Tools: Update packages, use wp-scripts for build process

.github/workflows/build.yml

@@ -12,10 +12,10 @@ jobs:
               uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579 # v2.4.0
 
             - name: Install NodeJS
-              uses: actions/setup-node@5b52f097d36d4b0b2f94ed6de710023fbb8b2236 # v3.1.0
+              uses: actions/setup-node@eeb10cff27034e7acf239c5d29f62154018672fd # v3.3.0
               with:
                   node-version-file: '.nvmrc'
-                  cache: 'npm'
+                  cache: yarn
 
             - name: Install all dependencies
               run: |

.nvmrc

@@ -1 +1 @@
-14
+20

bin/build.js

@@ -13,23 +13,26 @@ const { sync: spawn } = require( 'cross-spawn' );
 const postCssConfig = require( '../postcss.config.js' );
 
 /**
- * Build the JS files using webpack, if the `src` directory exists.
+ * Build the files, if the `src` directory exists.
+ *
+ * This builds JS and any SCSS, using wp-scripts. We can't use wp-scripts
+ * directly due to the folder structure of the blocks, but can pass through
+ * the folders with CLI args.
  *
  * @param {string} inputDir
  * @param {string} outputDir
  */
-async function maybeBuildJavaScript( inputDir, outputDir ) {
+async function maybeBuildBlock( inputDir, outputDir ) {
 	const project = path.basename( path.dirname( inputDir ) );
 	if ( fs.existsSync( inputDir ) ) {
-		// Set the src directory based on the relative location from projet root.
-		process.env.WP_SRC_DIRECTORY = path.relative( path.dirname( __dirname ), inputDir );
-		const { status, stdout } = spawn(
-			resolveBin( 'webpack' ),
+		// Run wp-scripts with a specific input and output directory.
+		const { status, output } = spawn(
+			resolveBin( '@wordpress/scripts', { executable: 'wp-scripts' } ),
 			[
-				'--config',
-				path.join( path.dirname( __dirname ), 'webpack.config.js' ),
-				'--output-path',
-				outputDir,
+				'build',
+				'--experimental-modules',
+				'--webpack-src-dir=' + path.relative( path.dirname( __dirname ), inputDir ),
+				'--output-path=' + outputDir,
 				'--color', // Enables colors in `stdout`.
 			],
 			{
@@ -38,10 +41,10 @@ async function maybeBuildJavaScript( inputDir, outputDir ) {
 		);
 		// Only output the webpack result if there was an issue.
 		if ( 0 !== status ) {
-			console.log( stdout.toString() );
-			console.log( chalk.red( `Error in JavaScript for ${ project }` ) );
+			console.log( output.toString() );
+			console.log( chalk.red( `Error in block for ${ project }` ) );
 		} else {
-			console.log( chalk.green( `JavaScript built for ${ project }` ) );
+			console.log( chalk.green( `Block built for ${ project }` ) );
 		}
 	}
 }
@@ -109,7 +112,10 @@ projects.forEach( async ( file ) => {
 
 		// We `await` because JS needs to be built first— the first webpack step deletes the build
 		// directory, and could remove the built CSS if it was truely async.
-		await maybeBuildJavaScript( path.resolve( path.join( basePath, 'src' ) ), outputDir );
+		await maybeBuildBlock( path.resolve( path.join( basePath, 'src' ) ), outputDir );
+
+		// `maybeBuildBlock` supports SCSS, but current blocks still have postCSS
+		// files. Until those are converted, we still need a separate PostCSS step.
 		await maybeBuildPostCSS( path.resolve( path.join( basePath, 'postcss' ) ), outputDir );
 	} catch ( error ) {
 		console.log( chalk.red( `Error in ${ file }:` ), error.message );

bin/watch.js

@@ -49,7 +49,7 @@ function isSourceFile( filename ) {
 	const relativePath = path.relative( process.cwd(), filename ).replace( /\\/g, '/' );
 
 	return (
-		[ /\/src\/.+\.(js|json|ts|tsx)$/, /\/postcss\/.+\.(pcss)$/ ].some( ( regex ) =>
+		[ /\/src\/.+\.(js|json|ts|tsx|scss)$/, /\/postcss\/.+\.(pcss)$/ ].some( ( regex ) =>
 			regex.test( relativePath )
 		) && ! [ /\/__tests__\/.+/, /.\.(spec|test)\.js$/ ].some( ( regex ) => regex.test( relativePath ) )
 	);

mu-plugins/blocks/language-suggest/src/edit.js

@@ -7,7 +7,7 @@ import { useBlockProps } from '@wordpress/block-editor';
  * The edit function describes the structure of your block in the context of the
  * editor. This represents what the editor will render when the block is used.
  *
- * @return {WPElement} Element to render.
+ * @return {Element} Element to render.
  */
 export default function Edit() {
 	return (

mu-plugins/blocks/language-suggest/src/save.js

@@ -8,7 +8,7 @@ import { useBlockProps } from '@wordpress/block-editor';
  * be combined into the final markup, which is then serialized by the block
  * editor into `post_content`.
  *
- * @return {WPElement} Element to render.
+ * @return {Element} Element to render.
  */
 export default function save() {
 	return <div { ...useBlockProps.save() }></div>;

mu-plugins/blocks/latest-news/src/edit.js

@@ -19,7 +19,7 @@ import ServerSideRender from '@wordpress/server-side-render';
  * @param {Function} props.setAttributes
  * @param {string}   props.name
  *
- * @return {WPElement} Element to render.
+ * @return {Element} Element to render.
  */
 export default function Edit( { attributes, setAttributes, name } ) {
 	const { blogId, perPage, showCategories } = attributes;

mu-plugins/blocks/sidebar-container/src/view.js

@@ -42,7 +42,7 @@ function getCustomPropValue( name, element = document.body ) {
 function onScroll() {
 	// Only run the scroll code if the sidebar is floating on a wide screen.
 	if ( ! mainEl || ! container || ! window.matchMedia( '(min-width: 1200px)' ).matches ) {
-		return;
+		return false;
 	}
 
 	const scrollPosition = window.scrollY - ADMIN_BAR_HEIGHT;

package.json

@@ -12,28 +12,27 @@
 		"url": "https://github.com/WordPress/wporg-mu-plugins/issues"
 	},
 	"devDependencies": {
-		"@wordpress/browserslist-config": "4.1.2",
-		"@wordpress/env": "5.5.0",
-		"@wordpress/scripts": "23.5.0",
+		"@wordpress/browserslist-config": "5.33.0",
+		"@wordpress/env": "9.2.0",
+		"@wordpress/scripts": "27.1.0",
 		"chalk": "4.1.2",
 		"cross-spawn": "7.0.3",
-		"cssnano": "5.1.11",
-		"node-watch": "^0.7.3",
-		"postcss": "8.4.14",
-		"postcss-cli": "9.1.0",
-		"postcss-import": "14.1.0",
-		"postcss-preset-env": "7.7.1",
+		"cssnano": "6.0.3",
+		"node-watch": "0.7.4",
+		"postcss": "8.4.33",
+		"postcss-cli": "11.0.0",
+		"postcss-import": "16.0.0",
+		"postcss-preset-env": "9.3.0",
 		"resolve-bin": "1.0.1",
-		"rtlcss": "3.5.0",
-		"url-loader": "^3.0.0",
-		"webpack": "5.47.1",
-		"webpack-cli": "4.9.1"
+		"rtlcss": "4.1.1",
+		"url-loader": "4.1.1"
 	},
 	"browserslist": [
 		"extends @wordpress/browserslist-config"
 	],
 	"scripts": {
 		"build": "NODE_ENV=production ./bin/build.js",
+		"build:dev": "NODE_ENV=development ./bin/build.js",
 		"font-subset": "./bin/font-subset.js",
 		"prestart": "./bin/build.js",
 		"start": "NODE_ENV=development ./bin/watch.js",
@@ -42,7 +41,7 @@
 		"setup:tools": "yarn install && composer install && TEXTDOMAIN=wporg composer exec update-configs",
 		"update:tools": "composer update && TEXTDOMAIN=wporg composer exec update-configs",
 		"wp-env": "wp-env",
-		"test:php": "wp-env run phpunit 'phpunit -c /var/www/html/phpunit.xml.dist --verbose'"
+		"test:php": "wp-env run tests-cli --env-cwd=/var/www/html/ phpunit"
 	},
 	"rtlcssConfig": {},
 	"stylelint": {