,2"`
}
var options Options
var parser = flags.NewParser(&options, flags.Default)
func main() {
if _, err := parser.Parse(); err != nil {
os.Exit(1)
}
}

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package main
import (
"fmt"
)
type RmCommand struct {
Force bool `short:"f" long:"force" description:"Force removal of files"`
}
var rmCommand RmCommand
func (x *RmCommand) Execute(args []string) error {
fmt.Printf("Removing (force=%v): %#v\n", x.Force, args)
return nil
}
func init() {
parser.AddCommand("rm",
"Remove a file",
"The rm command removes a file to the repository. Use -f to force removal of files.",
&rmCommand)
}

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// Copyright 2012 Jesse van den Kieboom. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
/*
Package flags provides an extensive command line option parser.
The flags package is similar in functionality to the go built-in flag package
but provides more options and uses reflection to provide a convenient and
succinct way of specifying command line options.
Supported features
The following features are supported in go-flags:
Options with short names (-v)
Options with long names (--verbose)
Options with and without arguments (bool v.s. other type)
Options with optional arguments and default values
Option default values from ENVIRONMENT_VARIABLES, including slice and map values
Multiple option groups each containing a set of options
Generate and print well-formatted help message
Passing remaining command line arguments after -- (optional)
Ignoring unknown command line options (optional)
Supports -I/usr/include -I=/usr/include -I /usr/include option argument specification
Supports multiple short options -aux
Supports all primitive go types (string, int{8..64}, uint{8..64}, float)
Supports same option multiple times (can store in slice or last option counts)
Supports maps
Supports function callbacks
Supports namespaces for (nested) option groups
Additional features specific to Windows:
Options with short names (/v)
Options with long names (/verbose)
Windows-style options with arguments use a colon as the delimiter
Modify generated help message with Windows-style / options
Windows style options can be disabled at build time using the "forceposix"
build tag
Basic usage
The flags package uses structs, reflection and struct field tags
to allow users to specify command line options. This results in very simple
and concise specification of your application options. For example:
type Options struct {
Verbose []bool `short:"v" long:"verbose" description:"Show verbose debug information"`
}
This specifies one option with a short name -v and a long name --verbose.
When either -v or --verbose is found on the command line, a 'true' value
will be appended to the Verbose field. e.g. when specifying -vvv, the
resulting value of Verbose will be {[true, true, true]}.
Slice options work exactly the same as primitive type options, except that
whenever the option is encountered, a value is appended to the slice.
Map options from string to primitive type are also supported. On the command
line, you specify the value for such an option as key:value. For example
type Options struct {
AuthorInfo string[string] `short:"a"`
}
Then, the AuthorInfo map can be filled with something like
-a name:Jesse -a "surname:van den Kieboom".
Finally, for full control over the conversion between command line argument
values and options, user defined types can choose to implement the Marshaler
and Unmarshaler interfaces.
Available field tags
The following is a list of tags for struct fields supported by go-flags:
short: the short name of the option (single character)
long: the long name of the option
required: whether an option is required to appear on the command
line. If a required option is not present, the parser will
return ErrRequired (optional)
description: the description of the option (optional)
long-description: the long description of the option. Currently only
displayed in generated man pages (optional)
no-flag: if non-empty this field is ignored as an option (optional)
optional: whether an argument of the option is optional. When an
argument is optional it can only be specified using
--option=argument (optional)
optional-value: the value of an optional option when the option occurs
without an argument. This tag can be specified multiple
times in the case of maps or slices (optional)
default: the default value of an option. This tag can be specified
multiple times in the case of slices or maps (optional)
default-mask: when specified, this value will be displayed in the help
instead of the actual default value. This is useful
mostly for hiding otherwise sensitive information from
showing up in the help. If default-mask takes the special
value "-", then no default value will be shown at all
(optional)
env: the default value of the option is overridden from the
specified environment variable, if one has been defined.
(optional)
env-delim: the 'env' default value from environment is split into
multiple values with the given delimiter string, use with
slices and maps (optional)
value-name: the name of the argument value (to be shown in the help)
(optional)
choice: limits the values for an option to a set of values.
This tag can be specified mltiple times (optional)
hidden: the option is not visible in the help or man page.
base: a base (radix) used to convert strings to integer values, the
default base is 10 (i.e. decimal) (optional)
ini-name: the explicit ini option name (optional)
no-ini: if non-empty this field is ignored as an ini option
(optional)
group: when specified on a struct field, makes the struct
field a separate group with the given name (optional)
namespace: when specified on a group struct field, the namespace
gets prepended to every option's long name and
subgroup's namespace of this group, separated by
the parser's namespace delimiter (optional)
command: when specified on a struct field, makes the struct
field a (sub)command with the given name (optional)
subcommands-optional: when specified on a command struct field, makes
any subcommands of that command optional (optional)
alias: when specified on a command struct field, adds the
specified name as an alias for the command. Can be
be specified multiple times to add more than one
alias (optional)
positional-args: when specified on a field with a struct type,
uses the fields of that struct to parse remaining
positional command line arguments into (in order
of the fields). If a field has a slice type,
then all remaining arguments will be added to it.
Positional arguments are optional by default,
unless the "required" tag is specified together
with the "positional-args" tag. The "required" tag
can also be set on the individual rest argument
fields, to require only the first N positional
arguments. If the "required" tag is set on the
rest arguments slice, then its value determines
the minimum amount of rest arguments that needs to
be provided (e.g. `required:"2"`) (optional)
positional-arg-name: used on a field in a positional argument struct; name
of the positional argument placeholder to be shown in
the help (optional)
Either the `short:` tag or the `long:` must be specified to make the field eligible as an
option.
Option groups
Option groups are a simple way to semantically separate your options. All
options in a particular group are shown together in the help under the name
of the group. Namespaces can be used to specify option long names more
precisely and emphasize the options affiliation to their group.
There are currently three ways to specify option groups.
1. Use NewNamedParser specifying the various option groups.
2. Use AddGroup to add a group to an existing parser.
3. Add a struct field to the top-level options annotated with the
group:"group-name" tag.
Commands
The flags package also has basic support for commands. Commands are often
used in monolithic applications that support various commands or actions.
Take git for example, all of the add, commit, checkout, etc. are called
commands. Using commands you can easily separate multiple functions of your
application.
There are currently two ways to specify a command.
1. Use AddCommand on an existing parser.
2. Add a struct field to your options struct annotated with the
command:"command-name" tag.
The most common, idiomatic way to implement commands is to define a global
parser instance and implement each command in a separate file. These
command files should define a go init function which calls AddCommand on
the global parser.
When parsing ends and there is an active command and that command implements
the Commander interface, then its Execute method will be run with the
remaining command line arguments.
Command structs can have options which become valid to parse after the
command has been specified on the command line, in addition to the options
of all the parent commands. I.e. considering a -v flag on the parser and an
add command, the following are equivalent:
./app -v add
./app add -v
However, if the -v flag is defined on the add command, then the first of
the two examples above would fail since the -v flag is not defined before
the add command.
Completion
go-flags has builtin support to provide bash completion of flags, commands
and argument values. To use completion, the binary which uses go-flags
can be invoked in a special environment to list completion of the current
command line argument. It should be noted that this `executes` your application,
and it is up to the user to make sure there are no negative side effects (for
example from init functions).
Setting the environment variable `GO_FLAGS_COMPLETION=1` enables completion
by replacing the argument parsing routine with the completion routine which
outputs completions for the passed arguments. The basic invocation to
complete a set of arguments is therefore:
GO_FLAGS_COMPLETION=1 ./completion-example arg1 arg2 arg3
where `completion-example` is the binary, `arg1` and `arg2` are
the current arguments, and `arg3` (the last argument) is the argument
to be completed. If the GO_FLAGS_COMPLETION is set to "verbose", then
descriptions of possible completion items will also be shown, if there
are more than 1 completion items.
To use this with bash completion, a simple file can be written which
calls the binary which supports go-flags completion:
_completion_example() {
# All arguments except the first one
args=("${COMP_WORDS[@]:1:$COMP_CWORD}")
# Only split on newlines
local IFS=$'\n'
# Call completion (note that the first element of COMP_WORDS is
# the executable itself)
COMPREPLY=($(GO_FLAGS_COMPLETION=1 ${COMP_WORDS[0]} "${args[@]}"))
return 0
}
complete -F _completion_example completion-example
Completion requires the parser option PassDoubleDash and is therefore enforced if the environment variable GO_FLAGS_COMPLETION is set.
Customized completion for argument values is supported by implementing
the flags.Completer interface for the argument value type. An example
of a type which does so is the flags.Filename type, an alias of string
allowing simple filename completion. A slice or array argument value
whose element type implements flags.Completer will also be completed.
*/
package flags

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// Copyright 2012 Jesse van den Kieboom. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package flags
import (
"errors"
"reflect"
"strings"
"unicode/utf8"
"unsafe"
)
// ErrNotPointerToStruct indicates that a provided data container is not
// a pointer to a struct. Only pointers to structs are valid data containers
// for options.
var ErrNotPointerToStruct = errors.New("provided data is not a pointer to struct")
// Group represents an option group. Option groups can be used to logically
// group options together under a description. Groups are only used to provide
// more structure to options both for the user (as displayed in the help message)
// and for you, since groups can be nested.
type Group struct {
// A short description of the group. The
// short description is primarily used in the built-in generated help
// message
ShortDescription string
// A long description of the group. The long
// description is primarily used to present information on commands
// (Command embeds Group) in the built-in generated help and man pages.
LongDescription string
// The namespace of the group
Namespace string
// If true, the group is not displayed in the help or man page
Hidden bool
// The parent of the group or nil if it has no parent
parent interface{}
// All the options in the group
options []*Option
// All the subgroups
groups []*Group
// Whether the group represents the built-in help group
isBuiltinHelp bool
data interface{}
}
type scanHandler func(reflect.Value, *reflect.StructField) (bool, error)
// AddGroup adds a new group to the command with the given name and data. The
// data needs to be a pointer to a struct from which the fields indicate which
// options are in the group.
func (g *Group) AddGroup(shortDescription string, longDescription string, data interface{}) (*Group, error) {
group := newGroup(shortDescription, longDescription, data)
group.parent = g
if err := group.scan(); err != nil {
return nil, err
}
g.groups = append(g.groups, group)
return group, nil
}
// Groups returns the list of groups embedded in this group.
func (g *Group) Groups() []*Group {
return g.groups
}
// Options returns the list of options in this group.
func (g *Group) Options() []*Option {
return g.options
}
// Find locates the subgroup with the given short description and returns it.
// If no such group can be found Find will return nil. Note that the description
// is matched case insensitively.
func (g *Group) Find(shortDescription string) *Group {
lshortDescription := strings.ToLower(shortDescription)
var ret *Group
g.eachGroup(func(gg *Group) {
if gg != g && strings.ToLower(gg.ShortDescription) == lshortDescription {
ret = gg
}
})
return ret
}
func (g *Group) findOption(matcher func(*Option) bool) (option *Option) {
g.eachGroup(func(g *Group) {
for _, opt := range g.options {
if option == nil && matcher(opt) {
option = opt
}
}
})
return option
}
// FindOptionByLongName finds an option that is part of the group, or any of its
// subgroups, by matching its long name (including the option namespace).
func (g *Group) FindOptionByLongName(longName string) *Option {
return g.findOption(func(option *Option) bool {
return option.LongNameWithNamespace() == longName
})
}
// FindOptionByShortName finds an option that is part of the group, or any of
// its subgroups, by matching its short name.
func (g *Group) FindOptionByShortName(shortName rune) *Option {
return g.findOption(func(option *Option) bool {
return option.ShortName == shortName
})
}
func newGroup(shortDescription string, longDescription string, data interface{}) *Group {
return &Group{
ShortDescription: shortDescription,
LongDescription: longDescription,
data: data,
}
}
func (g *Group) optionByName(name string, namematch func(*Option, string) bool) *Option {
prio := 0
var retopt *Option
g.eachGroup(func(g *Group) {
for _, opt := range g.options {
if namematch != nil && namematch(opt, name) && prio < 4 {
retopt = opt
prio = 4
}
if name == opt.field.Name && prio < 3 {
retopt = opt
prio = 3
}
if name == opt.LongNameWithNamespace() && prio < 2 {
retopt = opt
prio = 2
}
if opt.ShortName != 0 && name == string(opt.ShortName) && prio < 1 {
retopt = opt
prio = 1
}
}
})
return retopt
}
func (g *Group) eachGroup(f func(*Group)) {
f(g)
for _, gg := range g.groups {
gg.eachGroup(f)
}
}
func (g *Group) scanStruct(realval reflect.Value, sfield *reflect.StructField, handler scanHandler) error {
stype := realval.Type()
if sfield != nil {
if ok, err := handler(realval, sfield); err != nil {
return err
} else if ok {
return nil
}
}
for i := 0; i < stype.NumField(); i++ {
field := stype.Field(i)
// PkgName is set only for non-exported fields, which we ignore
if field.PkgPath != "" && !field.Anonymous {
continue
}
mtag := newMultiTag(string(field.Tag))
if err := mtag.Parse(); err != nil {
return err
}
// Skip fields with the no-flag tag
if mtag.Get("no-flag") != "" {
continue
}
// Dive deep into structs or pointers to structs
kind := field.Type.Kind()
fld := realval.Field(i)
if kind == reflect.Struct {
if err := g.scanStruct(fld, &field, handler); err != nil {
return err
}
} else if kind == reflect.Ptr && field.Type.Elem().Kind() == reflect.Struct {
if fld.IsNil() {
fld.Set(reflect.New(fld.Type().Elem()))
}
if err := g.scanStruct(reflect.Indirect(fld), &field, handler); err != nil {
return err
}
}
longname := mtag.Get("long")
shortname := mtag.Get("short")
// Need at least either a short or long name
if longname == "" && shortname == "" && mtag.Get("ini-name") == "" {
continue
}
short := rune(0)
rc := utf8.RuneCountInString(shortname)
if rc > 1 {
return newErrorf(ErrShortNameTooLong,
"short names can only be 1 character long, not `%s'",
shortname)
} else if rc == 1 {
short, _ = utf8.DecodeRuneInString(shortname)
}
description := mtag.Get("description")
def := mtag.GetMany("default")
optionalValue := mtag.GetMany("optional-value")
valueName := mtag.Get("value-name")
defaultMask := mtag.Get("default-mask")
optional := (mtag.Get("optional") != "")
required := (mtag.Get("required") != "")
choices := mtag.GetMany("choice")
hidden := (mtag.Get("hidden") != "")
option := &Option{
Description: description,
ShortName: short,
LongName: longname,
Default: def,
EnvDefaultKey: mtag.Get("env"),
EnvDefaultDelim: mtag.Get("env-delim"),
OptionalArgument: optional,
OptionalValue: optionalValue,
Required: required,
ValueName: valueName,
DefaultMask: defaultMask,
Choices: choices,
Hidden: hidden,
group: g,
field: field,
value: realval.Field(i),
tag: mtag,
}
if option.isBool() && option.Default != nil {
return newErrorf(ErrInvalidTag,
"boolean flag `%s' may not have default values, they always default to `false' and can only be turned on",
option.shortAndLongName())
}
g.options = append(g.options, option)
}
return nil
}
func (g *Group) checkForDuplicateFlags() *Error {
shortNames := make(map[rune]*Option)
longNames := make(map[string]*Option)
var duplicateError *Error
g.eachGroup(func(g *Group) {
for _, option := range g.options {
if option.LongName != "" {
longName := option.LongNameWithNamespace()
if otherOption, ok := longNames[longName]; ok {
duplicateError = newErrorf(ErrDuplicatedFlag, "option `%s' uses the same long name as option `%s'", option, otherOption)
return
}
longNames[longName] = option
}
if option.ShortName != 0 {
if otherOption, ok := shortNames[option.ShortName]; ok {
duplicateError = newErrorf(ErrDuplicatedFlag, "option `%s' uses the same short name as option `%s'", option, otherOption)
return
}
shortNames[option.ShortName] = option
}
}
})
return duplicateError
}
func (g *Group) scanSubGroupHandler(realval reflect.Value, sfield *reflect.StructField) (bool, error) {
mtag := newMultiTag(string(sfield.Tag))
if err := mtag.Parse(); err != nil {
return true, err
}
subgroup := mtag.Get("group")
if len(subgroup) != 0 {
ptrval := reflect.NewAt(realval.Type(), unsafe.Pointer(realval.UnsafeAddr()))
description := mtag.Get("description")
group, err := g.AddGroup(subgroup, description, ptrval.Interface())
if err != nil {
return true, err
}
group.Namespace = mtag.Get("namespace")
group.Hidden = mtag.Get("hidden") != ""
return true, nil
}
return false, nil
}
func (g *Group) scanType(handler scanHandler) error {
// Get all the public fields in the data struct
ptrval := reflect.ValueOf(g.data)
if ptrval.Type().Kind() != reflect.Ptr {
panic(ErrNotPointerToStruct)
}
stype := ptrval.Type().Elem()
if stype.Kind() != reflect.Struct {
panic(ErrNotPointerToStruct)
}
realval := reflect.Indirect(ptrval)
if err := g.scanStruct(realval, nil, handler); err != nil {
return err
}
if err := g.checkForDuplicateFlags(); err != nil {
return err
}
return nil
}
func (g *Group) scan() error {
return g.scanType(g.scanSubGroupHandler)
}
func (g *Group) groupByName(name string) *Group {
if len(name) == 0 {
return g
}
return g.Find(name)
}

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package flags
import (
"testing"
)
func TestGroupInline(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Group struct {
G bool `short:"g"`
} `group:"Grouped Options"`
}{}
p, ret := assertParserSuccess(t, &opts, "-v", "-g")
assertStringArray(t, ret, []string{})
if !opts.Value {
t.Errorf("Expected Value to be true")
}
if !opts.Group.G {
t.Errorf("Expected Group.G to be true")
}
if p.Command.Group.Find("Grouped Options") == nil {
t.Errorf("Expected to find group `Grouped Options'")
}
}
func TestGroupAdd(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
}{}
var grp = struct {
G bool `short:"g"`
}{}
p := NewParser(&opts, Default)
g, err := p.AddGroup("Grouped Options", "", &grp)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
return
}
ret, err := p.ParseArgs([]string{"-v", "-g", "rest"})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
return
}
assertStringArray(t, ret, []string{"rest"})
if !opts.Value {
t.Errorf("Expected Value to be true")
}
if !grp.G {
t.Errorf("Expected Group.G to be true")
}
if p.Command.Group.Find("Grouped Options") != g {
t.Errorf("Expected to find group `Grouped Options'")
}
if p.Groups()[1] != g {
t.Errorf("Expected group %#v, but got %#v", g, p.Groups()[0])
}
if g.Options()[0].ShortName != 'g' {
t.Errorf("Expected short name `g' but got %v", g.Options()[0].ShortName)
}
}
func TestGroupNestedInline(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Group struct {
G bool `short:"g"`
Nested struct {
N string `long:"n"`
} `group:"Nested Options"`
} `group:"Grouped Options"`
}{}
p, ret := assertParserSuccess(t, &opts, "-v", "-g", "--n", "n", "rest")
assertStringArray(t, ret, []string{"rest"})
if !opts.Value {
t.Errorf("Expected Value to be true")
}
if !opts.Group.G {
t.Errorf("Expected Group.G to be true")
}
assertString(t, opts.Group.Nested.N, "n")
if p.Command.Group.Find("Grouped Options") == nil {
t.Errorf("Expected to find group `Grouped Options'")
}
if p.Command.Group.Find("Nested Options") == nil {
t.Errorf("Expected to find group `Nested Options'")
}
}
func TestGroupNestedInlineNamespace(t *testing.T) {
var opts = struct {
Opt string `long:"opt"`
Group struct {
Opt string `long:"opt"`
Group struct {
Opt string `long:"opt"`
} `group:"Subsubgroup" namespace:"sap"`
} `group:"Subgroup" namespace:"sip"`
}{}
p, ret := assertParserSuccess(t, &opts, "--opt", "a", "--sip.opt", "b", "--sip.sap.opt", "c", "rest")
assertStringArray(t, ret, []string{"rest"})
assertString(t, opts.Opt, "a")
assertString(t, opts.Group.Opt, "b")
assertString(t, opts.Group.Group.Opt, "c")
for _, name := range []string{"Subgroup", "Subsubgroup"} {
if p.Command.Group.Find(name) == nil {
t.Errorf("Expected to find group '%s'", name)
}
}
}
func TestDuplicateShortFlags(t *testing.T) {
var opts struct {
Verbose []bool `short:"v" long:"verbose" description:"Show verbose debug information"`
Variables []string `short:"v" long:"variable" description:"Set a variable value."`
}
args := []string{
"--verbose",
"-v", "123",
"-v", "456",
}
_, err := ParseArgs(&opts, args)
if err == nil {
t.Errorf("Expected an error with type ErrDuplicatedFlag")
} else {
err2 := err.(*Error)
if err2.Type != ErrDuplicatedFlag {
t.Errorf("Expected an error with type ErrDuplicatedFlag")
}
}
}
func TestDuplicateLongFlags(t *testing.T) {
var opts struct {
Test1 []bool `short:"a" long:"testing" description:"Test 1"`
Test2 []string `short:"b" long:"testing" description:"Test 2."`
}
args := []string{
"--testing",
}
_, err := ParseArgs(&opts, args)
if err == nil {
t.Errorf("Expected an error with type ErrDuplicatedFlag")
} else {
err2 := err.(*Error)
if err2.Type != ErrDuplicatedFlag {
t.Errorf("Expected an error with type ErrDuplicatedFlag")
}
}
}
func TestFindOptionByLongFlag(t *testing.T) {
var opts struct {
Testing bool `long:"testing" description:"Testing"`
}
p := NewParser(&opts, Default)
opt := p.FindOptionByLongName("testing")
if opt == nil {
t.Errorf("Expected option, but found none")
}
assertString(t, opt.LongName, "testing")
}
func TestFindOptionByShortFlag(t *testing.T) {
var opts struct {
Testing bool `short:"t" description:"Testing"`
}
p := NewParser(&opts, Default)
opt := p.FindOptionByShortName('t')
if opt == nil {
t.Errorf("Expected option, but found none")
}
if opt.ShortName != 't' {
t.Errorf("Expected 't', but got %v", opt.ShortName)
}
}
func TestFindOptionByLongFlagInSubGroup(t *testing.T) {
var opts struct {
Group struct {
Testing bool `long:"testing" description:"Testing"`
} `group:"sub-group"`
}
p := NewParser(&opts, Default)
opt := p.FindOptionByLongName("testing")
if opt == nil {
t.Errorf("Expected option, but found none")
}
assertString(t, opt.LongName, "testing")
}
func TestFindOptionByShortFlagInSubGroup(t *testing.T) {
var opts struct {
Group struct {
Testing bool `short:"t" description:"Testing"`
} `group:"sub-group"`
}
p := NewParser(&opts, Default)
opt := p.FindOptionByShortName('t')
if opt == nil {
t.Errorf("Expected option, but found none")
}
if opt.ShortName != 't' {
t.Errorf("Expected 't', but got %v", opt.ShortName)
}
}

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// Copyright 2012 Jesse van den Kieboom. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package flags
import (
"bufio"
"bytes"
"fmt"
"io"
"runtime"
"strings"
"unicode/utf8"
)
type alignmentInfo struct {
maxLongLen int
hasShort bool
hasValueName bool
terminalColumns int
indent bool
}
const (
paddingBeforeOption = 2
distanceBetweenOptionAndDescription = 2
)
func (a *alignmentInfo) descriptionStart() int {
ret := a.maxLongLen + distanceBetweenOptionAndDescription
if a.hasShort {
ret += 2
}
if a.maxLongLen > 0 {
ret += 4
}
if a.hasValueName {
ret += 3
}
return ret
}
func (a *alignmentInfo) updateLen(name string, indent bool) {
l := utf8.RuneCountInString(name)
if indent {
l = l + 4
}
if l > a.maxLongLen {
a.maxLongLen = l
}
}
func (p *Parser) getAlignmentInfo() alignmentInfo {
ret := alignmentInfo{
maxLongLen: 0,
hasShort: false,
hasValueName: false,
terminalColumns: getTerminalColumns(),
}
if ret.terminalColumns <= 0 {
ret.terminalColumns = 80
}
var prevcmd *Command
p.eachActiveGroup(func(c *Command, grp *Group) {
if c != prevcmd {
for _, arg := range c.args {
ret.updateLen(arg.Name, c != p.Command)
}
}
for _, info := range grp.options {
if !info.canCli() {
continue
}
if info.ShortName != 0 {
ret.hasShort = true
}
if len(info.ValueName) > 0 {
ret.hasValueName = true
}
l := info.LongNameWithNamespace() + info.ValueName
if len(info.Choices) != 0 {
l += "[" + strings.Join(info.Choices, "|") + "]"
}
ret.updateLen(l, c != p.Command)
}
})
return ret
}
func wrapText(s string, l int, prefix string) string {
var ret string
// Basic text wrapping of s at spaces to fit in l
lines := strings.Split(s, "\n")
for _, line := range lines {
var retline string
line = strings.TrimSpace(line)
for len(line) > l {
// Try to split on space
suffix := ""
pos := strings.LastIndex(line[:l], " ")
if pos < 0 {
pos = l - 1
suffix = "-\n"
}
if len(retline) != 0 {
retline += "\n" + prefix
}
retline += strings.TrimSpace(line[:pos]) + suffix
line = strings.TrimSpace(line[pos:])
}
if len(line) > 0 {
if len(retline) != 0 {
retline += "\n" + prefix
}
retline += line
}
if len(ret) > 0 {
ret += "\n"
if len(retline) > 0 {
ret += prefix
}
}
ret += retline
}
return ret
}
func (p *Parser) writeHelpOption(writer *bufio.Writer, option *Option, info alignmentInfo) {
line := &bytes.Buffer{}
prefix := paddingBeforeOption
if info.indent {
prefix += 4
}
if option.Hidden {
return
}
line.WriteString(strings.Repeat(" ", prefix))
if option.ShortName != 0 {
line.WriteRune(defaultShortOptDelimiter)
line.WriteRune(option.ShortName)
} else if info.hasShort {
line.WriteString(" ")
}
descstart := info.descriptionStart() + paddingBeforeOption
if len(option.LongName) > 0 {
if option.ShortName != 0 {
line.WriteString(", ")
} else if info.hasShort {
line.WriteString(" ")
}
line.WriteString(defaultLongOptDelimiter)
line.WriteString(option.LongNameWithNamespace())
}
if option.canArgument() {
line.WriteRune(defaultNameArgDelimiter)
if len(option.ValueName) > 0 {
line.WriteString(option.ValueName)
}
if len(option.Choices) > 0 {
line.WriteString("[" + strings.Join(option.Choices, "|") + "]")
}
}
written := line.Len()
line.WriteTo(writer)
if option.Description != "" {
dw := descstart - written
writer.WriteString(strings.Repeat(" ", dw))
var def string
if len(option.DefaultMask) != 0 && option.DefaultMask != "-" {
def = option.DefaultMask
} else {
def = option.defaultLiteral
}
var envDef string
if option.EnvDefaultKey != "" {
var envPrintable string
if runtime.GOOS == "windows" {
envPrintable = "%" + option.EnvDefaultKey + "%"
} else {
envPrintable = "$" + option.EnvDefaultKey
}
envDef = fmt.Sprintf(" [%s]", envPrintable)
}
var desc string
if def != "" {
desc = fmt.Sprintf("%s (default: %v)%s", option.Description, def, envDef)
} else {
desc = option.Description + envDef
}
writer.WriteString(wrapText(desc,
info.terminalColumns-descstart,
strings.Repeat(" ", descstart)))
}
writer.WriteString("\n")
}
func maxCommandLength(s []*Command) int {
if len(s) == 0 {
return 0
}
ret := len(s[0].Name)
for _, v := range s[1:] {
l := len(v.Name)
if l > ret {
ret = l
}
}
return ret
}
// WriteHelp writes a help message containing all the possible options and
// their descriptions to the provided writer. Note that the HelpFlag parser
// option provides a convenient way to add a -h/--help option group to the
// command line parser which will automatically show the help messages using
// this method.
func (p *Parser) WriteHelp(writer io.Writer) {
if writer == nil {
return
}
wr := bufio.NewWriter(writer)
aligninfo := p.getAlignmentInfo()
cmd := p.Command
for cmd.Active != nil {
cmd = cmd.Active
}
if p.Name != "" {
wr.WriteString("Usage:\n")
wr.WriteString(" ")
allcmd := p.Command
for allcmd != nil {
var usage string
if allcmd == p.Command {
if len(p.Usage) != 0 {
usage = p.Usage
} else if p.Options&HelpFlag != 0 {
usage = "[OPTIONS]"
}
} else if us, ok := allcmd.data.(Usage); ok {
usage = us.Usage()
} else if allcmd.hasCliOptions() {
usage = fmt.Sprintf("[%s-OPTIONS]", allcmd.Name)
}
if len(usage) != 0 {
fmt.Fprintf(wr, " %s %s", allcmd.Name, usage)
} else {
fmt.Fprintf(wr, " %s", allcmd.Name)
}
if len(allcmd.args) > 0 {
fmt.Fprintf(wr, " ")
}
for i, arg := range allcmd.args {
if i != 0 {
fmt.Fprintf(wr, " ")
}
name := arg.Name
if arg.isRemaining() {
name = name + "..."
}
if !allcmd.ArgsRequired {
fmt.Fprintf(wr, "[%s]", name)
} else {
fmt.Fprintf(wr, "%s", name)
}
}
if allcmd.Active == nil && len(allcmd.commands) > 0 {
var co, cc string
if allcmd.SubcommandsOptional {
co, cc = "[", "]"
} else {
co, cc = "<", ">"
}
visibleCommands := allcmd.visibleCommands()
if len(visibleCommands) > 3 {
fmt.Fprintf(wr, " %scommand%s", co, cc)
} else {
subcommands := allcmd.sortedVisibleCommands()
names := make([]string, len(subcommands))
for i, subc := range subcommands {
names[i] = subc.Name
}
fmt.Fprintf(wr, " %s%s%s", co, strings.Join(names, " | "), cc)
}
}
allcmd = allcmd.Active
}
fmt.Fprintln(wr)
if len(cmd.LongDescription) != 0 {
fmt.Fprintln(wr)
t := wrapText(cmd.LongDescription,
aligninfo.terminalColumns,
"")
fmt.Fprintln(wr, t)
}
}
c := p.Command
for c != nil {
printcmd := c != p.Command
c.eachGroup(func(grp *Group) {
first := true
// Skip built-in help group for all commands except the top-level
// parser
if grp.Hidden || (grp.isBuiltinHelp && c != p.Command) {
return
}
for _, info := range grp.options {
if !info.canCli() || info.Hidden {
continue
}
if printcmd {
fmt.Fprintf(wr, "\n[%s command options]\n", c.Name)
aligninfo.indent = true
printcmd = false
}
if first && cmd.Group != grp {
fmt.Fprintln(wr)
if aligninfo.indent {
wr.WriteString(" ")
}
fmt.Fprintf(wr, "%s:\n", grp.ShortDescription)
first = false
}
p.writeHelpOption(wr, info, aligninfo)
}
})
var args []*Arg
for _, arg := range c.args {
if arg.Description != "" {
args = append(args, arg)
}
}
if len(args) > 0 {
if c == p.Command {
fmt.Fprintf(wr, "\nArguments:\n")
} else {
fmt.Fprintf(wr, "\n[%s command arguments]\n", c.Name)
}
descStart := aligninfo.descriptionStart() + paddingBeforeOption
for _, arg := range args {
argPrefix := strings.Repeat(" ", paddingBeforeOption)
argPrefix += arg.Name
if len(arg.Description) > 0 {
argPrefix += ":"
wr.WriteString(argPrefix)
// Space between "arg:" and the description start
descPadding := strings.Repeat(" ", descStart-len(argPrefix))
// How much space the description gets before wrapping
descWidth := aligninfo.terminalColumns - 1 - descStart
// Whitespace to which we can indent new description lines
descPrefix := strings.Repeat(" ", descStart)
wr.WriteString(descPadding)
wr.WriteString(wrapText(arg.Description, descWidth, descPrefix))
} else {
wr.WriteString(argPrefix)
}
fmt.Fprintln(wr)
}
}
c = c.Active
}
scommands := cmd.sortedVisibleCommands()
if len(scommands) > 0 {
maxnamelen := maxCommandLength(scommands)
fmt.Fprintln(wr)
fmt.Fprintln(wr, "Available commands:")
for _, c := range scommands {
fmt.Fprintf(wr, " %s", c.Name)
if len(c.ShortDescription) > 0 {
pad := strings.Repeat(" ", maxnamelen-len(c.Name))
fmt.Fprintf(wr, "%s %s", pad, c.ShortDescription)
if len(c.Aliases) > 0 {
fmt.Fprintf(wr, " (aliases: %s)", strings.Join(c.Aliases, ", "))
}
}
fmt.Fprintln(wr)
}
}
wr.Flush()
}

468
vendor/src/github.com/jessevdk/go-flags/help_test.go vendored
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@ -1,468 +0,0 @@
package flags
import (
"bytes"
"fmt"
"os"
"runtime"
"testing"
"time"
)
type helpOptions struct {
Verbose []bool `short:"v" long:"verbose" description:"Show verbose debug information" ini-name:"verbose"`
Call func(string) `short:"c" description:"Call phone number" ini-name:"call"`
PtrSlice []*string `long:"ptrslice" description:"A slice of pointers to string"`
EmptyDescription bool `long:"empty-description"`
Default string `long:"default" default:"Some\nvalue" description:"Test default value"`
DefaultArray []string `long:"default-array" default:"Some value" default:"Other\tvalue" description:"Test default array value"`
DefaultMap map[string]string `long:"default-map" default:"some:value" default:"another:value" description:"Testdefault map value"`
EnvDefault1 string `long:"env-default1" default:"Some value" env:"ENV_DEFAULT" description:"Test env-default1 value"`
EnvDefault2 string `long:"env-default2" env:"ENV_DEFAULT" description:"Test env-default2 value"`
OptionWithArgName string `long:"opt-with-arg-name" value-name:"something" description:"Option with named argument"`
OptionWithChoices string `long:"opt-with-choices" value-name:"choice" choice:"dog" choice:"cat" description:"Option with choices"`
Hidden string `long:"hidden" description:"Hidden option" hidden:"yes"`
OnlyIni string `ini-name:"only-ini" description:"Option only available in ini"`
Other struct {
StringSlice []string `short:"s" default:"some" default:"value" description:"A slice of strings"`
IntMap map[string]int `long:"intmap" default:"a:1" description:"A map from string to int" ini-name:"int-map"`
} `group:"Other Options"`
HiddenGroup struct {
InsideHiddenGroup string `long:"inside-hidden-group" description:"Inside hidden group"`
} `group:"Hidden group" hidden:"yes"`
Group struct {
Opt string `long:"opt" description:"This is a subgroup option"`
HiddenInsideGroup string `long:"hidden-inside-group" description:"Hidden inside group" hidden:"yes"`
Group struct {
Opt string `long:"opt" description:"This is a subsubgroup option"`
} `group:"Subsubgroup" namespace:"sap"`
} `group:"Subgroup" namespace:"sip"`
Command struct {
ExtraVerbose []bool `long:"extra-verbose" description:"Use for extra verbosity"`
} `command:"command" alias:"cm" alias:"cmd" description:"A command"`
HiddenCommand struct {
ExtraVerbose []bool `long:"extra-verbose" description:"Use for extra verbosity"`
} `command:"hidden-command" description:"A hidden command" hidden:"yes"`
Args struct {
Filename string `positional-arg-name:"filename" description:"A filename with a long description to trigger line wrapping"`
Number int `positional-arg-name:"num" description:"A number"`
HiddenInHelp float32 `positional-arg-name:"hidden-in-help" required:"yes"`
} `positional-args:"yes"`
}
func TestHelp(t *testing.T) {
oldEnv := EnvSnapshot()
defer oldEnv.Restore()
os.Setenv("ENV_DEFAULT", "env-def")
var opts helpOptions
p := NewNamedParser("TestHelp", HelpFlag)
p.AddGroup("Application Options", "The application options", &opts)
_, err := p.ParseArgs([]string{"--help"})
if err == nil {
t.Fatalf("Expected help error")
}
if e, ok := err.(*Error); !ok {
t.Fatalf("Expected flags.Error, but got %T", err)
} else {
if e.Type != ErrHelp {
t.Errorf("Expected flags.ErrHelp type, but got %s", e.Type)
}
var expected string
if runtime.GOOS == "windows" {
expected = `Usage:
TestHelp [OPTIONS] [filename] [num] [hidden-in-help] <command>
Application Options:
/v, /verbose Show verbose debug information
/c: Call phone number
/ptrslice: A slice of pointers to string
/empty-description
/default: Test default value (default:
"Some\nvalue")
/default-array: Test default array value (default:
Some value, "Other\tvalue")
/default-map: Testdefault map value (default:
some:value, another:value)
/env-default1: Test env-default1 value (default:
Some value) [%ENV_DEFAULT%]
/env-default2: Test env-default2 value
[%ENV_DEFAULT%]
/opt-with-arg-name:something Option with named argument
/opt-with-choices:choice[dog|cat] Option with choices
Other Options:
/s: A slice of strings (default: some,
value)
/intmap: A map from string to int (default:
a:1)
Subgroup:
/sip.opt: This is a subgroup option
Subsubgroup:
/sip.sap.opt: This is a subsubgroup option
Help Options:
/? Show this help message
/h, /help Show this help message
Arguments:
filename: A filename
num: A number
Available commands:
command A command (aliases: cm, cmd)
`
} else {
expected = `Usage:
TestHelp [OPTIONS] [filename] [num] [hidden-in-help] <command>
Application Options:
-v, --verbose Show verbose debug information
-c= Call phone number
--ptrslice= A slice of pointers to string
--empty-description
--default= Test default value (default:
"Some\nvalue")
--default-array= Test default array value (default:
Some value, "Other\tvalue")
--default-map= Testdefault map value (default:
some:value, another:value)
--env-default1= Test env-default1 value (default:
Some value) [$ENV_DEFAULT]
--env-default2= Test env-default2 value
[$ENV_DEFAULT]
--opt-with-arg-name=something Option with named argument
--opt-with-choices=choice[dog|cat] Option with choices
Other Options:
-s= A slice of strings (default: some,
value)
--intmap= A map from string to int (default:
a:1)
Subgroup:
--sip.opt= This is a subgroup option
Subsubgroup:
--sip.sap.opt= This is a subsubgroup option
Help Options:
-h, --help Show this help message
Arguments:
filename: A filename with a long description
to trigger line wrapping
num: A number
Available commands:
command A command (aliases: cm, cmd)
`
}
assertDiff(t, e.Message, expected, "help message")
}
}
func TestMan(t *testing.T) {
oldEnv := EnvSnapshot()
defer oldEnv.Restore()
os.Setenv("ENV_DEFAULT", "env-def")
var opts helpOptions
p := NewNamedParser("TestMan", HelpFlag)
p.ShortDescription = "Test manpage generation"
p.LongDescription = "This is a somewhat `longer' description of what this does"
p.AddGroup("Application Options", "The application options", &opts)
p.Commands()[0].LongDescription = "Longer `command' description"
var buf bytes.Buffer
p.WriteManPage(&buf)
got := buf.String()
tt := time.Now()
var envDefaultName string
if runtime.GOOS == "windows" {
envDefaultName = "%ENV_DEFAULT%"
} else {
envDefaultName = "$ENV_DEFAULT"
}
expected := fmt.Sprintf(`.TH TestMan 1 "%s"
.SH NAME
TestMan \- Test manpage generation
.SH SYNOPSIS
\fBTestMan\fP [OPTIONS]
.SH DESCRIPTION
This is a somewhat \fBlonger\fP description of what this does
.SH OPTIONS
.SS Application Options
The application options
.TP
\fB\fB\-v\fR, \fB\-\-verbose\fR\fP
Show verbose debug information
.TP
\fB\fB\-c\fR\fP
Call phone number
.TP
\fB\fB\-\-ptrslice\fR\fP
A slice of pointers to string
.TP
\fB\fB\-\-empty-description\fR\fP
.TP
\fB\fB\-\-default\fR <default: \fI"Some\\nvalue"\fR>\fP
Test default value
.TP
\fB\fB\-\-default-array\fR <default: \fI"Some value", "Other\\tvalue"\fR>\fP
Test default array value
.TP
\fB\fB\-\-default-map\fR <default: \fI"some:value", "another:value"\fR>\fP
Testdefault map value
.TP
\fB\fB\-\-env-default1\fR <default: \fI"Some value"\fR>\fP
Test env-default1 value
.TP
\fB\fB\-\-env-default2\fR <default: \fI%s\fR>\fP
Test env-default2 value
.TP
\fB\fB\-\-opt-with-arg-name\fR \fIsomething\fR\fP
Option with named argument
.TP
\fB\fB\-\-opt-with-choices\fR \fIchoice\fR\fP
Option with choices
.SS Other Options
.TP
\fB\fB\-s\fR <default: \fI"some", "value"\fR>\fP
A slice of strings
.TP
\fB\fB\-\-intmap\fR <default: \fI"a:1"\fR>\fP
A map from string to int
.SS Subgroup
.TP
\fB\fB\-\-sip.opt\fR\fP
This is a subgroup option
.SS Subsubgroup
.TP
\fB\fB\-\-sip.sap.opt\fR\fP
This is a subsubgroup option
.SH COMMANDS
.SS command
A command
Longer \fBcommand\fP description
\fBUsage\fP: TestMan [OPTIONS] command [command-OPTIONS]
.TP
\fBAliases\fP: cm, cmd
.TP
\fB\fB\-\-extra-verbose\fR\fP
Use for extra verbosity
`, tt.Format("2 January 2006"), envDefaultName)
assertDiff(t, got, expected, "man page")
}
type helpCommandNoOptions struct {
Command struct {
} `command:"command" description:"A command"`
}
func TestHelpCommand(t *testing.T) {
oldEnv := EnvSnapshot()
defer oldEnv.Restore()
os.Setenv("ENV_DEFAULT", "env-def")
var opts helpCommandNoOptions
p := NewNamedParser("TestHelpCommand", HelpFlag)
p.AddGroup("Application Options", "The application options", &opts)
_, err := p.ParseArgs([]string{"command", "--help"})
if err == nil {
t.Fatalf("Expected help error")
}
if e, ok := err.(*Error); !ok {
t.Fatalf("Expected flags.Error, but got %T", err)
} else {
if e.Type != ErrHelp {
t.Errorf("Expected flags.ErrHelp type, but got %s", e.Type)
}
var expected string
if runtime.GOOS == "windows" {
expected = `Usage:
TestHelpCommand [OPTIONS] command
Help Options:
/? Show this help message
/h, /help Show this help message
`
} else {
expected = `Usage:
TestHelpCommand [OPTIONS] command
Help Options:
-h, --help Show this help message
`
}
assertDiff(t, e.Message, expected, "help message")
}
}
func TestHelpDefaults(t *testing.T) {
var expected string
if runtime.GOOS == "windows" {
expected = `Usage:
TestHelpDefaults [OPTIONS]
Application Options:
/with-default: With default (default: default-value)
/without-default: Without default
/with-programmatic-default: With programmatic default (default:
default-value)
Help Options:
/? Show this help message
/h, /help Show this help message
`
} else {
expected = `Usage:
TestHelpDefaults [OPTIONS]
Application Options:
--with-default= With default (default: default-value)
--without-default= Without default
--with-programmatic-default= With programmatic default (default:
default-value)
Help Options:
-h, --help Show this help message
`
}
tests := []struct {
Args []string
Output string
}{
{
Args: []string{"-h"},
Output: expected,
},
{
Args: []string{"--with-default", "other-value", "--with-programmatic-default", "other-value", "-h"},
Output: expected,
},
}
for _, test := range tests {
var opts struct {
WithDefault string `long:"with-default" default:"default-value" description:"With default"`
WithoutDefault string `long:"without-default" description:"Without default"`
WithProgrammaticDefault string `long:"with-programmatic-default" description:"With programmatic default"`
}
opts.WithProgrammaticDefault = "default-value"
p := NewNamedParser("TestHelpDefaults", HelpFlag)
p.AddGroup("Application Options", "The application options", &opts)
_, err := p.ParseArgs(test.Args)
if err == nil {
t.Fatalf("Expected help error")
}
if e, ok := err.(*Error); !ok {
t.Fatalf("Expected flags.Error, but got %T", err)
} else {
if e.Type != ErrHelp {
t.Errorf("Expected flags.ErrHelp type, but got %s", e.Type)
}
assertDiff(t, e.Message, test.Output, "help message")
}
}
}
func TestHelpRestArgs(t *testing.T) {
opts := struct {
Verbose bool `short:"v"`
}{}
p := NewNamedParser("TestHelpDefaults", HelpFlag)
p.AddGroup("Application Options", "The application options", &opts)
retargs, err := p.ParseArgs([]string{"-h", "-v", "rest"})
if err == nil {
t.Fatalf("Expected help error")
}
assertStringArray(t, retargs, []string{"-v", "rest"})
}
func TestWrapText(t *testing.T) {
s := "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."
got := wrapText(s, 60, " ")
expected := `Lorem ipsum dolor sit amet, consectetur adipisicing elit,
sed do eiusmod tempor incididunt ut labore et dolore magna
aliqua. Ut enim ad minim veniam, quis nostrud exercitation
ullamco laboris nisi ut aliquip ex ea commodo consequat.
Duis aute irure dolor in reprehenderit in voluptate velit
esse cillum dolore eu fugiat nulla pariatur. Excepteur sint
occaecat cupidatat non proident, sunt in culpa qui officia
deserunt mollit anim id est laborum.`
assertDiff(t, got, expected, "wrapped text")
}
func TestWrapParagraph(t *testing.T) {
s := "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.\n\n"
s += "Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.\n\n"
s += "Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.\n\n"
s += "Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.\n"
got := wrapText(s, 60, " ")
expected := `Lorem ipsum dolor sit amet, consectetur adipisicing elit,
sed do eiusmod tempor incididunt ut labore et dolore magna
aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco
laboris nisi ut aliquip ex ea commodo consequat.
Duis aute irure dolor in reprehenderit in voluptate velit
esse cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in
culpa qui officia deserunt mollit anim id est laborum.
`
assertDiff(t, got, expected, "wrapped paragraph")
}

601
vendor/src/github.com/jessevdk/go-flags/ini.go vendored
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@ -1,601 +0,0 @@
package flags
import (
"bufio"
"fmt"
"io"
"os"
"reflect"
"sort"
"strconv"
"strings"
)
// IniError contains location information on where an error occured.
type IniError struct {
// The error message.
Message string
// The filename of the file in which the error occurred.
File string
// The line number at which the error occurred.
LineNumber uint
}
// Error provides a "file:line: message" formatted message of the ini error.
func (x *IniError) Error() string {
return fmt.Sprintf(
"%s:%d: %s",
x.File,
x.LineNumber,
x.Message,
)
}
// IniOptions for writing
type IniOptions uint
const (
// IniNone indicates no options.
IniNone IniOptions = 0
// IniIncludeDefaults indicates that default values should be written.
IniIncludeDefaults = 1 << iota
// IniCommentDefaults indicates that if IniIncludeDefaults is used
// options with default values are written but commented out.
IniCommentDefaults
// IniIncludeComments indicates that comments containing the description
// of an option should be written.
IniIncludeComments
// IniDefault provides a default set of options.
IniDefault = IniIncludeComments
)
// IniParser is a utility to read and write flags options from and to ini
// formatted strings.
type IniParser struct {
ParseAsDefaults bool // override default flags
parser *Parser
}
type iniValue struct {
Name string
Value string
Quoted bool
LineNumber uint
}
type iniSection []iniValue
type ini struct {
File string
Sections map[string]iniSection
}
// NewIniParser creates a new ini parser for a given Parser.
func NewIniParser(p *Parser) *IniParser {
return &IniParser{
parser: p,
}
}
// IniParse is a convenience function to parse command line options with default
// settings from an ini formatted file. The provided data is a pointer to a struct
// representing the default option group (named "Application Options"). For
// more control, use flags.NewParser.
func IniParse(filename string, data interface{}) error {
p := NewParser(data, Default)
return NewIniParser(p).ParseFile(filename)
}
// ParseFile parses flags from an ini formatted file. See Parse for more
// information on the ini file format. The returned errors can be of the type
// flags.Error or flags.IniError.
func (i *IniParser) ParseFile(filename string) error {
i.parser.clearIsSet()
ini, err := readIniFromFile(filename)
if err != nil {
return err
}
return i.parse(ini)
}
// Parse parses flags from an ini format. You can use ParseFile as a
// convenience function to parse from a filename instead of a general
// io.Reader.
//
// The format of the ini file is as follows:
//
// [Option group name]
// option = value
//
// Each section in the ini file represents an option group or command in the
// flags parser. The default flags parser option group (i.e. when using
// flags.Parse) is named 'Application Options'. The ini option name is matched
// in the following order:
//
// 1. Compared to the ini-name tag on the option struct field (if present)
// 2. Compared to the struct field name
// 3. Compared to the option long name (if present)
// 4. Compared to the option short name (if present)
//
// Sections for nested groups and commands can be addressed using a dot `.'
// namespacing notation (i.e [subcommand.Options]). Group section names are
// matched case insensitive.
//
// The returned errors can be of the type flags.Error or flags.IniError.
func (i *IniParser) Parse(reader io.Reader) error {
i.parser.clearIsSet()
ini, err := readIni(reader, "")
if err != nil {
return err
}
return i.parse(ini)
}
// WriteFile writes the flags as ini format into a file. See Write
// for more information. The returned error occurs when the specified file
// could not be opened for writing.
func (i *IniParser) WriteFile(filename string, options IniOptions) error {
return writeIniToFile(i, filename, options)
}
// Write writes the current values of all the flags to an ini format.
// See Parse for more information on the ini file format. You typically
// call this only after settings have been parsed since the default values of each
// option are stored just before parsing the flags (this is only relevant when
// IniIncludeDefaults is _not_ set in options).
func (i *IniParser) Write(writer io.Writer, options IniOptions) {
writeIni(i, writer, options)
}
func readFullLine(reader *bufio.Reader) (string, error) {
var line []byte
for {
l, more, err := reader.ReadLine()
if err != nil {
return "", err
}
if line == nil && !more {
return string(l), nil
}
line = append(line, l...)
if !more {
break
}
}
return string(line), nil
}
func optionIniName(option *Option) string {
name := option.tag.Get("_read-ini-name")
if len(name) != 0 {
return name
}
name = option.tag.Get("ini-name")
if len(name) != 0 {
return name
}
return option.field.Name
}
func writeGroupIni(cmd *Command, group *Group, namespace string, writer io.Writer, options IniOptions) {
var sname string
if len(namespace) != 0 {
sname = namespace
}
if cmd.Group != group && len(group.ShortDescription) != 0 {
if len(sname) != 0 {
sname += "."
}
sname += group.ShortDescription
}
sectionwritten := false
comments := (options & IniIncludeComments) != IniNone
for _, option := range group.options {
if option.isFunc() || option.Hidden {
continue
}
if len(option.tag.Get("no-ini")) != 0 {
continue
}
val := option.value
if (options&IniIncludeDefaults) == IniNone && option.valueIsDefault() {
continue
}
if !sectionwritten {
fmt.Fprintf(writer, "[%s]\n", sname)
sectionwritten = true
}
if comments && len(option.Description) != 0 {
fmt.Fprintf(writer, "; %s\n", option.Description)
}
oname := optionIniName(option)
commentOption := (options&(IniIncludeDefaults|IniCommentDefaults)) == IniIncludeDefaults|IniCommentDefaults && option.valueIsDefault()
kind := val.Type().Kind()
switch kind {
case reflect.Slice:
kind = val.Type().Elem().Kind()
if val.Len() == 0 {
writeOption(writer, oname, kind, "", "", true, option.iniQuote)
} else {
for idx := 0; idx < val.Len(); idx++ {
v, _ := convertToString(val.Index(idx), option.tag)
writeOption(writer, oname, kind, "", v, commentOption, option.iniQuote)
}
}
case reflect.Map:
kind = val.Type().Elem().Kind()
if val.Len() == 0 {
writeOption(writer, oname, kind, "", "", true, option.iniQuote)
} else {
mkeys := val.MapKeys()
keys := make([]string, len(val.MapKeys()))
kkmap := make(map[string]reflect.Value)
for i, k := range mkeys {
keys[i], _ = convertToString(k, option.tag)
kkmap[keys[i]] = k
}
sort.Strings(keys)
for _, k := range keys {
v, _ := convertToString(val.MapIndex(kkmap[k]), option.tag)
writeOption(writer, oname, kind, k, v, commentOption, option.iniQuote)
}
}
default:
v, _ := convertToString(val, option.tag)
writeOption(writer, oname, kind, "", v, commentOption, option.iniQuote)
}
if comments {
fmt.Fprintln(writer)
}
}
if sectionwritten && !comments {
fmt.Fprintln(writer)
}
}
func writeOption(writer io.Writer, optionName string, optionType reflect.Kind, optionKey string, optionValue string, commentOption bool, forceQuote bool) {
if forceQuote || (optionType == reflect.String && !isPrint(optionValue)) {
optionValue = strconv.Quote(optionValue)
}
comment := ""
if commentOption {
comment = "; "
}
fmt.Fprintf(writer, "%s%s =", comment, optionName)
if optionKey != "" {
fmt.Fprintf(writer, " %s:%s", optionKey, optionValue)
} else if optionValue != "" {
fmt.Fprintf(writer, " %s", optionValue)
}
fmt.Fprintln(writer)
}
func writeCommandIni(command *Command, namespace string, writer io.Writer, options IniOptions) {
command.eachGroup(func(group *Group) {
if !group.Hidden {
writeGroupIni(command, group, namespace, writer, options)
}
})
for _, c := range command.commands {
var nns string
if c.Hidden {
continue
}
if len(namespace) != 0 {
nns = c.Name + "." + nns
} else {
nns = c.Name
}
writeCommandIni(c, nns, writer, options)
}
}
func writeIni(parser *IniParser, writer io.Writer, options IniOptions) {
writeCommandIni(parser.parser.Command, "", writer, options)
}
func writeIniToFile(parser *IniParser, filename string, options IniOptions) error {
file, err := os.Create(filename)
if err != nil {
return err
}
defer file.Close()
writeIni(parser, file, options)
return nil
}
func readIniFromFile(filename string) (*ini, error) {
file, err := os.Open(filename)
if err != nil {
return nil, err
}
defer file.Close()
return readIni(file, filename)
}
func readIni(contents io.Reader, filename string) (*ini, error) {
ret := &ini{
File: filename,
Sections: make(map[string]iniSection),
}
reader := bufio.NewReader(contents)
// Empty global section
section := make(iniSection, 0, 10)
sectionname := ""
ret.Sections[sectionname] = section
var lineno uint
for {
line, err := readFullLine(reader)
if err == io.EOF {
break
} else if err != nil {
return nil, err
}
lineno++
line = strings.TrimSpace(line)
// Skip empty lines and lines starting with ; (comments)
if len(line) == 0 || line[0] == ';' || line[0] == '#' {
continue
}
if line[0] == '[' {
if line[0] != '[' || line[len(line)-1] != ']' {
return nil, &IniError{
Message: "malformed section header",
File: filename,
LineNumber: lineno,
}
}
name := strings.TrimSpace(line[1 : len(line)-1])
if len(name) == 0 {
return nil, &IniError{
Message: "empty section name",
File: filename,
LineNumber: lineno,
}
}
sectionname = name
section = ret.Sections[name]
if section == nil {
section = make(iniSection, 0, 10)
ret.Sections[name] = section
}
continue
}
// Parse option here
keyval := strings.SplitN(line, "=", 2)
if len(keyval) != 2 {
return nil, &IniError{
Message: fmt.Sprintf("malformed key=value (%s)", line),
File: filename,
LineNumber: lineno,
}
}
name := strings.TrimSpace(keyval[0])
value := strings.TrimSpace(keyval[1])
quoted := false
if len(value) != 0 && value[0] == '"' {
if v, err := strconv.Unquote(value); err == nil {
value = v
quoted = true
} else {
return nil, &IniError{
Message: err.Error(),
File: filename,
LineNumber: lineno,
}
}
}
section = append(section, iniValue{
Name: name,
Value: value,
Quoted: quoted,
LineNumber: lineno,
})
ret.Sections[sectionname] = section
}
return ret, nil
}
func (i *IniParser) matchingGroups(name string) []*Group {
if len(name) == 0 {
var ret []*Group
i.parser.eachGroup(func(g *Group) {
ret = append(ret, g)
})
return ret
}
g := i.parser.groupByName(name)
if g != nil {
return []*Group{g}
}
return nil
}
func (i *IniParser) parse(ini *ini) error {
p := i.parser
var quotesLookup = make(map[*Option]bool)
for name, section := range ini.Sections {
groups := i.matchingGroups(name)
if len(groups) == 0 {
return newErrorf(ErrUnknownGroup, "could not find option group `%s'", name)
}
for _, inival := range section {
var opt *Option
for _, group := range groups {
opt = group.optionByName(inival.Name, func(o *Option, n string) bool {
return strings.ToLower(o.tag.Get("ini-name")) == strings.ToLower(n)
})
if opt != nil && len(opt.tag.Get("no-ini")) != 0 {
opt = nil
}
if opt != nil {
break
}
}
if opt == nil {
if (p.Options & IgnoreUnknown) == None {
return &IniError{
Message: fmt.Sprintf("unknown option: %s", inival.Name),
File: ini.File,
LineNumber: inival.LineNumber,
}
}
continue
}
// ini value is ignored if override is set and
// value was previously set from non default
if i.ParseAsDefaults && !opt.isSetDefault {
continue
}
pval := &inival.Value
if !opt.canArgument() && len(inival.Value) == 0 {
pval = nil
} else {
if opt.value.Type().Kind() == reflect.Map {
parts := strings.SplitN(inival.Value, ":", 2)
// only handle unquoting
if len(parts) == 2 && parts[1][0] == '"' {
if v, err := strconv.Unquote(parts[1]); err == nil {
parts[1] = v
inival.Quoted = true
} else {
return &IniError{
Message: err.Error(),
File: ini.File,
LineNumber: inival.LineNumber,
}
}
s := parts[0] + ":" + parts[1]
pval = &s
}
}
}
if err := opt.set(pval); err != nil {
return &IniError{
Message: err.Error(),
File: ini.File,
LineNumber: inival.LineNumber,
}
}
// either all INI values are quoted or only values who need quoting
if _, ok := quotesLookup[opt]; !inival.Quoted || !ok {
quotesLookup[opt] = inival.Quoted
}
opt.tag.Set("_read-ini-name", inival.Name)
}
}
for opt, quoted := range quotesLookup {
opt.iniQuote = quoted
}
return nil
}

1021
vendor/src/github.com/jessevdk/go-flags/ini_test.go vendored
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File diff suppressed because it is too large Load diff

85
vendor/src/github.com/jessevdk/go-flags/long_test.go vendored
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@ -1,85 +0,0 @@
package flags
import (
"testing"
)
func TestLong(t *testing.T) {
var opts = struct {
Value bool `long:"value"`
}{}
ret := assertParseSuccess(t, &opts, "--value")
assertStringArray(t, ret, []string{})
if !opts.Value {
t.Errorf("Expected Value to be true")
}
}
func TestLongArg(t *testing.T) {
var opts = struct {
Value string `long:"value"`
}{}
ret := assertParseSuccess(t, &opts, "--value", "value")
assertStringArray(t, ret, []string{})
assertString(t, opts.Value, "value")
}
func TestLongArgEqual(t *testing.T) {
var opts = struct {
Value string `long:"value"`
}{}
ret := assertParseSuccess(t, &opts, "--value=value")
assertStringArray(t, ret, []string{})
assertString(t, opts.Value, "value")
}
func TestLongDefault(t *testing.T) {
var opts = struct {
Value string `long:"value" default:"value"`
}{}
ret := assertParseSuccess(t, &opts)
assertStringArray(t, ret, []string{})
assertString(t, opts.Value, "value")
}
func TestLongOptional(t *testing.T) {
var opts = struct {
Value string `long:"value" optional:"yes" optional-value:"value"`
}{}
ret := assertParseSuccess(t, &opts, "--value")
assertStringArray(t, ret, []string{})
assertString(t, opts.Value, "value")
}
func TestLongOptionalArg(t *testing.T) {
var opts = struct {
Value string `long:"value" optional:"yes" optional-value:"value"`
}{}
ret := assertParseSuccess(t, &opts, "--value", "no")
assertStringArray(t, ret, []string{"no"})
assertString(t, opts.Value, "value")
}
func TestLongOptionalArgEqual(t *testing.T) {
var opts = struct {
Value string `long:"value" optional:"yes" optional-value:"value"`
}{}
ret := assertParseSuccess(t, &opts, "--value=value", "no")
assertStringArray(t, ret, []string{"no"})
assertString(t, opts.Value, "value")
}

205
vendor/src/github.com/jessevdk/go-flags/man.go vendored
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@ -1,205 +0,0 @@
package flags
import (
"fmt"
"io"
"runtime"
"strings"
"time"
)
func manQuote(s string) string {
return strings.Replace(s, "\\", "\\\\", -1)
}
func formatForMan(wr io.Writer, s string) {
for {
idx := strings.IndexRune(s, '`')
if idx < 0 {
fmt.Fprintf(wr, "%s", manQuote(s))
break
}
fmt.Fprintf(wr, "%s", manQuote(s[:idx]))
s = s[idx+1:]
idx = strings.IndexRune(s, '\'')
if idx < 0 {
fmt.Fprintf(wr, "%s", manQuote(s))
break
}
fmt.Fprintf(wr, "\\fB%s\\fP", manQuote(s[:idx]))
s = s[idx+1:]
}
}
func writeManPageOptions(wr io.Writer, grp *Group) {
grp.eachGroup(func(group *Group) {
if group.Hidden || len(group.options) == 0 {
return
}
// If the parent (grp) has any subgroups, display their descriptions as
// subsection headers similar to the output of --help.
if group.ShortDescription != "" && len(grp.groups) > 0 {
fmt.Fprintf(wr, ".SS %s\n", group.ShortDescription)
if group.LongDescription != "" {
formatForMan(wr, group.LongDescription)
fmt.Fprintln(wr, "")
}
}
for _, opt := range group.options {
if !opt.canCli() || opt.Hidden {
continue
}
fmt.Fprintln(wr, ".TP")
fmt.Fprintf(wr, "\\fB")
if opt.ShortName != 0 {
fmt.Fprintf(wr, "\\fB\\-%c\\fR", opt.ShortName)
}
if len(opt.LongName) != 0 {
if opt.ShortName != 0 {
fmt.Fprintf(wr, ", ")
}
fmt.Fprintf(wr, "\\fB\\-\\-%s\\fR", manQuote(opt.LongNameWithNamespace()))
}
if len(opt.ValueName) != 0 || opt.OptionalArgument {
if opt.OptionalArgument {
fmt.Fprintf(wr, " [\\fI%s=%s\\fR]", manQuote(opt.ValueName), manQuote(strings.Join(quoteV(opt.OptionalValue), ", ")))
} else {
fmt.Fprintf(wr, " \\fI%s\\fR", manQuote(opt.ValueName))
}
}
if len(opt.Default) != 0 {
fmt.Fprintf(wr, " <default: \\fI%s\\fR>", manQuote(strings.Join(quoteV(opt.Default), ", ")))
} else if len(opt.EnvDefaultKey) != 0 {
if runtime.GOOS == "windows" {
fmt.Fprintf(wr, " <default: \\fI%%%s%%\\fR>", manQuote(opt.EnvDefaultKey))
} else {
fmt.Fprintf(wr, " <default: \\fI$%s\\fR>", manQuote(opt.EnvDefaultKey))
}
}
if opt.Required {
fmt.Fprintf(wr, " (\\fIrequired\\fR)")
}
fmt.Fprintln(wr, "\\fP")
if len(opt.Description) != 0 {
formatForMan(wr, opt.Description)
fmt.Fprintln(wr, "")
}
}
})
}
func writeManPageSubcommands(wr io.Writer, name string, root *Command) {
commands := root.sortedVisibleCommands()
for _, c := range commands {
var nn string
if c.Hidden {
continue
}
if len(name) != 0 {
nn = name + " " + c.Name
} else {
nn = c.Name
}
writeManPageCommand(wr, nn, root, c)
}
}
func writeManPageCommand(wr io.Writer, name string, root *Command, command *Command) {
fmt.Fprintf(wr, ".SS %s\n", name)
fmt.Fprintln(wr, command.ShortDescription)
if len(command.LongDescription) > 0 {
fmt.Fprintln(wr, "")
cmdstart := fmt.Sprintf("The %s command", manQuote(command.Name))
if strings.HasPrefix(command.LongDescription, cmdstart) {
fmt.Fprintf(wr, "The \\fI%s\\fP command", manQuote(command.Name))
formatForMan(wr, command.LongDescription[len(cmdstart):])
fmt.Fprintln(wr, "")
} else {
formatForMan(wr, command.LongDescription)
fmt.Fprintln(wr, "")
}
}
var usage string
if us, ok := command.data.(Usage); ok {
usage = us.Usage()
} else if command.hasCliOptions() {
usage = fmt.Sprintf("[%s-OPTIONS]", command.Name)
}
var pre string
if root.hasCliOptions() {
pre = fmt.Sprintf("%s [OPTIONS] %s", root.Name, command.Name)
} else {
pre = fmt.Sprintf("%s %s", root.Name, command.Name)
}
if len(usage) > 0 {
fmt.Fprintf(wr, "\n\\fBUsage\\fP: %s %s\n.TP\n", manQuote(pre), manQuote(usage))
}
if len(command.Aliases) > 0 {
fmt.Fprintf(wr, "\n\\fBAliases\\fP: %s\n\n", manQuote(strings.Join(command.Aliases, ", ")))
}
writeManPageOptions(wr, command.Group)
writeManPageSubcommands(wr, name, command)
}
// WriteManPage writes a basic man page in groff format to the specified
// writer.
func (p *Parser) WriteManPage(wr io.Writer) {
t := time.Now()
fmt.Fprintf(wr, ".TH %s 1 \"%s\"\n", manQuote(p.Name), t.Format("2 January 2006"))
fmt.Fprintln(wr, ".SH NAME")
fmt.Fprintf(wr, "%s \\- %s\n", manQuote(p.Name), manQuote(p.ShortDescription))
fmt.Fprintln(wr, ".SH SYNOPSIS")
usage := p.Usage
if len(usage) == 0 {
usage = "[OPTIONS]"
}
fmt.Fprintf(wr, "\\fB%s\\fP %s\n", manQuote(p.Name), manQuote(usage))
fmt.Fprintln(wr, ".SH DESCRIPTION")
formatForMan(wr, p.LongDescription)
fmt.Fprintln(wr, "")
fmt.Fprintln(wr, ".SH OPTIONS")
writeManPageOptions(wr, p.Command.Group)
if len(p.visibleCommands()) > 0 {
fmt.Fprintln(wr, ".SH COMMANDS")
writeManPageSubcommands(wr, "", p.Command)
}
}

119
vendor/src/github.com/jessevdk/go-flags/marshal_test.go vendored
View file

@ -1,119 +0,0 @@
package flags
import (
"fmt"
"testing"
)
type marshalled string
func (m *marshalled) UnmarshalFlag(value string) error {
if value == "yes" {
*m = "true"
} else if value == "no" {
*m = "false"
} else {
return fmt.Errorf("`%s' is not a valid value, please specify `yes' or `no'", value)
}
return nil
}
func (m marshalled) MarshalFlag() (string, error) {
if m == "true" {
return "yes", nil
}
return "no", nil
}
type marshalledError bool
func (m marshalledError) MarshalFlag() (string, error) {
return "", newErrorf(ErrMarshal, "Failed to marshal")
}
func TestUnmarshal(t *testing.T) {
var opts = struct {
Value marshalled `short:"v"`
}{}
ret := assertParseSuccess(t, &opts, "-v=yes")
assertStringArray(t, ret, []string{})
if opts.Value != "true" {
t.Errorf("Expected Value to be \"true\"")
}
}
func TestUnmarshalDefault(t *testing.T) {
var opts = struct {
Value marshalled `short:"v" default:"yes"`
}{}
ret := assertParseSuccess(t, &opts)
assertStringArray(t, ret, []string{})
if opts.Value != "true" {
t.Errorf("Expected Value to be \"true\"")
}
}
func TestUnmarshalOptional(t *testing.T) {
var opts = struct {
Value marshalled `short:"v" optional:"yes" optional-value:"yes"`
}{}
ret := assertParseSuccess(t, &opts, "-v")
assertStringArray(t, ret, []string{})
if opts.Value != "true" {
t.Errorf("Expected Value to be \"true\"")
}
}
func TestUnmarshalError(t *testing.T) {
var opts = struct {
Value marshalled `short:"v"`
}{}
assertParseFail(t, ErrMarshal, fmt.Sprintf("invalid argument for flag `%cv' (expected flags.marshalled): `invalid' is not a valid value, please specify `yes' or `no'", defaultShortOptDelimiter), &opts, "-vinvalid")
}
func TestUnmarshalPositionalError(t *testing.T) {
var opts = struct {
Args struct {
Value marshalled
} `positional-args:"yes"`
}{}
parser := NewParser(&opts, Default&^PrintErrors)
_, err := parser.ParseArgs([]string{"invalid"})
msg := "`invalid' is not a valid value, please specify `yes' or `no'"
if err == nil {
assertFatalf(t, "Expected error: %s", msg)
return
}
if err.Error() != msg {
assertErrorf(t, "Expected error message %#v, but got %#v", msg, err.Error())
}
}
func TestMarshalError(t *testing.T) {
var opts = struct {
Value marshalledError `short:"v"`
}{}
p := NewParser(&opts, Default)
o := p.Command.Groups()[0].Options()[0]
_, err := convertToString(o.value, o.tag)
assertError(t, err, ErrMarshal, "Failed to marshal")
}

140
vendor/src/github.com/jessevdk/go-flags/multitag.go vendored
View file

@ -1,140 +0,0 @@
package flags
import (
"strconv"
)
type multiTag struct {
value string
cache map[string][]string
}
func newMultiTag(v string) multiTag {
return multiTag{
value: v,
}
}
func (x *multiTag) scan() (map[string][]string, error) {
v := x.value
ret := make(map[string][]string)
// This is mostly copied from reflect.StructTag.Get
for v != "" {
i := 0
// Skip whitespace
for i < len(v) && v[i] == ' ' {
i++
}
v = v[i:]
if v == "" {
break
}
// Scan to colon to find key
i = 0
for i < len(v) && v[i] != ' ' && v[i] != ':' && v[i] != '"' {
i++
}
if i >= len(v) {
return nil, newErrorf(ErrTag, "expected `:' after key name, but got end of tag (in `%v`)", x.value)
}
if v[i] != ':' {
return nil, newErrorf(ErrTag, "expected `:' after key name, but got `%v' (in `%v`)", v[i], x.value)
}
if i+1 >= len(v) {
return nil, newErrorf(ErrTag, "expected `\"' to start tag value at end of tag (in `%v`)", x.value)
}
if v[i+1] != '"' {
return nil, newErrorf(ErrTag, "expected `\"' to start tag value, but got `%v' (in `%v`)", v[i+1], x.value)
}
name := v[:i]
v = v[i+1:]
// Scan quoted string to find value
i = 1
for i < len(v) && v[i] != '"' {
if v[i] == '\n' {
return nil, newErrorf(ErrTag, "unexpected newline in tag value `%v' (in `%v`)", name, x.value)
}
if v[i] == '\\' {
i++
}
i++
}
if i >= len(v) {
return nil, newErrorf(ErrTag, "expected end of tag value `\"' at end of tag (in `%v`)", x.value)
}
val, err := strconv.Unquote(v[:i+1])
if err != nil {
return nil, newErrorf(ErrTag, "Malformed value of tag `%v:%v` => %v (in `%v`)", name, v[:i+1], err, x.value)
}
v = v[i+1:]
ret[name] = append(ret[name], val)
}
return ret, nil
}
func (x *multiTag) Parse() error {
vals, err := x.scan()
x.cache = vals
return err
}
func (x *multiTag) cached() map[string][]string {
if x.cache == nil {
cache, _ := x.scan()
if cache == nil {
cache = make(map[string][]string)
}
x.cache = cache
}
return x.cache
}
func (x *multiTag) Get(key string) string {
c := x.cached()
if v, ok := c[key]; ok {
return v[len(v)-1]
}
return ""
}
func (x *multiTag) GetMany(key string) []string {
c := x.cached()
return c[key]
}
func (x *multiTag) Set(key string, value string) {
c := x.cached()
c[key] = []string{value}
}
func (x *multiTag) SetMany(key string, value []string) {
c := x.cached()
c[key] = value
}

456
vendor/src/github.com/jessevdk/go-flags/option.go vendored
View file

@ -1,456 +0,0 @@
package flags
import (
"bytes"
"fmt"
"reflect"
"strings"
"syscall"
"unicode/utf8"
)
// Option flag information. Contains a description of the option, short and
// long name as well as a default value and whether an argument for this
// flag is optional.
type Option struct {
// The description of the option flag. This description is shown
// automatically in the built-in help.
Description string
// The short name of the option (a single character). If not 0, the
// option flag can be 'activated' using -<ShortName>. Either ShortName
// or LongName needs to be non-empty.
ShortName rune
// The long name of the option. If not "", the option flag can be
// activated using --<LongName>. Either ShortName or LongName needs
// to be non-empty.
LongName string
// The default value of the option.
Default []string
// The optional environment default value key name.
EnvDefaultKey string
// The optional delimiter string for EnvDefaultKey values.
EnvDefaultDelim string
// If true, specifies that the argument to an option flag is optional.
// When no argument to the flag is specified on the command line, the
// value of OptionalValue will be set in the field this option represents.
// This is only valid for non-boolean options.
OptionalArgument bool
// The optional value of the option. The optional value is used when
// the option flag is marked as having an OptionalArgument. This means
// that when the flag is specified, but no option argument is given,
// the value of the field this option represents will be set to
// OptionalValue. This is only valid for non-boolean options.
OptionalValue []string
// If true, the option _must_ be specified on the command line. If the
// option is not specified, the parser will generate an ErrRequired type
// error.
Required bool
// A name for the value of an option shown in the Help as --flag [ValueName]
ValueName string
// A mask value to show in the help instead of the default value. This
// is useful for hiding sensitive information in the help, such as
// passwords.
DefaultMask string
// If non empty, only a certain set of values is allowed for an option.
Choices []string
// If true, the option is not displayed in the help or man page
Hidden bool
// The group which the option belongs to
group *Group
// The struct field which the option represents.
field reflect.StructField
// The struct field value which the option represents.
value reflect.Value
// Determines if the option will be always quoted in the INI output
iniQuote bool
tag multiTag
isSet bool
isSetDefault bool
preventDefault bool
defaultLiteral string
}
// LongNameWithNamespace returns the option's long name with the group namespaces
// prepended by walking up the option's group tree. Namespaces and the long name
// itself are separated by the parser's namespace delimiter. If the long name is
// empty an empty string is returned.
func (option *Option) LongNameWithNamespace() string {
if len(option.LongName) == 0 {
return ""
}
// fetch the namespace delimiter from the parser which is always at the
// end of the group hierarchy
namespaceDelimiter := ""
g := option.group
for {
if p, ok := g.parent.(*Parser); ok {
namespaceDelimiter = p.NamespaceDelimiter
break
}
switch i := g.parent.(type) {
case *Command:
g = i.Group
case *Group:
g = i
}
}
// concatenate long name with namespace
longName := option.LongName
g = option.group
for g != nil {
if g.Namespace != "" {
longName = g.Namespace + namespaceDelimiter + longName
}
switch i := g.parent.(type) {
case *Command:
g = i.Group
case *Group:
g = i
case *Parser:
g = nil
}
}
return longName
}
// String converts an option to a human friendly readable string describing the
// option.
func (option *Option) String() string {
var s string
var short string
if option.ShortName != 0 {
data := make([]byte, utf8.RuneLen(option.ShortName))
utf8.EncodeRune(data, option.ShortName)
short = string(data)
if len(option.LongName) != 0 {
s = fmt.Sprintf("%s%s, %s%s",
string(defaultShortOptDelimiter), short,
defaultLongOptDelimiter, option.LongNameWithNamespace())
} else {
s = fmt.Sprintf("%s%s", string(defaultShortOptDelimiter), short)
}
} else if len(option.LongName) != 0 {
s = fmt.Sprintf("%s%s", defaultLongOptDelimiter, option.LongNameWithNamespace())
}
return s
}
// Value returns the option value as an interface{}.
func (option *Option) Value() interface{} {
return option.value.Interface()
}
// Field returns the reflect struct field of the option.
func (option *Option) Field() reflect.StructField {
return option.field
}
// IsSet returns true if option has been set
func (option *Option) IsSet() bool {
return option.isSet
}
// Set the value of an option to the specified value. An error will be returned
// if the specified value could not be converted to the corresponding option
// value type.
func (option *Option) set(value *string) error {
kind := option.value.Type().Kind()
if (kind == reflect.Map || kind == reflect.Slice) && !option.isSet {
option.empty()
}
option.isSet = true
option.preventDefault = true
if len(option.Choices) != 0 {
found := false
for _, choice := range option.Choices {
if choice == *value {
found = true
break
}
}
if !found {
allowed := strings.Join(option.Choices[0:len(option.Choices)-1], ", ")
if len(option.Choices) > 1 {
allowed += " or " + option.Choices[len(option.Choices)-1]
}
return newErrorf(ErrInvalidChoice,
"Invalid value `%s' for option `%s'. Allowed values are: %s",
*value, option, allowed)
}
}
if option.isFunc() {
return option.call(value)
} else if value != nil {
return convert(*value, option.value, option.tag)
}
return convert("", option.value, option.tag)
}
func (option *Option) canCli() bool {
return option.ShortName != 0 || len(option.LongName) != 0
}
func (option *Option) canArgument() bool {
if u := option.isUnmarshaler(); u != nil {
return true
}
return !option.isBool()
}
func (option *Option) emptyValue() reflect.Value {
tp := option.value.Type()
if tp.Kind() == reflect.Map {
return reflect.MakeMap(tp)
}
return reflect.Zero(tp)
}
func (option *Option) empty() {
if !option.isFunc() {
option.value.Set(option.emptyValue())
}
}
func (option *Option) clearDefault() {
usedDefault := option.Default
if envKey := option.EnvDefaultKey; envKey != "" {
// os.Getenv() makes no distinction between undefined and
// empty values, so we use syscall.Getenv()
if value, ok := syscall.Getenv(envKey); ok {
if option.EnvDefaultDelim != "" {
usedDefault = strings.Split(value,
option.EnvDefaultDelim)
} else {
usedDefault = []string{value}
}
}
}
option.isSetDefault = true
if len(usedDefault) > 0 {
option.empty()
for _, d := range usedDefault {
option.set(&d)
option.isSetDefault = true
}
} else {
tp := option.value.Type()
switch tp.Kind() {
case reflect.Map:
if option.value.IsNil() {
option.empty()
}
case reflect.Slice:
if option.value.IsNil() {
option.empty()
}
}
}
}
func (option *Option) valueIsDefault() bool {
// Check if the value of the option corresponds to its
// default value
emptyval := option.emptyValue()
checkvalptr := reflect.New(emptyval.Type())
checkval := reflect.Indirect(checkvalptr)
checkval.Set(emptyval)
if len(option.Default) != 0 {
for _, v := range option.Default {
convert(v, checkval, option.tag)
}
}
return reflect.DeepEqual(option.value.Interface(), checkval.Interface())
}
func (option *Option) isUnmarshaler() Unmarshaler {
v := option.value
for {
if !v.CanInterface() {
break
}
i := v.Interface()
if u, ok := i.(Unmarshaler); ok {
return u
}
if !v.CanAddr() {
break
}
v = v.Addr()
}
return nil
}
func (option *Option) isBool() bool {
tp := option.value.Type()
for {
switch tp.Kind() {
case reflect.Slice, reflect.Ptr:
tp = tp.Elem()
case reflect.Bool:
return true
case reflect.Func:
return tp.NumIn() == 0
default:
return false
}
}
}
func (option *Option) isSignedNumber() bool {
tp := option.value.Type()
for {
switch tp.Kind() {
case reflect.Slice, reflect.Ptr:
tp = tp.Elem()
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Float32, reflect.Float64:
return true
default:
return false
}
}
}
func (option *Option) isFunc() bool {
return option.value.Type().Kind() == reflect.Func
}
func (option *Option) call(value *string) error {
var retval []reflect.Value
if value == nil {
retval = option.value.Call(nil)
} else {
tp := option.value.Type().In(0)
val := reflect.New(tp)
val = reflect.Indirect(val)
if err := convert(*value, val, option.tag); err != nil {
return err
}
retval = option.value.Call([]reflect.Value{val})
}
if len(retval) == 1 && retval[0].Type() == reflect.TypeOf((*error)(nil)).Elem() {
if retval[0].Interface() == nil {
return nil
}
return retval[0].Interface().(error)
}
return nil
}
func (option *Option) updateDefaultLiteral() {
defs := option.Default
def := ""
if len(defs) == 0 && option.canArgument() {
var showdef bool
switch option.field.Type.Kind() {
case reflect.Func, reflect.Ptr:
showdef = !option.value.IsNil()
case reflect.Slice, reflect.String, reflect.Array:
showdef = option.value.Len() > 0
case reflect.Map:
showdef = !option.value.IsNil() && option.value.Len() > 0
default:
zeroval := reflect.Zero(option.field.Type)
showdef = !reflect.DeepEqual(zeroval.Interface(), option.value.Interface())
}
if showdef {
def, _ = convertToString(option.value, option.tag)
}
} else if len(defs) != 0 {
l := len(defs) - 1
for i := 0; i < l; i++ {
def += quoteIfNeeded(defs[i]) + ", "
}
def += quoteIfNeeded(defs[l])
}
option.defaultLiteral = def
}
func (option *Option) shortAndLongName() string {
ret := &bytes.Buffer{}
if option.ShortName != 0 {
ret.WriteRune(defaultShortOptDelimiter)
ret.WriteRune(option.ShortName)
}
if len(option.LongName) != 0 {
if option.ShortName != 0 {
ret.WriteRune('/')
}
ret.WriteString(option.LongName)
}
return ret.String()
}

45
vendor/src/github.com/jessevdk/go-flags/options_test.go vendored
View file

@ -1,45 +0,0 @@
package flags
import (
"testing"
)
func TestPassDoubleDash(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
}{}
p := NewParser(&opts, PassDoubleDash)
ret, err := p.ParseArgs([]string{"-v", "--", "-v", "-g"})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
return
}
if !opts.Value {
t.Errorf("Expected Value to be true")
}
assertStringArray(t, ret, []string{"-v", "-g"})
}
func TestPassAfterNonOption(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
}{}
p := NewParser(&opts, PassAfterNonOption)
ret, err := p.ParseArgs([]string{"-v", "arg", "-v", "-g"})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
return
}
if !opts.Value {
t.Errorf("Expected Value to be true")
}
assertStringArray(t, ret, []string{"arg", "-v", "-g"})
}

67
vendor/src/github.com/jessevdk/go-flags/optstyle_other.go vendored
View file

@ -1,67 +0,0 @@
// +build !windows forceposix
package flags
import (
"strings"
)
const (
defaultShortOptDelimiter = '-'
defaultLongOptDelimiter = "--"
defaultNameArgDelimiter = '='
)
func argumentStartsOption(arg string) bool {
return len(arg) > 0 && arg[0] == '-'
}
func argumentIsOption(arg string) bool {
if len(arg) > 1 && arg[0] == '-' && arg[1] != '-' {
return true
}
if len(arg) > 2 && arg[0] == '-' && arg[1] == '-' && arg[2] != '-' {
return true
}
return false
}
// stripOptionPrefix returns the option without the prefix and whether or
// not the option is a long option or not.
func stripOptionPrefix(optname string) (prefix string, name string, islong bool) {
if strings.HasPrefix(optname, "--") {
return "--", optname[2:], true
} else if strings.HasPrefix(optname, "-") {
return "-", optname[1:], false
}
return "", optname, false
}
// splitOption attempts to split the passed option into a name and an argument.
// When there is no argument specified, nil will be returned for it.
func splitOption(prefix string, option string, islong bool) (string, string, *string) {
pos := strings.Index(option, "=")
if (islong && pos >= 0) || (!islong && pos == 1) {
rest := option[pos+1:]
return option[:pos], "=", &rest
}
return option, "", nil
}
// addHelpGroup adds a new group that contains default help parameters.
func (c *Command) addHelpGroup(showHelp func() error) *Group {
var help struct {
ShowHelp func() error `short:"h" long:"help" description:"Show this help message"`
}
help.ShowHelp = showHelp
ret, _ := c.AddGroup("Help Options", "", &help)
ret.isBuiltinHelp = true
return ret
}

108
vendor/src/github.com/jessevdk/go-flags/optstyle_windows.go vendored
View file

@ -1,108 +0,0 @@
// +build !forceposix
package flags
import (
"strings"
)
// Windows uses a front slash for both short and long options. Also it uses
// a colon for name/argument delimter.
const (
defaultShortOptDelimiter = '/'
defaultLongOptDelimiter = "/"
defaultNameArgDelimiter = ':'
)
func argumentStartsOption(arg string) bool {
return len(arg) > 0 && (arg[0] == '-' || arg[0] == '/')
}
func argumentIsOption(arg string) bool {
// Windows-style options allow front slash for the option
// delimiter.
if len(arg) > 1 && arg[0] == '/' {
return true
}
if len(arg) > 1 && arg[0] == '-' && arg[1] != '-' {
return true
}
if len(arg) > 2 && arg[0] == '-' && arg[1] == '-' && arg[2] != '-' {
return true
}
return false
}
// stripOptionPrefix returns the option without the prefix and whether or
// not the option is a long option or not.
func stripOptionPrefix(optname string) (prefix string, name string, islong bool) {
// Determine if the argument is a long option or not. Windows
// typically supports both long and short options with a single
// front slash as the option delimiter, so handle this situation
// nicely.
possplit := 0
if strings.HasPrefix(optname, "--") {
possplit = 2
islong = true
} else if strings.HasPrefix(optname, "-") {
possplit = 1
islong = false
} else if strings.HasPrefix(optname, "/") {
possplit = 1
islong = len(optname) > 2
}
return optname[:possplit], optname[possplit:], islong
}
// splitOption attempts to split the passed option into a name and an argument.
// When there is no argument specified, nil will be returned for it.
func splitOption(prefix string, option string, islong bool) (string, string, *string) {
if len(option) == 0 {
return option, "", nil
}
// Windows typically uses a colon for the option name and argument
// delimiter while POSIX typically uses an equals. Support both styles,
// but don't allow the two to be mixed. That is to say /foo:bar and
// --foo=bar are acceptable, but /foo=bar and --foo:bar are not.
var pos int
var sp string
if prefix == "/" {
sp = ":"
pos = strings.Index(option, sp)
} else if len(prefix) > 0 {
sp = "="
pos = strings.Index(option, sp)
}
if (islong && pos >= 0) || (!islong && pos == 1) {
rest := option[pos+1:]
return option[:pos], sp, &rest
}
return option, "", nil
}
// addHelpGroup adds a new group that contains default help parameters.
func (c *Command) addHelpGroup(showHelp func() error) *Group {
// Windows CLI applications typically use /? for help, so make both
// that available as well as the POSIX style h and help.
var help struct {
ShowHelpWindows func() error `short:"?" description:"Show this help message"`
ShowHelpPosix func() error `short:"h" long:"help" description:"Show this help message"`
}
help.ShowHelpWindows = showHelp
help.ShowHelpPosix = showHelp
ret, _ := c.AddGroup("Help Options", "", &help)
ret.isBuiltinHelp = true
return ret
}

693
vendor/src/github.com/jessevdk/go-flags/parser.go vendored
View file

@ -1,693 +0,0 @@
// Copyright 2012 Jesse van den Kieboom. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package flags
import (
"bytes"
"fmt"
"os"
"path"
"sort"
"strings"
"unicode/utf8"
)
// A Parser provides command line option parsing. It can contain several
// option groups each with their own set of options.
type Parser struct {
// Embedded, see Command for more information
*Command
// A usage string to be displayed in the help message.
Usage string
// Option flags changing the behavior of the parser.
Options Options
// NamespaceDelimiter separates group namespaces and option long names
NamespaceDelimiter string
// UnknownOptionsHandler is a function which gets called when the parser
// encounters an unknown option. The function receives the unknown option
// name, a SplitArgument which specifies its value if set with an argument
// separator, and the remaining command line arguments.
// It should return a new list of remaining arguments to continue parsing,
// or an error to indicate a parse failure.
UnknownOptionHandler func(option string, arg SplitArgument, args []string) ([]string, error)
// CompletionHandler is a function gets called to handle the completion of
// items. By default, the items are printed and the application is exited.
// You can override this default behavior by specifying a custom CompletionHandler.
CompletionHandler func(items []Completion)
// CommandHandler is a function that gets called to handle execution of a
// command. By default, the command will simply be executed. This can be
// overridden to perform certain actions (such as applying global flags)
// just before the command is executed. Note that if you override the
// handler it is your responsibility to call the command.Execute function.
//
// The command passed into CommandHandler may be nil in case there is no
// command to be executed when parsing has finished.
CommandHandler func(command Commander, args []string) error
internalError error
}
// SplitArgument represents the argument value of an option that was passed using
// an argument separator.
type SplitArgument interface {
// String returns the option's value as a string, and a boolean indicating
// if the option was present.
Value() (string, bool)
}
type strArgument struct {
value *string
}
func (s strArgument) Value() (string, bool) {
if s.value == nil {
return "", false
}
return *s.value, true
}
// Options provides parser options that change the behavior of the option
// parser.
type Options uint
const (
// None indicates no options.
None Options = 0
// HelpFlag adds a default Help Options group to the parser containing
// -h and --help options. When either -h or --help is specified on the
// command line, the parser will return the special error of type
// ErrHelp. When PrintErrors is also specified, then the help message
// will also be automatically printed to os.Stderr.
HelpFlag = 1 << iota
// PassDoubleDash passes all arguments after a double dash, --, as
// remaining command line arguments (i.e. they will not be parsed for
// flags).
PassDoubleDash
// IgnoreUnknown ignores any unknown options and passes them as
// remaining command line arguments instead of generating an error.
IgnoreUnknown
// PrintErrors prints any errors which occurred during parsing to
// os.Stderr.
PrintErrors
// PassAfterNonOption passes all arguments after the first non option
// as remaining command line arguments. This is equivalent to strict
// POSIX processing.
PassAfterNonOption
// Default is a convenient default set of options which should cover
// most of the uses of the flags package.
Default = HelpFlag | PrintErrors | PassDoubleDash
)
type parseState struct {
arg string
args []string
retargs []string
positional []*Arg
err error
command *Command
lookup lookup
}
// Parse is a convenience function to parse command line options with default
// settings. The provided data is a pointer to a struct representing the
// default option group (named "Application Options"). For more control, use
// flags.NewParser.
func Parse(data interface{}) ([]string, error) {
return NewParser(data, Default).Parse()
}
// ParseArgs is a convenience function to parse command line options with default
// settings. The provided data is a pointer to a struct representing the
// default option group (named "Application Options"). The args argument is
// the list of command line arguments to parse. If you just want to parse the
// default program command line arguments (i.e. os.Args), then use flags.Parse
// instead. For more control, use flags.NewParser.
func ParseArgs(data interface{}, args []string) ([]string, error) {
return NewParser(data, Default).ParseArgs(args)
}
// NewParser creates a new parser. It uses os.Args[0] as the application
// name and then calls Parser.NewNamedParser (see Parser.NewNamedParser for
// more details). The provided data is a pointer to a struct representing the
// default option group (named "Application Options"), or nil if the default
// group should not be added. The options parameter specifies a set of options
// for the parser.
func NewParser(data interface{}, options Options) *Parser {
p := NewNamedParser(path.Base(os.Args[0]), options)
if data != nil {
g, err := p.AddGroup("Application Options", "", data)
if err == nil {
g.parent = p
}
p.internalError = err
}
return p
}
// NewNamedParser creates a new parser. The appname is used to display the
// executable name in the built-in help message. Option groups and commands can
// be added to this parser by using AddGroup and AddCommand.
func NewNamedParser(appname string, options Options) *Parser {
p := &Parser{
Command: newCommand(appname, "", "", nil),
Options: options,
NamespaceDelimiter: ".",
}
p.Command.parent = p
return p
}
// Parse parses the command line arguments from os.Args using Parser.ParseArgs.
// For more detailed information see ParseArgs.
func (p *Parser) Parse() ([]string, error) {
return p.ParseArgs(os.Args[1:])
}
// ParseArgs parses the command line arguments according to the option groups that
// were added to the parser. On successful parsing of the arguments, the
// remaining, non-option, arguments (if any) are returned. The returned error
// indicates a parsing error and can be used with PrintError to display
// contextual information on where the error occurred exactly.
//
// When the common help group has been added (AddHelp) and either -h or --help
// was specified in the command line arguments, a help message will be
// automatically printed if the PrintErrors option is enabled.
// Furthermore, the special error type ErrHelp is returned.
// It is up to the caller to exit the program if so desired.
func (p *Parser) ParseArgs(args []string) ([]string, error) {
if p.internalError != nil {
return nil, p.internalError
}
p.eachOption(func(c *Command, g *Group, option *Option) {
option.isSet = false
option.isSetDefault = false
option.updateDefaultLiteral()
})
// Add built-in help group to all commands if necessary
if (p.Options & HelpFlag) != None {
p.addHelpGroups(p.showBuiltinHelp)
}
compval := os.Getenv("GO_FLAGS_COMPLETION")
if len(compval) != 0 {
comp := &completion{parser: p}
items := comp.complete(args)
if p.CompletionHandler != nil {
p.CompletionHandler(items)
} else {
comp.print(items, compval == "verbose")
os.Exit(0)
}
return nil, nil
}
s := &parseState{
args: args,
retargs: make([]string, 0, len(args)),
}
p.fillParseState(s)
for !s.eof() {
arg := s.pop()
// When PassDoubleDash is set and we encounter a --, then
// simply append all the rest as arguments and break out
if (p.Options&PassDoubleDash) != None && arg == "--" {
s.addArgs(s.args...)
break
}
if !argumentIsOption(arg) {
// Note: this also sets s.err, so we can just check for
// nil here and use s.err later
if p.parseNonOption(s) != nil {
break
}
continue
}
var err error
prefix, optname, islong := stripOptionPrefix(arg)
optname, _, argument := splitOption(prefix, optname, islong)
if islong {
err = p.parseLong(s, optname, argument)
} else {
err = p.parseShort(s, optname, argument)
}
if err != nil {
ignoreUnknown := (p.Options & IgnoreUnknown) != None
parseErr := wrapError(err)
if parseErr.Type != ErrUnknownFlag || (!ignoreUnknown && p.UnknownOptionHandler == nil) {
s.err = parseErr
break
}
if ignoreUnknown {
s.addArgs(arg)
} else if p.UnknownOptionHandler != nil {
modifiedArgs, err := p.UnknownOptionHandler(optname, strArgument{argument}, s.args)
if err != nil {
s.err = err
break
}
s.args = modifiedArgs
}
}
}
if s.err == nil {
p.eachOption(func(c *Command, g *Group, option *Option) {
if option.preventDefault {
return
}
option.clearDefault()
})
s.checkRequired(p)
}
var reterr error
if s.err != nil {
reterr = s.err
} else if len(s.command.commands) != 0 && !s.command.SubcommandsOptional {
reterr = s.estimateCommand()
} else if cmd, ok := s.command.data.(Commander); ok {
if p.CommandHandler != nil {
reterr = p.CommandHandler(cmd, s.retargs)
} else {
reterr = cmd.Execute(s.retargs)
}
} else if p.CommandHandler != nil {
reterr = p.CommandHandler(nil, s.retargs)
}
if reterr != nil {
var retargs []string
if ourErr, ok := reterr.(*Error); !ok || ourErr.Type != ErrHelp {
retargs = append([]string{s.arg}, s.args...)
} else {
retargs = s.args
}
return retargs, p.printError(reterr)
}
return s.retargs, nil
}
func (p *parseState) eof() bool {
return len(p.args) == 0
}
func (p *parseState) pop() string {
if p.eof() {
return ""
}
p.arg = p.args[0]
p.args = p.args[1:]
return p.arg
}
func (p *parseState) peek() string {
if p.eof() {
return ""
}
return p.args[0]
}
func (p *parseState) checkRequired(parser *Parser) error {
c := parser.Command
var required []*Option
for c != nil {
c.eachGroup(func(g *Group) {
for _, option := range g.options {
if !option.isSet && option.Required {
required = append(required, option)
}
}
})
c = c.Active
}
if len(required) == 0 {
if len(p.positional) > 0 {
var reqnames []string
for _, arg := range p.positional {
argRequired := (!arg.isRemaining() && p.command.ArgsRequired) || arg.Required != -1 || arg.RequiredMaximum != -1
if !argRequired {
continue
}
if arg.isRemaining() {
if arg.value.Len() < arg.Required {
var arguments string
if arg.Required > 1 {
arguments = "arguments, but got only " + fmt.Sprintf("%d", arg.value.Len())
} else {
arguments = "argument"
}
reqnames = append(reqnames, "`"+arg.Name+" (at least "+fmt.Sprintf("%d", arg.Required)+" "+arguments+")`")
} else if arg.RequiredMaximum != -1 && arg.value.Len() > arg.RequiredMaximum {
if arg.RequiredMaximum == 0 {
reqnames = append(reqnames, "`"+arg.Name+" (zero arguments)`")
} else {
var arguments string
if arg.RequiredMaximum > 1 {
arguments = "arguments, but got " + fmt.Sprintf("%d", arg.value.Len())
} else {
arguments = "argument"
}
reqnames = append(reqnames, "`"+arg.Name+" (at most "+fmt.Sprintf("%d", arg.RequiredMaximum)+" "+arguments+")`")
}
}
} else {
reqnames = append(reqnames, "`"+arg.Name+"`")
}
}
if len(reqnames) == 0 {
return nil
}
var msg string
if len(reqnames) == 1 {
msg = fmt.Sprintf("the required argument %s was not provided", reqnames[0])
} else {
msg = fmt.Sprintf("the required arguments %s and %s were not provided",
strings.Join(reqnames[:len(reqnames)-1], ", "), reqnames[len(reqnames)-1])
}
p.err = newError(ErrRequired, msg)
return p.err
}
return nil
}
names := make([]string, 0, len(required))
for _, k := range required {
names = append(names, "`"+k.String()+"'")
}
sort.Strings(names)
var msg string
if len(names) == 1 {
msg = fmt.Sprintf("the required flag %s was not specified", names[0])
} else {
msg = fmt.Sprintf("the required flags %s and %s were not specified",
strings.Join(names[:len(names)-1], ", "), names[len(names)-1])
}
p.err = newError(ErrRequired, msg)
return p.err
}
func (p *parseState) estimateCommand() error {
commands := p.command.sortedVisibleCommands()
cmdnames := make([]string, len(commands))
for i, v := range commands {
cmdnames[i] = v.Name
}
var msg string
var errtype ErrorType
if len(p.retargs) != 0 {
c, l := closestChoice(p.retargs[0], cmdnames)
msg = fmt.Sprintf("Unknown command `%s'", p.retargs[0])
errtype = ErrUnknownCommand
if float32(l)/float32(len(c)) < 0.5 {
msg = fmt.Sprintf("%s, did you mean `%s'?", msg, c)
} else if len(cmdnames) == 1 {
msg = fmt.Sprintf("%s. You should use the %s command",
msg,
cmdnames[0])
} else {
msg = fmt.Sprintf("%s. Please specify one command of: %s or %s",
msg,
strings.Join(cmdnames[:len(cmdnames)-1], ", "),
cmdnames[len(cmdnames)-1])
}
} else {
errtype = ErrCommandRequired
if len(cmdnames) == 1 {
msg = fmt.Sprintf("Please specify the %s command", cmdnames[0])
} else {
msg = fmt.Sprintf("Please specify one command of: %s or %s",
strings.Join(cmdnames[:len(cmdnames)-1], ", "),
cmdnames[len(cmdnames)-1])
}
}
return newError(errtype, msg)
}
func (p *Parser) parseOption(s *parseState, name string, option *Option, canarg bool, argument *string) (err error) {
if !option.canArgument() {
if argument != nil {
return newErrorf(ErrNoArgumentForBool, "bool flag `%s' cannot have an argument", option)
}
err = option.set(nil)
} else if argument != nil || (canarg && !s.eof()) {
var arg string
if argument != nil {
arg = *argument
} else {
arg = s.pop()
if argumentIsOption(arg) && !(option.isSignedNumber() && len(arg) > 1 && arg[0] == '-' && arg[1] >= '0' && arg[1] <= '9') {
return newErrorf(ErrExpectedArgument, "expected argument for flag `%s', but got option `%s'", option, arg)
} else if p.Options&PassDoubleDash != 0 && arg == "--" {
return newErrorf(ErrExpectedArgument, "expected argument for flag `%s', but got double dash `--'", option)
}
}
if option.tag.Get("unquote") != "false" {
arg, err = unquoteIfPossible(arg)
}
if err == nil {
err = option.set(&arg)
}
} else if option.OptionalArgument {
option.empty()
for _, v := range option.OptionalValue {
err = option.set(&v)
if err != nil {
break
}
}
} else {
err = newErrorf(ErrExpectedArgument, "expected argument for flag `%s'", option)
}
if err != nil {
if _, ok := err.(*Error); !ok {
err = newErrorf(ErrMarshal, "invalid argument for flag `%s' (expected %s): %s",
option,
option.value.Type(),
err.Error())
}
}
return err
}
func (p *Parser) parseLong(s *parseState, name string, argument *string) error {
if option := s.lookup.longNames[name]; option != nil {
// Only long options that are required can consume an argument
// from the argument list
canarg := !option.OptionalArgument
return p.parseOption(s, name, option, canarg, argument)
}
return newErrorf(ErrUnknownFlag, "unknown flag `%s'", name)
}
func (p *Parser) splitShortConcatArg(s *parseState, optname string) (string, *string) {
c, n := utf8.DecodeRuneInString(optname)
if n == len(optname) {
return optname, nil
}
first := string(c)
if option := s.lookup.shortNames[first]; option != nil && option.canArgument() {
arg := optname[n:]
return first, &arg
}
return optname, nil
}
func (p *Parser) parseShort(s *parseState, optname string, argument *string) error {
if argument == nil {
optname, argument = p.splitShortConcatArg(s, optname)
}
for i, c := range optname {
shortname := string(c)
if option := s.lookup.shortNames[shortname]; option != nil {
// Only the last short argument can consume an argument from
// the arguments list, and only if it's non optional
canarg := (i+utf8.RuneLen(c) == len(optname)) && !option.OptionalArgument
if err := p.parseOption(s, shortname, option, canarg, argument); err != nil {
return err
}
} else {
return newErrorf(ErrUnknownFlag, "unknown flag `%s'", shortname)
}
// Only the first option can have a concatted argument, so just
// clear argument here
argument = nil
}
return nil
}
func (p *parseState) addArgs(args ...string) error {
for len(p.positional) > 0 && len(args) > 0 {
arg := p.positional[0]
if err := convert(args[0], arg.value, arg.tag); err != nil {
p.err = err
return err
}
if !arg.isRemaining() {
p.positional = p.positional[1:]
}
args = args[1:]
}
p.retargs = append(p.retargs, args...)
return nil
}
func (p *Parser) parseNonOption(s *parseState) error {
if len(s.positional) > 0 {
return s.addArgs(s.arg)
}
if len(s.command.commands) > 0 && len(s.retargs) == 0 {
if cmd := s.lookup.commands[s.arg]; cmd != nil {
s.command.Active = cmd
cmd.fillParseState(s)
return nil
} else if !s.command.SubcommandsOptional {
s.addArgs(s.arg)
return newErrorf(ErrUnknownCommand, "Unknown command `%s'", s.arg)
}
}
if (p.Options & PassAfterNonOption) != None {
// If PassAfterNonOption is set then all remaining arguments
// are considered positional
if err := s.addArgs(s.arg); err != nil {
return err
}
if err := s.addArgs(s.args...); err != nil {
return err
}
s.args = []string{}
} else {
return s.addArgs(s.arg)
}
return nil
}
func (p *Parser) showBuiltinHelp() error {
var b bytes.Buffer
p.WriteHelp(&b)
return newError(ErrHelp, b.String())
}
func (p *Parser) printError(err error) error {
if err != nil && (p.Options&PrintErrors) != None {
fmt.Fprintln(os.Stderr, err)
}
return err
}
func (p *Parser) clearIsSet() {
p.eachCommand(func(c *Command) {
c.eachGroup(func(g *Group) {
for _, option := range g.options {
option.isSet = false
}
})
}, true)
}

612
vendor/src/github.com/jessevdk/go-flags/parser_test.go vendored
View file

@ -1,612 +0,0 @@
package flags
import (
"fmt"
"os"
"reflect"
"runtime"
"strconv"
"strings"
"testing"
"time"
)
type defaultOptions struct {
Int int `long:"i"`
IntDefault int `long:"id" default:"1"`
Float64 float64 `long:"f"`
Float64Default float64 `long:"fd" default:"-3.14"`
NumericFlag bool `short:"3"`
String string `long:"str"`
StringDefault string `long:"strd" default:"abc"`
StringNotUnquoted string `long:"strnot" unquote:"false"`
Time time.Duration `long:"t"`
TimeDefault time.Duration `long:"td" default:"1m"`
Map map[string]int `long:"m"`
MapDefault map[string]int `long:"md" default:"a:1"`
Slice []int `long:"s"`
SliceDefault []int `long:"sd" default:"1" default:"2"`
}
func TestDefaults(t *testing.T) {
var tests = []struct {
msg string
args []string
expected defaultOptions
}{
{
msg: "no arguments, expecting default values",
args: []string{},
expected: defaultOptions{
Int: 0,
IntDefault: 1,
Float64: 0.0,
Float64Default: -3.14,
NumericFlag: false,
String: "",
StringDefault: "abc",
Time: 0,
TimeDefault: time.Minute,
Map: map[string]int{},
MapDefault: map[string]int{"a": 1},
Slice: []int{},
SliceDefault: []int{1, 2},
},
},
{
msg: "non-zero value arguments, expecting overwritten arguments",
args: []string{"--i=3", "--id=3", "--f=-2.71", "--fd=2.71", "-3", "--str=def", "--strd=def", "--t=3ms", "--td=3ms", "--m=c:3", "--md=c:3", "--s=3", "--sd=3"},
expected: defaultOptions{
Int: 3,
IntDefault: 3,
Float64: -2.71,
Float64Default: 2.71,
NumericFlag: true,
String: "def",
StringDefault: "def",
Time: 3 * time.Millisecond,
TimeDefault: 3 * time.Millisecond,
Map: map[string]int{"c": 3},
MapDefault: map[string]int{"c": 3},
Slice: []int{3},
SliceDefault: []int{3},
},
},
{
msg: "zero value arguments, expecting overwritten arguments",
args: []string{"--i=0", "--id=0", "--f=0", "--fd=0", "--str", "", "--strd=\"\"", "--t=0ms", "--td=0s", "--m=:0", "--md=:0", "--s=0", "--sd=0"},
expected: defaultOptions{
Int: 0,
IntDefault: 0,
Float64: 0,
Float64Default: 0,
String: "",
StringDefault: "",
Time: 0,
TimeDefault: 0,
Map: map[string]int{"": 0},
MapDefault: map[string]int{"": 0},
Slice: []int{0},
SliceDefault: []int{0},
},
},
}
for _, test := range tests {
var opts defaultOptions
_, err := ParseArgs(&opts, test.args)
if err != nil {
t.Fatalf("%s:\nUnexpected error: %v", test.msg, err)
}
if opts.Slice == nil {
opts.Slice = []int{}
}
if !reflect.DeepEqual(opts, test.expected) {
t.Errorf("%s:\nUnexpected options with arguments %+v\nexpected\n%+v\nbut got\n%+v\n", test.msg, test.args, test.expected, opts)
}
}
}
func TestNoDefaultsForBools(t *testing.T) {
var opts struct {
DefaultBool bool `short:"d" default:"true"`
}
if runtime.GOOS == "windows" {
assertParseFail(t, ErrInvalidTag, "boolean flag `/d' may not have default values, they always default to `false' and can only be turned on", &opts)
} else {
assertParseFail(t, ErrInvalidTag, "boolean flag `-d' may not have default values, they always default to `false' and can only be turned on", &opts)
}
}
func TestUnquoting(t *testing.T) {
var tests = []struct {
arg string
err error
value string
}{
{
arg: "\"abc",
err: strconv.ErrSyntax,
value: "",
},
{
arg: "\"\"abc\"",
err: strconv.ErrSyntax,
value: "",
},
{
arg: "\"abc\"",
err: nil,
value: "abc",
},
{
arg: "\"\\\"abc\\\"\"",
err: nil,
value: "\"abc\"",
},
{
arg: "\"\\\"abc\"",
err: nil,
value: "\"abc",
},
}
for _, test := range tests {
var opts defaultOptions
for _, delimiter := range []bool{false, true} {
p := NewParser(&opts, None)
var err error
if delimiter {
_, err = p.ParseArgs([]string{"--str=" + test.arg, "--strnot=" + test.arg})
} else {
_, err = p.ParseArgs([]string{"--str", test.arg, "--strnot", test.arg})
}
if test.err == nil {
if err != nil {
t.Fatalf("Expected no error but got: %v", err)
}
if test.value != opts.String {
t.Fatalf("Expected String to be %q but got %q", test.value, opts.String)
}
if q := strconv.Quote(test.value); q != opts.StringNotUnquoted {
t.Fatalf("Expected StringDefault to be %q but got %q", q, opts.StringNotUnquoted)
}
} else {
if err == nil {
t.Fatalf("Expected error")
} else if e, ok := err.(*Error); ok {
if strings.HasPrefix(e.Message, test.err.Error()) {
t.Fatalf("Expected error message to end with %q but got %v", test.err.Error(), e.Message)
}
}
}
}
}
}
// EnvRestorer keeps a copy of a set of env variables and can restore the env from them
type EnvRestorer struct {
env map[string]string
}
func (r *EnvRestorer) Restore() {
os.Clearenv()
for k, v := range r.env {
os.Setenv(k, v)
}
}
// EnvSnapshot returns a snapshot of the currently set env variables
func EnvSnapshot() *EnvRestorer {
r := EnvRestorer{make(map[string]string)}
for _, kv := range os.Environ() {
parts := strings.SplitN(kv, "=", 2)
if len(parts) != 2 {
panic("got a weird env variable: " + kv)
}
r.env[parts[0]] = parts[1]
}
return &r
}
type envDefaultOptions struct {
Int int `long:"i" default:"1" env:"TEST_I"`
Time time.Duration `long:"t" default:"1m" env:"TEST_T"`
Map map[string]int `long:"m" default:"a:1" env:"TEST_M" env-delim:";"`
Slice []int `long:"s" default:"1" default:"2" env:"TEST_S" env-delim:","`
}
func TestEnvDefaults(t *testing.T) {
var tests = []struct {
msg string
args []string
expected envDefaultOptions
env map[string]string
}{
{
msg: "no arguments, no env, expecting default values",
args: []string{},
expected: envDefaultOptions{
Int: 1,
Time: time.Minute,
Map: map[string]int{"a": 1},
Slice: []int{1, 2},
},
},
{
msg: "no arguments, env defaults, expecting env default values",
args: []string{},
expected: envDefaultOptions{
Int: 2,
Time: 2 * time.Minute,
Map: map[string]int{"a": 2, "b": 3},
Slice: []int{4, 5, 6},
},
env: map[string]string{
"TEST_I": "2",
"TEST_T": "2m",
"TEST_M": "a:2;b:3",
"TEST_S": "4,5,6",
},
},
{
msg: "non-zero value arguments, expecting overwritten arguments",
args: []string{"--i=3", "--t=3ms", "--m=c:3", "--s=3"},
expected: envDefaultOptions{
Int: 3,
Time: 3 * time.Millisecond,
Map: map[string]int{"c": 3},
Slice: []int{3},
},
env: map[string]string{
"TEST_I": "2",
"TEST_T": "2m",
"TEST_M": "a:2;b:3",
"TEST_S": "4,5,6",
},
},
{
msg: "zero value arguments, expecting overwritten arguments",
args: []string{"--i=0", "--t=0ms", "--m=:0", "--s=0"},
expected: envDefaultOptions{
Int: 0,
Time: 0,
Map: map[string]int{"": 0},
Slice: []int{0},
},
env: map[string]string{
"TEST_I": "2",
"TEST_T": "2m",
"TEST_M": "a:2;b:3",
"TEST_S": "4,5,6",
},
},
}
oldEnv := EnvSnapshot()
defer oldEnv.Restore()
for _, test := range tests {
var opts envDefaultOptions
oldEnv.Restore()
for envKey, envValue := range test.env {
os.Setenv(envKey, envValue)
}
_, err := ParseArgs(&opts, test.args)
if err != nil {
t.Fatalf("%s:\nUnexpected error: %v", test.msg, err)
}
if opts.Slice == nil {
opts.Slice = []int{}
}
if !reflect.DeepEqual(opts, test.expected) {
t.Errorf("%s:\nUnexpected options with arguments %+v\nexpected\n%+v\nbut got\n%+v\n", test.msg, test.args, test.expected, opts)
}
}
}
func TestOptionAsArgument(t *testing.T) {
var tests = []struct {
args []string
expectError bool
errType ErrorType
errMsg string
rest []string
}{
{
// short option must not be accepted as argument
args: []string{"--string-slice", "foobar", "--string-slice", "-o"},
expectError: true,
errType: ErrExpectedArgument,
errMsg: "expected argument for flag `" + defaultLongOptDelimiter + "string-slice', but got option `-o'",
},
{
// long option must not be accepted as argument
args: []string{"--string-slice", "foobar", "--string-slice", "--other-option"},
expectError: true,
errType: ErrExpectedArgument,
errMsg: "expected argument for flag `" + defaultLongOptDelimiter + "string-slice', but got option `--other-option'",
},
{
// long option must not be accepted as argument
args: []string{"--string-slice", "--"},
expectError: true,
errType: ErrExpectedArgument,
errMsg: "expected argument for flag `" + defaultLongOptDelimiter + "string-slice', but got double dash `--'",
},
{
// quoted and appended option should be accepted as argument (even if it looks like an option)
args: []string{"--string-slice", "foobar", "--string-slice=\"--other-option\""},
},
{
// Accept any single character arguments including '-'
args: []string{"--string-slice", "-"},
},
{
// Do not accept arguments which start with '-' even if the next character is a digit
args: []string{"--string-slice", "-3.14"},
expectError: true,
errType: ErrExpectedArgument,
errMsg: "expected argument for flag `" + defaultLongOptDelimiter + "string-slice', but got option `-3.14'",
},
{
// Do not accept arguments which start with '-' if the next character is not a digit
args: []string{"--string-slice", "-character"},
expectError: true,
errType: ErrExpectedArgument,
errMsg: "expected argument for flag `" + defaultLongOptDelimiter + "string-slice', but got option `-character'",
},
{
args: []string{"-o", "-", "-"},
rest: []string{"-", "-"},
},
{
// Accept arguments which start with '-' if the next character is a digit, for number options only
args: []string{"--int-slice", "-3"},
},
{
// Accept arguments which start with '-' if the next character is a digit, for number options only
args: []string{"--int16", "-3"},
},
{
// Accept arguments which start with '-' if the next character is a digit, for number options only
args: []string{"--float32", "-3.2"},
},
{
// Accept arguments which start with '-' if the next character is a digit, for number options only
args: []string{"--float32ptr", "-3.2"},
},
}
var opts struct {
StringSlice []string `long:"string-slice"`
IntSlice []int `long:"int-slice"`
Int16 int16 `long:"int16"`
Float32 float32 `long:"float32"`
Float32Ptr *float32 `long:"float32ptr"`
OtherOption bool `long:"other-option" short:"o"`
}
for _, test := range tests {
if test.expectError {
assertParseFail(t, test.errType, test.errMsg, &opts, test.args...)
} else {
args := assertParseSuccess(t, &opts, test.args...)
assertStringArray(t, args, test.rest)
}
}
}
func TestUnknownFlagHandler(t *testing.T) {
var opts struct {
Flag1 string `long:"flag1"`
Flag2 string `long:"flag2"`
}
p := NewParser(&opts, None)
var unknownFlag1 string
var unknownFlag2 bool
var unknownFlag3 string
// Set up a callback to intercept unknown options during parsing
p.UnknownOptionHandler = func(option string, arg SplitArgument, args []string) ([]string, error) {
if option == "unknownFlag1" {
if argValue, ok := arg.Value(); ok {
unknownFlag1 = argValue
return args, nil
}
// consume a value from remaining args list
unknownFlag1 = args[0]
return args[1:], nil
} else if option == "unknownFlag2" {
// treat this one as a bool switch, don't consume any args
unknownFlag2 = true
return args, nil
} else if option == "unknownFlag3" {
if argValue, ok := arg.Value(); ok {
unknownFlag3 = argValue
return args, nil
}
// consume a value from remaining args list
unknownFlag3 = args[0]
return args[1:], nil
}
return args, fmt.Errorf("Unknown flag: %v", option)
}
// Parse args containing some unknown flags, verify that
// our callback can handle all of them
_, err := p.ParseArgs([]string{"--flag1=stuff", "--unknownFlag1", "blah", "--unknownFlag2", "--unknownFlag3=baz", "--flag2=foo"})
if err != nil {
assertErrorf(t, "Parser returned unexpected error %v", err)
}
assertString(t, opts.Flag1, "stuff")
assertString(t, opts.Flag2, "foo")
assertString(t, unknownFlag1, "blah")
assertString(t, unknownFlag3, "baz")
if !unknownFlag2 {
assertErrorf(t, "Flag should have been set by unknown handler, but had value: %v", unknownFlag2)
}
// Parse args with unknown flags that callback doesn't handle, verify it returns error
_, err = p.ParseArgs([]string{"--flag1=stuff", "--unknownFlagX", "blah", "--flag2=foo"})
if err == nil {
assertErrorf(t, "Parser should have returned error, but returned nil")
}
}
func TestChoices(t *testing.T) {
var opts struct {
Choice string `long:"choose" choice:"v1" choice:"v2"`
}
assertParseFail(t, ErrInvalidChoice, "Invalid value `invalid' for option `"+defaultLongOptDelimiter+"choose'. Allowed values are: v1 or v2", &opts, "--choose", "invalid")
assertParseSuccess(t, &opts, "--choose", "v2")
assertString(t, opts.Choice, "v2")
}
func TestEmbedded(t *testing.T) {
type embedded struct {
V bool `short:"v"`
}
var opts struct {
embedded
}
assertParseSuccess(t, &opts, "-v")
if !opts.V {
t.Errorf("Expected V to be true")
}
}
type command struct {
}
func (c *command) Execute(args []string) error {
return nil
}
func TestCommandHandlerNoCommand(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
}{}
parser := NewParser(&opts, Default&^PrintErrors)
var executedCommand Commander
var executedArgs []string
executed := false
parser.CommandHandler = func(command Commander, args []string) error {
executed = true
executedCommand = command
executedArgs = args
return nil
}
_, err := parser.ParseArgs([]string{"arg1", "arg2"})
if err != nil {
t.Fatalf("Unexpected parse error: %s", err)
}
if !executed {
t.Errorf("Expected command handler to be executed")
}
if executedCommand != nil {
t.Errorf("Did not exect an executed command")
}
assertStringArray(t, executedArgs, []string{"arg1", "arg2"})
}
func TestCommandHandler(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
Command command `command:"cmd"`
}{}
parser := NewParser(&opts, Default&^PrintErrors)
var executedCommand Commander
var executedArgs []string
executed := false
parser.CommandHandler = func(command Commander, args []string) error {
executed = true
executedCommand = command
executedArgs = args
return nil
}
_, err := parser.ParseArgs([]string{"cmd", "arg1", "arg2"})
if err != nil {
t.Fatalf("Unexpected parse error: %s", err)
}
if !executed {
t.Errorf("Expected command handler to be executed")
}
if executedCommand == nil {
t.Errorf("Expected command handler to be executed")
}
assertStringArray(t, executedArgs, []string{"arg1", "arg2"})
}

81
vendor/src/github.com/jessevdk/go-flags/pointer_test.go vendored
View file

@ -1,81 +0,0 @@
package flags
import (
"testing"
)
func TestPointerBool(t *testing.T) {
var opts = struct {
Value *bool `short:"v"`
}{}
ret := assertParseSuccess(t, &opts, "-v")
assertStringArray(t, ret, []string{})
if !*opts.Value {
t.Errorf("Expected Value to be true")
}
}
func TestPointerString(t *testing.T) {
var opts = struct {
Value *string `short:"v"`
}{}
ret := assertParseSuccess(t, &opts, "-v", "value")
assertStringArray(t, ret, []string{})
assertString(t, *opts.Value, "value")
}
func TestPointerSlice(t *testing.T) {
var opts = struct {
Value *[]string `short:"v"`
}{}
ret := assertParseSuccess(t, &opts, "-v", "value1", "-v", "value2")
assertStringArray(t, ret, []string{})
assertStringArray(t, *opts.Value, []string{"value1", "value2"})
}
func TestPointerMap(t *testing.T) {
var opts = struct {
Value *map[string]int `short:"v"`
}{}
ret := assertParseSuccess(t, &opts, "-v", "k1:2", "-v", "k2:-5")
assertStringArray(t, ret, []string{})
if v, ok := (*opts.Value)["k1"]; !ok {
t.Errorf("Expected key \"k1\" to exist")
} else if v != 2 {
t.Errorf("Expected \"k1\" to be 2, but got %#v", v)
}
if v, ok := (*opts.Value)["k2"]; !ok {
t.Errorf("Expected key \"k2\" to exist")
} else if v != -5 {
t.Errorf("Expected \"k2\" to be -5, but got %#v", v)
}
}
type PointerGroup struct {
Value bool `short:"v"`
}
func TestPointerGroup(t *testing.T) {
var opts = struct {
Group *PointerGroup `group:"Group Options"`
}{}
ret := assertParseSuccess(t, &opts, "-v")
assertStringArray(t, ret, []string{})
if !opts.Group.Value {
t.Errorf("Expected Group.Value to be true")
}
}

194
vendor/src/github.com/jessevdk/go-flags/short_test.go vendored
View file

@ -1,194 +0,0 @@
package flags
import (
"fmt"
"testing"
)
func TestShort(t *testing.T) {
var opts = struct {
Value bool `short:"v"`
}{}
ret := assertParseSuccess(t, &opts, "-v")
assertStringArray(t, ret, []string{})
if !opts.Value {
t.Errorf("Expected Value to be true")
}
}
func TestShortTooLong(t *testing.T) {
var opts = struct {
Value bool `short:"vv"`
}{}
assertParseFail(t, ErrShortNameTooLong, "short names can only be 1 character long, not `vv'", &opts)
}
func TestShortRequired(t *testing.T) {
var opts = struct {
Value bool `short:"v" required:"true"`
}{}
assertParseFail(t, ErrRequired, fmt.Sprintf("the required flag `%cv' was not specified", defaultShortOptDelimiter), &opts)
}
func TestShortMultiConcat(t *testing.T) {
var opts = struct {
V bool `short:"v"`
O bool `short:"o"`
F bool `short:"f"`
}{}
ret := assertParseSuccess(t, &opts, "-vo", "-f")
assertStringArray(t, ret, []string{})
if !opts.V {
t.Errorf("Expected V to be true")
}
if !opts.O {
t.Errorf("Expected O to be true")
}
if !opts.F {
t.Errorf("Expected F to be true")
}
}
func TestShortMultiRequiredConcat(t *testing.T) {
var opts = struct {
V bool `short:"v" required:"true"`
O bool `short:"o" required:"true"`
F bool `short:"f" required:"true"`
}{}
ret := assertParseSuccess(t, &opts, "-vo", "-f")
assertStringArray(t, ret, []string{})
if !opts.V {
t.Errorf("Expected V to be true")
}
if !opts.O {
t.Errorf("Expected O to be true")
}
if !opts.F {
t.Errorf("Expected F to be true")
}
}
func TestShortMultiSlice(t *testing.T) {
var opts = struct {
Values []bool `short:"v"`
}{}
ret := assertParseSuccess(t, &opts, "-v", "-v")
assertStringArray(t, ret, []string{})
assertBoolArray(t, opts.Values, []bool{true, true})
}
func TestShortMultiSliceConcat(t *testing.T) {
var opts = struct {
Values []bool `short:"v"`
}{}
ret := assertParseSuccess(t, &opts, "-vvv")
assertStringArray(t, ret, []string{})
assertBoolArray(t, opts.Values, []bool{true, true, true})
}
func TestShortWithEqualArg(t *testing.T) {
var opts = struct {
Value string `short:"v"`
}{}
ret := assertParseSuccess(t, &opts, "-v=value")
assertStringArray(t, ret, []string{})
assertString(t, opts.Value, "value")
}
func TestShortWithArg(t *testing.T) {
var opts = struct {
Value string `short:"v"`
}{}
ret := assertParseSuccess(t, &opts, "-vvalue")
assertStringArray(t, ret, []string{})
assertString(t, opts.Value, "value")
}
func TestShortArg(t *testing.T) {
var opts = struct {
Value string `short:"v"`
}{}
ret := assertParseSuccess(t, &opts, "-v", "value")
assertStringArray(t, ret, []string{})
assertString(t, opts.Value, "value")
}
func TestShortMultiWithEqualArg(t *testing.T) {
var opts = struct {
F []bool `short:"f"`
Value string `short:"v"`
}{}
assertParseFail(t, ErrExpectedArgument, fmt.Sprintf("expected argument for flag `%cv'", defaultShortOptDelimiter), &opts, "-ffv=value")
}
func TestShortMultiArg(t *testing.T) {
var opts = struct {
F []bool `short:"f"`
Value string `short:"v"`
}{}
ret := assertParseSuccess(t, &opts, "-ffv", "value")
assertStringArray(t, ret, []string{})
assertBoolArray(t, opts.F, []bool{true, true})
assertString(t, opts.Value, "value")
}
func TestShortMultiArgConcatFail(t *testing.T) {
var opts = struct {
F []bool `short:"f"`
Value string `short:"v"`
}{}
assertParseFail(t, ErrExpectedArgument, fmt.Sprintf("expected argument for flag `%cv'", defaultShortOptDelimiter), &opts, "-ffvvalue")
}
func TestShortMultiArgConcat(t *testing.T) {
var opts = struct {
F []bool `short:"f"`
Value string `short:"v"`
}{}
ret := assertParseSuccess(t, &opts, "-vff")
assertStringArray(t, ret, []string{})
assertString(t, opts.Value, "ff")
}
func TestShortOptional(t *testing.T) {
var opts = struct {
F []bool `short:"f"`
Value string `short:"v" optional:"yes" optional-value:"value"`
}{}
ret := assertParseSuccess(t, &opts, "-fv", "f")
assertStringArray(t, ret, []string{"f"})
assertString(t, opts.Value, "value")
}

38
vendor/src/github.com/jessevdk/go-flags/tag_test.go vendored
View file

@ -1,38 +0,0 @@
package flags
import (
"testing"
)
func TestTagMissingColon(t *testing.T) {
var opts = struct {
Value bool `short`
}{}
assertParseFail(t, ErrTag, "expected `:' after key name, but got end of tag (in `short`)", &opts, "")
}
func TestTagMissingValue(t *testing.T) {
var opts = struct {
Value bool `short:`
}{}
assertParseFail(t, ErrTag, "expected `\"' to start tag value at end of tag (in `short:`)", &opts, "")
}
func TestTagMissingQuote(t *testing.T) {
var opts = struct {
Value bool `short:"v`
}{}
assertParseFail(t, ErrTag, "expected end of tag value `\"' at end of tag (in `short:\"v`)", &opts, "")
}
func TestTagNewline(t *testing.T) {
var opts = struct {
Value bool `long:"verbose" description:"verbose
something"`
}{}
assertParseFail(t, ErrTag, "unexpected newline in tag value `description' (in `long:\"verbose\" description:\"verbose\nsomething\"`)", &opts, "")
}

28
vendor/src/github.com/jessevdk/go-flags/termsize.go vendored
View file

@ -1,28 +0,0 @@
// +build !windows,!plan9,!solaris
package flags
import (
"syscall"
"unsafe"
)
type winsize struct {
row, col uint16
xpixel, ypixel uint16
}
func getTerminalColumns() int {
ws := winsize{}
if tIOCGWINSZ != 0 {
syscall.Syscall(syscall.SYS_IOCTL,
uintptr(0),
uintptr(tIOCGWINSZ),
uintptr(unsafe.Pointer(&ws)))
return int(ws.col)
}
return 80
}

7
vendor/src/github.com/jessevdk/go-flags/termsize_linux.go vendored
View file

@ -1,7 +0,0 @@
// +build linux
package flags
const (
tIOCGWINSZ = 0x5413
)

7
vendor/src/github.com/jessevdk/go-flags/termsize_nosysioctl.go vendored
View file

@ -1,7 +0,0 @@
// +build windows plan9 solaris
package flags
func getTerminalColumns() int {
return 80
}

7
vendor/src/github.com/jessevdk/go-flags/termsize_other.go vendored
View file

@ -1,7 +0,0 @@
// +build !darwin,!freebsd,!netbsd,!openbsd,!linux
package flags
const (
tIOCGWINSZ = 0
)

7
vendor/src/github.com/jessevdk/go-flags/termsize_unix.go vendored
View file

@ -1,7 +0,0 @@
// +build darwin freebsd netbsd openbsd
package flags
const (
tIOCGWINSZ = 0x40087468
)

66
vendor/src/github.com/jessevdk/go-flags/unknown_test.go vendored
View file

@ -1,66 +0,0 @@
package flags
import (
"testing"
)
func TestUnknownFlags(t *testing.T) {
var opts = struct {
Verbose []bool `short:"v" long:"verbose" description:"Verbose output"`
}{}
args := []string{
"-f",
}
p := NewParser(&opts, 0)
args, err := p.ParseArgs(args)
if err == nil {
t.Fatal("Expected error for unknown argument")
}
}
func TestIgnoreUnknownFlags(t *testing.T) {
var opts = struct {
Verbose []bool `short:"v" long:"verbose" description:"Verbose output"`
}{}
args := []string{
"hello",
"world",
"-v",
"--foo=bar",
"--verbose",
"-f",
}
p := NewParser(&opts, IgnoreUnknown)
args, err := p.ParseArgs(args)
if err != nil {
t.Fatal(err)
}
exargs := []string{
"hello",
"world",
"--foo=bar",
"-f",
}
issame := (len(args) == len(exargs))
if issame {
for i := 0; i < len(args); i++ {
if args[i] != exargs[i] {
issame = false
break
}
}
}
if !issame {
t.Fatalf("Expected %v but got %v", exargs, args)
}
}