/** * External dependencies */ const { DefinePlugin } = require( 'webpack' ); const CopyWebpackPlugin = require( 'copy-webpack-plugin' ); const LiveReloadPlugin = require( 'webpack-livereload-plugin' ); const postcss = require( 'postcss' ); const UglifyJS = require( 'uglify-js' ); const { join, basename } = require( 'path' ); const { get } = require( 'lodash' ); /** * WordPress dependencies */ const CustomTemplatedPathPlugin = require( '@wordpress/custom-templated-path-webpack-plugin' ); const DependencyExtractionPlugin = require( '@wordpress/dependency-extraction-webpack-plugin' ); const LibraryExportDefaultPlugin = require( '@wordpress/library-export-default-webpack-plugin' ); /** * Internal dependencies */ const { dependencies } = require( '../../package' ); const baseDir = join( __dirname, '../../' ); /** * Given a string, returns a new string with dash separators converedd to * camel-case equivalent. This is not as aggressive as `_.camelCase` in * converting to uppercase, where Lodash will convert letters following * numbers. * * @param {string} string Input dash-delimited string. * * @return {string} Camel-cased string. */ function camelCaseDash( string ) { return string.replace( /-([a-z])/g, ( match, letter ) => letter.toUpperCase() ); } /** * Maps vendors to copy commands for the CopyWebpackPlugin. * * @param {Object} vendors Vendors to include in the vendor folder. * @param {string} buildTarget The folder in which to build the packages. * * @return {Object[]} Copy object suitable for the CopyWebpackPlugin. */ function mapVendorCopies( vendors, buildTarget ) { return Object.keys( vendors ).map( ( filename ) => ( { from: join( baseDir, `node_modules/${ vendors[ filename ] }` ), to: join( baseDir, `${ buildTarget }/js/dist/vendor/${ filename }` ), } ) ); } module.exports = function( env = { environment: 'production', watch: false, buildTarget: false } ) { const mode = env.environment; const suffix = mode === 'production' ? '.min' : ''; let buildTarget = env.buildTarget ? env.buildTarget : ( mode === 'production' ? 'build' : 'src' ); buildTarget = buildTarget + '/wp-includes'; const WORDPRESS_NAMESPACE = '@wordpress/'; const BUNDLED_PACKAGES = [ '@wordpress/icons' ]; const packages = Object.keys( dependencies ) .filter( ( packageName ) => ! BUNDLED_PACKAGES.includes( packageName ) && packageName.startsWith( WORDPRESS_NAMESPACE ) ) .map( ( packageName ) => packageName.replace( WORDPRESS_NAMESPACE, '' ) ); const vendors = { 'lodash.js': 'lodash/lodash.js', 'wp-polyfill.js': '@babel/polyfill/dist/polyfill.js', 'wp-polyfill-fetch.js': 'whatwg-fetch/dist/fetch.umd.js', 'wp-polyfill-element-closest.js': 'element-closest/element-closest.js', 'wp-polyfill-node-contains.js': 'polyfill-library/polyfills/Node/prototype/contains/polyfill.js', 'wp-polyfill-formdata.js': 'formdata-polyfill/FormData.js', 'moment.js': 'moment/moment.js', 'react.js': 'react/umd/react.development.js', 'react-dom.js': 'react-dom/umd/react-dom.development.js', }; const minifiedVendors = { 'lodash.min.js': 'lodash/lodash.min.js', 'wp-polyfill.min.js': '@babel/polyfill/dist/polyfill.min.js', 'wp-polyfill-formdata.min.js': 'formdata-polyfill/formdata.min.js', 'moment.min.js': 'moment/min/moment.min.js', 'react.min.js': 'react/umd/react.production.min.js', 'react-dom.min.js': 'react-dom/umd/react-dom.production.min.js', }; const minifyVendors = { 'wp-polyfill-fetch.min.js': 'whatwg-fetch/dist/fetch.umd.js', 'wp-polyfill-element-closest.min.js': 'element-closest/element-closest.js', 'wp-polyfill-node-contains.min.js': 'polyfill-library/polyfills/Node/prototype/contains/polyfill.js', }; const blockNames = [ 'archives', 'block', 'calendar', 'categories', 'latest-comments', 'latest-posts', 'navigation', 'rss', 'search', 'shortcode', 'tag-cloud', ]; const phpFiles = { 'block-serialization-default-parser/parser.php': 'wp-includes/class-wp-block-parser.php', ...blockNames.reduce( ( files, blockName ) => { files[ `block-library/src/${ blockName }/index.php` ] = `wp-includes/blocks/${ blockName }.php`; return files; } , {} ), }; const blockMetadataCopies = { from: join( baseDir, `node_modules/@wordpress/block-library/src/+(${ blockNames.join( '|' ) })/block.json` ), test: new RegExp( `\/([^/]+)\/block\.json$` ), to: join( baseDir, `${ buildTarget }/blocks/[1]/block.json` ), }; const developmentCopies = mapVendorCopies( vendors, buildTarget ); const minifiedCopies = mapVendorCopies( minifiedVendors, buildTarget ); const minifyCopies = mapVendorCopies( minifyVendors, buildTarget ).map( ( copyCommand ) => { return { ...copyCommand, transform: ( content ) => { return UglifyJS.minify( content.toString() ).code; }, }; } ); let vendorCopies = mode === "development" ? developmentCopies : [ ...minifiedCopies, ...minifyCopies ]; let cssCopies = packages.map( ( packageName ) => ( { from: join( baseDir, `node_modules/@wordpress/${ packageName }/build-style/*.css` ), to: join( baseDir, `${ buildTarget }/css/dist/${ packageName }/` ), flatten: true, transform: ( content ) => { if ( mode === 'production' ) { return postcss( [ require( 'cssnano' )( { preset: 'default', } ), ] ) .process( content, { from: 'src/app.css', to: 'dest/app.css' } ) .then( ( result ) => result.css ); } return content; }, transformPath: ( targetPath, sourcePath ) => { if ( mode === 'production' ) { return targetPath.replace( /\.css$/, '.min.css' ); } return targetPath; } } ) ); const phpCopies = Object.keys( phpFiles ).map( ( filename ) => ( { from: join( baseDir, `node_modules/@wordpress/${ filename }` ), to: join( baseDir, `src/${ phpFiles[ filename ] }` ), } ) ); const config = { mode, entry: packages.reduce( ( memo, packageName ) => { const name = camelCaseDash( packageName ); memo[ name ] = join( baseDir, `node_modules/@wordpress/${ packageName }` ); return memo; }, {} ), output: { devtoolNamespace: 'wp', filename: `[basename]${ suffix }.js`, path: join( baseDir, `${ buildTarget }/js/dist` ), library: { root: [ 'wp', '[name]' ] }, libraryTarget: 'this', }, resolve: { modules: [ baseDir, 'node_modules', ], alias: { 'lodash-es': 'lodash', }, }, module: { rules: [ { test: /\.js$/, use: [ 'source-map-loader' ], enforce: 'pre', }, ], }, plugins: [ new DefinePlugin( { // Inject the `GUTENBERG_PHASE` global, used for feature flagging. 'process.env.GUTENBERG_PHASE': 1, } ), new LibraryExportDefaultPlugin( [ 'api-fetch', 'deprecated', 'dom-ready', 'redux-routine', 'token-list', 'server-side-render', 'shortcode', ].map( camelCaseDash ) ), new CustomTemplatedPathPlugin( { basename( path, data ) { let rawRequest; const entryModule = get( data, [ 'chunk', 'entryModule' ], {} ); switch ( entryModule.type ) { case 'javascript/auto': rawRequest = entryModule.rawRequest; break; case 'javascript/esm': rawRequest = entryModule.rootModule.rawRequest; break; } if ( rawRequest ) { return basename( rawRequest ); } return path; }, } ), new DependencyExtractionPlugin( { injectPolyfill: true, } ), new CopyWebpackPlugin( [ ...vendorCopies, ...cssCopies, ...phpCopies, blockMetadataCopies, ], ), ], stats: { children: false, }, watch: env.watch, }; if ( config.mode !== 'production' ) { config.devtool = process.env.SOURCEMAP || 'source-map'; } if ( mode === 'development' && env.buildTarget === 'build/' ) { delete config.devtool; config.mode = 'production'; config.optimization = { minimize: false }; } if ( config.mode === 'development' ) { config.plugins.push( new LiveReloadPlugin( { port: process.env.WORDPRESS_LIVE_RELOAD_PORT || 35729 } ) ); } return config; };