require "cgi" module Rails module Info mattr_accessor :properties class << (@@properties = []) def names map {|val| val.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 action_mailer active_support ) end def framework_version(framework) if Object.const_defined?(framework.classify) require "#{framework}/version" framework.classify.constantize.version.to_s end end def to_s column_width = properties.names.map {|name| name.length}.max info = properties.map do |name, value| value = value.join(", ") if value.is_a?(Array) "%-#{column_width}s %s" % [name, value] end info.unshift "About your application's environment" info * "\n" end alias inspect to_s def to_html ''.tap do |table| 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 end # The Ruby version and platform, e.g. "2.0.0-p247 (x86_64-darwin12.4.0)". property 'Ruby version' do "#{RUBY_VERSION}-p#{RUBY_PATCHLEVEL} (#{RUBY_PLATFORM})" end # 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.to_s end property 'JavaScript Runtime' do ExecJS.runtime.name end # Versions of each Rails framework (Active Record, Action Pack, # Action Mailer, and Active Support). frameworks.each do |framework| property "#{framework.titlecase} version" do framework_version(framework) end end property 'Middleware' do Rails.configuration.middleware.map(&:inspect) 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