fix: verify promotion ancestry without checkout credentials - #4
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monkseekee-max
enabled auto-merge (rebase)
July 16, 2026 13:51
xionghaoh
approved these changes
Jul 16, 2026
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The public promotion workflow intentionally checks out source without persisted credentials. Its subsequent
git fetchtherefore fails on private HMG.Use the read-only workflow token through GitHub’s compare API to prove the built SHA is an ancestor of protected
main, while preserving credential-free checkout.Validation:
actionlint .github/workflows/reusable-hmg-public-promotion.ymlbash governance/workflow-policy/test.sh(41/41)