PostCSS Sorting

PostCSS plugin to keep rules and at-rules content in order.

Also available as Sublime Text, Atom, VS Code, and Emacs plugin.

Lint and autofix style sheets order with stylelint-order.

Features

• Sorts rules and at-rules content.
• Sorts properties.
• Sorts at-rules by different options.
• Groups properties, custom properties, dollar variables, nested rules, nested at-rules.
• Supports CSS, SCSS (using postcss-scss), HTML (with postcss-html), CSS-in-JS (with postcss-jsx), PreCSS and most likely any other syntax added by other PostCSS plugins.

Installation

$ npm install --save-dev postcss postcss-sorting

Options

The plugin has no default options. Everything is disabled by default.

• order: Specify the order of content within declaration blocks.
• properties-order: Specify the order of properties within declaration blocks.
• unspecified-properties-position: Specify position for properties not specified in properties-order.
• throw-validate-errors: Throw config validation errors instead of showing and ignoring them. Defaults to false.

Caveats

Handling comments

Comments that are before node and on a separate line linked to that node. Shared-line comments are also linked to that node. Shared-line comments are comments which are located after a node and on the same line as a node.

a {
	top: 5px; /* shared-line comment belongs to `top` */
	/* comment belongs to `bottom` */
	/* comment belongs to `bottom` */
	bottom: 15px; /* shared-line comment belongs to `bottom` */
}

Ignored at-rules

Some at-rules, like control and function directives in Sass, are ignored. It means rules won't touch content inside these at-rules, as doing so could change or break functionality.

CSS-in-JS

Plugin will ignore rules, which have template literal interpolation, to avoid breaking logic:

const Component = styled.div`
	/* The following properties WILL NOT be sorted, because interpolation is on properties level */
	z-index: 1;
	top: 1px;
	${props => props.great && 'color: red'};
	position: absolute;
	display: block;

	div {
		/* The following properties WILL be sorted, because interpolation for property value only */
		z-index: 2;
		position: static;
		top: ${2 + 10}px;
		display: inline-block;
	}
`;

Migration from 2.x

Remove all *-empty-line-before and clean-empty-lines options. Use stylelint with --fix option instead.

properties-order doesn't support property groups. Convert it to a simple array. Use stylelint-order with --fix option for empty line before property groups.

Config for 2.x:

{
	"properties-order": [
		{
			"properties": [
				"margin",
				"padding"
			]
		},
		{
			"emptyLineBefore": true,
			"properties": [
				"border",
				"background"
			]
		}
	]
}

Config for 3.x:

{
	"properties-order": [
		"margin",
		"padding",
		"border",
		"background"
	]
}

Usage

See PostCSS docs for examples for your environment.

Text editor

This plugin available as Sublime Text, Atom, VS Code, and Emacs plugin.

Gulp

Add Gulp PostCSS and PostCSS Sorting to your build tool:

npm install gulp-postcss postcss-sorting --save-dev

Enable PostCSS Sorting within your Gulpfile:

var postcss = require('gulp-postcss');
var sorting = require('postcss-sorting');

gulp.task('css', function () {
	return gulp.src('./css/src/*.css').pipe(
		postcss([
			sorting({ /* options */ })
		])
	).pipe(
		gulp.dest('./css/src')
	);
});

Grunt

Add Grunt PostCSS and PostCSS Sorting to your build tool:

npm install grunt-postcss postcss-sorting --save-dev

Enable PostCSS Sorting within your Gruntfile:

grunt.loadNpmTasks('grunt-postcss');

grunt.initConfig({
	postcss: {
		options: {
			processors: [
				require('postcss-sorting')({ /* options */ })
			]
		},
		dist: {
			src: 'css/*.css'
		}
	}
});

Command Line

Add postcss-cli and PostCSS Sorting to your project:

npm install postcss-cli postcss-sorting --save-dev

Create an appropriate postcss.config.js like this example:

module.exports = (ctx) => ({
  plugins: {
    'postcss-sorting': {
      'order': [
        'custom-properties',
        'dollar-variables',
        'declarations',
        'at-rules',
        'rules'
      ],

      'properties-order': 'alphabetical',

      'unspecified-properties-position': 'bottom'
    }
  }
})

Or, add the 'postcss-sorting' section to your existing postcss-cli configuration file. Next, execute:

postcss -c postcss.config.js  --no-map -r your_css_file.css

For more information and options, please consult the postcss-cli docs.

Related tools

stylelint and stylelint-order help lint style sheets and let you know if style sheet order is correct. Also, they could autofix style sheets.

I recommend Prettier for formatting style sheets.