Add a --time option to the compile and watch commands.

doc-src/content/CHANGELOG.markdown

@@ -14,6 +14,13 @@ The Documentation for the [latest stable release](http://compass-style.org/docs/
 
 The Documentation for the [latest preview release](http://beta.compass-style.org/)
 
+0.11.alpha.4 (12/08/2010)
+-------------------------
+
+* Add a `--time` option to the compile and watch commands. This will print out
+  the time spent compiling each sass file and a total at the end.
+
+
 0.11.alpha.3 (12/05/2010)
 -------------------------
 

lib/compass/actions.rb

@@ -33,19 +33,20 @@ module Compass
       options ||= self.options if self.respond_to?(:options)
       skip_write = options[:dry_run]
       contents = process_erb(contents, options[:erb]) if options[:erb]
+      extra = options[:extra] || ""
       if File.exists?(file_name)
         existing_contents = IO.read(file_name)
         if existing_contents == contents
-          logger.record :identical, basename(file_name)
+          logger.record :identical, basename(file_name), extra
           skip_write = true
         elsif options[:force]
-          logger.record :overwrite, basename(file_name)
+          logger.record :overwrite, basename(file_name), extra
         else
           msg = "File #{basename(file_name)} already exists. Run with --force to force overwrite."
           raise Compass::FilesystemConflict.new(msg)
         end
       else
-        logger.record :create, basename(file_name)
+        logger.record :create, basename(file_name), extra
       end
       if skip_write
         FileUtils.touch file_name unless options[:dry_run]

lib/compass/commands/update_project.rb

@@ -14,6 +14,9 @@ module Compass
           Options:
         }.split("\n").map{|l| l.gsub(/^ */,'')}.join("\n")
 
+        opts.on("--time", "Display compilation times.") do
+          self.options[:time] = true
+        end
         super
       end
     end
@@ -51,6 +54,7 @@ module Compass
                              :sass_files => explicit_sass_files,
                              :dry_run => options[:dry_run])
         compiler_opts[:quiet] = options[:quiet] if options[:quiet]
+        compiler_opts[:time] = options[:time] if options[:time]
         compiler_opts.merge!(additional_options)
         Compass::Compiler.new(working_path,
           Compass.configuration.sass_path,

lib/compass/compiler.rb

@@ -76,6 +76,7 @@ module Compass
       target_directories.each {|dir| directory dir}
 
       # Compile each sass file.
+      result = timed do
         sass_files.zip(css_files).each do |sass_filename, css_filename|
           begin
             compile_if_required sass_filename, css_filename
@@ -84,21 +85,40 @@ module Compass
           end
         end
       end
+      if options[:time]
+        puts "Compilation took #{(result.__duration * 1000).round / 1000.0}s"
+      end
+    end
 
     def compile_if_required(sass_filename, css_filename)
       if should_compile?(sass_filename, css_filename)
-        compile sass_filename, css_filename
+        compile sass_filename, css_filename, :time => options[:time]
       else
         logger.record :unchanged, basename(sass_filename) unless options[:quiet]
       end
     end
 
+    def timed
+      start_time = Time.now
+      res = yield
+      end_time = Time.now
+      res.instance_variable_set("@__duration", end_time - start_time)
+      def res.__duration
+        @__duration
+      end
+      res
+    end
+
     # Compile one Sass file
-    def compile(sass_filename, css_filename)
+    def compile(sass_filename, css_filename, additional_options = {})
+      start_time = end_time = nil
       css_content = logger.red do
+        timed do
           engine(sass_filename, css_filename).render
         end
-      write_file(css_filename, css_content, options.merge(:force => true))
+      end
+      duration = additional_options[:time] ? "(#{(css_content.__duration * 1000).round / 1000.0}s)" : ""
+      write_file(css_filename, css_content, options.merge(:force => true, :extra => duration))
     end
 
     def should_compile?(sass_filename, css_filename)