require "rubygems" module Vagrant # Represents a single plugin and also manages loading plugins from # RubyGems. If a plugin has a `vagrant_init.rb` file somewhere on its # load path, then this class will find it and load it. For logging purposes # (for debugging), the list of loaded plugins is stored in the {plugins} # array. class Plugin # The array of loaded plugins. @@plugins = [] # The gemspec of this plugin. This is an actual gemspec object. attr_reader :gemspec # The path to the `vagrant_init.rb` file which was loaded for this plugin. attr_reader :file # Loads all the plugins for Vagrant. Plugins are currently # gems which have a "vagrant_init.rb" somewhere on their # load path. This file is loaded to kick off the load sequence # for that plugin. def self.load! # Our version is used for checking dependencies our_version = Gem::Version.create(Vagrant::VERSION) # RubyGems 1.8.0 deprecated `source_index`. Gem::Specification is the # new replacement. For now, we support both, but special-case 1.8.x # so that we avoid deprecation messages. index = Gem::VERSION >= "1.8.0" ? Gem::Specification : Gem.source_index # Stupid hack since Rails 2.3.x overrides Gem.source_index with their # own incomplete replacement which causes issues. index = [index.installed_source_index, index.vendor_source_index] if defined?(Rails::VendorGemSourceIndex) && index.is_a?(Rails::VendorGemSourceIndex) # Look for a vagrant_init.rb in all the gems, but only the # latest version of the gems. [index].flatten.each do |source| # In 1.6.0, added the option of including prerelease gems, which is # useful for developers. specs = Gem::VERSION >= "1.6.0" ? source.latest_specs(true) : source.latest_specs specs.each do |spec| # If this gem depends on Vagrant, verify this is a valid release of # Vagrant for this gem to load into. vagrant_dep = spec.dependencies.find { |d| d.name == "vagrant" } next if vagrant_dep && !vagrant_dep.requirement.satisfied_by?(our_version) # Find a vagrant_init.rb to verify if this is a plugin file = nil if Gem::VERSION >= "1.8.0" file = spec.matches_for_glob("**/vagrant_init.rb").first else file = Gem.searcher.matching_files(spec, "vagrant_init.rb").first end next if !file @@plugins << new(spec, file) end end end # Returns the array of plugins which are currently loaded by # Vagrant. # # @return [Array] def self.plugins; @@plugins; end # Initializes a new plugin, given a Gemspec and the path to the # gem's `vagrant_init.rb` file. This should never be called manually. # Instead {load!} creates all the instances. def initialize(spec, file) @gemspec = spec @file = file load file end end end