vagrant/plugins/commands/plugin/action/list_plugins.rb

44 lines
1.3 KiB
Ruby

require "rubygems"
require "set"
module VagrantPlugins
module CommandPlugin
module Action
# This middleware lists all the installed plugins.
#
# This is a bit more complicated than simply listing installed
# gems or what is in the state file as installed. Instead, this
# actually compares installed gems with what the state file claims
# is installed, and outputs the appropriate truly installed
# plugins.
class ListPlugins
def initialize(app, env)
@app = app
end
def call(env)
# Get the list of installed plugins according to the state file
installed = Set.new(env[:plugin_state_file].installed_plugins)
# Get the actual specifications of installed gems
specs = env[:gem_helper].with_environment do
Gem::Specification.find_all
end
# Go through each spec and if it is an installed plugin, then
# output it. This means that both the installed state and
# gem match up.
specs.each do |spec|
if installed.include?(spec.name)
# TODO: Formatting
env[:ui].info spec.name
end
end
@app.call(env)
end
end
end
end
end