diff options
Diffstat (limited to 'railties/lib/rails/plugin.rb')
-rw-r--r-- | railties/lib/rails/plugin.rb | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/railties/lib/rails/plugin.rb b/railties/lib/rails/plugin.rb deleted file mode 100644 index 3e27688bb9..0000000000 --- a/railties/lib/rails/plugin.rb +++ /dev/null @@ -1,91 +0,0 @@ -require 'rails/engine' -require 'active_support/core_ext/array/conversions' - -module Rails - # Rails::Plugin is nothing more than a Rails::Engine, but since it's loaded too late - # in the boot process, it does not have the same configuration powers as a bare - # Rails::Engine. - # - # Opposite to Rails::Railtie and Rails::Engine, you are not supposed to inherit from - # Rails::Plugin. Rails::Plugin is automatically configured to be an engine by simply - # placing inside vendor/plugins. Since this is done automatically, you actually cannot - # declare a Rails::Engine inside your Plugin, otherwise it would cause the same files - # to be loaded twice. This means that if you want to ship an Engine as gem it cannot - # be used as plugin and vice-versa. - # - # Besides this conceptual difference, the only difference between Rails::Engine and - # Rails::Plugin is that plugins automatically load the file "init.rb" at the plugin - # root during the boot process. - # - class Plugin < Engine - def self.global_plugins - @global_plugins ||= [] - end - - def self.inherited(base) - raise "You cannot inherit from Rails::Plugin" - end - - def self.all(list, paths) - plugins = [] - paths.each do |path| - Dir["#{path}/*"].each do |plugin_path| - plugin = new(plugin_path) - next unless list.include?(plugin.name) || list.include?(:all) - if global_plugins.include?(plugin.name) - warn "WARNING: plugin #{plugin.name} from #{path} was not loaded. Plugin with the same name has been already loaded." - next - end - global_plugins << plugin.name - plugins << plugin - end - end - - plugins.sort_by do |p| - [list.index(p.name) || list.index(:all), p.name.to_s] - end - end - - attr_reader :name, :path - - def railtie_name - name.to_s - end - - def initialize(root) - @name = File.basename(root).to_sym - config.root = root - end - - def config - @config ||= Engine::Configuration.new - end - - initializer :handle_lib_autoload, :before => :set_load_path do |app| - autoload = if app.config.reload_plugins - config.autoload_paths - else - config.autoload_once_paths - end - - autoload.concat paths["lib"].existent - end - - initializer :load_init_rb, :before => :load_config_initializers do |app| - init_rb = File.expand_path("init.rb", root) - if File.file?(init_rb) - # This double assignment is to prevent an "unused variable" warning on Ruby 1.9.3. - config = config = app.config - # TODO: think about evaling initrb in context of Engine (currently it's - # always evaled in context of Rails::Application) - eval(File.read(init_rb), binding, init_rb) - end - end - - initializer :sanity_check_railties_collision do - if Engine.subclasses.map { |k| k.root.to_s }.include?(root.to_s) - raise "\"#{name}\" is a Railtie/Engine and cannot be installed as a plugin" - end - end - end -end |