* lib/rubygems*: Updated to RubyGems 2.0

* test/rubygems*:  ditto.

* common.mk (prelude):  Updated for RubyGems 2.0 source rearrangement.

* tool/change_maker.rb:  Allow invalid UTF-8 characters in source
  files.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37976 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rubygems/commands/yank_command.rb

@@ -0,0 +1,98 @@
+require 'rubygems/command'
+require 'rubygems/local_remote_options'
+require 'rubygems/version_option'
+require 'rubygems/gemcutter_utilities'
+
+class Gem::Commands::YankCommand < Gem::Command
+  include Gem::LocalRemoteOptions
+  include Gem::VersionOption
+  include Gem::GemcutterUtilities
+
+  def description # :nodoc:
+    'Remove a specific gem version release from RubyGems.org'
+  end
+
+  def arguments # :nodoc:
+    "GEM       name of gem"
+  end
+
+  def usage # :nodoc:
+    "#{program_name} GEM -v VERSION [-p PLATFORM] [--undo] [--key KEY_NAME]"
+  end
+
+  def initialize
+    super 'yank', description
+
+    add_version_option("remove")
+    add_platform_option("remove")
+
+    add_option('--undo') do |value, options|
+      options[:undo] = true
+    end
+    
+    add_option('-k', '--key KEY_NAME',
+               'Use API key from your gem credentials file') do |value, options|
+      options[:key] = value
+    end
+  end
+
+  def execute
+    sign_in
+
+    version   = get_version_from_requirements(options[:version])
+    platform  = get_platform_from_requirements(options)
+    api_key   = Gem.configuration.rubygems_api_key
+    api_key   = Gem.configuration.api_keys[options[:key].to_sym] if options[:key]
+
+    if version then
+      if options[:undo] then
+        unyank_gem(version, platform, api_key)
+      else
+        yank_gem(version, platform, api_key)
+      end
+    else
+      say "A version argument is required: #{usage}"
+      terminate_interaction
+    end
+  end
+
+  def yank_gem(version, platform, api_key)
+    say "Yanking gem from #{self.host}..."
+    yank_api_request(:delete, version, platform, "api/v1/gems/yank", api_key)
+  end
+
+  def unyank_gem(version, platform, api_key)
+    say "Unyanking gem from #{host}..."
+    yank_api_request(:put, version, platform, "api/v1/gems/unyank", api_key)
+  end
+
+  private
+
+  def yank_api_request(method, version, platform, api, api_key)
+    name = get_one_gem_name
+    response = rubygems_api_request(method, api) do |request|
+      request.add_field("Authorization", api_key)
+
+      data = {
+        'gem_name' => name,
+        'version' => version,
+      }
+      data['platform'] = platform if platform
+
+      request.set_form_data data
+    end
+    say response.body
+  end
+
+  def get_version_from_requirements(requirements)
+    requirements.requirements.first[1].version
+  rescue
+    nil
+  end
+
+  def get_platform_from_requirements(requirements)
+    Gem.platforms[1].to_s if requirements.key? :added_platform
+  end
+
+end
+