2010-08-24 10:37:00 -07:00

47 lines
1.9 KiB
Ruby

require 'thor/group'
require 'thor/actions'
module Vagrant
module Command
# A CLI command is the subclass for all commands which are single
# commands, e.g. `vagrant init`, `vagrant up`. Not commands like
# `vagrant box add`. For commands which have more subcommands, use
# a {GroupBase}.
#
# A {Base} is a subclass of `Thor::Group`, so view the documentation
# there on how to add arguments, descriptions etc. The important note
# about this is that when invoked, _all public methods_ will be called
# in the order they are defined. If you don't want a method called when
# the command is invoked, it must be made `protected` or `private`.
#
# The best way to get examples of how to create your own command is to
# view the various Vagrant commands, which are relatively simple.
class Base < Thor::Group
include Thor::Actions
# Register the command with the main Vagrant CLI under the
# given name. The name will be used for accessing it from the CLI,
# so if you name it "lamp", then the command to invoke this
# will be `vagrant lamp`.
#
# The description added to the class via the `desc` method will be
# used as a description for the command.
def self.register(usage)
# Extracts the name out of the usage string. So `init [foo] [bar]`
# becomes "init"
_, name = /^([a-zA-Z0-9]+)(\s+(.+?))?$/.match(usage).to_a
CLI.register(self, name, usage, desc)
end
def initialize(args=[], options={}, config={})
super
# The last argument must _always_ be a Vagrant Environment class.
raise CLIMissingEnvironment.new("This command requires that a Vagrant environment be properly passed in as the last parameter.") if !config[:env]
@env = config[:env]
@env.ui = UI::Shell.new(shell) if !@env.ui.is_a?(UI::Shell)
end
end
end
end