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55 lines
1.5 KiB
55 lines
1.5 KiB
/*
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* grunt-contrib-cssmin
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* http://gruntjs.com/
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*
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* Copyright (c) 2012 Tim Branyen, contributors
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* Licensed under the MIT license.
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*/
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'use strict';
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module.exports = function(grunt) {
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var helper = require('grunt-lib-contrib').init(grunt);
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grunt.registerMultiTask('cssmin', 'Minify CSS files', function() {
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var options = this.options({
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report: false
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});
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this.files.forEach(function(f) {
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var max = f.src.filter(function(filepath) {
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// Warn on and remove invalid source files (if nonull was set).
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if (!grunt.file.exists(filepath)) {
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grunt.log.warn('Source file "' + filepath + '" not found.');
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return false;
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} else {
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return true;
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}
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})
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.map(grunt.file.read)
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.join(grunt.util.normalizelf(grunt.util.linefeed));
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var min = minifyCSS(max, options);
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if (min.length < 1) {
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grunt.log.warn('Destination not written because minified CSS was empty.');
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} else {
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if ( options.banner ) {
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min = options.banner + grunt.util.linefeed + min;
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}
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grunt.file.write(f.dest, min);
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grunt.log.writeln('File ' + f.dest + ' created.');
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if(options.report) {
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helper.minMaxInfo(min, max, options.report);
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}
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}
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});
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});
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var minifyCSS = function(source, options) {
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try {
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return require('clean-css').process(source, options);
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} catch (e) {
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grunt.log.error(e);
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grunt.fail.warn('css minification failed.');
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}
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};
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};
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