Cleanly handle no work

diff --git a/hevc-pipeline.sh b/hevc-pipeline.sh
index 3574233..a6cc09a 100755 (executable)
--- a/hevc-pipeline.sh
+++ b/hevc-pipeline.sh
@@ -4,6 +4,11 @@ mapfile -t hevc_films < <(ssh mbp 'find /srv/deluge/Downloads/ \( -name '"'"'*.m
 # copy all streams from input 0 except subs and annotations
 # -map -0:s -map -0:t \
 
+if [ ${#hevc_films[@]} -eq 0 ]; then
+    >&2 echo "no files to process"
+    exit 1
+fi
+
 printf '%s\0' "${hevc_films[@]}" | xargs -0 -P 1 -I@ bash -c 'ssh mbp '"'"'cat "@"'"'"' |
        ffmpeg \
         -fflags +igndts \