feat(release): add issue notification script for retesting on new releases

Port 1.5

scripts/notify-issues.sh

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+# Comment on open issues referenced by commits shipped in a release,
+# asking reporters to retest.
+#
+# Usage: notify-issues.sh <prev-tag> <tag> [--dry-run]
+#
+# Scans commit messages in <prev-tag>..<tag> for "related/fixes/closes/
+# resolves/ref #N", keeps refs that are open issues (PRs and closed issues
+# are skipped), and posts one comment per issue linking the release.
+# Re-runs are safe: issues already carrying a comment that mentions the
+# tag are skipped. Requires gh auth (GH_TOKEN).
+set -euo pipefail
+
+PREV="${1:?usage: notify-issues.sh <prev-tag> <tag> [--dry-run]}"
+TAG="${2:?usage: notify-issues.sh <prev-tag> <tag> [--dry-run]}"
+DRY=0
+[ "${3:-}" = "--dry-run" ] && DRY=1
+
+REPO="${GITHUB_REPOSITORY:-$(gh repo view --json nameWithOwner --jq .nameWithOwner)}"
+RELEASE_URL="https://github.com/${REPO}/releases/tag/${TAG}"
+
+# Allow "related #N", "related: #N", "fixes #N", "Closes #N", etc.
+refs=$(git log --no-merges --format=%B "${PREV}..${TAG}" |
+  { grep -oiE '(related([ -]to)?|ref(erence[sd]?)?|fix(es|ed)?|close[sd]?|resolve[sd]?|see)[-: ]*#[0-9]+' || true; } |
+  grep -oE '[0-9]+' | sort -un)
+
+[ -n "$refs" ] || { echo "no issue references found in ${PREV}..${TAG}"; exit 0; }
+
+for n in $refs; do
+  info=$(gh api "repos/${REPO}/issues/${n}" \
+    --jq '{state: .state, pr: (.pull_request != null), title: .title}' 2>/dev/null) || {
+    echo "skip #${n}: not found"; continue; }
+  [ "$(jq -r .pr <<<"$info")" = "false" ] || { echo "skip #${n}: is a PR"; continue; }
+  [ "$(jq -r .state <<<"$info")" = "open" ] || { echo "skip #${n}: closed"; continue; }
+
+  # don't double-post if a comment for this tag already exists
+  if gh api "repos/${REPO}/issues/${n}/comments" --paginate \
+      --jq ".[].body" 2>/dev/null | grep -q "$TAG"; then
+    echo "skip #${n}: already notified for ${TAG}"
+    continue
+  fi
+
+  title=$(jq -r .title <<<"$info")
+  if [ "$DRY" = 1 ]; then
+    echo "DRY-RUN: would comment on #${n} — ${title}"
+    continue
+  fi
+  gh issue comment "$n" --repo "$REPO" --body "$(cat <<EOF
+:package: A fix referencing this issue shipped in [**${TAG}**](${RELEASE_URL}).
+
+Please retest on the new release when you get a chance — if it's resolved, this issue can be closed. Thanks!
+EOF
+)"
+  echo "notified #${n} — ${title}"
+done