module Rails module Info mattr_accessor :properties class << (@@properties = []) def names map &:first end def value_for(property_name) if property = assoc(property_name) property.last end end end class << self #:nodoc: def property(name, value = nil) value ||= yield properties << [name, value] if value rescue Exception end def frameworks %w( active_record action_pack active_resource action_mailer active_support ) end def framework_version(framework) require "#{framework}/version" "#{framework.classify}::VERSION::STRING".constantize end def edge_rails_revision(info = git_info) info[/commit ([a-z0-9-]+)/, 1] || freeze_edge_version end def freeze_edge_version if File.exist?(rails_vendor_root) begin Dir[File.join(rails_vendor_root, 'REVISION_*')].first.scan(/_(\d+)$/).first.first rescue Dir[File.join(rails_vendor_root, 'TAG_*')].first.scan(/_(.+)$/).first.first rescue 'unknown' end end end def to_s column_width = properties.names.map {|name| name.length}.max ["About your application's environment", *properties.map do |property| "%-#{column_width}s %s" % property end] * "\n" end alias inspect to_s def to_html returning table = '' do properties.each do |(name, value)| table << %() formatted_value = if value.kind_of?(Array) "" else CGI.escapeHTML(value.to_s) end table << %() end table << '
#{CGI.escapeHTML(name.to_s)}#{formatted_value}
' end end protected def rails_vendor_root @rails_vendor_root ||= "#{RAILS_ROOT}/vendor/rails" end def git_info env_lang, ENV['LC_ALL'] = ENV['LC_ALL'], 'C' Dir.chdir(rails_vendor_root) do silence_stderr { `git log -n 1` } end ensure ENV['LC_ALL'] = env_lang end end # The Ruby version and platform, e.g. "1.8.2 (powerpc-darwin8.2.0)". property 'Ruby version', "#{RUBY_VERSION} (#{RUBY_PLATFORM})" # The RubyGems version, if it's installed. property 'RubyGems version' do Gem::RubyGemsVersion end property 'Rack version' do ::Rack.release end # The Rails version. property 'Rails version' do Rails::VERSION::STRING end # Versions of each Rails framework (Active Record, Action Pack, # Active Resource, Action Mailer, and Active Support). frameworks.each do |framework| property "#{framework.titlecase} version" do framework_version(framework) end end property 'Middleware' do ActionController::Dispatcher.middleware.active.map(&:inspect) end # The Rails Git revision, if it's checked out into vendor/rails. property 'Edge Rails revision' do edge_rails_revision end # The application's location on the filesystem. property 'Application root' do File.expand_path(RAILS_ROOT) end # The current Rails environment (development, test, or production). property 'Environment' do RAILS_ENV end # The name of the database adapter for the current environment. property 'Database adapter' do ActiveRecord::Base.configurations[RAILS_ENV]['adapter'] end property 'Database schema version' do ActiveRecord::Migrator.current_version rescue nil end end end