CommanderRuby 命令行框架
Commander 是 Ruby 命令行执行补全解决方案。
安装：
$ gem install commander
代码示例：
require 'rubygems'
require 'commander/import'
# :name is optional, otherwise uses the basename of this executable
program :name, 'Foo Bar'
program :version, '1.0.0'
program :description, 'Stupid command that prints foo or bar.'
command :foo do |c|
c.syntax = 'foobar foo'
c.description = 'Displays foo'
c.action do |args, options|
say 'foo'
end
end
command :bar do |c|
c.syntax = 'foobar bar [options]'
c.description = 'Display bar with optional prefix and suffix'
c.option '--prefix STRING', String, 'Adds a prefix to bar'
c.option '--suffix STRING', String, 'Adds a suffix to bar'
c.action do |args, options|
options.default :prefix => '(', :suffix => ')'
say "#{options.prefix}bar#{options.suffix}"
end
end
示例输出：
$ foobar bar
# => (bar)
$ foobar bar --suffix '}' --prefix '{'
# => {bar}评论