fix: use PR head branch for rules-ref instead of merge ref#168
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scottschreckengaust merged 1 commit intomainfrom Apr 2, 2026
Merged
fix: use PR head branch for rules-ref instead of merge ref#168scottschreckengaust merged 1 commit intomainfrom
scottschreckengaust merged 1 commit intomainfrom
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For pull_request events, CodeBuild runs in detached HEAD so git symbolic-ref fails. The fallback was GH_REF_NAME which resolves to '155/merge' — a virtual GitHub ref that cannot be cloned as a branch. Pass github.head_ref into the buildspec as GH_HEAD_REF and prefer it in the fallback chain so the evaluator clones the actual PR source branch.
Kalindi-Dev
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Apr 2, 2026
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Summary
Fix the CodeBuild evaluation pipeline failing on PR builds because
--rules-refreceives155/merge(a virtual GitHub merge ref) instead of the actual PR source branch name. The evaluator'ssetup_rules()tries togit clone --branch 155/mergewhich fails because that ref doesn't exist as a cloneable branch.Changes
github.head_refinto the CodeBuild buildspec asGH_HEAD_REFenvironment variableCURRENT_BRANCHfallback chain from${GH_REF_NAME:-}to${GH_HEAD_REF:-${GH_REF_NAME:-}}so PR builds use the actual source branch namefix/some-feature155/merge(fails to clone)fix/some-featuremainmain(unchanged)v0.1.7v0.1.7(unchanged)User experience
Before: Every PR-triggered CodeBuild run fails at Stage 1 with
RuntimeError: Failed to clone AIDLC rules repo: fatal: Remote branch 155/merge not found in upstream origin.After: PR builds correctly resolve the source branch and clone the rules at the PR's head ref.
Checklist
Test Plan
CURRENT_BRANCHresolves to the PR head branch (notN/merge)CURRENT_BRANCHcorrectlyCURRENT_BRANCHcorrectlyAcknowledgment
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