func help(args []string) {
if len(args) == 0 {
usage()
return
}
if len(args) != 1 {
fmt.Fprintf(os.Stdout, "usage: hg help command\n\nToo many arguments given.\n")
os.Exit(0)
}
arg := args[0]
for _, cmd := range commands {
if cmd.Name() == arg {
utils.Tmpl(os.Stdout, template.HelpTemplate, cmd)
return
}
}
fmt.Fprintf(os.Stdout, "Unknown help topic %#q. Run 'hg help'.\n", arg)
os.Exit(0)
}
func usage() {
utils.Tmpl(os.Stdout, template.UsageTemplate, commands)
os.Exit(0)
}