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Extending the WordPress Create Block Script webpack Config with Polyfil's and Minification
{
"name": "plugin-slug",
"version": "0.1.0",
"description": "Plugin Description",
"author": "The WordPress Contributors",
"license": "GPL-2.0-or-later",
"main": "build/index.js",
"scripts": {
"build": "wp-scripts build",
"lint:css": "wp-scripts lint-style",
"lint:js": "wp-scripts lint-js",
"start": "wp-scripts start",
"packages-update": "wp-scripts packages-update"
},
"devDependencies": {
"@wordpress/scripts": "^7.1.0",
"css-loader": "^3.4.2",
"ignore-emit-webpack-plugin": "^2.0.2",
"mini-css-extract-plugin": "^0.9.0",
"node-sass": "^4.13.1",
"optimize-css-assets-webpack-plugin": "^5.0.3",
"postcss-loader": "^3.0.0",
"postcss-preset-env": "^6.7.0",
"sass-loader": "^8.0.2",
"terser-webpack-plugin": "^2.3.5"
}
}
const defaultConfig = require( '@wordpress/scripts/config/webpack.config' );
const IgnoreEmitWebPackPlugin = require( 'ignore-emit-webpack-plugin' );
const MiniCssExtractPlugin = require( 'mini-css-extract-plugin' );
const OptimizeCssAssetsWebpackPlugin = require('optimize-css-assets-webpack-plugin');
const postcssPresetEnv = require( 'postcss-preset-env' );
const production = 'development' !== process.env.NODE_ENV;
const TerserWebPackPlugin = require( 'terser-webpack-plugin' );
module.exports = {
...defaultConfig,
module: {
...defaultConfig.module,
rules: [
...defaultConfig.module.rules,
{
test: /\.s[ac]ss$/i,
use: [
{ loader: MiniCssExtractPlugin.loader },
{ loader: 'css-loader' },
{
loader: 'postcss-loader',
options: {
plugins: () => [ postcssPresetEnv( { stage: 3 } ) ],
},
},
{ loader: 'sass-loader' },
],
},
],
},
optimization: {
...defaultConfig.optimization,
minimize: true,
minimizer: [
new OptimizeCssAssetsWebpackPlugin(),
new TerserWebPackPlugin(),
],
splitChunks: {
cacheGroups: {
default: false,
editor: {
chunks: 'all',
enforce: true,
name: 'editor',
test: /editor\.s[ac]ss$/i,
},
style: {
chunks: 'all',
enforce: true,
name: 'style',
test: /style\.s[ac]ss$/i,
},
},
},
},
plugins: [
...defaultConfig.plugins,
new IgnoreEmitWebPackPlugin( [ 'editor.js', 'style.js' ] ),
new MiniCssExtractPlugin( {
filename: '../[name].css',
} ),
],
};
if ( production ) {
module.exports.devtool = false;
}
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