Revert introduction of build steps (temporary)

.github/workflows/reusable-phpunit-tests-v3.yml

@@ -165,9 +165,6 @@ jobs:
       - name: Install npm dependencies
         run: npm ci
 
-      - name: Build WordPress
-        run: npm run build:dev
-
       - name: General debug information
         run: |
           npm --version

.github/workflows/reusable-test-core-build-process.yml

@@ -39,7 +39,6 @@ on:
 
 env:
   PUPPETEER_SKIP_DOWNLOAD: ${{ true }}
-  NODE_OPTIONS: --max-old-space-size=4096
 
 # Disable permissions for all available scopes by default.
 # Any needed permissions should be configured at the job level.

.github/workflows/reusable-test-gutenberg-build-process.yml

@@ -0,0 +1,100 @@
+##
+# A reusable workflow that tests the Gutenberg plugin build process when run within a wordpress-develop checkout.
+##
+name: Test the Gutenberg plugin Build Process
+
+on:
+  workflow_call:
+    inputs:
+      os:
+        description: 'Operating system to run tests on'
+        required: false
+        type: 'string'
+        default: 'ubuntu-24.04'
+      directory:
+        description: 'Directory to run WordPress from. Valid values are `src` or `build`'
+        required: false
+        type: 'string'
+        default: 'src'
+
+env:
+  GUTENBERG_DIRECTORY: ${{ inputs.directory == 'build' && 'build' || 'src' }}/wp-content/plugins/gutenberg
+  PUPPETEER_SKIP_DOWNLOAD: ${{ true }}
+  NODE_OPTIONS: '--max-old-space-size=8192'
+
+# Disable permissions for all available scopes by default.
+# Any needed permissions should be configured at the job level.
+permissions: {}
+
+jobs:
+  # Verifies that installing npm dependencies and building the Gutenberg plugin works as expected.
+  #
+  # Performs the following steps:
+  # - Checks out the repository.
+  # - Checks out the Gutenberg plugin into the plugins directory.
+  # - Sets up Node.js.
+  # - Logs debug information about the GitHub Action runner.
+  # - Installs Gutenberg npm dependencies.
+  # - Runs the Gutenberg build process.
+  # - Installs Core npm dependencies.
+  # - Builds WordPress to run from the relevant location (src or build).
+  # - Builds Gutenberg.
+  # - Ensures version-controlled files are not modified or deleted.
+  build-process-tests:
+    name: ${{ contains( inputs.os, 'macos-' ) && 'MacOS' || contains( inputs.os, 'windows-' ) && 'Windows' || 'Linux' }}
+    permissions:
+      contents: read
+    runs-on: ${{ inputs.os }}
+    timeout-minutes: 30
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
+          persist-credentials: false
+
+      - name: Checkout Gutenberg plugin
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          repository: 'WordPress/gutenberg'
+          path: ${{ env.GUTENBERG_DIRECTORY }}
+          show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
+          persist-credentials: false
+
+      - name: Set up Node.js
+        uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
+        with:
+          node-version-file: '.nvmrc'
+          cache: npm
+          cache-dependency-path: |
+            package-lock.json
+            ${{ env.GUTENBERG_DIRECTORY }}/package-lock.json
+
+      - name: Log debug information
+        run: |
+          npm --version
+          node --version
+          curl --version
+          git --version
+
+      - name: Install Gutenberg Dependencies
+        run: npm ci
+        working-directory: ${{ env.GUTENBERG_DIRECTORY }}
+
+      - name: Build Gutenberg
+        run: npm run build
+        working-directory: ${{ env.GUTENBERG_DIRECTORY }}
+
+      - name: Install Core Dependencies
+        run: npm ci
+
+      - name: Build WordPress to run from ${{ inputs.directory }}
+        run: npm run ${{ inputs.directory == 'src' && 'build:dev' || 'build' }}
+
+      - name: Run Gutenberg build script after building Core to run from ${{ inputs.directory }}
+        run: npm run build
+        working-directory: ${{ env.GUTENBERG_DIRECTORY }}
+
+      - name: Ensure version-controlled files are not modified or deleted during building
+        run: git diff --exit-code

.github/workflows/reusable-test-local-docker-environment-v1.yml

@@ -120,9 +120,6 @@ jobs:
       - name: Install npm dependencies
         run: npm ci
 
-      - name: Build WordPress
-        run: npm run build:dev
-
       - name: General debug information
         run: |
           npm --version

.github/workflows/test-build-processes.yml

@@ -32,6 +32,7 @@ on:
       # Confirm any changes to relevant workflow files.
       - '.github/workflows/test-build-processes.yml'
       - '.github/workflows/reusable-test-core-build-process.yml'
+      - '.github/workflows/reusable-test-gutenberg-build-process.yml'
   workflow_dispatch:
 
 # Cancels all previous workflow runs for pull requests that have not completed.
@@ -97,13 +98,54 @@ jobs:
       os: ${{ matrix.os }}
       directory: ${{ matrix.directory }}
 
+  # Tests the Gutenberg plugin build process within a wordpress-develop checkout.
+  test-gutenberg-build-process:
+    name: Gutenberg running from ${{ matrix.directory }}
+    uses: ./.github/workflows/reusable-test-gutenberg-build-process.yml
+    permissions:
+      contents: read
+    if: ${{ github.repository == 'WordPress/wordpress-develop' }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ 'ubuntu-24.04' ]
+        directory: [ 'src', 'build' ]
+    with:
+      os: ${{ matrix.os }}
+      directory: ${{ matrix.directory }}
+
+  # Tests the Gutenberg plugin build process on additional operating systems.
+  #
+  # This is separate from the job above in order to use stricter conditions when determining when to test additional
+  # operating systems. This avoids unintentionally consuming excessive minutes. Windows-based jobs consume minutes at a
+  # 2x rate, and MacOS-based jobs at a 10x rate.
+  # See https://docs.github.com/en/billing/concepts/product-billing/github-actions#per-minute-rates.
+  #
+  # The `matrix` and `runner` contexts are not available for use within `if` expressions. So there is
+  # currently no way to determine the OS being used on a given job.
+  # See https://docs.github.com/en/actions/learn-github-actions/contexts#context-availability.
+  test-gutenberg-build-process-additional-os:
+    name: Gutenberg running from ${{ matrix.directory }}
+    uses: ./.github/workflows/reusable-test-gutenberg-build-process.yml
+    permissions:
+      contents: read
+    if: ${{ github.repository == 'WordPress/wordpress-develop' }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ 'macos-15', 'windows-2025' ]
+        directory: [ 'src', 'build' ]
+    with:
+      os: ${{ matrix.os }}
+      directory: ${{ matrix.directory }}
+
   slack-notifications:
     name: Slack Notifications
     uses: ./.github/workflows/slack-notifications.yml
     permissions:
       actions: read
       contents: read
-    needs: [ test-core-build-process, test-core-build-process-additional-os ]
+    needs: [ test-core-build-process, test-core-build-process-additional-os, test-gutenberg-build-process, test-gutenberg-build-process-additional-os ]
     if: ${{ github.repository == 'WordPress/wordpress-develop' && github.event_name != 'pull_request' && always() }}
     with:
       calling_status: ${{ contains( needs.*.result, 'cancelled' ) && 'cancelled' || contains( needs.*.result, 'failure' ) && 'failure' || 'success' }}

.gitignore

@@ -20,7 +20,6 @@ wp-tests-config.php
 /node_modules
 /npm-debug.log
 /build
-/gutenberg
 /tests/phpunit/build
 /wp-cli.local.yml
 /jsdoc
@@ -31,17 +30,15 @@ wp-tests-config.php
 /src/wp-admin/css/colors/*/*.css
 /src/wp-admin/js
 /src/wp-includes/assets/*
+!/src/wp-includes/assets/script-loader-packages.min.php
+!/src/wp-includes/assets/script-modules-packages.min.php
 /src/wp-includes/js
 /src/wp-includes/css/dist
 /src/wp-includes/css/*.min.css
 /src/wp-includes/css/*-rtl.css
-/src/wp-includes/blocks/*
-!/src/wp-includes/blocks/index.php
-/src/wp-includes/build
-/src/wp-includes/class-wp-block-parser.php
-/src/wp-includes/class-wp-block-parser-block.php
-/src/wp-includes/class-wp-block-parser-frame.php
-/src/wp-includes/theme.json
+/src/wp-includes/blocks/**/*.css
+/src/wp-includes/blocks/**/*.js
+/src/wp-includes/blocks/**/*.js.map
 /packagehash.txt
 /artifacts
 /setup.log

Gruntfile.js

@@ -3,6 +3,7 @@
 /* globals Set */
 var webpackConfig = require( './webpack.config' );
 var installChanged = require( 'install-changed' );
+var json2php = require( 'json2php' );
 
 module.exports = function(grunt) {
 	var path = require('path'),
@@ -1278,14 +1279,6 @@ module.exports = function(grunt) {
 							BUILD_DIR + 'wp-includes/js/dist/commands.js',
 						],
 						dest: BUILD_DIR + 'wp-includes/js/dist/'
-					},
-					{
-						expand: true,
-						flatten: true,
-						src: [
-							BUILD_DIR + 'wp-includes/js/dist/vendor/**/*.js'
-						],
-						dest: BUILD_DIR + 'wp-includes/js/dist/vendor/'
 					}
 				]
 			}
@@ -1421,58 +1414,6 @@ module.exports = function(grunt) {
 		grunt.task.run( 'wp-packages:refresh-deps' );
 	} );
 
-	// Gutenberg integration tasks.
-	grunt.registerTask( 'gutenberg-checkout', 'Checks out the Gutenberg repository.', function() {
-		const done = this.async();
-		grunt.util.spawn( {
-			cmd: 'node',
-			args: [ 'tools/gutenberg/checkout-gutenberg.js' ],
-			opts: { stdio: 'inherit' }
-		}, function( error ) {
-			done( ! error );
-		} );
-	} );
-
-	grunt.registerTask( 'gutenberg-build', 'Builds the Gutenberg repository.', function() {
-		const done = this.async();
-		grunt.util.spawn( {
-			cmd: 'node',
-			args: [ 'tools/gutenberg/build-gutenberg.js' ],
-			opts: { stdio: 'inherit' }
-		}, function( error ) {
-			done( ! error );
-		} );
-	} );
-
-	grunt.registerTask( 'gutenberg-copy', 'Copies Gutenberg build output to WordPress Core.', function() {
-		const done = this.async();
-		const buildDir = grunt.option( 'dev' ) ? 'src' : 'build';
-		grunt.util.spawn( {
-			cmd: 'node',
-			args: [ 'tools/gutenberg/copy-gutenberg-build.js', `--build-dir=${ buildDir }` ],
-			opts: { stdio: 'inherit' }
-		}, function( error ) {
-			done( ! error );
-		} );
-	} );
-
-	grunt.registerTask( 'gutenberg-integrate', 'Complete Gutenberg integration workflow.', [
-		'gutenberg-build',
-		'gutenberg-copy'
-	] );
-
-	grunt.registerTask( 'copy-vendor-scripts', 'Copies vendor scripts from node_modules to wp-includes/js/dist/vendor/.', function() {
-		const done = this.async();
-		const buildDir = grunt.option( 'dev' ) ? 'src' : 'build';
-		grunt.util.spawn( {
-			cmd: 'node',
-			args: [ 'tools/vendors/copy-vendors.js', `--build-dir=${ buildDir }` ],
-			opts: { stdio: 'inherit' }
-		}, function( error ) {
-			done( ! error );
-		} );
-	} );
-
 	grunt.renameTask( 'watch', '_watch' );
 
 	grunt.registerTask( 'watch', function() {
@@ -1628,6 +1569,23 @@ module.exports = function(grunt) {
 		}
 	} );
 
+	grunt.registerTask( 'copy:block-json', 'Copies block.json file contents to block-json.php.', function() {
+		var blocks = {};
+		grunt.file.recurse( SOURCE_DIR + 'wp-includes/blocks', function( abspath, rootdir, subdir, filename ) {
+			if ( /^block\.json$/.test( filename ) ) {
+				blocks[ subdir ] = grunt.file.readJSON( abspath );
+			}
+		} );
+		grunt.file.write(
+			SOURCE_DIR + 'wp-includes/blocks/blocks-json.php',
+			'<?php return ' + json2php.make( {
+				linebreak: '\n',
+				indent: '  ',
+				shortArraySyntax: false
+			} )( blocks ) + ';'
+		);
+	} );
+
 	grunt.registerTask( 'copy:js', [
 		'copy:npm-packages',
 		'copy:vendor-js',
@@ -1765,6 +1723,7 @@ module.exports = function(grunt) {
 	grunt.registerTask( 'build:files', [
 		'clean:files',
 		'copy:files',
+		'copy:block-json',
 		'copy:version',
 	] );
 
@@ -1894,8 +1853,6 @@ module.exports = function(grunt) {
 			grunt.task.run( [
 				'build:js',
 				'build:css',
-				'gutenberg-integrate',
-				'copy-vendor-scripts',
 				'build:certificates'
 			] );
 		} else {
@@ -1904,8 +1861,6 @@ module.exports = function(grunt) {
 				'build:files',
 				'build:js',
 				'build:css',
-				'gutenberg-integrate',
-				'copy-vendor-scripts',
 				'replace:source-maps',
 				'verify:build'
 			] );