Proof of concept: Remove the requirement to check out the gutenberg repository and running the full build script

Gruntfile.js

@@ -53,7 +53,6 @@ module.exports = function(grunt) {
 		webpackFiles = [
 			'wp-includes/assets/*',
 			'wp-includes/css/dist',
-			'wp-includes/blocks/**/*.css',
 			'!wp-includes/assets/script-loader-packages.min.php',
 			'!wp-includes/assets/script-modules-packages.min.php',
 		],
@@ -1468,22 +1467,15 @@ module.exports = function(grunt) {
 	} );
 
 	// 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() {
+	grunt.registerTask( 'gutenberg-download', 'Downloads the built Gutenberg artifact.', function() {
 		const done = this.async();
+		const args = [ 'tools/gutenberg/download-gutenberg.js' ];
+		if ( grunt.option( 'force' ) ) {
+			args.push( '--force' );
+		}
 		grunt.util.spawn( {
 			cmd: 'node',
-			args: [ 'tools/gutenberg/build-gutenberg.js' ],
+			args,
 			opts: { stdio: 'inherit' }
 		}, function( error ) {
 			done( ! error );
@@ -1502,17 +1494,6 @@ module.exports = function(grunt) {
 		} );
 	} );
 
-	grunt.registerTask( 'gutenberg-sync', 'Syncs Gutenberg checkout and build if ref has changed.', function() {
-		const done = this.async();
-		grunt.util.spawn( {
-			cmd: 'node',
-			args: [ 'tools/gutenberg/sync-gutenberg.js' ],
-			opts: { stdio: 'inherit' }
-		}, function( error ) {
-			done( ! error );
-		} );
-	} );
-
 	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';
@@ -1954,7 +1935,7 @@ module.exports = function(grunt) {
 				'build:js',
 				'build:css',
 				'build:codemirror',
-				'gutenberg-sync',
+				'gutenberg-download',
 				'gutenberg-copy',
 				'copy-vendor-scripts',
 				'build:certificates'
@@ -1966,7 +1947,7 @@ module.exports = function(grunt) {
 				'build:js',
 				'build:css',
 				'build:codemirror',
-				'gutenberg-sync',
+				'gutenberg-download',
 				'gutenberg-copy',
 				'copy-vendor-scripts',
 				'replace:source-maps',

package.json

@@ -7,7 +7,8 @@
 		"url": "https://develop.svn.wordpress.org/trunk"
 	},
 	"gutenberg": {
-		"ref": "022d8dd3d461f91b15c1f0410649d3ebb027207f"
+		"sha": "cd4cf58db37e9f774f321df14138dfef5d7e475a",
+		"ghcrRepo": "WordPress/gutenberg/gutenberg-wp-develop-build"
 	},
 	"engines": {
 		"node": ">=20.10.0",
@@ -106,7 +107,7 @@
 		"wicg-inert": "3.1.3"
 	},
 	"scripts": {
-		"postinstall": "npm run gutenberg:sync && npm run gutenberg:copy -- --dev",
+		"postinstall": "npm run gutenberg:download && npm run gutenberg:copy -- --dev",
 		"build": "grunt build",
 		"build:dev": "grunt build --dev",
 		"dev": "grunt watch --dev",
@@ -131,12 +132,10 @@
 		"test:e2e": "wp-scripts test-playwright --config tests/e2e/playwright.config.js",
 		"test:visual": "wp-scripts test-playwright --config tests/visual-regression/playwright.config.js",
 		"typecheck:php": "node ./tools/local-env/scripts/docker.js run --rm php composer phpstan",
-		"gutenberg:checkout": "node tools/gutenberg/checkout-gutenberg.js",
-		"gutenberg:build": "node tools/gutenberg/build-gutenberg.js",
+		"gutenberg:download": "node tools/gutenberg/download-gutenberg.js",
 		"gutenberg:copy": "node tools/gutenberg/copy-gutenberg-build.js",
-		"gutenberg:sync": "node tools/gutenberg/sync-gutenberg.js",
 		"vendor:copy": "node tools/vendors/copy-vendors.js",
 		"sync-gutenberg-packages": "grunt sync-gutenberg-packages",
 		"postsync-gutenberg-packages": "grunt wp-packages:sync-stable-blocks && grunt build --dev && grunt build"
 	}
-}
+}