util

Documentation

Overview

This is the Command struct used by the noms utility. It is packaged in a separate util can be used by other programs as well.

This is the Help facility used by the noms utility. It is packaged in a separate util can be used by other programs as well.

Index

• func Help(args []string)
• func InitHelp(name string, cmds []*Command, usage string)
• func Usage()
• type Command
  • func (nc *Command) Name() string
  • func (nc *Command) Usage()

Functions

func Help

func Help(args []string)

help implements the 'help' command.

func InitHelp

func InitHelp(name string, cmds []*Command, usage string)

func Usage

func Usage()

Types

type Command

type Command struct {
	// Run runs the command.
	// The args are the arguments after the command name.
	Run func(args []string) int

	// UsageLine is the one-line usage message.
	// The first word in the line is taken to be the command name.
	UsageLine string

	// Short is the short description shown in the 'help' output.
	Short string

	// Long is the long message shown in the 'help <this-command>' output.
	Long string

	// Flag is a set of flags specific to this command.
	Flags func() *flag.FlagSet

	// Nargs is the minimum number of arguments expected after flags, specific to this command.
	Nargs int
}

func (*Command) Name

func (nc *Command) Name() string

Name returns the command's name: the first word in the usage line.

func (*Command) Usage

func (nc *Command) Usage()