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Make initHelpCmd public

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Useful for solving #424
This commit is contained in:
Albert Nigmatzianov 2017-05-08 08:27:34 +02:00
parent d83a1d7ccd
commit 5960650669
1 changed files with 24 additions and 23 deletions
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47
command.go
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@ -675,7 +675,7 @@ func (c *Command) ExecuteC() (cmd *Command, err error) {
// initialize help as the last point possible to allow for user
// overriding
c.initHelpCmd()
c.InitDefaultHelpCmd()
var args []string
@ -739,31 +739,32 @@ func (c *Command) InitDefaultHelpFlag() {
}
}
func (c *Command) initHelpCmd() {
if c.helpCommand == nil {
if !c.HasSubCommands() {
return
}
// InitDefaultHelpCmd adds default help command to c.
// It is called automatically by executing the c or by calling help and usage.
// If c already has help command or c has no subcommands, it will do nothing.
func (c *Command) InitDefaultHelpCmd() {
if c.helpCommand != nil || !c.HasSubCommands() {
return
}
c.helpCommand = &Command{
Use: "help [command]",
Short: "Help about any command",
Long: `Help provides help for any command in the application.
c.helpCommand = &Command{
Use: "help [command]",
Short: "Help about any command",
Long: `Help provides help for any command in the application.
Simply type ` + c.Name() + ` help [path to command] for full details.`,
PersistentPreRun: func(cmd *Command, args []string) {},
PersistentPostRun: func(cmd *Command, args []string) {},
PersistentPreRun: func(cmd *Command, args []string) {},
PersistentPostRun: func(cmd *Command, args []string) {},
Run: func(c *Command, args []string) {
cmd, _, e := c.Root().Find(args)
if cmd == nil || e != nil {
c.Printf("Unknown help topic %#q\n", args)
c.Root().Usage()
} else {
cmd.InitDefaultHelpFlag() // make possible 'help' flag to be shown
cmd.Help()
}
},
}
Run: func(c *Command, args []string) {
cmd, _, e := c.Root().Find(args)
if cmd == nil || e != nil {
c.Printf("Unknown help topic %#q\n", args)
c.Root().Usage()
} else {
cmd.InitDefaultHelpFlag() // make possible 'help' flag to be shown
cmd.Help()
}
},
}
c.RemoveCommand(c.helpCommand)
c.AddCommand(c.helpCommand)