bump urfave/cli v1.20.0
previous version was somewhere between v1.18 and v1.19 Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
parent
8e4f645fca
commit
1150ce9c6e
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@ -20,7 +20,7 @@ github.com/golang/protobuf 18c9bb3261723cd5401db4d0c9fbc5c3b6c70fe8
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# Command-line interface.
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github.com/cyphar/filepath-securejoin a261ee33d7a517f054effbf451841abaafe3e0fd # v0.2.2
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github.com/docker/go-units 47565b4f722fb6ceae66b95f853feed578a4a51c # v0.3.3
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github.com/urfave/cli d53eb991652b1d438abdd34ce4bfa3ef1539108e
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github.com/urfave/cli cfb38830724cc34fedffe9a2a29fb54fa9169cd1 # v1.20.0
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golang.org/x/sys 9eafafc0a87e0fd0aeeba439a4573537970c44c7 https://github.com/golang/sys
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# console dependencies
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@ -30,6 +30,7 @@ applications in an expressive way.
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* [Flags](#flags)
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+ [Placeholder Values](#placeholder-values)
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+ [Alternate Names](#alternate-names)
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+ [Ordering](#ordering)
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+ [Values from the Environment](#values-from-the-environment)
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+ [Values from alternate input sources (YAML, TOML, and others)](#values-from-alternate-input-sources-yaml-toml-and-others)
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* [Subcommands](#subcommands)
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@ -450,6 +451,76 @@ That flag can then be set with `--lang spanish` or `-l spanish`. Note that
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giving two different forms of the same flag in the same command invocation is an
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error.
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#### Ordering
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Flags for the application and commands are shown in the order they are defined.
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However, it's possible to sort them from outside this library by using `FlagsByName`
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or `CommandsByName` with `sort`.
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For example this:
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<!-- {
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"args": ["--help"],
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"output": "add a task to the list\n.*complete a task on the list\n.*\n\n.*\n.*Load configuration from FILE\n.*Language for the greeting.*"
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} -->
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``` go
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package main
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import (
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"os"
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"sort"
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"github.com/urfave/cli"
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)
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func main() {
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app := cli.NewApp()
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app.Flags = []cli.Flag {
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cli.StringFlag{
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Name: "lang, l",
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Value: "english",
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Usage: "Language for the greeting",
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},
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cli.StringFlag{
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Name: "config, c",
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Usage: "Load configuration from `FILE`",
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},
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}
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app.Commands = []cli.Command{
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{
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Name: "complete",
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Aliases: []string{"c"},
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Usage: "complete a task on the list",
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Action: func(c *cli.Context) error {
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return nil
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},
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},
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{
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Name: "add",
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Aliases: []string{"a"},
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Usage: "add a task to the list",
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Action: func(c *cli.Context) error {
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return nil
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},
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},
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}
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sort.Sort(cli.FlagsByName(app.Flags))
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sort.Sort(cli.CommandsByName(app.Commands))
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app.Run(os.Args)
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}
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```
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Will result in help output like:
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```
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--config FILE, -c FILE Load configuration from FILE
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--lang value, -l value Language for the greeting (default: "english")
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```
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#### Values from the Environment
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You can also have the default value set from the environment via `EnvVar`. e.g.
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@ -889,16 +960,13 @@ SUPPORT: support@awesometown.example.com
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cli.AppHelpTemplate = `NAME:
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{{.Name}} - {{.Usage}}
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USAGE:
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{{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command
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[command options]{{end}} {{if
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.ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}
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{{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}
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{{if len .Authors}}
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AUTHOR(S):
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AUTHOR:
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{{range .Authors}}{{ . }}{{end}}
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{{end}}{{if .Commands}}
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COMMANDS:
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{{range .Commands}}{{if not .HideHelp}} {{join .Names ", "}}{{ "\t"
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}}{{.Usage}}{{ "\n" }}{{end}}{{end}}{{end}}{{if .VisibleFlags}}
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{{range .Commands}}{{if not .HideHelp}} {{join .Names ", "}}{{ "\t"}}{{.Usage}}{{ "\n" }}{{end}}{{end}}{{end}}{{if .VisibleFlags}}
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GLOBAL OPTIONS:
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{{range .VisibleFlags}}{{.}}
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{{end}}{{end}}{{if .Copyright }}
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@ -6,9 +6,7 @@ import (
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"io/ioutil"
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"os"
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"path/filepath"
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"reflect"
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"sort"
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"strings"
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"time"
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)
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@ -19,11 +17,8 @@ var (
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contactSysadmin = "This is an error in the application. Please contact the distributor of this application if this is not you."
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errNonFuncAction = NewExitError("ERROR invalid Action type. "+
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fmt.Sprintf("Must be a func of type `cli.ActionFunc`. %s", contactSysadmin)+
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fmt.Sprintf("See %s", appActionDeprecationURL), 2)
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errInvalidActionSignature = NewExitError("ERROR invalid Action signature. "+
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fmt.Sprintf("Must be `cli.ActionFunc`. %s", contactSysadmin)+
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errInvalidActionType = NewExitError("ERROR invalid Action type. "+
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fmt.Sprintf("Must be `func(*Context`)` or `func(*Context) error). %s", contactSysadmin)+
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fmt.Sprintf("See %s", appActionDeprecationURL), 2)
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)
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@ -42,6 +37,8 @@ type App struct {
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ArgsUsage string
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// Version of the program
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Version string
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// Description of the program
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Description string
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// List of commands to execute
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Commands []Command
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// List of flags to parse
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@ -88,6 +85,12 @@ type App struct {
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ErrWriter io.Writer
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// Other custom info
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Metadata map[string]interface{}
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// Carries a function which returns app specific info.
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ExtraInfo func() map[string]string
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// CustomAppHelpTemplate the text template for app help topic.
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// cli.go uses text/template to render templates. You can
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// render custom help text by setting this variable.
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CustomAppHelpTemplate string
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didSetup bool
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}
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@ -148,10 +151,6 @@ func (a *App) Setup() {
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}
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}
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if a.EnableBashCompletion {
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a.appendFlag(BashCompletionFlag)
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}
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if !a.HideVersion {
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a.appendFlag(VersionFlag)
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}
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@ -165,6 +164,10 @@ func (a *App) Setup() {
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if a.Metadata == nil {
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a.Metadata = make(map[string]interface{})
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}
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if a.Writer == nil {
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a.Writer = os.Stdout
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}
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}
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// Run is the entry point to the cli app. Parses the arguments slice and routes
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@ -172,8 +175,20 @@ func (a *App) Setup() {
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func (a *App) Run(arguments []string) (err error) {
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a.Setup()
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// handle the completion flag separately from the flagset since
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// completion could be attempted after a flag, but before its value was put
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// on the command line. this causes the flagset to interpret the completion
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// flag name as the value of the flag before it which is undesirable
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// note that we can only do this because the shell autocomplete function
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// always appends the completion flag at the end of the command
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shellComplete, arguments := checkShellCompleteFlag(a, arguments)
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// parse flags
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set := flagSet(a.Name, a.Flags)
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set, err := flagSet(a.Name, a.Flags)
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if err != nil {
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return err
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}
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set.SetOutput(ioutil.Discard)
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err = set.Parse(arguments[1:])
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nerr := normalizeFlags(a.Flags, set)
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@ -183,6 +198,7 @@ func (a *App) Run(arguments []string) (err error) {
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ShowAppHelp(context)
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return nerr
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}
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context.shellComplete = shellComplete
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if checkCompletions(context) {
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return nil
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@ -194,7 +210,7 @@ func (a *App) Run(arguments []string) (err error) {
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HandleExitCoder(err)
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return err
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}
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fmt.Fprintf(a.Writer, "%s\n\n", "Incorrect Usage.")
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fmt.Fprintf(a.Writer, "%s %s\n\n", "Incorrect Usage.", err.Error())
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ShowAppHelp(context)
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return err
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}
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@ -224,7 +240,6 @@ func (a *App) Run(arguments []string) (err error) {
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if a.Before != nil {
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beforeErr := a.Before(context)
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if beforeErr != nil {
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fmt.Fprintf(a.Writer, "%v\n\n", beforeErr)
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ShowAppHelp(context)
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HandleExitCoder(beforeErr)
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err = beforeErr
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@ -241,6 +256,10 @@ func (a *App) Run(arguments []string) (err error) {
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}
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}
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if a.Action == nil {
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a.Action = helpCommand.Action
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}
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// Run default Action
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err = HandleAction(a.Action, context)
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@ -282,13 +301,12 @@ func (a *App) RunAsSubcommand(ctx *Context) (err error) {
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}
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a.Commands = newCmds
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// append flags
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if a.EnableBashCompletion {
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a.appendFlag(BashCompletionFlag)
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// parse flags
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set, err := flagSet(a.Name, a.Flags)
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if err != nil {
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return err
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}
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// parse flags
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set := flagSet(a.Name, a.Flags)
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set.SetOutput(ioutil.Discard)
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err = set.Parse(ctx.Args().Tail())
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nerr := normalizeFlags(a.Flags, set)
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@ -315,7 +333,7 @@ func (a *App) RunAsSubcommand(ctx *Context) (err error) {
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HandleExitCoder(err)
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return err
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}
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fmt.Fprintf(a.Writer, "%s\n\n", "Incorrect Usage.")
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fmt.Fprintf(a.Writer, "%s %s\n\n", "Incorrect Usage.", err.Error())
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ShowSubcommandHelp(context)
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return err
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}
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@ -456,47 +474,24 @@ type Author struct {
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func (a Author) String() string {
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e := ""
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if a.Email != "" {
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e = "<" + a.Email + "> "
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e = " <" + a.Email + ">"
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}
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return fmt.Sprintf("%v %v", a.Name, e)
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return fmt.Sprintf("%v%v", a.Name, e)
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}
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// HandleAction uses ✧✧✧reflection✧✧✧ to figure out if the given Action is an
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// ActionFunc, a func with the legacy signature for Action, or some other
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// invalid thing. If it's an ActionFunc or a func with the legacy signature for
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// Action, the func is run!
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// HandleAction attempts to figure out which Action signature was used. If
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// it's an ActionFunc or a func with the legacy signature for Action, the func
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// is run!
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func HandleAction(action interface{}, context *Context) (err error) {
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defer func() {
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if r := recover(); r != nil {
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// Try to detect a known reflection error from *this scope*, rather than
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// swallowing all panics that may happen when calling an Action func.
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s := fmt.Sprintf("%v", r)
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if strings.HasPrefix(s, "reflect: ") && strings.Contains(s, "too many input arguments") {
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err = NewExitError(fmt.Sprintf("ERROR unknown Action error: %v.", r), 2)
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} else {
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panic(r)
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}
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}
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}()
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if reflect.TypeOf(action).Kind() != reflect.Func {
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return errNonFuncAction
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}
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vals := reflect.ValueOf(action).Call([]reflect.Value{reflect.ValueOf(context)})
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if len(vals) == 0 {
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if a, ok := action.(ActionFunc); ok {
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return a(context)
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} else if a, ok := action.(func(*Context) error); ok {
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return a(context)
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} else if a, ok := action.(func(*Context)); ok { // deprecated function signature
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a(context)
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return nil
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} else {
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return errInvalidActionType
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}
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if len(vals) > 1 {
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return errInvalidActionSignature
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}
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if retErr, ok := vals[0].Interface().(error); vals[0].IsValid() && ok {
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return retErr
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}
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return err
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}
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@ -12,6 +12,7 @@
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// app.Usage = "say a greeting"
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// app.Action = func(c *cli.Context) error {
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// println("Greetings")
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// return nil
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// }
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//
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// app.Run(os.Args)
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@ -59,6 +59,25 @@ type Command struct {
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// Full name of command for help, defaults to full command name, including parent commands.
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HelpName string
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commandNamePath []string
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// CustomHelpTemplate the text template for the command help topic.
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// cli.go uses text/template to render templates. You can
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// render custom help text by setting this variable.
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CustomHelpTemplate string
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}
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type CommandsByName []Command
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func (c CommandsByName) Len() int {
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return len(c)
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}
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func (c CommandsByName) Less(i, j int) bool {
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return c[i].Name < c[j].Name
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}
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func (c CommandsByName) Swap(i, j int) {
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c[i], c[j] = c[j], c[i]
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}
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// FullName returns the full name of the command.
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@ -87,11 +106,10 @@ func (c Command) Run(ctx *Context) (err error) {
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)
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}
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if ctx.App.EnableBashCompletion {
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c.Flags = append(c.Flags, BashCompletionFlag)
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set, err := flagSet(c.Name, c.Flags)
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if err != nil {
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return err
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}
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set := flagSet(c.Name, c.Flags)
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set.SetOutput(ioutil.Discard)
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if c.SkipFlagParsing {
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@ -132,18 +150,6 @@ func (c Command) Run(ctx *Context) (err error) {
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err = set.Parse(ctx.Args().Tail())
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}
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if err != nil {
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if c.OnUsageError != nil {
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err := c.OnUsageError(ctx, err, false)
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HandleExitCoder(err)
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return err
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}
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fmt.Fprintln(ctx.App.Writer, "Incorrect Usage.")
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fmt.Fprintln(ctx.App.Writer)
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ShowCommandHelp(ctx, c.Name)
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return err
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}
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nerr := normalizeFlags(c.Flags, set)
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if nerr != nil {
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fmt.Fprintln(ctx.App.Writer, nerr)
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@ -153,11 +159,23 @@ func (c Command) Run(ctx *Context) (err error) {
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}
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context := NewContext(ctx.App, set, ctx)
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context.Command = c
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if checkCommandCompletions(context, c.Name) {
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return nil
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}
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if err != nil {
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if c.OnUsageError != nil {
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err := c.OnUsageError(context, err, false)
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HandleExitCoder(err)
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return err
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}
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fmt.Fprintln(context.App.Writer, "Incorrect Usage:", err.Error())
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fmt.Fprintln(context.App.Writer)
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ShowCommandHelp(context, c.Name)
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return err
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}
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if checkCommandHelp(context, c.Name) {
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return nil
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}
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|
@ -179,15 +197,16 @@ func (c Command) Run(ctx *Context) (err error) {
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if c.Before != nil {
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err = c.Before(context)
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if err != nil {
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fmt.Fprintln(ctx.App.Writer, err)
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fmt.Fprintln(ctx.App.Writer)
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ShowCommandHelp(ctx, c.Name)
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ShowCommandHelp(context, c.Name)
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HandleExitCoder(err)
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return err
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}
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}
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context.Command = c
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if c.Action == nil {
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c.Action = helpSubcommand.Action
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}
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err = HandleAction(c.Action, context)
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if err != nil {
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@ -228,14 +247,13 @@ func (c Command) startApp(ctx *Context) error {
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app.HelpName = app.Name
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}
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if c.Description != "" {
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app.Usage = c.Description
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} else {
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app.Usage = c.Usage
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}
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app.Description = c.Description
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app.ArgsUsage = c.ArgsUsage
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// set CommandNotFound
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app.CommandNotFound = ctx.App.CommandNotFound
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app.CustomAppHelpTemplate = c.CustomHelpTemplate
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// set the flags and commands
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app.Commands = c.Subcommands
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@ -248,6 +266,7 @@ func (c Command) startApp(ctx *Context) error {
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app.Author = ctx.App.Author
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app.Email = ctx.App.Email
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app.Writer = ctx.App.Writer
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app.ErrWriter = ctx.App.ErrWriter
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app.categories = CommandCategories{}
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for _, command := range c.Subcommands {
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|
@ -270,6 +289,7 @@ func (c Command) startApp(ctx *Context) error {
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} else {
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app.Action = helpSubcommand.Action
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}
|
||||
app.OnUsageError = c.OnUsageError
|
||||
|
||||
for index, cc := range app.Commands {
|
||||
app.Commands[index].commandNamePath = []string{c.Name, cc.Name}
|
||||
|
|
|
@ -3,9 +3,9 @@ package cli
|
|||
import (
|
||||
"errors"
|
||||
"flag"
|
||||
"os"
|
||||
"reflect"
|
||||
"strings"
|
||||
"syscall"
|
||||
)
|
||||
|
||||
// Context is a type that is passed through to
|
||||
|
@ -15,6 +15,7 @@ import (
|
|||
type Context struct {
|
||||
App *App
|
||||
Command Command
|
||||
shellComplete bool
|
||||
flagSet *flag.FlagSet
|
||||
setFlags map[string]bool
|
||||
parentContext *Context
|
||||
|
@ -22,7 +23,13 @@ type Context struct {
|
|||
|
||||
// NewContext creates a new context. For use in when invoking an App or Command action.
|
||||
func NewContext(app *App, set *flag.FlagSet, parentCtx *Context) *Context {
|
||||
return &Context{App: app, flagSet: set, parentContext: parentCtx}
|
||||
c := &Context{App: app, flagSet: set, parentContext: parentCtx}
|
||||
|
||||
if parentCtx != nil {
|
||||
c.shellComplete = parentCtx.shellComplete
|
||||
}
|
||||
|
||||
return c
|
||||
}
|
||||
|
||||
// NumFlags returns the number of flags set
|
||||
|
@ -32,11 +39,13 @@ func (c *Context) NumFlags() int {
|
|||
|
||||
// Set sets a context flag to a value.
|
||||
func (c *Context) Set(name, value string) error {
|
||||
c.setFlags = nil
|
||||
return c.flagSet.Set(name, value)
|
||||
}
|
||||
|
||||
// GlobalSet sets a context flag to a value on the global flagset
|
||||
func (c *Context) GlobalSet(name, value string) error {
|
||||
globalContext(c).setFlags = nil
|
||||
return globalContext(c).flagSet.Set(name, value)
|
||||
}
|
||||
|
||||
|
@ -91,7 +100,7 @@ func (c *Context) IsSet(name string) bool {
|
|||
|
||||
eachName(envVarValue.String(), func(envVar string) {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
if _, ok := syscall.Getenv(envVar); ok {
|
||||
c.setFlags[name] = true
|
||||
return
|
||||
}
|
||||
|
@ -147,6 +156,11 @@ func (c *Context) Parent() *Context {
|
|||
return c.parentContext
|
||||
}
|
||||
|
||||
// value returns the value of the flag coressponding to `name`
|
||||
func (c *Context) value(name string) interface{} {
|
||||
return c.flagSet.Lookup(name).Value.(flag.Getter).Get()
|
||||
}
|
||||
|
||||
// Args contains apps console arguments
|
||||
type Args []string
|
||||
|
||||
|
|
|
@ -24,7 +24,7 @@ func NewMultiError(err ...error) MultiError {
|
|||
return MultiError{Errors: err}
|
||||
}
|
||||
|
||||
// Error implents the error interface.
|
||||
// Error implements the error interface.
|
||||
func (m MultiError) Error() string {
|
||||
errs := make([]string, len(m.Errors))
|
||||
for i, err := range m.Errors {
|
||||
|
@ -34,6 +34,10 @@ func (m MultiError) Error() string {
|
|||
return strings.Join(errs, "\n")
|
||||
}
|
||||
|
||||
type ErrorFormatter interface {
|
||||
Format(s fmt.State, verb rune)
|
||||
}
|
||||
|
||||
// ExitCoder is the interface checked by `App` and `Command` for a custom exit
|
||||
// code
|
||||
type ExitCoder interface {
|
||||
|
@ -44,11 +48,11 @@ type ExitCoder interface {
|
|||
// ExitError fulfills both the builtin `error` interface and `ExitCoder`
|
||||
type ExitError struct {
|
||||
exitCode int
|
||||
message string
|
||||
message interface{}
|
||||
}
|
||||
|
||||
// NewExitError makes a new *ExitError
|
||||
func NewExitError(message string, exitCode int) *ExitError {
|
||||
func NewExitError(message interface{}, exitCode int) *ExitError {
|
||||
return &ExitError{
|
||||
exitCode: exitCode,
|
||||
message: message,
|
||||
|
@ -58,7 +62,7 @@ func NewExitError(message string, exitCode int) *ExitError {
|
|||
// Error returns the string message, fulfilling the interface required by
|
||||
// `error`
|
||||
func (ee *ExitError) Error() string {
|
||||
return ee.message
|
||||
return fmt.Sprintf("%v", ee.message)
|
||||
}
|
||||
|
||||
// ExitCode returns the exit code, fulfilling the interface required by
|
||||
|
@ -70,7 +74,7 @@ func (ee *ExitError) ExitCode() int {
|
|||
// HandleExitCoder checks if the error fulfills the ExitCoder interface, and if
|
||||
// so prints the error to stderr (if it is non-empty) and calls OsExiter with the
|
||||
// given exit code. If the given error is a MultiError, then this func is
|
||||
// called on all members of the Errors slice.
|
||||
// called on all members of the Errors slice and calls OsExiter with the last exit code.
|
||||
func HandleExitCoder(err error) {
|
||||
if err == nil {
|
||||
return
|
||||
|
@ -78,21 +82,34 @@ func HandleExitCoder(err error) {
|
|||
|
||||
if exitErr, ok := err.(ExitCoder); ok {
|
||||
if err.Error() != "" {
|
||||
if _, ok := exitErr.(ErrorFormatter); ok {
|
||||
fmt.Fprintf(ErrWriter, "%+v\n", err)
|
||||
} else {
|
||||
fmt.Fprintln(ErrWriter, err)
|
||||
}
|
||||
}
|
||||
OsExiter(exitErr.ExitCode())
|
||||
return
|
||||
}
|
||||
|
||||
if multiErr, ok := err.(MultiError); ok {
|
||||
for _, merr := range multiErr.Errors {
|
||||
HandleExitCoder(merr)
|
||||
}
|
||||
code := handleMultiError(multiErr)
|
||||
OsExiter(code)
|
||||
return
|
||||
}
|
||||
|
||||
if err.Error() != "" {
|
||||
fmt.Fprintln(ErrWriter, err)
|
||||
}
|
||||
OsExiter(1)
|
||||
}
|
||||
|
||||
func handleMultiError(multiErr MultiError) int {
|
||||
code := 1
|
||||
for _, merr := range multiErr.Errors {
|
||||
if multiErr2, ok := merr.(MultiError); ok {
|
||||
code = handleMultiError(multiErr2)
|
||||
} else {
|
||||
fmt.Fprintln(ErrWriter, merr)
|
||||
if exitErr, ok := merr.(ExitCoder); ok {
|
||||
code = exitErr.ExitCode()
|
||||
}
|
||||
}
|
||||
}
|
||||
return code
|
||||
}
|
||||
|
|
|
@ -3,24 +3,24 @@ package cli
|
|||
import (
|
||||
"flag"
|
||||
"fmt"
|
||||
"os"
|
||||
"reflect"
|
||||
"runtime"
|
||||
"strconv"
|
||||
"strings"
|
||||
"syscall"
|
||||
"time"
|
||||
)
|
||||
|
||||
const defaultPlaceholder = "value"
|
||||
|
||||
// BashCompletionFlag enables bash-completion for all commands and subcommands
|
||||
var BashCompletionFlag = BoolFlag{
|
||||
var BashCompletionFlag Flag = BoolFlag{
|
||||
Name: "generate-bash-completion",
|
||||
Hidden: true,
|
||||
}
|
||||
|
||||
// VersionFlag prints the version for the application
|
||||
var VersionFlag = BoolFlag{
|
||||
var VersionFlag Flag = BoolFlag{
|
||||
Name: "version, v",
|
||||
Usage: "print the version",
|
||||
}
|
||||
|
@ -28,7 +28,7 @@ var VersionFlag = BoolFlag{
|
|||
// HelpFlag prints the help for all commands and subcommands
|
||||
// Set to the zero value (BoolFlag{}) to disable flag -- keeps subcommand
|
||||
// unless HideHelp is set to true)
|
||||
var HelpFlag = BoolFlag{
|
||||
var HelpFlag Flag = BoolFlag{
|
||||
Name: "help, h",
|
||||
Usage: "show help",
|
||||
}
|
||||
|
@ -37,6 +37,21 @@ var HelpFlag = BoolFlag{
|
|||
// to display a flag.
|
||||
var FlagStringer FlagStringFunc = stringifyFlag
|
||||
|
||||
// FlagsByName is a slice of Flag.
|
||||
type FlagsByName []Flag
|
||||
|
||||
func (f FlagsByName) Len() int {
|
||||
return len(f)
|
||||
}
|
||||
|
||||
func (f FlagsByName) Less(i, j int) bool {
|
||||
return f[i].GetName() < f[j].GetName()
|
||||
}
|
||||
|
||||
func (f FlagsByName) Swap(i, j int) {
|
||||
f[i], f[j] = f[j], f[i]
|
||||
}
|
||||
|
||||
// Flag is a common interface related to parsing flags in cli.
|
||||
// For more advanced flag parsing techniques, it is recommended that
|
||||
// this interface be implemented.
|
||||
|
@ -47,13 +62,29 @@ type Flag interface {
|
|||
GetName() string
|
||||
}
|
||||
|
||||
func flagSet(name string, flags []Flag) *flag.FlagSet {
|
||||
// errorableFlag is an interface that allows us to return errors during apply
|
||||
// it allows flags defined in this library to return errors in a fashion backwards compatible
|
||||
// TODO remove in v2 and modify the existing Flag interface to return errors
|
||||
type errorableFlag interface {
|
||||
Flag
|
||||
|
||||
ApplyWithError(*flag.FlagSet) error
|
||||
}
|
||||
|
||||
func flagSet(name string, flags []Flag) (*flag.FlagSet, error) {
|
||||
set := flag.NewFlagSet(name, flag.ContinueOnError)
|
||||
|
||||
for _, f := range flags {
|
||||
//TODO remove in v2 when errorableFlag is removed
|
||||
if ef, ok := f.(errorableFlag); ok {
|
||||
if err := ef.ApplyWithError(set); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
} else {
|
||||
f.Apply(set)
|
||||
}
|
||||
return set
|
||||
}
|
||||
return set, nil
|
||||
}
|
||||
|
||||
func eachName(longName string, fn func(string)) {
|
||||
|
@ -72,13 +103,22 @@ type Generic interface {
|
|||
|
||||
// Apply takes the flagset and calls Set on the generic flag with the value
|
||||
// provided by the user for parsing by the flag
|
||||
// Ignores parsing errors
|
||||
func (f GenericFlag) Apply(set *flag.FlagSet) {
|
||||
f.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// ApplyWithError takes the flagset and calls Set on the generic flag with the value
|
||||
// provided by the user for parsing by the flag
|
||||
func (f GenericFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
val := f.Value
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
val.Set(envVal)
|
||||
if envVal, ok := syscall.Getenv(envVar); ok {
|
||||
if err := val.Set(envVal); err != nil {
|
||||
return fmt.Errorf("could not parse %s as value for flag %s: %s", envVal, f.Name, err)
|
||||
}
|
||||
break
|
||||
}
|
||||
}
|
||||
|
@ -87,9 +127,11 @@ func (f GenericFlag) Apply(set *flag.FlagSet) {
|
|||
eachName(f.Name, func(name string) {
|
||||
set.Var(f.Value, name, f.Usage)
|
||||
})
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// StringSlice is an opaque type for []string to satisfy flag.Value
|
||||
// StringSlice is an opaque type for []string to satisfy flag.Value and flag.Getter
|
||||
type StringSlice []string
|
||||
|
||||
// Set appends the string value to the list of values
|
||||
|
@ -108,16 +150,29 @@ func (f *StringSlice) Value() []string {
|
|||
return *f
|
||||
}
|
||||
|
||||
// Get returns the slice of strings set by this flag
|
||||
func (f *StringSlice) Get() interface{} {
|
||||
return *f
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
// Ignores errors
|
||||
func (f StringSliceFlag) Apply(set *flag.FlagSet) {
|
||||
f.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// ApplyWithError populates the flag given the flag set and environment
|
||||
func (f StringSliceFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
if envVal, ok := syscall.Getenv(envVar); ok {
|
||||
newVal := &StringSlice{}
|
||||
for _, s := range strings.Split(envVal, ",") {
|
||||
s = strings.TrimSpace(s)
|
||||
newVal.Set(s)
|
||||
if err := newVal.Set(s); err != nil {
|
||||
return fmt.Errorf("could not parse %s as string value for flag %s: %s", envVal, f.Name, err)
|
||||
}
|
||||
}
|
||||
f.Value = newVal
|
||||
break
|
||||
|
@ -131,9 +186,11 @@ func (f StringSliceFlag) Apply(set *flag.FlagSet) {
|
|||
}
|
||||
set.Var(f.Value, name, f.Usage)
|
||||
})
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// IntSlice is an opaque type for []int to satisfy flag.Value
|
||||
// IntSlice is an opaque type for []int to satisfy flag.Value and flag.Getter
|
||||
type IntSlice []int
|
||||
|
||||
// Set parses the value into an integer and appends it to the list of values
|
||||
|
@ -156,18 +213,28 @@ func (f *IntSlice) Value() []int {
|
|||
return *f
|
||||
}
|
||||
|
||||
// Get returns the slice of ints set by this flag
|
||||
func (f *IntSlice) Get() interface{} {
|
||||
return *f
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
// Ignores errors
|
||||
func (f IntSliceFlag) Apply(set *flag.FlagSet) {
|
||||
f.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// ApplyWithError populates the flag given the flag set and environment
|
||||
func (f IntSliceFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
if envVal, ok := syscall.Getenv(envVar); ok {
|
||||
newVal := &IntSlice{}
|
||||
for _, s := range strings.Split(envVal, ",") {
|
||||
s = strings.TrimSpace(s)
|
||||
err := newVal.Set(s)
|
||||
if err != nil {
|
||||
fmt.Fprintf(ErrWriter, err.Error())
|
||||
if err := newVal.Set(s); err != nil {
|
||||
return fmt.Errorf("could not parse %s as int slice value for flag %s: %s", envVal, f.Name, err)
|
||||
}
|
||||
}
|
||||
f.Value = newVal
|
||||
|
@ -182,9 +249,11 @@ func (f IntSliceFlag) Apply(set *flag.FlagSet) {
|
|||
}
|
||||
set.Var(f.Value, name, f.Usage)
|
||||
})
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Int64Slice is an opaque type for []int to satisfy flag.Value
|
||||
// Int64Slice is an opaque type for []int to satisfy flag.Value and flag.Getter
|
||||
type Int64Slice []int64
|
||||
|
||||
// Set parses the value into an integer and appends it to the list of values
|
||||
|
@ -207,18 +276,28 @@ func (f *Int64Slice) Value() []int64 {
|
|||
return *f
|
||||
}
|
||||
|
||||
// Get returns the slice of ints set by this flag
|
||||
func (f *Int64Slice) Get() interface{} {
|
||||
return *f
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
// Ignores errors
|
||||
func (f Int64SliceFlag) Apply(set *flag.FlagSet) {
|
||||
f.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// ApplyWithError populates the flag given the flag set and environment
|
||||
func (f Int64SliceFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
if envVal, ok := syscall.Getenv(envVar); ok {
|
||||
newVal := &Int64Slice{}
|
||||
for _, s := range strings.Split(envVal, ",") {
|
||||
s = strings.TrimSpace(s)
|
||||
err := newVal.Set(s)
|
||||
if err != nil {
|
||||
fmt.Fprintf(ErrWriter, err.Error())
|
||||
if err := newVal.Set(s); err != nil {
|
||||
return fmt.Errorf("could not parse %s as int64 slice value for flag %s: %s", envVal, f.Name, err)
|
||||
}
|
||||
}
|
||||
f.Value = newVal
|
||||
|
@ -233,19 +312,33 @@ func (f Int64SliceFlag) Apply(set *flag.FlagSet) {
|
|||
}
|
||||
set.Var(f.Value, name, f.Usage)
|
||||
})
|
||||
return nil
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
// Ignores errors
|
||||
func (f BoolFlag) Apply(set *flag.FlagSet) {
|
||||
f.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// ApplyWithError populates the flag given the flag set and environment
|
||||
func (f BoolFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
val := false
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
envValBool, err := strconv.ParseBool(envVal)
|
||||
if err == nil {
|
||||
val = envValBool
|
||||
if envVal, ok := syscall.Getenv(envVar); ok {
|
||||
if envVal == "" {
|
||||
val = false
|
||||
break
|
||||
}
|
||||
|
||||
envValBool, err := strconv.ParseBool(envVal)
|
||||
if err != nil {
|
||||
return fmt.Errorf("could not parse %s as bool value for flag %s: %s", envVal, f.Name, err)
|
||||
}
|
||||
|
||||
val = envValBool
|
||||
break
|
||||
}
|
||||
}
|
||||
|
@ -258,20 +351,35 @@ func (f BoolFlag) Apply(set *flag.FlagSet) {
|
|||
}
|
||||
set.Bool(name, val, f.Usage)
|
||||
})
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
// Ignores errors
|
||||
func (f BoolTFlag) Apply(set *flag.FlagSet) {
|
||||
f.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// ApplyWithError populates the flag given the flag set and environment
|
||||
func (f BoolTFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
val := true
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
envValBool, err := strconv.ParseBool(envVal)
|
||||
if err == nil {
|
||||
val = envValBool
|
||||
if envVal, ok := syscall.Getenv(envVar); ok {
|
||||
if envVal == "" {
|
||||
val = false
|
||||
break
|
||||
}
|
||||
|
||||
envValBool, err := strconv.ParseBool(envVal)
|
||||
if err != nil {
|
||||
return fmt.Errorf("could not parse %s as bool value for flag %s: %s", envVal, f.Name, err)
|
||||
}
|
||||
|
||||
val = envValBool
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
|
@ -283,14 +391,22 @@ func (f BoolTFlag) Apply(set *flag.FlagSet) {
|
|||
}
|
||||
set.Bool(name, val, f.Usage)
|
||||
})
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
// Ignores errors
|
||||
func (f StringFlag) Apply(set *flag.FlagSet) {
|
||||
f.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// ApplyWithError populates the flag given the flag set and environment
|
||||
func (f StringFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
if envVal, ok := syscall.Getenv(envVar); ok {
|
||||
f.Value = envVal
|
||||
break
|
||||
}
|
||||
|
@ -304,22 +420,31 @@ func (f StringFlag) Apply(set *flag.FlagSet) {
|
|||
}
|
||||
set.String(name, f.Value, f.Usage)
|
||||
})
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
// Ignores errors
|
||||
func (f IntFlag) Apply(set *flag.FlagSet) {
|
||||
f.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// ApplyWithError populates the flag given the flag set and environment
|
||||
func (f IntFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
if envVal, ok := syscall.Getenv(envVar); ok {
|
||||
envValInt, err := strconv.ParseInt(envVal, 0, 64)
|
||||
if err == nil {
|
||||
if err != nil {
|
||||
return fmt.Errorf("could not parse %s as int value for flag %s: %s", envVal, f.Name, err)
|
||||
}
|
||||
f.Value = int(envValInt)
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
eachName(f.Name, func(name string) {
|
||||
if f.Destination != nil {
|
||||
|
@ -328,22 +453,32 @@ func (f IntFlag) Apply(set *flag.FlagSet) {
|
|||
}
|
||||
set.Int(name, f.Value, f.Usage)
|
||||
})
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
// Ignores errors
|
||||
func (f Int64Flag) Apply(set *flag.FlagSet) {
|
||||
f.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// ApplyWithError populates the flag given the flag set and environment
|
||||
func (f Int64Flag) ApplyWithError(set *flag.FlagSet) error {
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
if envVal, ok := syscall.Getenv(envVar); ok {
|
||||
envValInt, err := strconv.ParseInt(envVal, 0, 64)
|
||||
if err == nil {
|
||||
if err != nil {
|
||||
return fmt.Errorf("could not parse %s as int value for flag %s: %s", envVal, f.Name, err)
|
||||
}
|
||||
|
||||
f.Value = envValInt
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
eachName(f.Name, func(name string) {
|
||||
if f.Destination != nil {
|
||||
|
@ -352,22 +487,32 @@ func (f Int64Flag) Apply(set *flag.FlagSet) {
|
|||
}
|
||||
set.Int64(name, f.Value, f.Usage)
|
||||
})
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
// Ignores errors
|
||||
func (f UintFlag) Apply(set *flag.FlagSet) {
|
||||
f.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// ApplyWithError populates the flag given the flag set and environment
|
||||
func (f UintFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
if envVal, ok := syscall.Getenv(envVar); ok {
|
||||
envValInt, err := strconv.ParseUint(envVal, 0, 64)
|
||||
if err == nil {
|
||||
if err != nil {
|
||||
return fmt.Errorf("could not parse %s as uint value for flag %s: %s", envVal, f.Name, err)
|
||||
}
|
||||
|
||||
f.Value = uint(envValInt)
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
eachName(f.Name, func(name string) {
|
||||
if f.Destination != nil {
|
||||
|
@ -376,22 +521,32 @@ func (f UintFlag) Apply(set *flag.FlagSet) {
|
|||
}
|
||||
set.Uint(name, f.Value, f.Usage)
|
||||
})
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
// Ignores errors
|
||||
func (f Uint64Flag) Apply(set *flag.FlagSet) {
|
||||
f.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// ApplyWithError populates the flag given the flag set and environment
|
||||
func (f Uint64Flag) ApplyWithError(set *flag.FlagSet) error {
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
if envVal, ok := syscall.Getenv(envVar); ok {
|
||||
envValInt, err := strconv.ParseUint(envVal, 0, 64)
|
||||
if err == nil {
|
||||
if err != nil {
|
||||
return fmt.Errorf("could not parse %s as uint64 value for flag %s: %s", envVal, f.Name, err)
|
||||
}
|
||||
|
||||
f.Value = uint64(envValInt)
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
eachName(f.Name, func(name string) {
|
||||
if f.Destination != nil {
|
||||
|
@ -400,22 +555,32 @@ func (f Uint64Flag) Apply(set *flag.FlagSet) {
|
|||
}
|
||||
set.Uint64(name, f.Value, f.Usage)
|
||||
})
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
// Ignores errors
|
||||
func (f DurationFlag) Apply(set *flag.FlagSet) {
|
||||
f.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// ApplyWithError populates the flag given the flag set and environment
|
||||
func (f DurationFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
if envVal, ok := syscall.Getenv(envVar); ok {
|
||||
envValDuration, err := time.ParseDuration(envVal)
|
||||
if err == nil {
|
||||
if err != nil {
|
||||
return fmt.Errorf("could not parse %s as duration for flag %s: %s", envVal, f.Name, err)
|
||||
}
|
||||
|
||||
f.Value = envValDuration
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
eachName(f.Name, func(name string) {
|
||||
if f.Destination != nil {
|
||||
|
@ -424,18 +589,29 @@ func (f DurationFlag) Apply(set *flag.FlagSet) {
|
|||
}
|
||||
set.Duration(name, f.Value, f.Usage)
|
||||
})
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
// Ignores errors
|
||||
func (f Float64Flag) Apply(set *flag.FlagSet) {
|
||||
f.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// ApplyWithError populates the flag given the flag set and environment
|
||||
func (f Float64Flag) ApplyWithError(set *flag.FlagSet) error {
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
if envVal, ok := syscall.Getenv(envVar); ok {
|
||||
envValFloat, err := strconv.ParseFloat(envVal, 10)
|
||||
if err == nil {
|
||||
f.Value = float64(envValFloat)
|
||||
if err != nil {
|
||||
return fmt.Errorf("could not parse %s as float64 value for flag %s: %s", envVal, f.Name, err)
|
||||
}
|
||||
|
||||
f.Value = float64(envValFloat)
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
|
@ -447,12 +623,15 @@ func (f Float64Flag) Apply(set *flag.FlagSet) {
|
|||
}
|
||||
set.Float64(name, f.Value, f.Usage)
|
||||
})
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func visibleFlags(fl []Flag) []Flag {
|
||||
visible := []Flag{}
|
||||
for _, flag := range fl {
|
||||
if !flagValue(flag).FieldByName("Hidden").Bool() {
|
||||
field := flagValue(flag).FieldByName("Hidden")
|
||||
if !field.IsValid() || !field.Bool() {
|
||||
visible = append(visible, flag)
|
||||
}
|
||||
}
|
||||
|
@ -545,9 +724,8 @@ func stringifyFlag(f Flag) string {
|
|||
|
||||
needsPlaceholder := false
|
||||
defaultValueString := ""
|
||||
val := fv.FieldByName("Value")
|
||||
|
||||
if val.IsValid() {
|
||||
if val := fv.FieldByName("Value"); val.IsValid() {
|
||||
needsPlaceholder = true
|
||||
defaultValueString = fmt.Sprintf(" (default: %v)", val.Interface())
|
||||
|
||||
|
|
|
@ -13,27 +13,31 @@ import (
|
|||
// cli.go uses text/template to render templates. You can
|
||||
// render custom help text by setting this variable.
|
||||
var AppHelpTemplate = `NAME:
|
||||
{{.Name}} - {{.Usage}}
|
||||
{{.Name}}{{if .Usage}} - {{.Usage}}{{end}}
|
||||
|
||||
USAGE:
|
||||
{{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}
|
||||
{{if .Version}}{{if not .HideVersion}}
|
||||
{{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Version}}{{if not .HideVersion}}
|
||||
|
||||
VERSION:
|
||||
{{.Version}}
|
||||
{{end}}{{end}}{{if len .Authors}}
|
||||
AUTHOR(S):
|
||||
{{range .Authors}}{{.}}{{end}}
|
||||
{{end}}{{if .VisibleCommands}}
|
||||
{{.Version}}{{end}}{{end}}{{if .Description}}
|
||||
|
||||
DESCRIPTION:
|
||||
{{.Description}}{{end}}{{if len .Authors}}
|
||||
|
||||
AUTHOR{{with $length := len .Authors}}{{if ne 1 $length}}S{{end}}{{end}}:
|
||||
{{range $index, $author := .Authors}}{{if $index}}
|
||||
{{end}}{{$author}}{{end}}{{end}}{{if .VisibleCommands}}
|
||||
|
||||
COMMANDS:{{range .VisibleCategories}}{{if .Name}}
|
||||
{{.Name}}:{{end}}{{range .VisibleCommands}}
|
||||
{{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}
|
||||
{{end}}{{end}}{{if .VisibleFlags}}
|
||||
{{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}{{end}}{{end}}{{if .VisibleFlags}}
|
||||
|
||||
GLOBAL OPTIONS:
|
||||
{{range .VisibleFlags}}{{.}}
|
||||
{{end}}{{end}}{{if .Copyright}}
|
||||
{{range $index, $option := .VisibleFlags}}{{if $index}}
|
||||
{{end}}{{$option}}{{end}}{{end}}{{if .Copyright}}
|
||||
|
||||
COPYRIGHT:
|
||||
{{.Copyright}}
|
||||
{{end}}
|
||||
{{.Copyright}}{{end}}
|
||||
`
|
||||
|
||||
// CommandHelpTemplate is the text template for the command help topic.
|
||||
|
@ -43,7 +47,7 @@ var CommandHelpTemplate = `NAME:
|
|||
{{.HelpName}} - {{.Usage}}
|
||||
|
||||
USAGE:
|
||||
{{.HelpName}}{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{if .Category}}
|
||||
{{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}}{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Category}}
|
||||
|
||||
CATEGORY:
|
||||
{{.Category}}{{end}}{{if .Description}}
|
||||
|
@ -60,10 +64,10 @@ OPTIONS:
|
|||
// cli.go uses text/template to render templates. You can
|
||||
// render custom help text by setting this variable.
|
||||
var SubcommandHelpTemplate = `NAME:
|
||||
{{.HelpName}} - {{.Usage}}
|
||||
{{.HelpName}} - {{if .Description}}{{.Description}}{{else}}{{.Usage}}{{end}}
|
||||
|
||||
USAGE:
|
||||
{{.HelpName}} command{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}
|
||||
{{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}} command{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}
|
||||
|
||||
COMMANDS:{{range .VisibleCategories}}{{if .Name}}
|
||||
{{.Name}}:{{end}}{{range .VisibleCommands}}
|
||||
|
@ -108,17 +112,42 @@ var helpSubcommand = Command{
|
|||
// Prints help for the App or Command
|
||||
type helpPrinter func(w io.Writer, templ string, data interface{})
|
||||
|
||||
// Prints help for the App or Command with custom template function.
|
||||
type helpPrinterCustom func(w io.Writer, templ string, data interface{}, customFunc map[string]interface{})
|
||||
|
||||
// HelpPrinter is a function that writes the help output. If not set a default
|
||||
// is used. The function signature is:
|
||||
// func(w io.Writer, templ string, data interface{})
|
||||
var HelpPrinter helpPrinter = printHelp
|
||||
|
||||
// HelpPrinterCustom is same as HelpPrinter but
|
||||
// takes a custom function for template function map.
|
||||
var HelpPrinterCustom helpPrinterCustom = printHelpCustom
|
||||
|
||||
// VersionPrinter prints the version for the App
|
||||
var VersionPrinter = printVersion
|
||||
|
||||
// ShowAppHelpAndExit - Prints the list of subcommands for the app and exits with exit code.
|
||||
func ShowAppHelpAndExit(c *Context, exitCode int) {
|
||||
ShowAppHelp(c)
|
||||
os.Exit(exitCode)
|
||||
}
|
||||
|
||||
// ShowAppHelp is an action that displays the help.
|
||||
func ShowAppHelp(c *Context) error {
|
||||
func ShowAppHelp(c *Context) (err error) {
|
||||
if c.App.CustomAppHelpTemplate == "" {
|
||||
HelpPrinter(c.App.Writer, AppHelpTemplate, c.App)
|
||||
return
|
||||
}
|
||||
customAppData := func() map[string]interface{} {
|
||||
if c.App.ExtraInfo == nil {
|
||||
return nil
|
||||
}
|
||||
return map[string]interface{}{
|
||||
"ExtraInfo": c.App.ExtraInfo,
|
||||
}
|
||||
}
|
||||
HelpPrinterCustom(c.App.Writer, c.App.CustomAppHelpTemplate, c.App, customAppData())
|
||||
return nil
|
||||
}
|
||||
|
||||
|
@ -134,6 +163,12 @@ func DefaultAppComplete(c *Context) {
|
|||
}
|
||||
}
|
||||
|
||||
// ShowCommandHelpAndExit - exits with code after showing help
|
||||
func ShowCommandHelpAndExit(c *Context, command string, code int) {
|
||||
ShowCommandHelp(c, command)
|
||||
os.Exit(code)
|
||||
}
|
||||
|
||||
// ShowCommandHelp prints help for the given command
|
||||
func ShowCommandHelp(ctx *Context, command string) error {
|
||||
// show the subcommand help for a command with subcommands
|
||||
|
@ -144,7 +179,11 @@ func ShowCommandHelp(ctx *Context, command string) error {
|
|||
|
||||
for _, c := range ctx.App.Commands {
|
||||
if c.HasName(command) {
|
||||
if c.CustomHelpTemplate != "" {
|
||||
HelpPrinterCustom(ctx.App.Writer, c.CustomHelpTemplate, c, nil)
|
||||
} else {
|
||||
HelpPrinter(ctx.App.Writer, CommandHelpTemplate, c)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
@ -187,10 +226,15 @@ func ShowCommandCompletions(ctx *Context, command string) {
|
|||
}
|
||||
}
|
||||
|
||||
func printHelp(out io.Writer, templ string, data interface{}) {
|
||||
func printHelpCustom(out io.Writer, templ string, data interface{}, customFunc map[string]interface{}) {
|
||||
funcMap := template.FuncMap{
|
||||
"join": strings.Join,
|
||||
}
|
||||
if customFunc != nil {
|
||||
for key, value := range customFunc {
|
||||
funcMap[key] = value
|
||||
}
|
||||
}
|
||||
|
||||
w := tabwriter.NewWriter(out, 1, 8, 2, ' ', 0)
|
||||
t := template.Must(template.New("help").Funcs(funcMap).Parse(templ))
|
||||
|
@ -206,10 +250,14 @@ func printHelp(out io.Writer, templ string, data interface{}) {
|
|||
w.Flush()
|
||||
}
|
||||
|
||||
func printHelp(out io.Writer, templ string, data interface{}) {
|
||||
printHelpCustom(out, templ, data, nil)
|
||||
}
|
||||
|
||||
func checkVersion(c *Context) bool {
|
||||
found := false
|
||||
if VersionFlag.Name != "" {
|
||||
eachName(VersionFlag.Name, func(name string) {
|
||||
if VersionFlag.GetName() != "" {
|
||||
eachName(VersionFlag.GetName(), func(name string) {
|
||||
if c.GlobalBool(name) || c.Bool(name) {
|
||||
found = true
|
||||
}
|
||||
|
@ -220,8 +268,8 @@ func checkVersion(c *Context) bool {
|
|||
|
||||
func checkHelp(c *Context) bool {
|
||||
found := false
|
||||
if HelpFlag.Name != "" {
|
||||
eachName(HelpFlag.Name, func(name string) {
|
||||
if HelpFlag.GetName() != "" {
|
||||
eachName(HelpFlag.GetName(), func(name string) {
|
||||
if c.GlobalBool(name) || c.Bool(name) {
|
||||
found = true
|
||||
}
|
||||
|
@ -248,20 +296,43 @@ func checkSubcommandHelp(c *Context) bool {
|
|||
return false
|
||||
}
|
||||
|
||||
func checkCompletions(c *Context) bool {
|
||||
if (c.GlobalBool(BashCompletionFlag.Name) || c.Bool(BashCompletionFlag.Name)) && c.App.EnableBashCompletion {
|
||||
ShowCompletions(c)
|
||||
return true
|
||||
func checkShellCompleteFlag(a *App, arguments []string) (bool, []string) {
|
||||
if !a.EnableBashCompletion {
|
||||
return false, arguments
|
||||
}
|
||||
|
||||
pos := len(arguments) - 1
|
||||
lastArg := arguments[pos]
|
||||
|
||||
if lastArg != "--"+BashCompletionFlag.GetName() {
|
||||
return false, arguments
|
||||
}
|
||||
|
||||
return true, arguments[:pos]
|
||||
}
|
||||
|
||||
func checkCompletions(c *Context) bool {
|
||||
if !c.shellComplete {
|
||||
return false
|
||||
}
|
||||
|
||||
if args := c.Args(); args.Present() {
|
||||
name := args.First()
|
||||
if cmd := c.App.Command(name); cmd != nil {
|
||||
// let the command handle the completion
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
ShowCompletions(c)
|
||||
return true
|
||||
}
|
||||
|
||||
func checkCommandCompletions(c *Context, name string) bool {
|
||||
if c.Bool(BashCompletionFlag.Name) && c.App.EnableBashCompletion {
|
||||
ShowCommandCompletions(c, name)
|
||||
return true
|
||||
if !c.shellComplete {
|
||||
return false
|
||||
}
|
||||
|
||||
return false
|
||||
ShowCommandCompletions(c, name)
|
||||
return true
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue