1 files changed, 17 insertions, 0 deletions
diff --git a/aux/workflow/sign-tarballs.sh b/aux/workflow/sign-tarballs.sh
new file mode 100755
index 0000000..b88ff33
--- /dev/null
+++ b/aux/workflow/sign-tarballs.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+set -eu
+
+PROJECT="$1"
+
+SIGNATURES="$(git notes --ref=refs/notes/signatures/tar.gz list | cut -d\  -f2)"
+for tag in $(git tag); do
+  COMMIT="$(git rev-list -n1 "$tag")"
+  if ! echo "$SIGNATURES" | grep -qF "$COMMIT"; then
+    echo "Adding missing signature to $tag" >&2
+    git notes --ref=refs/notes/signatures/tar.gz add -f -C "$(
+      git archive --format tar.gz --prefix "$PROJECT-${tag#v}/" "$tag" |
+      gpg --output - --armor --detach-sign |
+      git hash-object -w --stdin
+    )" "$tag"
+  fi
+done