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fix(ci): let platform-bot co-author trailers pass the attribution guard #27

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Merged
acamarata merged 1 commit into from
Aug 15, 2026
Merged

fix(ci): let platform-bot co-author trailers pass the attribution guard #27

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10 changes: 9 additions & 1 deletion .github/scripts/no-attribution-check.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -138,7 +138,15 @@ scan_history_range() {
# New commits from 2026-03-30 onward must be clean.
GRANDFATHER_DATE="2026-03-30"

matches="$(git log --format='%H%n%s%n%b%n---END---' --after="$GRANDFATHER_DATE" "$range" | grep -nE -i "$COMMIT_MSG_REGEX" || true)"
# Platform bots (dependabot, github-actions) add a Co-authored-by trailer to
# squash merges automatically. That is standard GitHub behaviour, not AI
# authorship, and blocking it makes dependabot PRs impossible to squash-merge.
# Strip those trailers before applying the AI-attribution regex; genuine AI
# co-author trailers (claude/openai/copilot/...) are still caught.
BOT_COAUTHOR_REGEX='co-authored-by:[[:space:]]*(dependabot|github-actions|renovate)\[bot\]'
matches="$(git log --format='%H%n%s%n%b%n---END---' --after="$GRANDFATHER_DATE" "$range" \
| grep -viE "$BOT_COAUTHOR_REGEX" \
| grep -nE -i "$COMMIT_MSG_REGEX" || true)"
if [ -n "$matches" ]; then
printf '%s\n' "$matches"
cat >&2 <<'ERROR_TEXT'
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