Fix local changes detection

Do not use diff as this only detects modified files, but not added ones.
Run status --porcelain instead and check if there is any output.

src/bin/git_sync.sh

@@ -38,10 +38,9 @@ changes=$("${GIT_COMMAND[@]}" 2>&1)
 if [ -n "${changes}" ]; then
 	echo "[$(date +"%Y-%m-%d %H:%M:%S")] [${unique_id}] [START] git merge ${GIT_REPOSITORY_FOLDER} ${REMOTE_NAME}/${BRANCH}" &>> "$LOG_FILE";
 	# check if there are local changes, make a backup branch and reset them
-	local_changes=$("${GIT_COMMAND_BASE[@]}" "-C" "${GIT_REPOSITORY_FOLDER}" "diff" "--quiet");
-	cached_changed=$("${GIT_COMMAND_BASE[@]}" "-C" "${GIT_REPOSITORY_FOLDER}" "diff" "--quiet" "--cached");
-	if $local_changes || $cached_changed; then
-		echo "[$(date +"%Y-%m-%d %H:%M:%S")] [${unique_id}] [!] Local or cached changes detected, creating backup branch and resetting changes" &>> "$LOG_FILE";
+	changes=$("${GIT_COMMAND_BASE[@]}" "-C" "${GIT_REPOSITORY_FOLDER}" "status" "--porcelain");
+	if [ -n "$changes" ]; then
+		echo "[$(date +"%Y-%m-%d %H:%M:%S")] [${unique_id}] [!] Changes detected, creating backup branch and resetting changes" &>> "$LOG_FILE";
 		GIT_COMMAND=("${GIT_COMMAND_BASE[@]}" "-C" "${GIT_REPOSITORY_FOLDER}" "branch" "backup-$(date +%Y%m%d-%H%M%S)")
 		"${GIT_COMMAND[@]}";
 		# Reset everything