tg-update.sh: Abort on missing dependencies

diff --git a/tg-update.sh b/tg-update.sh
index ec14bf68049d1dcffcf8b68b3d5ec36226c847af..5bd9de55455a5b2b1397c35e9e9b9851ec544491 100644 (file)
--- a/tg-update.sh
+++ b/tg-update.sh
@@ -22,7 +22,9 @@ base_rev="$(git rev-parse --short --verify "refs/top-bases/$name" 2>/dev/null)"
 ## First, take care of our base
 
 depcheck="$(mktemp)"
+missing_deps=
 needs_update "$name" >"$depcheck"
+[ -z "$missing_deps" ] || die "some dependencies are missing: $missing_deps"
 if [ -s "$depcheck" ]; then
        # We need to switch to the base branch
        # ...but only if we aren't there yet (from failed previous merge)