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ci(automerge): decide from the PR's live labels and draft state #45

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github-actions merged 1 commit into from
Oct 21, 2026
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ci(automerge): decide from the PR's live labels and draft state #45

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17 changes: 13 additions & 4 deletions .github/workflows/automerge.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -22,16 +22,25 @@ jobs:
env:
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
PR_URL: ${{ github.event.pull_request.html_url }}
PR_LABELS: ${{ join(github.event.pull_request.labels.*.name, ' ') }}
PR_DRAFT: ${{ github.event.pull_request.draft }}
run: |
set -eu
case " ${PR_LABELS} " in *" hold "*)
# Decide from the PR's labels and draft state as they are now, not
# from the event payload, which is a snapshot: `gh pr create --label`
# fires `opened` without the label, and a late `opened` run would
# arm a held PR (#439). If the read fails, exit non-zero without
# touching auto-merge, so a failed read never arms. The same holds
# for a reply that is not a boolean isDraft and named labels.
pr=$(gh pr view "${PR_URL}" --json labels,isDraft)
jq -e '(.isDraft | type == "boolean") and (.labels | type == "array")
and all(.labels[]; (.name | type) == "string")' <<<"${pr}" >/dev/null
labels=$(jq -r '[.labels[].name] | join(" ")' <<<"${pr}")
draft=$(jq -r '.isDraft' <<<"${pr}")
case " ${labels} " in *" hold "*)
gh pr merge --disable-auto "${PR_URL}" || true
echo "hold label present — auto-merge disarmed"
exit 0 ;;
esac
if [ "${PR_DRAFT}" = "true" ]; then
if [ "${draft}" = "true" ]; then
echo "draft PR — skipping"
exit 0
fi
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