initial commit

Author: Vasfed

.gitignore

@@ -0,0 +1,6 @@
+.rvmrc
+*.gem
+.bundle
+*.rbc
+.yardoc
+Gemfile.lock

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "lib/less/js"]
+	path = lib/less/js
+	url = https://github.com/cloudhead/less.js.git

.rspec

@@ -0,0 +1 @@
+--color

Gemfile

@@ -0,0 +1,3 @@
+source :rubygems
+
+gemspec

README.md

@@ -0,0 +1,52 @@
+csso-rails: Stylesheet Optimizer(CSSO) for Rails Asset pipeline
+=======
+
+Ruby adapter for <https://github.com/afelix/csso>
+
+about
+-----
+  CSSO does structure-optimization for css.
+  (readme and tests/comparison - coming later)
+  Css is usually reduced more that in half in uncompressed and around 15% in gzipped.
+
+usage
+------
+
+From ruby:
+  require 'csso'
+  Csso.optimize("a{ color: #FF0000; }")
+  # produces "a{color:red}"
+
+In Rails 3.1+:  
+  add this gem to your gemfile, and that's it!
+  gem 'csso-rails', :git => ''
+  Upon including it becomes the default compressor,
+  More explicit way - set in config: config.assets.css_compressor = :csso
+
+In command line:
+  ruby_csso non_optimized.css > optimized.css
+
+
+MIT-License
+-------
+
+> Original CSSO code - Copyright (C) 2011 by Sergey Kryzhanovsky
+> ruby gem - Copyright(C) 2012 Vasily Fedoseyev
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

Rakefile

@@ -0,0 +1,9 @@
+require 'bundler'
+require 'bundler/setup'
+require "rspec/core/rake_task"
+
+Bundler::GemHelper.install_tasks
+RSpec::Core::RakeTask.new(:spec)
+
+task :default => :spec
+

bin/ruby_csso

@@ -0,0 +1,25 @@
+#!/usr/bin/env ruby
+
+require 'csso-rails'
+
+def help
+  puts <<-HLP
+  csso- CSS Optimizer (ruby bindings by vasfed)
+Usage:
+  $ ruby_csso < style.css - read stdin and output to stdout
+  $ ruby_csso file1.css [file2.css [...]] - read all files and output to stdout (concatenating, no optimization between files yet)
+  --help - print this help
+  --maniac - enable maniac mode (optimize file multiple times until optimization stops to give any results)
+HLP
+end
+
+maniac = ARGV.delete('--maniac') && true || false
+
+if ($stdin.tty? && ARGV.empty?) || ARGV.delete('-h') || ARGV.delete('--help')
+  help
+else
+  # Well, lets read those files
+  css = ARGF.read
+  
+  puts Csso.optimize(css, maniac)
+end

csso-rails.gemspec

@@ -0,0 +1,31 @@
+# -*- encoding: utf-8 -*-
+$:.push File.expand_path("../lib", __FILE__)
+require "csso/version"
+
+Gem::Specification.new do |s|
+  s.name        = "csso-rails"
+  s.version     = Csso::VERSION
+  s.platform    = Gem::Platform::RUBY
+  s.authors     = ["Vasily Fedoseyev"]
+  s.email       = [""]
+  s.homepage    = "https://github.com/Vasfed/csso-rails"
+  s.summary     = %q{CSS Stylesheet optimizer/compressor for Rails}
+  s.description = %q{Invoke the CSSO from Ruby}
+
+  s.rubyforge_project = "csso-rails"
+
+  s.files         = `git ls-files`.split("\n")
+  js_root = 'lib/csso/js'
+  Dir.chdir(js_root) do
+    s.files += `git ls-files`.split("\n").map {|f| File.join(js_root,f)}
+  end
+  s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
+  s.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
+  s.require_paths = ["lib"]
+
+  s.add_dependency "therubyracer", "~> 0.9.9"
+  s.add_dependency "commonjs", "~> 0.2.0"
+
+  s.add_development_dependency "rake"
+  s.add_development_dependency "rspec", "~> 2.0"
+end

lib/csso-rails.rb

@@ -0,0 +1,7 @@
+require 'csso'
+
+if defined?(Rails)
+  require 'csso/rails'
+else
+  require 'csso'  
+end

lib/csso.rb

@@ -0,0 +1,42 @@
+require 'v8'
+require 'csso/version'
+require 'csso/utils'
+require 'csso/loader'
+
+module Csso
+
+  @loader = Csso::Loader.new
+  @csso = @loader.require('cssoapi')
+
+  def self.js_api
+    @csso
+  end
+
+  def self.optimize(css, maniac_mode=false, structural_optimization=true)
+    if maniac_mode
+      maniac_mode = 4 unless maniac_mode.is_a?(Fixnum) && maniac_mode > 0
+      begin
+        prev_css = css
+        css = Optimizer.new.optimize(css, structural_optimization)
+        maniac_mode -= 1
+      end while maniac_mode > 0 && prev_css != css
+      css
+    else
+      Optimizer.new.optimize(css, structural_optimization)
+    end
+  end
+  
+  
+  class Optimizer
+    include CallJS
+    
+    def optimize(css, structural_optimization=true)
+      return nil unless css.is_a?(String)
+      return css if css.size <= 3
+      calljs do
+        Csso.js_api['justDoIt'].call(css, !structural_optimization)
+      end
+    end
+  end
+  
+end