lib/travis/tools/system.rb in travis-1.5.3 vs lib/travis/tools/system.rb in travis-1.5.4

@@ -4,8 +4,46 @@
       extend self
 
       def windows?
         File::ALT_SEPARATOR == "\\"
       end
+
+      def mac?
+        RUBY_PLATFORM =~ /darwin/i
+      end
+
+      def linux?
+        RUBY_PLATFORM =~ /linux/i
+      end
+
+      def os
+        @os ||= windows? ? "Windows" : `uname`.chomp
+      end
+
+      def ruby_engine
+        defined?(RUBY_ENGINE) ? RUBY_ENGINE : 'ruby'
+      end
+
+      def ruby_version
+        "%s-p%s" % [RUBY_VERSION, RUBY_PATCHLEVEL]
+      end
+
+      def ruby
+        case ruby_engine
+        when 'ruby'  then "Ruby #{ruby_version}"
+        when 'jruby' then "JRuby #{JRUBY_VERSION} like Ruby #{ruby_version}"
+        when 'rbx'   then "Rubinius #{Rubinius.version[/\d\S+/]} like Ruby #{ruby_version}"
+        else              "#{ruby_engine} like Ruby #{ruby_version}"
+        end
+      end
+
+      def rubygems
+        return "no RubyGems" unless defined? Gem
+        "RubyGems #{Gem::VERSION}"
+      end
+
+      def description(*args)
+        [ os, ruby, rubygems, *args.flatten].compact.uniq.join("; ")
+      end
     end
   end
 end