old_contents: 'use strict';
  
  var path = require('path'),
  	time = require('../lib/time'),
  	packageConfig = require('../package.json');
  
  var NODE_MODULES = 'node_modules',
  	NORMALIZE_CSS = 'normalize.css';
  
  module.exports = function (gulp, plugins, config) {
  	return {
  		dependencies: ['csstime-compile-less'],
  		task: function () {
  			var sources = [];
  			// add normalize.css
  			if (config.useNormalizeCss) {
  				sources.push(path.join(
  					NODE_MODULES,
  					packageConfig.name,
  					NODE_MODULES,
  					NORMALIZE_CSS,
  					NORMALIZE_CSS
  				));
  			}
  			// add styles.css compiled from less
  			sources.push(path.join(
  				config.publicRootDir,
  				config.destinationDir,
  				config.stylesFileName + '.css'
  			));
  			// collect styles.css from all components
  			sources.push(path.join(
  				config.publicRootDir,
  				config.componentsDir,
  				'*',
  				config.cssDir,
  				config.stylesFileName + '.css'
  			));
  
  			var processors = [];
  			if (config.postcssConfig.autoprefixer) {
  				processors.push(plugins.postcssProcessors
  					.autoprefixer(config.postcssConfig.autoprefixer));
  			}
  			if (config.postcssConfig.filters) {
  				processors.push(plugins.postcssProcessors
  					.filters(config.postcssConfig.filters));
  			}
  			if (config.postcssConfig.opacity) {
  				processors.push(plugins.postcssProcessors.opacity);
  			}
  
  			return gulp.src(sources)
  				.pipe(plugins.concat(config.stylesFileName + '.css'))
  				.pipe(plugins.if(
  					config.usePostCss,
  					plugins.postcss(processors)
  				))
  				.pipe(plugins.if(
  					config.banner && (typeof config.banner === 'string'),
  					plugins.header(config.banner
  						.replace('<%now%>', time.captureNow()))
  				))
  				.pipe(gulp.dest(path.join(
  					config.publicRootDir,
  					config.destinationDir
  				)));
  		}
  	};
  };
new_contents: 'use strict';
  
  var path = require('path'),
  	time = require('../lib/time'),
  	packageConfig = require('../package.json');
  
  var NODE_MODULES = 'node_modules',
  	NORMALIZE_CSS = 'normalize.css';
  
  module.exports = function (gulp, plugins, config) {
  	return {
  		dependencies: ['csstime-compile-less'],
  		task: function () {
  			var sources = [];
  			// add normalize.css
  			if (config.useNormalizeCss) {
  				sources.push(path.join(
  					NODE_MODULES,
  					packageConfig.name,
  					NODE_MODULES,
  					NORMALIZE_CSS,
  					NORMALIZE_CSS
  				));
  			}
  			// add styles.css compiled from less
  			sources.push(path.join(
  				config.publicRootDir,
  				config.destinationDir,
  				config.stylesFileName + '.css'
  			));
  			// collect styles.css from all components
  			sources.push(path.join(
  				config.publicRootDir,
  				config.componentsDir,
  				'*',
  				config.cssDir,
  				config.stylesFileName + '.css'
  			));
  
  			var processors = [];
  			if (config.postcssConfig.filters) {
  				processors.push(plugins.postcssProcessors
  					.filters(config.postcssConfig.filters));
  			}
  			if (config.postcssConfig.opacity) {
  				processors.push(plugins.postcssProcessors.opacity);
  			}
  			if (config.postcssConfig.autoprefixer) {
  				processors.push(plugins.postcssProcessors
  					.autoprefixer(config.postcssConfig.autoprefixer));
  			}
  
  			return gulp.src(sources)
  				.pipe(plugins.concat(config.stylesFileName + '.css'))
  				.pipe(plugins.if(
  					config.usePostCss,
  					plugins.postcss(processors)
  				))
  				.pipe(plugins.if(
  					config.banner && (typeof config.banner === 'string'),
  					plugins.header(config.banner
  						.replace('<%now%>', time.captureNow()))
  				))
  				.pipe(gulp.dest(path.join(
  					config.publicRootDir,
  					config.destinationDir
  				)));
  		}
  	};
  };
subject: Update postcss