commander is a spin off of golang go tool infrastructure to provide commands and sub-commands.
A commander.Command has a Subcommands field holding []*commander.Command subcommands, referenced by name from the command line.
So a Command can have sub commands.
So you can have, e.g.:
$ mycmd action1 [options...]
$ mycmd subcmd1 action1 [options...]Example provided by:
Is available on godoc
Is performed with the usual:
$ go get github.com/gonuts/commanderSee the simple my-cmd example command for how this all hangs
together there:
$ my-cmd cmd1
my-cmd-cmd1: hello from cmd1 (quiet=true)
$ my-cmd cmd1 -q
my-cmd-cmd1: hello from cmd1 (quiet=true)
$ my-cmd cmd1 -q=0
my-cmd-cmd1: hello from cmd1 (quiet=false)
$ my-cmd cmd2
my-cmd-cmd2: hello from cmd2 (quiet=true)
$ my-cmd subcmd1 cmd1
my-cmd-subcmd1-cmd1: hello from subcmd1-cmd1 (quiet=true)
$ my-cmd subcmd1 cmd2
my-cmd-subcmd1-cmd2: hello from subcmd1-cmd2 (quiet=true)
$ my-cmd subcmd2 cmd1
my-cmd-subcmd2-cmd1: hello from subcmd2-cmd1 (quiet=true)
$ my-cmd subcmd2 cmd2
my-cmd-subcmd2-cmd2: hello from subcmd2-cmd2 (quiet=true)
$ my-cmd help
Usage:
my-cmd command [arguments]
The commands are:
cmd1 runs cmd1 and exits
cmd2 runs cmd2 and exits
subcmd1 subcmd1 subcommand. does subcmd1 thingies
subcmd2 subcmd2 subcommand. does subcmd2 thingies
Use "my-cmd help [command]" for more information about a command.
Additional help topics:
Use "my-cmd help [topic]" for more information about that topic.
$ my-cmd help subcmd1
Usage:
subcmd1 command [arguments]
The commands are:
cmd1 runs cmd1 and exits
cmd2 runs cmd2 and exits
Use "subcmd1 help [command]" for more information about a command.
Additional help topics:
Use "subcmd1 help [topic]" for more information about that topic.
- automatically generate the bash/zsh/csh autocompletion lists
- automatically generate Readme examples text
- test cases