parent
ca5710c94e
commit
52ae6a1d02
47
command.go
47
command.go
@ -700,7 +700,7 @@ func (c *Command) ExecuteC() (cmd *Command, err error) {
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// initialize help as the last point possible to allow for user
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// overriding
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c.initHelpCmd()
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c.InitDefaultHelpCmd()
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var args []string
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@ -764,31 +764,32 @@ func (c *Command) InitDefaultHelpFlag() {
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}
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}
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func (c *Command) initHelpCmd() {
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if c.helpCommand == nil {
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if !c.HasSubCommands() {
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return
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}
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// InitDefaultHelpCmd adds default help command to c.
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// It is called automatically by executing the c or by calling help and usage.
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// If c already has help command or c has no subcommands, it will do nothing.
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func (c *Command) InitDefaultHelpCmd() {
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if c.helpCommand != nil || !c.HasSubCommands() {
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return
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}
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c.helpCommand = &Command{
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Use: "help [command]",
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Short: "Help about any command",
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Long: `Help provides help for any command in the application.
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c.helpCommand = &Command{
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Use: "help [command]",
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Short: "Help about any command",
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Long: `Help provides help for any command in the application.
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Simply type ` + c.Name() + ` help [path to command] for full details.`,
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PersistentPreRun: func(cmd *Command, args []string) {},
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PersistentPostRun: func(cmd *Command, args []string) {},
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PersistentPreRun: func(cmd *Command, args []string) {},
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PersistentPostRun: func(cmd *Command, args []string) {},
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Run: func(c *Command, args []string) {
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cmd, _, e := c.Root().Find(args)
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if cmd == nil || e != nil {
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c.Printf("Unknown help topic %#q\n", args)
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c.Root().Usage()
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} else {
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cmd.InitDefaultHelpFlag() // make possible 'help' flag to be shown
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cmd.Help()
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}
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},
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}
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Run: func(c *Command, args []string) {
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cmd, _, e := c.Root().Find(args)
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if cmd == nil || e != nil {
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c.Printf("Unknown help topic %#q\n", args)
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c.Root().Usage()
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} else {
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cmd.InitDefaultHelpFlag() // make possible 'help' flag to be shown
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cmd.Help()
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}
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},
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}
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c.RemoveCommand(c.helpCommand)
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c.AddCommand(c.helpCommand)
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