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author | wycats <wycats@gmail.com> | 2010-03-26 15:10:24 -0700 |
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committer | wycats <wycats@gmail.com> | 2010-03-26 15:10:24 -0700 |
commit | 197904341f2b2f21d69c653cede3aec124e86720 (patch) | |
tree | 83f1234e238016126860a929594db22e1862d783 /railties/lib/rails/info.rb | |
parent | 76d2c455c0607b4cd5f238cadef8f933a18567fb (diff) | |
parent | b3a0aed028835ce4551c4a76742744a40a71b0be (diff) | |
download | rails-197904341f2b2f21d69c653cede3aec124e86720.tar.gz rails-197904341f2b2f21d69c653cede3aec124e86720.tar.bz2 rails-197904341f2b2f21d69c653cede3aec124e86720.zip |
Merge branch 'master' into docrails
Diffstat (limited to 'railties/lib/rails/info.rb')
-rw-r--r-- | railties/lib/rails/info.rb | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/railties/lib/rails/info.rb b/railties/lib/rails/info.rb new file mode 100644 index 0000000000..5a496f6536 --- /dev/null +++ b/railties/lib/rails/info.rb @@ -0,0 +1,147 @@ +require "active_support/core_ext/object/misc" +require "cgi" +require "active_support/core_ext/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 active_resource action_mailer active_support ) + end + + def framework_version(framework) + if Object.const_defined?(framework.classify) + require "#{framework}/version" + "#{framework.classify}::VERSION::STRING".constantize + end + 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 + 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 + (table = '<table>').tap do + properties.each do |(name, value)| + table << %(<tr><td class="name">#{CGI.escapeHTML(name.to_s)}</td>) + formatted_value = if value.kind_of?(Array) + "<ul>" + value.map { |v| "<li>#{CGI.escapeHTML(v.to_s)}</li>" }.join + "</ul>" + else + CGI.escapeHTML(value.to_s) + end + table << %(<td class="value">#{formatted_value}</td></tr>) + end + table << '</table>' + 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 + Rails.configuration.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 |