aristath
diff --git a/‎.gitattributes
+5-1 b/‎.gitattributes
+5-1
diff --git a/‎composer.json
+1 b/‎composer.json
+1
@@ -5,5 +5,9 @@
 composer.json export-ignore
 phpcs.xml.dist export-ignore
 phpunit.xml.dist export-ignore
-tests/*.php export-ignore
+/grammar-tools export-ignore
+/tests export-ignore
+/wip export-ignore
+/wp-includes/mysql export-ignore
+/wp-includes/parser export-ignore
 wp-includes/sqlite/class-wp-sqlite-crosscheck-db.php export-ignore
@@ -11,6 +11,7 @@
 		"php": ">=7.0"
 	},
 	"require-dev": {
+		"ext-mbstring": "*",
 		"dealerdirect/phpcodesniffer-composer-installer": "^0.7.0",
 		"squizlabs/php_codesniffer": "^3.7",
 		"wp-coding-standards/wpcs": "^3.1",