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fix: verify promotion ancestry without checkout credentials #4

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Merged
monkseekee-max merged 1 commit into from
Jul 16, 2026
Merged

fix: verify promotion ancestry without checkout credentials #4

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13 changes: 11 additions & 2 deletions .github/workflows/reusable-hmg-public-promotion.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -134,6 +134,7 @@ jobs:
id: source
shell: bash
env:
GH_TOKEN: ${{ github.token }}
RELEASE_TAG: ${{ inputs.release_tag }}
EXPECTED_SOURCE_SHA: ${{ steps.source-run.outputs.sha }}
run: |
Expand All @@ -143,8 +144,16 @@ jobs:
echo "::error::Checkout SHA does not match the successful artifact build"
exit 2
fi
git -C source fetch --no-tags origin main:refs/remotes/origin/main
if ! git -C source merge-base --is-ancestor "${source_sha}" refs/remotes/origin/main; then
ancestry_json="${RUNNER_TEMP}/hmg-source-main-ancestry.json"
gh api \
-H 'Accept: application/vnd.github+json' \
-H 'X-GitHub-Api-Version: 2026-03-10' \
"repos/HMG-AI/HMG/compare/${source_sha}...main" \
> "${ancestry_json}"
if ! jq -e --arg source_sha "${source_sha}" '
(.status == "ahead" or .status == "identical") and
.merge_base_commit.sha == $source_sha
' "${ancestry_json}" >/dev/null; then
echo "::error::${source_sha} is not reachable from HMG-AI/HMG main"
exit 2
fi
Expand Down