Merge pull request #1073 from cloudinary/fix/cron-run-txt-warning

Fix cron-run.txt PHP warning

Author: aatanasov-cloudinary

php/class-cron.php

@@ -391,16 +391,20 @@ public function run_queue( WP_REST_Request $request ) {
 		$this->init_time = (int) $request->get_param( 'time' );
 		$queue           = $this->locker->get_lock_file( $this->init_time );
 		register_shutdown_function( array( $this, 'cleanup_failed_cron' ) );
-		foreach ( $queue as $name ) {
-			if ( ! isset( $this->processes[ $name ] ) ) {
-				continue;
-			}
-			$process = $this->processes[ $name ];
-			$data    = $process['callback']( $name );
-			// @todo: Log data result.
 
-			$this->unlock_schedule_process( $name );
+		if ( ! empty( $queue ) ) {
+			foreach ( $queue as $name ) {
+				if ( ! isset( $this->processes[ $name ] ) ) {
+					continue;
+				}
+				$process = $this->processes[ $name ];
+				$data    = $process['callback']( $name );
+				// @todo: Log data result.
+
+				$this->unlock_schedule_process( $name );
+			}
 		}
+
 		$this->locker->delete_lock_file( $this->init_time );
 	}
 

php/cron/class-lock-file.php

@@ -33,7 +33,13 @@ class Lock_File {
 	 */
 	public function get_lock_file( $file = null ) {
 		$lock_file = $this->get_lock_file_name( $file );
-		$data      = file_get_contents( $lock_file ); // phpcs:ignore WordPressVIPMinimum.Performance.FetchingRemoteData.FileGetContentsUnknown
+
+		if ( ! file_exists( $lock_file ) ) {
+			return '';
+		}
+
+		$data = file_get_contents( $lock_file ); // phpcs:ignore WordPressVIPMinimum.Performance.FetchingRemoteData.FileGetContentsUnknown
+
 		if ( false !== strpos( $data, '[' ) ) {
 			$data = json_decode( $data, true );
 		}
@@ -106,5 +112,4 @@ public function delete_lock_file( $file = null ) {
 		$file = $this->get_lock_file_name( $file );
 		wp_delete_file( $file );
 	}
-
 }