test/extensions_test.rb @@ -1,5 +1,5 @@ module Capistrano - class ExtensionProxy + class ExtensionProxy #:nodoc: def initialize(config, mod) @config = config extend(mod) @@ -10,11 +10,25 @@ module Capistrano end end + # Holds the set of registered plugins, keyed by name (where the name is a + # symbol). EXTENSIONS = {} + # Register the given module as a plugin with the given name. It will henceforth + # be available via a proxy object on Configuration instances, accessible by + # a method with the given name. def self.plugin(name, mod) + name = name.to_sym return false if EXTENSIONS.has_key?(name) + methods = Capistrano::Configuration.public_instance_methods + + Capistrano::Configuration.protected_instance_methods + + Capistrano::Configuration.private_instance_methods + + if methods.include?(name.to_s) + raise Capistrano::Error, "registering a plugin named `#{name}' would shadow a method on Capistrano::Configuration with the same name" + end + Capistrano::Configuration.class_eval <<-STR, __FILE__, __LINE__+1 def #{name} @__#{name}_proxy ||= Capistrano::ExtensionProxy.new(self, Capistrano::EXTENSIONS[#{name.inspect}]) @@ -25,7 +39,9 @@ module Capistrano return true end + # Unregister the plugin with the given name. def self.remove_plugin(name) + name = name.to_sym if EXTENSIONS.delete(name) Capistrano::Configuration.send(:remove_method, name) return true @@ -34,7 +50,7 @@ module Capistrano return false end - def self.configuration(*args) + def self.configuration(*args) #:nodoc: warn "[DEPRECATION] Capistrano.configuration is deprecated. Use Capistrano::Configuration.instance instead" Capistrano::Configuration.instance(*args) end lib/capistrano/extensions.rb 55e194c3f058615680602fa14df25710806c120c Jamis Buck jamis@37signals.com http://github.com/jamis/capistrano/commit/4c58afbe6ef7848c31a0c8b108de795be72dacf3 4c58afbe6ef7848c31a0c8b108de795be72dacf3 2007-03-16T15:11:45-07:00 2007-03-16T15:11:45-07:00 unit tests for extensions mechanism, and a bit more robustness git-svn-id: http://svn.rubyonrails.org/rails/tools/capistrano@6438 5ecf4fe2-1ee6-0310-87b1-e25e094e27de f3dea0b507339df3ed4df96412ae3e2b2ab89d06 Jamis Buck jamis@37signals.com