From 34b86edc349540439277b3f9cd69fd271980c4de Mon Sep 17 00:00:00 2001
From: Roeland Jago Douma <roeland@famdouma.nl>
Date: Wed, 7 Mar 2018 12:55:05 +0100
Subject: [PATCH] Check if the cached js file exists

Fixes #8705

If the file does not exist (for whatever reason). It is never cached. No
matter what the depscache etc tell you.

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>
---
 lib/private/Template/JSCombiner.php | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/lib/private/Template/JSCombiner.php b/lib/private/Template/JSCombiner.php
index c5adcee685..bc548c22fd 100644
--- a/lib/private/Template/JSCombiner.php
+++ b/lib/private/Template/JSCombiner.php
@@ -104,13 +104,20 @@ class JSCombiner {
 	 * @return bool
 	 */
 	protected function isCached($fileName, ISimpleFolder $folder) {
-		$fileName = str_replace('.json', '.js', $fileName) . '.deps';
+		$fileName = str_replace('.json', '.js', $fileName);
+
+		if (!$folder->fileExists($fileName)) {
+			return false;
+		}
+
+		$fileName = $fileName . '.deps';
 		try {
 			$deps = $this->depsCache->get($folder->getName() . '-' . $fileName);
 			if ($deps === null || $deps === '') {
 				$depFile = $folder->getFile($fileName);
 				$deps = $depFile->getContent();
 			}
+
 			// check again
 			if ($deps === null || $deps === '') {
 				$this->logger->info('JSCombiner: deps file empty: ' . $fileName);