GLI is the best way to make a “command-suite” command-line application, e.g. one like git
(for the best way to make a simpler command-line application, check out methadone).
GLI allows you to make a polished, easy-to-maintain command-line application without a lot of syntax, but without restricting you in any way from the power of OptionParser
.
<img src=“https://secure.travis-ci.org/davetron5000/gli.png?branch=gli-2” alt=“Build Status” />
Install if you need to:
gem install gli
The simplest way to get started is to create a scaffold project
gli init todo list add complete
This will create a basic scaffold project in ./todo
with:
-
executable in
./todo/bin/todo
. This file demonstrates most of what you need to describe your command line interface. -
an empty test in
./todo/test/default_test.rb
that can bootstrap your tests -
an empty feature in
./todo/features/todo.feature
that can bootstrap testing your CLI via Aruba. -
a gemspec shell
-
a README shell
-
Rakefile that can generate RDoc, package your Gem and run tests
-
A
Gemfile
suitable for use with Bundler to manage development-time dependencies
Now, you are ready to go:
> cd todo > bundle exec bin/todo help NAME todo - Describe your application here SYNOPSIS todo [global options] command [command options] [arguments...] VERSION 0.0.1 GLOBAL OPTIONS -f, --flagname=The name of the argument - Describe some flag here (default: the default) --help - Show this message -s, --[no-]switch - Describe some switch here COMMANDS add - Describe add here complete - Describe complete here help - Shows a list of commands or help for one command list - Describe list here > bundle exec bin/todo help list NAME list - Describe list here SYNOPSIS todo [global options] list [command options] Describe arguments to list here COMMAND OPTIONS -f arg - Describe a flag to list (default: default) -s - Describe a switch to list
All you need to do is fill in the documentation and your code; the help system, command-line parsing and many other awesome features are all handled for you.
Get a more detailed walkthrough on the main site
Known to work on
-
1.8.7
-
1.9.2
-
1.9.3
-
2.0.0
-
2.1.0
-
Ruby Enterprise Edition 1.8.7
-
Rubinius 1.0.1
-
JRuby 1.6.4
If you’re interested in other versions of Ruby, let me know, and I’ll add them to my test suite
Extensive documentation is available at the wiki.
API Documentation is available here. Recommend starting with GLI::DSL or GLI::App.
- Author
-
Dave Copeland (davetron5000 at g mail dot com)
- Copyright
-
Copyright © 2010 by Dave Copeland
- License
-
Distributes under the Apache License, see LICENSE.txt in the source distro
- davetron5000.github.com/gli
-
RubyDoc
-
- www.github.com/davetron5000/gli
-
Source on GitHub
-
- www.github.com/davetron5000/gli/wiki
-
Documentation Wiki
-
:include:gli.rdoc