我想弄清楚如何在我的最终输出css文件上运行postcss。
'strict';
const path = require('path');
const webpack = require('webpack');
const StatsPlugin = require('stats-webpack-plugin');
/* POSTCSS Optimizations of CSS files */
const clean = require('postcss-clean');
const colorMin = require('postcss-colormin');
const discardDuplicates = require('postcss-discard-duplicates');
const discardEmpty = require('postcss-discard-empty');
const mergeRules = require('postcss-merge-rules');
const mergeLonghand = require('postcss-merge-longhand');
const minifyFonts = require('postcss-minify-font-values');
const orderedValues = require('postcss-ordered-values');
const uniqueSelectors = require('postcss-unique-selectors');
/* EXTRACT CSS for optimization and parallel loading */
const ExtractTextPlugin = require('extract-text-webpack-plugin');
module.exports = {
entry: './src/index',
output: {
path: path.join(__dirname, 'dist'),
filename: '[name].js',
chunkFilename: '[id].bundle.js',
publicPath: '/dist/',
soureMapFilename: '[file].map'
},
plugins: [
new webpack.optimize.OccurenceOrderPlugin(),
new webpack.NoErrorsPlugin(),
new StatsPlugin('stats.json'),
new ExtractTextPlugin('assets/css/[name].css?[hash]-[chunkhash]-[contenthash]-[name]', {
disable: false,
allChunks: true
})
],
node: {
net: 'empty',
tls: 'empty',
dns: 'empty'
},
module: {
loaders: [{
test: /\.js$/,
loaders: ['babel'],
exclude: /node_modules/,
include: __dirname
},
{
test: /\.scss$/i,
loader: ExtractTextPlugin.extract('style', ['css', 'postcss', 'sass'])
},
{
test: /\.css$/,
loader: ExtractTextPlugin.extract('style', ['css'])
},
{
test: /\.(eot|woff|woff2|ttf|svg|png|jpg)$/,
loader: 'url-loader?limit=30000&name=[name]-[hash].[ext]'
}]
},
postcss() {
return [mergeRules, mergeLonghand, colorMin, clean, discardEmpty,
orderedValues, minifyFonts, uniqueSelectors, discardDuplicates];
},
sassLoader: {
includePaths: [path.resolve(__dirname, './node_modules')]
}
};
我当前的配置适用于编译所有依赖的SASS并将其与静态CSS导入并使用ExtractTextPlugin提取它们。
似乎我可以在CSS的块上运行POSTCSS优化,但不是最终产品。这意味着我无法摆脱重复的CSS规则。
如何在最终状态CSS文件上运行POSTCSS后,sass-loader和extractTextPlugin已经发挥了作用?
答案 0 :(得分:9)
我遇到问题,使用ExtractTextPlugin进行类似的设置工作,我的问题在于我如何使用ExtractTextPlugin插件。
我只是将它用于生产版本,这对我有用:
module: {
loaders: [
{ // styles
test: /\.scss$/,
include: [ path.join(__dirname, 'source/styles') ],
loader: ExtractTextPlugin.extract('style', ['css', 'postcss', 'sass'])
}
]
},
注意['css','postcss','sass']的数组。那是我失踪的部分。此数组将首先解析然后运行将由插件最终提取的样式。
而且,在我正在使用new ExtractTextPlugin('styles-[chunkhash].css')
的插件数组上。
答案 1 :(得分:0)
由于ExtractTextPlugin目前不支持" onComplete"回调或类似,您可以使用WebpackShellPlugin。
设置一个运行所需var input = document.GetElementByID('inputBox').innerHTML;
插件的脚本,并在postcss
中执行您的脚本以处理已编译的CSS。