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grunt-contrib-cssmin v0.9.0 Build Status

Compress CSS files.

Getting Started

This plugin requires Grunt ~0.4.1

If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:

npm install grunt-contrib-cssmin --save-dev

Once the plugin has been installed, it may be enabled inside your Gruntfile with this line of JavaScript:

grunt.loadNpmTasks('grunt-contrib-cssmin');

This plugin was designed to work with Grunt 0.4.x. If you're still using grunt v0.3.x it's strongly recommended that you upgrade, but in case you can't please use v0.3.2.

Cssmin task

Run this task with the grunt cssmin command.

Task targets, files and options may be specified according to the grunt Configuring tasks guide.

Files are compressed with clean-css.

Options

banner

Type: String
Default: null

Prefix the compressed source with the given banner, with a linebreak inbetween.

keepSpecialComments

Type: String Number
Default: '*'

To keep or remove special comments, exposing the underlying option from clean-css. '*' for keeping all (default), 1 for keeping first one, 0 for removing all.

report

Choices: 'min', 'gzip'
Default: 'min'

Either report only minification result or report minification and gzip results. This is useful to see exactly how well clean-css is performing but using 'gzip' will make the task take 5-10x longer to complete. Example output.

Usage Examples

Combine two files into one output file

cssmin: {
  combine: {
    files: {
      'path/to/output.css': ['path/to/input_one.css', 'path/to/input_two.css']
    }
  }
}

Add a banner

cssmin: {
  add_banner: {
    options: {
      banner: '/* My minified css file */'
    },
    files: {
      'path/to/output.css': ['path/to/**/*.css']
    }
  }
}

Minify all contents of a release directory and add a .min.css extension

cssmin: {
  minify: {
    expand: true,
    cwd: 'release/css/',
    src: ['*.css', '!*.min.css'],
    dest: 'release/css/',
    ext: '.min.css'
  }
}

Release History

  • 2014-02-01   v0.9.0   refactor. remove grunt-lib-contrib dependency. backwards-compatibly remove false choice from report.
  • 2014-02-14   v0.8.0   update clean-css v2.1.0
  • 2013-11-23   v0.7.0   update clean-css v2.0.0
  • 2013-09-14   v0.6.2   Support relative URLs via clean-css ~1.1.1.
  • 2013-05-25   v0.6.1   Support import in-lining vis clean-css ~1.0.4.
  • 2013-04-05   v0.6.0   Update clean-css dependency to ~1.0.0
  • 2013-03-14   v0.5.0   Support for 'report' option (false by default)
  • 2013-03-10   v0.4.2   Add banner option Support clean-css keepSpecialComments
  • 2013-02-17   v0.4.1   Update clean-css dependency to ~0.10.0
  • 2013-02-15   v0.4.0   First official release for Grunt 0.4.0.
  • 2013-01-23   v0.4.0rc7   Updating grunt/gruntplugin dependencies to rc7. Changing in-development grunt/gruntplugin dependency versions from tilde version ranges to specific versions.
  • 2013-01-09   v0.4.0rc5   Updating to work with grunt v0.4.0rc5. Switching to this.files api.
  • 2012-11-01   v0.3.2   Update clean-css dep.
  • 2012-10-12   v0.3.1   Rename grunt-contrib-lib dep to grunt-lib-contrib.
  • 2012-09-23   v0.3.0   Options no longer accepted from global config key.
  • 2012-09-10   v0.2.0   Refactored from grunt-contrib into individual repo.

Task submitted by Tim Branyen

This file was generated on Sun Mar 02 2014 16:23:48.