Automerge #8578
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name: Automerge | |
on: | |
workflow_run: | |
workflows: | |
- Check | |
types: | |
- completed | |
jobs: | |
test: | |
name: Renovate | |
if: github.event.workflow_run.conclusion == 'success' | |
permissions: | |
issues: write | |
pull-requests: write | |
contents: write | |
actions: write | |
runs-on: ubuntu-24.04 | |
steps: | |
- name: Install uniget | |
uses: uniget-org/uniget-action@v1 | |
with: | |
prefix: helper | |
tools: gojq | |
- name: Test | |
env: | |
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
REF: ${{ github.event.workflow_run.head_branch }} | |
run: | | |
set -o errexit -o pipefail | |
echo "Running on branch: ${REF}" | |
PR_JSON="$( | |
curl --silent --show-error --fail --header "Authorization: token ${GITHUB_TOKEN}" \ | |
--url "https://api.github.com/repos/${GITHUB_REPOSITORY}/pulls?state=open&head=uniget-org:${REF}" \ | |
| jq '.[]' | |
)" | |
PR="$( jq --raw-output '.number' <<<"${PR_JSON}" )" | |
if test -z "${PR}"; then | |
echo "ERROR: Failed to retrieve PR number from event payload" | |
exit 1 | |
fi | |
echo "PR ${PR} uses branch ${REF}" | |
if ! jq --raw-output '.labels[].name' <<<"${PR_JSON}" | grep -q "^type/renovate$"; then | |
echo "PR ${PR} does not have label type/renovate. Canceling" | |
curl --silent --show-error --fail --header "Authorization: token ${GITHUB_TOKEN}" \ | |
--request POST \ | |
--url "https://api.github.com/repos/${GITHUB_REPOSITORY}/actions/runs/${GITHUB_RUN_ID}/cancel" | |
fi | |
RUN_URL="$( | |
curl --silent --show-error --location --fail \ | |
--url "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/actions/runs/${GITHUB_RUN_ID}" \ | |
| jq --raw-output '.html_url' | |
)" | |
echo "Extracted HTML URL for this run: ${RUN_URL}." | |
curl --silent --show-error --fail \ | |
--request POST \ | |
--header "Authorization: Bearer ${GITHUB_TOKEN}" \ | |
--url "https://api.github.com/repos/${GITHUB_REPOSITORY}/issues/${PR}/comments" \ | |
--data '{"body": "Attempting automerge. See '"${RUN_URL}"'."}' | |
MERGEABLE_STATE="$( jq --raw-output '.mergeable_state' <<<"${PR_JSON}" )" | |
while test "${MERGEABLE_STATE}" == "unknown" || test "${MERGEABLE_STATE}" == "null"; do | |
echo "Got mergeable state: ${MERGEABLE_STATE}" | |
PR_JSON="$( | |
curl --silent --show-error --fail \ | |
--header "Authorization: token ${GITHUB_TOKEN}" \ | |
--url "https://api.github.com/repos/${GITHUB_REPOSITORY}/pulls/${PR}" \ | |
| jq --compact-output '.' | |
)" | |
MERGEABLE_STATE="$( jq --raw-output '.mergeable_state' <<<"${PR_JSON}" )" | |
done | |
case "${MERGEABLE_STATE}" in | |
blocked) | |
echo "PR ${PR} is blocked and can not be merged" | |
curl --silent --show-error --fail \ | |
--request POST \ | |
--header "Authorization: Bearer ${GITHUB_TOKEN}" \ | |
--url "https://api.github.com/repos/${GITHUB_REPOSITORY}/issues/${PR}/comments" \ | |
--data '{"body": "PR is blocked and can not be merged. See '"${RUN_URL}"'."}' | |
echo "Aborting workflow" | |
exit 1 | |
;; | |
clean) | |
echo "PR ${PR} is clean and can be merged" | |
curl --silent --show-error --fail \ | |
--request POST \ | |
--header "Authorization: Bearer ${GITHUB_TOKEN}" \ | |
--url "https://api.github.com/repos/${GITHUB_REPOSITORY}/issues/${PR}/comments" \ | |
--data '{"body": "PR is clean and can be merged. See '"${RUN_URL}"'."}' | |
;; | |
*) | |
echo "ERROR: Unknown mergeable_state ${MERGEABLE_STATE} for PR ${PR}" | |
curl --silent --show-error --fail \ | |
--request POST \ | |
--header "Authorization: Bearer ${GITHUB_TOKEN}" \ | |
--url "https://api.github.com/repos/${GITHUB_REPOSITORY}/issues/${PR}/comments" \ | |
--data '{"body": "PR has unknown mergeable_state ('"${MERGEABLE_STATE}"') and can not be merged. See '"${RUN_URL}"'."}' | |
echo "Aborting workflow" | |
exit 1 | |
;; | |
esac | |
echo "PR ${PR} is ready for auto-merge" | |
echo "Merging PR ${PR}..." | |
http_code="405" | |
merged=false | |
max_attempts=3 | |
attempt=1 | |
while true; do | |
echo " Attempt ${attempt}" | |
http_code="$( | |
curl --silent --request PUT --header "Authorization: token ${GITHUB_TOKEN}" \ | |
--url "https://api.github.com/repos/${GITHUB_REPOSITORY}/pulls/${PR}/merge" \ | |
--data '{"merge_method": "rebase"}' \ | |
--output merge.json \ | |
--write-out "${http_code}" | |
)" | |
if jq --exit-status 'select(.merged != null) | select(.merged == true)' merge.json >/dev/null; then | |
echo " Merged" | |
merged=true | |
break | |
fi | |
echo " Got HTTP code ${http_code}" | |
if test "${attempt}" -eq "${max_attempts}"; then | |
echo " Max attempt reached" | |
break | |
elif test "${http_code}" -eq 405; then | |
echo " Sleeping" | |
cat merge.json | |
sleep 5 | |
else | |
echo " Non-405 code" | |
break | |
fi | |
attempt=$(( attempt + 1 )) | |
done | |
if ! ${merged}; then | |
echo "ERROR: Unable to merge PR ${PR}" | |
exit 1 | |
fi | |
echo "PR ${PR} has been merged" | |
echo "Deleting branch ${REF}..." | |
if ! curl --silent --show-error --fail --request DELETE --header "Authorization: token ${GITHUB_TOKEN}" \ | |
--url "https://api.github.com/repos/${GITHUB_REPOSITORY}/git/refs/heads/${REF}"; then | |
echo "ERROR: Unable to delete branch ${REF} from PR ${PR}" | |
exit 1 | |
fi | |
echo "Branch ${REF} has been deleted" |