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ci: add PR commit message sanity check workflow #10285

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41 changes: 41 additions & 0 deletions .github/workflows/pr-commit-check.yml
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Original file line number Diff line number Diff line change
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name: PR commit message checks

on:
pull_request:
branches: [ '*' ]

concurrency:
group: ${{ github.workflow }}-${{ github.ref }}
cancel-in-progress: true
# END OF COMMON SECTION

jobs:
commit-messages:
if: github.repository_owner == 'wolfssl'
runs-on: ubuntu-24.04
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0

- name: Reject AI attribution trailers
env:
BASE_SHA: ${{ github.event.pull_request.base.sha }}
HEAD_SHA: ${{ github.event.pull_request.head.sha }}
run: |
set -euo pipefail
fail=0
while IFS= read -r sha; do
[ -z "$sha" ] && continue
if git log -1 --format=%B "$sha" | \
grep -iE '^(Co-authored-by|Signed-off-by):.*<?noreply@anthropic\.com>?' >/dev/null; then
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Copilot AI Apr 23, 2026

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The grep pattern can produce false positives because it matches any address containing the substring noreply@anthropic.com (e.g., noreply@anthropic.com.example) and it doesn’t enforce an end-of-email boundary. Consider tightening the regex to require either end-of-line or a closing >/whitespace after the domain, and optionally allow leading whitespace before the trailer key so indented trailers are also caught.

Suggested change
grep -iE '^(Co-authored-by|Signed-off-by):.*<?noreply@anthropic\.com>?' >/dev/null; then
grep -iE '^[[:space:]]*(Co-authored-by|Signed-off-by):.*<?noreply@anthropic\.com($|[[:space:]>])' >/dev/null; then

Copilot uses AI. Check for mistakes.
echo "::error::Commit $sha contains a Co-authored-by or Signed-off-by trailer for noreply@anthropic.com"
git log -1 --format=' %h %s' "$sha"
fail=1
fi
done < <(git rev-list "$BASE_SHA".."$HEAD_SHA")
if [ "$fail" -ne 0 ]; then
echo "One or more commits contain disallowed AI attribution trailers; please amend them out."
exit 1
fi
echo "No disallowed AI attribution trailers found."
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