grunt-css-statistics

Grunt plugin like cssstats.com. Generates Json and HTML. Has CSSLint support. (HTML result demo)

This is beta. No unit tests yet. With some config variations it may be buggy.

Getting Started

This plugin requires Grunt ~0.4.5

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-css-statistics --save-dev

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

grunt.loadNpmTasks('grunt-css-statistics');

The "cssstats" task

Overview

In your project's Gruntfile, add a section named cssstats to the data object passed into grunt.initConfig().

grunt.initConfig({
  cssstats: {
    options: {
      // Task-specific options go here.
    },
    your_target: {
      // Target-specific file lists and/or options go here.
    },
  },
});

Options

options.logConsole

Type: Bool Default value: false

Writes the CssStats object to the console.

options.jsonOutput

Type: Bool Default value: true

If set to true a JSON file with the CssStats Object will be written to the destination folder. The filename will be [TARGETNAME].cssstats.json.

options.htmlOutput

Type: Bool Default value: true

If set to true a HTML file with the CssStats results will be written to the destination folder. The filename will be [TARGETNAME].cssstats.html.

options.uniqueDeclarations

Type: Array Default value:

[
  'font-size',
  'float',
  'width',
  'height',
  'color',
  'background-color'
]

Every Css property in this array will be added to the uniqueDeclarations section.

options.addOrigin

Type: Bool Default value: false

If set to true the original CssStats Object from the Node module will be added to the grunt-css-statistics object. You will only get a viewable output in the JSON file.

options.addRawCss

Type: Bool Default value: false

If set to true the analyzed CSS will be added to the object and a code tag with the the analyzed CSS will be added to the HTML output. Warning: If you're working with really large CSS files this can slow down the process extremely.

options.addHtmlStyles

Type: Bool Default value: false

If set to true the analyzed styles will be added to the head of the html file. Warning: If you're working with really large CSS files this can slow down the process extremely.

options.addGraphs

Type: Bool Default value: false

If set to true the you will get the 'Selector Specificity' and the 'Ruleset Size' as a graph in the html file. Warning: If you're working with really large CSS files this can slow down the process extremely.

options.csslint

Type: Bool | String | Object Default value: false

CSSLint is not included in the dependencies. You have to install it first with npm install csslint --save-dev. For more information about CSSLint visit https://github.com/stubbornella/csslint/wiki.

For more information about CSSLint rules visit https://github.com/CSSLint/csslint/wiki/Rules.

Case Bool

  csslint: true

You will get the analysis of your Stylesheets with CSSLint's standard ruleset.

Case String

  csslint: 'path/to/ruleset.json'

You will get the analysis of your Stylesheets with your own ruleset. Your own ruleset will be merged with the CSSLint standards. You have to set rules to false if you don't want them. Ruleset files have to be JSON.

Case Object

  csslint:            {
    clearDefaults: false,                         // true = deletes all standard rules
    ruleset:  {
        rulesetFile: 'path/to/rulesetFile.json', // path to your ruleset file
        'zero-units': true,                      // adds zero-units to ruleset
        'adjoining-classes': false
    },
    groupResults: true                           // group analysis by rules
  }

Take a look at the comments.

todo

Add ability to define own rules.

Usage Examples

Default Options

In this example, the default options are used to do something with whatever. So if the testing file has the content Testing and the 123 file had the content 1 2 3, the generated result would be Testing, 1 2 3.

grunt.initConfig({
  cssstats: {
    options: {},
    files: {
      'path/to/outputFolder': ['path/to/src/**/*.css', 'path/to/123.css'],
    },
  },
});

Custom Options

grunt.initConfig({
  cssstats: {
    options: {
      logConsole: false,
      jsonOutput: true,
      htmlOutput: true,
      uniqueDeclarations: [
          'font-size',
          'float',
          'width',
          'height',
          'color',
          'background-color'
      ],
      addOrigin:          false,
      addRawCss:          false,
      addHtmlStyles:      false,
      addGraphs:          false,
      csslint:            {
        clearDefaults: false,
        ruleset:  {
            rulesetFile: 'path/to/rulesetFile.json',
            'zero-units': true,
            'adjoining-classes': true
        },
        groupResults: true
      }
    },
    files: {
      'path/to/outputFolder': ['path/to/src/**/*.css']
    },
  },
});

Contributing

In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using Grunt.

Release History

• 0.9.7 - fix for issue #6: forEach of undef in getValueCount()
• 0.9.6 - minor, no code changes
• 0.9.5 - added labels to readme …
• 0.9.4 - added labels to readme …
• 0.9.3 - a little bit of clean up …
• 0.9.2 - a little bit of clean up …
• 0.9.1 - added csslint option - fix for rulesets
• 0.9.0 - added csslint option
• 0.8.4 - minor changes on readme.md
• 0.8.0