Rails::Plugin has gone

16 files changed, 14 insertions, 763 deletions

diff --git a/railties/lib/rails/application.rb b/railties/lib/rails/application.rb
index 493102a58f..7103dad1f3 100644
--- a/railties/lib/rails/application.rb
+++ b/railties/lib/rails/application.rb
@@ -1,6 +1,5 @@
 require 'active_support/core_ext/hash/reverse_merge'
 require 'fileutils'
-require 'rails/plugin'
 require 'rails/engine'
 
 module Rails
@@ -9,7 +8,7 @@ module Rails
   #
   # == Initialization
   #
-  # Rails::Application is responsible for executing all railties, engines and plugin
+  # Rails::Application is responsible for executing all railties and engines
   # initializers. It also executes some bootstrap initializers (check
   # Rails::Application::Bootstrap) and finishing initializers, after all the others
   # are executed (check Rails::Application::Finisher).
@@ -19,7 +18,7 @@ module Rails
   # Besides providing the same configuration as Rails::Engine and Rails::Railtie,
   # the application object has several specific configurations, for example
   # "allow_concurrency", "cache_classes", "consider_all_requests_local", "filter_parameters",
-  # "logger", "reload_plugins" and so forth.
+  # "logger" and so forth.
   #
   # Check Rails::Application::Configuration to see them all.
   #
diff --git a/railties/lib/rails/application/configuration.rb b/railties/lib/rails/application/configuration.rb
index 79b12ad4eb..7b6cb9d8d7 100644
--- a/railties/lib/rails/application/configuration.rb
+++ b/railties/lib/rails/application/configuration.rb
@@ -10,7 +10,7 @@ module Rails
                     :cache_classes, :cache_store, :consider_all_requests_local,
                     :dependency_loading, :exceptions_app, :file_watcher, :filter_parameters,
                     :force_ssl, :helpers_paths, :logger, :log_tags, :preload_frameworks,
-                    :railties_order, :relative_url_root, :reload_plugins, :secret_token,
+                    :railties_order, :relative_url_root, :secret_token,
                     :serve_static_assets, :ssl_options, :static_cache_control, :session_options,
                     :time_zone, :reload_classes_only_on_change
 
diff --git a/railties/lib/rails/application/railties.rb b/railties/lib/rails/application/railties.rb
index 8f3a3e8bbb..f20a9689de 100644
--- a/railties/lib/rails/application/railties.rb
+++ b/railties/lib/rails/application/railties.rb
@@ -4,7 +4,7 @@ module Rails
   class Application < Engine
     class Railties < Rails::Engine::Railties
       def all(&block)
-        @all ||= railties + engines + plugins
+        @all ||= railties + engines
         @all.each(&block) if block
         @all
       end
diff --git a/railties/lib/rails/commands.rb b/railties/lib/rails/commands.rb
index ada150ceec..71fe604e69 100644
--- a/railties/lib/rails/commands.rb
+++ b/railties/lib/rails/commands.rb
@@ -91,7 +91,7 @@ In addition to those, there are:
  destroy      Undo code generated with "generate" (short-cut alias: "d")
  benchmarker  See how fast a piece of code runs
  profiler     Get profile information from a piece of code
- plugin       Install a plugin
+ plugin new   Generates skeleton for developing a Rails plugin
  runner       Run a piece of code in the application environment (short-cut alias: "r")
 
 All commands can be run with -h (or --help) for more information.
diff --git a/railties/lib/rails/commands/plugin.rb b/railties/lib/rails/commands/plugin.rb
deleted file mode 100644
index 4ddd12ae0b..0000000000
--- a/railties/lib/rails/commands/plugin.rb
+++ /dev/null
@@ -1,544 +0,0 @@
-# Rails Plugin Manager.
-#
-# Installing plugins:
-#
-#   $ rails plugin install continuous_builder asset_timestamping
-#
-# Specifying revisions:
-#
-#   * Subversion revision is a single integer.
-#
-#   * Git revision format:
-#     - full - 'refs/tags/1.8.0' or 'refs/heads/experimental'
-#     - short: 'experimental' (equivalent to 'refs/heads/experimental')
-#              'tag 1.8.0' (equivalent to 'refs/tags/1.8.0')
-#
-#
-# This is Free Software, copyright 2005 by Ryan Tomayko (rtomayko@gmail.com)
-# and is licensed MIT: (http://www.opensource.org/licenses/mit-license.php)
-
-$verbose = false
-
-require 'open-uri'
-require 'fileutils'
-require 'tempfile'
-
-include FileUtils
-
-class RailsEnvironment
-  attr_reader :root
-
-  def initialize(dir)
-    @root = dir
-  end
-
-  def self.find(dir=nil)
-    dir ||= pwd
-    while dir.length > 1
-      return new(dir) if File.exist?(File.join(dir, 'config', 'environment.rb'))
-      dir = File.dirname(dir)
-    end
-  end
-
-  def self.default
-    @default ||= find
-  end
-
-  def self.default=(rails_env)
-    @default = rails_env
-  end
-
-  def install(name_uri_or_plugin)
-    if name_uri_or_plugin.is_a? String
-      if name_uri_or_plugin =~ /:\/\//
-        plugin = Plugin.new(name_uri_or_plugin)
-      else
-        plugin = Plugins[name_uri_or_plugin]
-      end
-    else
-      plugin = name_uri_or_plugin
-    end
-    if plugin
-      plugin.install
-    else
-      puts "Plugin not found: #{name_uri_or_plugin}"
-    end
-  end
-
-  def use_svn?
-    require 'active_support/core_ext/kernel'
-    silence_stderr {`svn --version` rescue nil}
-    !$?.nil? && $?.success?
-  end
-
-  def use_externals?
-    use_svn? && File.directory?("#{root}/vendor/plugins/.svn")
-  end
-
-  def use_checkout?
-    # this is a bit of a guess. we assume that if the rails environment
-    # is under subversion then they probably want the plugin checked out
-    # instead of exported. This can be overridden on the command line
-    File.directory?("#{root}/.svn")
-  end
-
-  def best_install_method
-    return :http unless use_svn?
-    case
-      when use_externals? then :externals
-      when use_checkout? then :checkout
-      else :export
-    end
-  end
-
-  def externals
-    return [] unless use_externals?
-    ext = `svn propget svn:externals "#{root}/vendor/plugins"`
-    lines = ext.respond_to?(:lines) ? ext.lines : ext
-    lines.reject{ |line| line.strip == '' }.map do |line|
-      line.strip.split(/\s+/, 2)
-    end
-  end
-
-  def externals=(items)
-    unless items.is_a? String
-      items = items.map{|name,uri| "#{name.ljust(29)} #{uri.chomp('/')}"}.join("\n")
-    end
-    Tempfile.open("svn-set-prop") do |file|
-      file.write(items)
-      file.flush
-      system("svn propset -q svn:externals -F \"#{file.path}\" \"#{root}/vendor/plugins\"")
-    end
-  end
-end
-
-class Plugin
-  attr_reader :name, :uri
-
-  def initialize(uri, name = nil)
-    @uri = uri
-    guess_name(uri)
-  end
-
-  def self.find(name)
-    new(name)
-  end
-
-  def to_s
-    "#{@name.ljust(30)}#{@uri}"
-  end
-
-  def svn_url?
-    @uri =~ /svn(?:\+ssh)?:\/\/*/
-  end
-
-  def git_url?
-    @uri =~ /^git:\/\// || @uri =~ /\.git$/
-  end
-
-  def installed?
-    File.directory?("#{rails_env.root}/vendor/plugins/#{name}") \
-      or rails_env.externals.detect{ |name, repo| self.uri == repo }
-  end
-
-  def install(method=nil, options = {})
-    method ||= rails_env.best_install_method?
-    if :http == method
-      method = :export if svn_url?
-      method = :git    if git_url?
-    end
-
-    uninstall if installed? and options[:force]
-
-    unless installed?
-      send("install_using_#{method}", options)
-      run_install_hook
-    else
-      puts "already installed: #{name} (#{uri}).  pass --force to reinstall"
-    end
-  end
-
-  def uninstall
-    path = "#{rails_env.root}/vendor/plugins/#{name}"
-    if File.directory?(path)
-      puts "Removing 'vendor/plugins/#{name}'" if $verbose
-      run_uninstall_hook
-      rm_r path
-    else
-      puts "Plugin doesn't exist: #{path}"
-    end
-
-    if rails_env.use_externals?
-      # clean up svn:externals
-      externals = rails_env.externals
-      externals.reject!{|n, u| name == n or name == u}
-      rails_env.externals = externals
-    end
-  end
-
-  def info
-    tmp = "#{rails_env.root}/_tmp_about.yml"
-    if svn_url?
-      cmd = "svn export #{@uri} \"#{rails_env.root}/#{tmp}\""
-      puts cmd if $verbose
-      system(cmd)
-    end
-    open(svn_url? ? tmp : File.join(@uri, 'about.yml')) do |stream|
-      stream.read
-    end rescue "No about.yml found in #{uri}"
-  ensure
-    FileUtils.rm_rf tmp if svn_url?
-  end
-
-  private
-
-    def run_install_hook
-      install_hook_file = "#{rails_env.root}/vendor/plugins/#{name}/install.rb"
-      load install_hook_file if File.exist? install_hook_file
-    end
-
-    def run_uninstall_hook
-      uninstall_hook_file = "#{rails_env.root}/vendor/plugins/#{name}/uninstall.rb"
-      load uninstall_hook_file if File.exist? uninstall_hook_file
-    end
-
-    def install_using_export(options = {})
-      svn_command :export, options
-    end
-
-    def install_using_checkout(options = {})
-      svn_command :checkout, options
-    end
-
-    def install_using_externals(options = {})
-      externals = rails_env.externals
-      externals.push([@name, uri])
-      rails_env.externals = externals
-      install_using_checkout(options)
-    end
-
-    def install_using_http(options = {})
-      root = rails_env.root
-      mkdir_p "#{root}/vendor/plugins/#{@name}"
-      Dir.chdir "#{root}/vendor/plugins/#{@name}" do
-        puts "fetching from '#{uri}'" if $verbose
-        fetcher = RecursiveHTTPFetcher.new(uri, -1)
-        fetcher.quiet = true if options[:quiet]
-        fetcher.fetch
-      end
-    end
-
-    def install_using_git(options = {})
-      root = rails_env.root
-      mkdir_p(install_path = "#{root}/vendor/plugins/#{name}")
-      Dir.chdir install_path do
-        init_cmd = "git init"
-        init_cmd += " -q" if options[:quiet] and not $verbose
-        puts init_cmd if $verbose
-        system(init_cmd)
-        base_cmd = "git pull --depth 1 #{uri}"
-        base_cmd += " -q" if options[:quiet] and not $verbose
-        base_cmd += " #{options[:revision]}" if options[:revision]
-        puts base_cmd if $verbose
-        if system(base_cmd)
-          puts "removing: .git .gitignore" if $verbose
-          rm_rf %w(.git .gitignore)
-        else
-          rm_rf install_path
-        end
-      end
-    end
-
-    def svn_command(cmd, options = {})
-      root = rails_env.root
-      mkdir_p "#{root}/vendor/plugins"
-      base_cmd = "svn #{cmd} #{uri} \"#{root}/vendor/plugins/#{name}\""
-      base_cmd += ' -q' if options[:quiet] and not $verbose
-      base_cmd += " -r #{options[:revision]}" if options[:revision]
-      puts base_cmd if $verbose
-      system(base_cmd)
-    end
-
-    def guess_name(url)
-      @name = File.basename(url)
-      if @name == 'trunk' || @name.empty?
-        @name = File.basename(File.dirname(url))
-      end
-      @name.gsub!(/\.git$/, '') if @name =~ /\.git$/
-    end
-
-    def rails_env
-      @rails_env || RailsEnvironment.default
-    end
-end
-
-# load default environment and parse arguments
-require 'optparse'
-module Rails
-  module Commands
-    class Plugin
-      attr_reader :environment, :script_name
-      def initialize
-        @environment = RailsEnvironment.default
-        @rails_root = RailsEnvironment.default.root
-        @script_name = File.basename($0)
-      end
-
-      def environment=(value)
-        @environment = value
-        RailsEnvironment.default = value
-      end
-
-      def options
-        OptionParser.new do |o|
-          o.set_summary_indent('  ')
-          o.banner =    "Usage: plugin [OPTIONS] command"
-          o.define_head "Rails plugin manager."
-
-          o.separator ""
-          o.separator "GENERAL OPTIONS"
-
-          o.on("-r", "--root=DIR", String,
-               "Set an explicit rails app directory.",
-               "Default: #{@rails_root}") { |rails_root| @rails_root = rails_root; self.environment = RailsEnvironment.new(@rails_root) }
-
-          o.on("-v", "--verbose", "Turn on verbose output.") { |verbose| $verbose = verbose }
-          o.on("-h", "--help", "Show this help message.") { puts o; exit }
-
-          o.separator ""
-          o.separator "COMMANDS"
-
-          o.separator "  install    Install plugin(s) from known repositories or URLs."
-          o.separator "  remove     Uninstall plugins."
-
-          o.separator ""
-          o.separator "EXAMPLES"
-          o.separator "  Install a plugin from a subversion URL:"
-          o.separator "    #{@script_name} plugin install http://example.com/my_svn_plugin\n"
-          o.separator "  Install a plugin from a git URL:"
-          o.separator "    #{@script_name} plugin install git://github.com/SomeGuy/my_awesome_plugin.git\n"
-          o.separator "  Install a plugin and add a svn:externals entry to vendor/plugins"
-          o.separator "    #{@script_name} plugin install -x my_svn_plugin\n"
-        end
-      end
-
-      def parse!(args=ARGV)
-        general, sub = split_args(args)
-        options.parse!(general)
-
-        command = general.shift
-        if command =~ /^(install|remove)$/
-          command = Commands.const_get(command.capitalize).new(self)
-          command.parse!(sub)
-        else
-          puts "Unknown command: #{command}" unless command.blank?
-          puts options
-          exit 1
-        end
-      end
-
-      def split_args(args)
-        left = []
-        left << args.shift while args[0] and args[0] =~ /^-/
-        left << args.shift if args[0]
-        [left, args]
-      end
-
-      def self.parse!(args=ARGV)
-        Plugin.new.parse!(args)
-      end
-    end
-
-    class Install
-      def initialize(base_command)
-        @base_command = base_command
-        @method = :http
-        @options = { :quiet => false, :revision => nil, :force => false }
-      end
-
-      def options
-        OptionParser.new do |o|
-          o.set_summary_indent('  ')
-          o.banner =    "Usage: #{@base_command.script_name} install PLUGIN [PLUGIN [PLUGIN] ...]"
-          o.define_head "Install one or more plugins."
-          o.separator   ""
-          o.separator   "Options:"
-          o.on(         "-x", "--externals",
-                        "Use svn:externals to grab the plugin.",
-                        "Enables plugin updates and plugin versioning.") { |v| @method = :externals }
-          o.on(         "-o", "--checkout",
-                        "Use svn checkout to grab the plugin.",
-                        "Enables updating but does not add a svn:externals entry.") { |v| @method = :checkout }
-          o.on(         "-e", "--export",
-                        "Use svn export to grab the plugin.",
-                        "Exports the plugin, allowing you to check it into your local repository. Does not enable updates or add an svn:externals entry.") { |v| @method = :export }
-          o.on(         "-q", "--quiet",
-                        "Suppresses the output from installation.",
-                        "Ignored if -v is passed (rails plugin -v install ...)") { |v| @options[:quiet] = true }
-          o.on(         "-r REVISION", "--revision REVISION",
-                        "Checks out the given revision from subversion or git.",
-                        "Ignored if subversion/git is not used.") { |v| @options[:revision] = v }
-          o.on(         "-f", "--force",
-                        "Reinstalls a plugin if it's already installed.") { |v| @options[:force] = true }
-          o.separator   ""
-          o.separator   "You can specify plugin names as given in 'plugin list' output or absolute URLs to "
-          o.separator   "a plugin repository."
-        end
-      end
-
-      def determine_install_method
-        best = @base_command.environment.best_install_method
-        @method = :http if best == :http and @method == :export
-        case
-        when (best == :http and @method != :http)
-          msg = "Cannot install using subversion because `svn' cannot be found in your PATH"
-        when (best == :export and (@method != :export and @method != :http))
-          msg = "Cannot install using #{@method} because this project is not under subversion."
-        when (best != :externals and @method == :externals)
-          msg = "Cannot install using externals because vendor/plugins is not under subversion."
-        end
-        if msg
-          puts msg
-          exit 1
-        end
-        @method
-      end
-
-      def parse!(args)
-        options.parse!(args)
-        if args.blank?
-          puts options
-          exit 1
-        end
-        environment = @base_command.environment
-        install_method = determine_install_method
-        puts "Plugins will be installed using #{install_method}" if $verbose
-        args.each do |name|
-          ::Plugin.find(name).install(install_method, @options)
-        end
-      rescue StandardError => e
-        puts "Plugin not found: #{args.inspect}"
-        puts e.inspect if $verbose
-        exit 1
-      end
-    end
-
-    class Remove
-      def initialize(base_command)
-        @base_command = base_command
-      end
-
-      def options
-        OptionParser.new do |o|
-          o.set_summary_indent('  ')
-          o.banner =    "Usage: #{@base_command.script_name} remove name [name]..."
-          o.define_head "Remove plugins."
-        end
-      end
-
-      def parse!(args)
-        options.parse!(args)
-        if args.blank?
-          puts options
-          exit 1
-        end
-        root = @base_command.environment.root
-        args.each do |name|
-          ::Plugin.new(name).uninstall
-        end
-      end
-    end
-
-    class Info
-      def initialize(base_command)
-        @base_command = base_command
-      end
-
-      def options
-        OptionParser.new do |o|
-          o.set_summary_indent('  ')
-          o.banner =    "Usage: #{@base_command.script_name} info name [name]..."
-          o.define_head "Shows plugin info at {url}/about.yml."
-        end
-      end
-
-      def parse!(args)
-        options.parse!(args)
-        args.each do |name|
-          puts ::Plugin.find(name).info
-          puts
-        end
-      end
-    end
-  end
-end
-
-class RecursiveHTTPFetcher
-  attr_accessor :quiet
-  def initialize(urls_to_fetch, level = 1, cwd = ".")
-    @level = level
-    @cwd = cwd
-    @urls_to_fetch = urls_to_fetch.lines
-    @quiet = false
-  end
-
-  def ls
-    @urls_to_fetch.collect do |url|
-      if url =~ /^svn(\+ssh)?:\/\/.*/
-        `svn ls #{url}`.split("\n").map {|entry| "/#{entry}"} rescue nil
-      else
-        open(url) do |stream|
-          links("", stream.read)
-        end rescue nil
-      end
-    end.flatten
-  end
-
-  def push_d(dir)
-    @cwd = File.join(@cwd, dir)
-    FileUtils.mkdir_p(@cwd)
-  end
-
-  def pop_d
-    @cwd = File.dirname(@cwd)
-  end
-
-  def links(base_url, contents)
-    links = []
-    contents.scan(/href\s*=\s*\"*[^\">]*/i) do |link|
-      link = link.sub(/href="/i, "")
-      next if link =~ /svnindex.xsl$/
-      next if link =~ /^(\w*:|)\/\// || link =~ /^\./
-      links << File.join(base_url, link)
-    end
-    links
-  end
-
-  def download(link)
-    puts "+ #{File.join(@cwd, File.basename(link))}" unless @quiet
-    open(link) do |stream|
-      File.open(File.join(@cwd, File.basename(link)), "wb") do |file|
-        file.write(stream.read)
-      end
-    end
-  end
-
-  def fetch(links = @urls_to_fetch)
-    links.each do |l|
-      (l =~ /\/$/ || links == @urls_to_fetch) ? fetch_dir(l) : download(l)
-    end
-  end
-
-  def fetch_dir(url)
-    @level += 1
-    push_d(File.basename(url)) if @level > 0
-    open(url) do |stream|
-      contents =  stream.read
-      fetch(links(url, contents))
-    end
-    pop_d if @level > 0
-    @level -= 1
-  end
-end
-
-Rails::Commands::Plugin.parse!
diff --git a/railties/lib/rails/engine/configuration.rb b/railties/lib/rails/engine/configuration.rb
index d6015e9c01..d7405cb519 100644
--- a/railties/lib/rails/engine/configuration.rb
+++ b/railties/lib/rails/engine/configuration.rb
@@ -5,7 +5,6 @@ module Rails
     class Configuration < ::Rails::Railtie::Configuration
       attr_reader :root
       attr_writer :middleware, :eager_load_paths, :autoload_once_paths, :autoload_paths
-      attr_accessor :plugins
 
       def initialize(root=nil)
         super()
@@ -59,7 +58,6 @@ module Rails
           paths.add "db/seeds",            :with => "db/seeds.rb"
           paths.add "vendor",              :load_path => true
           paths.add "vendor/assets",       :glob => "*"
-          paths.add "vendor/plugins"
           paths
         end
       end
diff --git a/railties/lib/rails/engine/railties.rb b/railties/lib/rails/engine/railties.rb
index d5ecd2e48d..033d9c4180 100644
--- a/railties/lib/rails/engine/railties.rb
+++ b/railties/lib/rails/engine/railties.rb
@@ -7,18 +7,11 @@ module Rails
       end
 
       def all(&block)
-        @all ||= plugins
+        @all ||= []
         @all.each(&block) if block
         @all
       end
 
-      def plugins
-        @plugins ||= begin
-          plugin_names = (@config.plugins || [:all]).map { |p| p.to_sym }
-          Plugin.all(plugin_names, @config.paths["vendor/plugins"].existent)
-        end
-      end
-
       def self.railties
         @railties ||= ::Rails::Railtie.subclasses.map(&:instance)
       end
diff --git a/railties/lib/rails/generators.rb b/railties/lib/rails/generators.rb
index 27f8d13ce8..cd277c5097 100644
--- a/railties/lib/rails/generators.rb
+++ b/railties/lib/rails/generators.rb
@@ -38,11 +38,6 @@ module Rails
 
       :test_unit => {
         :fixture_replacement => '-r',
-      },
-
-      :plugin => {
-        :generator => '-g',
-        :tasks => '-r'
       }
     }
 
@@ -62,11 +57,6 @@ module Rails
         :stylesheet_engine => :css,
         :test_framework => false,
         :template_engine => :erb
-      },
-
-      :plugin => {
-        :generator => false,
-        :tasks => false
       }
     }
 
@@ -195,7 +185,6 @@ module Rails
           "#{test}:scaffold",
           "#{test}:view",
           "#{test}:performance",
-          "#{test}:plugin",
           "#{template}:controller",
           "#{template}:scaffold",
           "#{template}:mailer",
diff --git a/railties/lib/rails/generators/actions.rb b/railties/lib/rails/generators/actions.rb
index 781d7bf47c..ce62ea463d 100644
--- a/railties/lib/rails/generators/actions.rb
+++ b/railties/lib/rails/generators/actions.rb
@@ -6,40 +6,6 @@ module Rails
   module Generators
     module Actions
 
-      # Install a plugin. You must provide either a Subversion url or Git url.
-      #
-      # For a Git-hosted plugin, you can specify a branch and
-      # whether it should be added as a submodule instead of cloned.
-      #
-      # For a Subversion-hosted plugin you can specify a revision.
-      #
-      # ==== Examples
-      #
-      #   plugin 'restful-authentication', :git => 'git://github.com/technoweenie/restful-authentication.git'
-      #   plugin 'restful-authentication', :git => 'git://github.com/technoweenie/restful-authentication.git', :branch => 'stable'
-      #   plugin 'restful-authentication', :git => 'git://github.com/technoweenie/restful-authentication.git', :submodule => true
-      #   plugin 'restful-authentication', :svn => 'svn://svnhub.com/technoweenie/restful-authentication/trunk'
-      #   plugin 'restful-authentication', :svn => 'svn://svnhub.com/technoweenie/restful-authentication/trunk', :revision => 1234
-      #
-      def plugin(name, options)
-        log :plugin, name
-
-        if options[:git] && options[:submodule]
-          options[:git] = "-b #{options[:branch]} #{options[:git]}" if options[:branch]
-          in_root do
-            run "git submodule add #{options[:git]} vendor/plugins/#{name}", :verbose => false
-          end
-        elsif options[:git] || options[:svn]
-          options[:git] = "-b #{options[:branch]} #{options[:git]}"   if options[:branch]
-          options[:svn] = "-r #{options[:revision]} #{options[:svn]}" if options[:revision]
-          in_root do
-            run_ruby_script "script/rails plugin install #{options[:svn] || options[:git]}", :verbose => false
-          end
-        else
-          log "! no git or svn provided for #{name}. Skipping..."
-        end
-      end
-
       # Adds an entry into Gemfile for the supplied gem. If env
       # is specified, add the gem to the given environment.
       #
diff --git a/railties/lib/rails/generators/rails/app/app_generator.rb b/railties/lib/rails/generators/rails/app/app_generator.rb
index 2a6bd57df4..f0745df667 100644
--- a/railties/lib/rails/generators/rails/app/app_generator.rb
+++ b/railties/lib/rails/generators/rails/app/app_generator.rb
@@ -124,7 +124,6 @@ module Rails
     def vendor
       vendor_javascripts
       vendor_stylesheets
-      vendor_plugins
     end
 
     def vendor_javascripts
@@ -134,10 +133,6 @@ module Rails
     def vendor_stylesheets
       empty_directory_with_gitkeep "vendor/assets/stylesheets"
     end
-
-    def vendor_plugins
-      empty_directory_with_gitkeep "vendor/plugins"
-    end
   end
 
   module Generators
diff --git a/railties/lib/rails/generators/rails/app/templates/README b/railties/lib/rails/generators/rails/app/templates/README
index 904624a586..d2014bd35f 100644
--- a/railties/lib/rails/generators/rails/app/templates/README
+++ b/railties/lib/rails/generators/rails/app/templates/README
@@ -191,7 +191,6 @@ The default directory structure of a generated Ruby on Rails application:
   `-- vendor
       |-- assets
           `-- stylesheets
-      `-- plugins
 
 app
   Holds all the code that's specific to this particular application.
@@ -256,6 +255,5 @@ test
   directory.
 
 vendor
-  External libraries that the application depends on. Also includes the plugins
-  subdirectory. If the app has frozen rails, those gems also go here, under
-  vendor/rails/. This directory is in the load path.
+  External libraries that the application depends on. If the app has frozen rails,
+  those gems also go here, under vendor/rails/. This directory is in the load path.
diff --git a/railties/lib/rails/generators/rails/app/templates/config/application.rb b/railties/lib/rails/generators/rails/app/templates/config/application.rb
index c6dfa1f2dd..bcd3a2ad24 100644
--- a/railties/lib/rails/generators/rails/app/templates/config/application.rb
+++ b/railties/lib/rails/generators/rails/app/templates/config/application.rb
@@ -28,10 +28,6 @@ module <%= app_const_base %>
     # Custom directories with classes and modules you want to be autoloadable.
     # config.autoload_paths += %W(#{config.root}/extras)
 
-    # Only load the plugins named here, in the order given (default is alphabetical).
-    # :all can be used as a placeholder for all plugins not explicitly named.
-    # config.plugins = [ :exception_notification, :ssl_requirement, :all ]
-
     # Activate observers that should always be running.
     # config.active_record.observers = :cacher, :garbage_collector, :forum_observer
 
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
diff --git a/railties/lib/rails/railtie.rb b/railties/lib/rails/railtie.rb
index 07a122e7d0..7fed7c8631 100644
--- a/railties/lib/rails/railtie.rb
+++ b/railties/lib/rails/railtie.rb
@@ -103,11 +103,11 @@ module Rails
   #     end
   #   end
   #
-  # == Application, Plugin and Engine
+  # == Application and Engine
   #
   # A Rails::Engine is nothing more than a Railtie with some initializers already set.
-  # And since Rails::Application and Rails::Plugin are engines, the same configuration
-  # described here can be used in all three.
+  # And since Rails::Application is an engine, the same configuration described here
+  # can be used in both.
   #
   # Be sure to look at the documentation of those specific classes for more information.
   #
@@ -117,7 +117,7 @@ module Rails
 
     include Initializable
 
-    ABSTRACT_RAILTIES = %w(Rails::Railtie Rails::Plugin Rails::Engine Rails::Application)
+    ABSTRACT_RAILTIES = %w(Rails::Railtie Rails::Engine Rails::Application)
 
     class << self
       private :new
diff --git a/railties/lib/rails/tasks/documentation.rake b/railties/lib/rails/tasks/documentation.rake
index 1c28b2c8e6..e09379c8c2 100644
--- a/railties/lib/rails/tasks/documentation.rake
+++ b/railties/lib/rails/tasks/documentation.rake
@@ -55,7 +55,7 @@ namespace :doc do
     rdoc.rdoc_files.include('app/**/*.rb')
     rdoc.rdoc_files.include('lib/**/*.rb')
   }
-  Rake::Task['doc:app'].comment = "Generate docs for the app -- also available doc:rails, doc:guides, doc:plugins (options: TEMPLATE=/rdoc-template.rb, TITLE=\"Custom Title\")"
+  Rake::Task['doc:app'].comment = "Generate docs for the app -- also available doc:rails, doc:guides (options: TEMPLATE=/rdoc-template.rb, TITLE=\"Custom Title\")"
 
   # desc 'Generate documentation for the Rails framework.'
   RDocTaskWithoutDescriptions.new("rails") { |rdoc|
@@ -108,48 +108,10 @@ namespace :doc do
     end
   }
 
-  plugins = FileList['vendor/plugins/**'].collect { |plugin| File.basename(plugin) }
-
-  # desc "Generate documentation for all installed plugins"
-  task :plugins => plugins.collect { |plugin| "doc:plugins:#{plugin}" }
-
-  # desc "Remove plugin documentation"
-  task :clobber_plugins do
-    rm_rf 'doc/plugins' rescue nil
-  end
-
   # desc "Generate Rails Guides"
   task :guides do
     # FIXME: Reaching outside lib directory is a bad idea
     require File.expand_path('../../../../guides/rails_guides', __FILE__)
     RailsGuides::Generator.new(Rails.root.join("doc/guides")).generate
   end
-
-  namespace :plugins do
-    # Define doc tasks for each plugin
-    plugins.each do |plugin|
-      # desc "Generate documentation for the #{plugin} plugin"
-      task(plugin => :environment) do
-        plugin_base   = "vendor/plugins/#{plugin}"
-        options       = []
-        files         = Rake::FileList.new
-        options << "-o doc/plugins/#{plugin}"
-        options << "--title '#{plugin.titlecase} Plugin Documentation'"
-        options << '--line-numbers'
-        options << '--charset' << 'utf-8'
-        options << '-T html'
-
-        files.include("#{plugin_base}/lib/**/*.rb")
-        if File.exist?("#{plugin_base}/README")
-          files.include("#{plugin_base}/README")
-          options << "--main '#{plugin_base}/README'"
-        end
-        files.include("#{plugin_base}/CHANGELOG") if File.exist?("#{plugin_base}/CHANGELOG")
-
-        options << files.to_s
-
-        sh %(rdoc #{options * ' '})
-      end
-    end
-  end
 end
diff --git a/railties/lib/rails/test_unit/testing.rake b/railties/lib/rails/test_unit/testing.rake
index a23d22d607..2c0b167a99 100644
--- a/railties/lib/rails/test_unit/testing.rake
+++ b/railties/lib/rails/test_unit/testing.rake
@@ -45,7 +45,7 @@ end
 
 task :default => :test
 
-desc 'Runs test:units, test:functionals, test:integration together (also available: test:benchmark, test:profile, test:plugins)'
+desc 'Runs test:units, test:functionals, test:integration together (also available: test:benchmark, test:profile)'
 task :test do
   Rake::Task[ENV['TEST'] ? 'test:single' : 'test:run'].invoke
 end
@@ -119,14 +119,4 @@ namespace :test do
     t.libs << 'test'
     t.pattern = 'test/performance/**/*_test.rb'
   end
-
-  Rails::SubTestTask.new(:plugins => :environment) do |t|
-    t.libs << "test"
-
-    if ENV['PLUGIN']
-      t.pattern = "vendor/plugins/#{ENV['PLUGIN']}/test/**/*_test.rb"
-    else
-      t.pattern = 'vendor/plugins/*/**/test/**/*_test.rb'
-    end
-  end
 end