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fix: clean up stale preview pull requests #612

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Merged
FreddyFunk merged 1 commit into from
Aug 20, 2026
Merged

fix: clean up stale preview pull requests #612

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26 changes: 21 additions & 5 deletions .github/workflows/regenerate-previews.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -156,16 +156,32 @@ jobs:
git config user.name "github-actions[bot]"
git config user.email "github-actions[bot]@users.noreply.github.com"

branch=ci/regenerate-previews

# Scope the commit to preview/ (PNGs + generated galleries). Metadata
# under resources/ is owned by the "Regenerate Derived Files" job.
git add preview

if git diff --cached --quiet; then
echo "Previews already up to date; no pull request needed."
pr_number="$(gh pr list --head "$branch" --state open --json number --jq '.[0].number // empty')"
if [ -n "$pr_number" ]; then
gh pr close "$pr_number" --comment \
"Closing automatically because the latest regeneration from main produced no screenshot changes. This generated pull request is obsolete."
echo "Closed stale pull request #$pr_number."
fi

remote_branch="$(git ls-remote --heads origin "refs/heads/$branch")"
if [ -n "$remote_branch" ]; then
git push origin --delete "$branch"
echo "Deleted stale remote branch $branch."
fi

if [ -z "$pr_number" ] && [ -z "$remote_branch" ]; then
echo "Previews already up to date; no pull request needed."
fi
exit 0
fi

branch=ci/regenerate-previews
git switch -C "$branch"
git commit -m "chore: regenerate preview screenshots"

Expand All @@ -174,9 +190,9 @@ jobs:
git lfs push origin "$branch"
git push --force origin "$branch"

state="$(gh pr view "$branch" --json state --jq .state 2>/dev/null || echo NONE)"
if [ "$state" = "OPEN" ]; then
echo "Pull request already open for $branch; its branch was updated."
pr_number="$(gh pr list --head "$branch" --state open --json number --jq '.[0].number // empty')"
if [ -n "$pr_number" ]; then
echo "Pull request #$pr_number already open for $branch; its branch was updated."
exit 0
fi

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