Notes on using grunt-cssshrink

README.md

• Does some neat tricks like removing spaces, subbing equivalent values (transparent for rgba 0s), using single quotes, etc.
• Didn't strip comments (at least I didn't find the option in Grunt plugin).
• A bit weird that the example doesn't allow the file to be renamed.
• Running it through cssmin first (to remove comments), didn't yield significant savings (< 1KB change)
• Might be useful for really large CSS files.

Gruntfile.coffee

module.exports = (grunt) ->

  grunt.initConfig
    pkg: grunt.file.readJSON 'package.json'

    concat:
      # Stylus doesn't concat well with Bootstrap.
      css:
        src: [
          'vendor/bower/bootstrap/dist/css/bootstrap.css'
          'public/stylesheets/application.css'
        ]
        dest: 'public/stylesheets/application.min.css'

    cssmin:
      compile:
        options:
          keepSpecialComments: 0
        src: [
          'vendor/bower/bootstrap/dist/css/bootstrap.css'
          'public/stylesheets/application.css'
        ]
        dest: 'public/stylesheets/application.min.css'

    cssshrink:
      compile:
        files:
          'public/stylesheets': [
            'public/stylesheets/application.min.css'
          ]

  grunt.registerTask 'build', [
    'cssmin'
    'cssshrink'
  ]