Update garbage collection to remove static files as well

Author: dilirity

projects/plugins/boost/app/lib/minify/class-cleanup-stored-paths.php

@@ -93,6 +93,7 @@ public function cleanup_stored_paths_batch() {
 			}
 
 			if ( $value['expire'] <= $expire_timestamp ) {
+				$this->delete_static_file_by_hash( str_replace( 'jb_transient_concat_paths_', '', $option['option_name'] ) );
 				delete_option( $option['option_name'] );
 			}
 
@@ -104,6 +105,27 @@ public function cleanup_stored_paths_batch() {
 		return true;
 	}
 
+	/**
+	 * Deletes the static files by hash.
+	 *
+	 * @param string $hash The hash of the file.
+	 * @return void
+	 */
+	private function delete_static_file_by_hash( $hash ) {
+		// Since we don't have a way to know if this file is JS or CSS,
+		// we delete both.
+
+		$js_file_path = jetpack_boost_get_minify_file_path( $hash . '.min.js' );
+		if ( file_exists( $js_file_path ) ) {
+			wp_delete_file( $js_file_path );
+		} else {
+			$css_file_path = jetpack_boost_get_minify_file_path( $hash . '.min.css' );
+			if ( file_exists( $css_file_path ) ) {
+				wp_delete_file( $css_file_path );
+			}
+		}
+	}
+
 	/**
 	 * Gets the stored paths to process,
 	 * and skips the ones that were checked in the previous run.

projects/plugins/boost/app/lib/minify/functions-helpers.php

@@ -374,6 +374,10 @@ function jetpack_boost_get_minify_url( $file_name = '' ) {
 	return content_url( '/boost-cache/static/' . $file_name );
 }
 
+function jetpack_boost_get_minify_file_path( $file_name = '' ) {
+	return WP_CONTENT_DIR . '/boost-cache/static/' . $file_name;
+}
+
 /**
  * Detects requests within the `/_jb_static/` directory, and serves minified content.
  *