Build: Reduce VIPS build size by excluding .map and non-minified files

src/wp-includes/script-modules.php

@@ -190,6 +190,12 @@ function wp_default_script_modules() {
 			wp_interactivity()->add_client_navigation_support_to_script_module( $script_module_id );
 		}
 
+		// VIPS files are always minified — the non-minified versions are not
+		// shipped because they are ~10MB of inlined WASM with no debugging value.
+		if ( str_starts_with( $file_name, 'vips/' ) && ! str_contains( $file_name, '.min.' ) ) {
+			$file_name = str_replace( '.js', '.min.js', $file_name );
+		}
+
 		$path        = includes_url( "js/dist/script-modules/{$file_name}" );
 		$module_deps = $script_module_data['module_dependencies'] ?? array();
 		wp_register_script_module( $script_module_id, $path, $module_deps, $script_module_data['version'], $args );

tests/phpunit/tests/script-modules/wpScriptModules.php

@@ -1903,6 +1903,27 @@ public function test_dependent_of_default_script_modules() {
 		$this->assertEqualHTML( $expected, $actual );
 	}
 
+	/**
+	 * Tests that VIPS script modules always use minified file paths.
+	 *
+	 * Non-minified VIPS files are not shipped because they are ~10MB of
+	 * inlined WASM with no debugging value, so the registration should
+	 * always point to the .min.js variants.
+	 *
+	 * @ticket 64734
+	 *
+	 * @covers ::wp_default_script_modules
+	 */
+	public function test_vips_script_modules_always_use_minified_paths() {
+		wp_default_script_modules();
+		wp_enqueue_script_module( '@wordpress/vips/loader' );
+
+		$actual = get_echo( array( wp_script_modules(), 'print_enqueued_script_modules' ) );
+
+		$this->assertStringContainsString( 'vips/loader.min.js', $actual );
+		$this->assertStringNotContainsString( 'vips/loader.js"', $actual );
+	}
+
 	/**
 	 * Normalizes markup for snapshot.
 	 *

tools/gutenberg/copy-gutenberg-build.js

@@ -167,6 +167,21 @@ function copyDirectory( src, dest, transform = null, options = {} ) {
 
 			copyDirectory( srcPath, destPath, transform, options );
 		} else {
+			// Skip source map files (.map) — these are not useful in Core
+			// and the sourceMappingURL references are already stripped from JS files.
+			if ( /\.map$/.test( entry.name ) ) {
+				continue;
+			}
+
+			// Skip non-minified VIPS files — they are ~10MB of inlined WASM
+			// with no debugging value over the minified versions.
+			if (
+				srcPath.includes( '/vips/' ) &&
+				/(?<!\.min)\.js$/.test( entry.name )
+			) {
+				continue;
+			}
+
 			// Skip PHP files if excludePHP is true
 			if ( options.excludePHP && /\.php$/.test( entry.name ) ) {
 				continue;