Move railties/lib/* into railties/lib/*

1 files changed, 542 insertions, 0 deletions

diff --git a/railties/lib/rails/commands/plugin.rb b/railties/lib/rails/commands/plugin.rb
new file mode 100644
index 0000000000..159db707e7
--- /dev/null
+++ b/railties/lib/rails/commands/plugin.rb
@@ -0,0 +1,542 @@
+# Rails Plugin Manager.
+#
+# Installing plugins:
+#
+#   $ ./script/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)
+
+$verbose = false
+
+
+require 'open-uri'
+require 'fileutils'
+require 'tempfile'
+
+include FileUtils
+
+class RailsEnvironment
+  attr_reader :root
+
+  def initialize(dir)
+    @root = dir
+  end
+
+  def self.find(dir=nil)
+    dir ||= pwd
+    while dir.length > 1
+      return new(dir) if File.exist?(File.join(dir, 'config', 'environment.rb'))
+      dir = File.dirname(dir)
+    end
+  end
+  
+  def self.default
+    @default ||= find
+  end
+  
+  def self.default=(rails_env)
+    @default = rails_env
+  end
+  
+  def install(name_uri_or_plugin)
+    if name_uri_or_plugin.is_a? String
+      if name_uri_or_plugin =~ /:\/\// 
+        plugin = Plugin.new(name_uri_or_plugin)
+      else
+        plugin = Plugins[name_uri_or_plugin]
+      end
+    else
+      plugin = name_uri_or_plugin
+    end
+    unless plugin.nil?
+      plugin.install
+    else
+      puts "Plugin not found: #{name_uri_or_plugin}"
+    end
+  end
+ 
+  def use_svn?
+    require 'active_support/core_ext/kernel'
+    silence_stderr {`svn --version` rescue nil}
+    !$?.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 Commands
+
+  class Plugin
+    attr_reader :environment, :script_name, :sources
+    def initialize
+      @environment = RailsEnvironment.default
+      @rails_root = RailsEnvironment.default.root
+      @script_name = File.basename($0) 
+      @sources = []
+    end
+    
+    def environment=(value)
+      @environment = value
+      RailsEnvironment.default = value
+    end
+    
+    def options
+      OptionParser.new do |o|
+        o.set_summary_indent('  ')
+        o.banner =    "Usage: #{@script_name} [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("-s", "--source=URL1,URL2", Array,
+             "Use the specified plugin repositories instead of the defaults.") { |sources| @sources = sources}
+        
+        o.on("-v", "--verbose", "Turn on verbose output.") { |verbose| $verbose = verbose }
+        o.on("-h", "--help", "Show this help message.") { puts o; exit }
+        
+        o.separator ""
+        o.separator "COMMANDS"
+        
+        o.separator "  install    Install plugin(s) from known repositories or URLs."
+        o.separator "  remove     Uninstall plugins."
+        
+        o.separator ""
+        o.separator "EXAMPLES"
+        o.separator "  Install a plugin:"
+        o.separator "    #{@script_name} install continuous_builder\n"
+        o.separator "  Install a plugin from a subversion URL:"
+        o.separator "    #{@script_name} install http://dev.rubyonrails.com/svn/rails/plugins/continuous_builder\n"
+        o.separator "  Install a plugin from a git URL:"
+        o.separator "    #{@script_name} install git://github.com/SomeGuy/my_awesome_plugin.git\n"
+        o.separator "  Install a plugin and add a svn:externals entry to vendor/plugins"
+        o.separator "    #{@script_name} install -x continuous_builder\n"
+      end
+    end
+    
+    def parse!(args=ARGV)
+      general, sub = split_args(args)
+      options.parse!(general)
+      
+      command = general.shift
+      if command =~ /^(install|remove)$/
+        command = Commands.const_get(command.capitalize).new(self)
+        command.parse!(sub)
+      else
+        puts "Unknown command: #{command}"
+        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]
+      return [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 (./script/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)
+      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 $verbose
+      exit 1
+    end
+  end
+
+  class Remove
+    def initialize(base_command)
+      @base_command = base_command
+    end
+    
+    def options
+      OptionParser.new do |o|
+        o.set_summary_indent('  ')
+        o.banner =    "Usage: #{@base_command.script_name} remove name [name]..."
+        o.define_head "Remove plugins."
+      end
+    end
+    
+    def parse!(args)
+      options.parse!(args)
+      root = @base_command.environment.root
+      args.each do |name|
+        ::Plugin.new(name).uninstall
+      end
+    end
+  end
+
+  class Info
+    def initialize(base_command)
+      @base_command = base_command
+    end
+
+    def options
+      OptionParser.new do |o|
+        o.set_summary_indent('  ')
+        o.banner =    "Usage: #{@base_command.script_name} info name [name]..."
+        o.define_head "Shows plugin info at {url}/about.yml."
+      end
+    end
+
+    def parse!(args)
+      options.parse!(args)
+      args.each do |name|
+        puts ::Plugin.find(name).info
+        puts
+      end
+    end
+  end
+end
+ 
+class RecursiveHTTPFetcher
+  attr_accessor :quiet
+  def initialize(urls_to_fetch, level = 1, cwd = ".")
+    @level = level
+    @cwd = cwd
+    @urls_to_fetch = RUBY_VERSION >= '1.9' ? urls_to_fetch.lines : urls_to_fetch.to_a
+    @quiet = false
+  end
+
+  def ls
+    @urls_to_fetch.collect do |url|
+      if url =~ /^svn(\+ssh)?:\/\/.*/
+        `svn ls #{url}`.split("\n").map {|entry| "/#{entry}"} rescue nil
+      else
+        open(url) do |stream|
+          links("", stream.read)
+        end rescue nil
+      end
+    end.flatten
+  end
+
+  def push_d(dir)
+    @cwd = File.join(@cwd, dir)
+    FileUtils.mkdir_p(@cwd)
+  end
+
+  def pop_d
+    @cwd = File.dirname(@cwd)
+  end
+
+  def links(base_url, contents)
+    links = []
+    contents.scan(/href\s*=\s*\"*[^\">]*/i) do |link|
+      link = link.sub(/href="/i, "")
+      next if link =~ /svnindex.xsl$/
+      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
+
+Commands::Plugin.parse!