d726682be4
Hardcoding origin/main broke in any checkout whose remote isn't named origin (e.g. an agent worktree, whose remote is renamed to forge). Try BASE_REF if set, else every configured remote in a stable order (origin first to match CI, then the rest alphabetically), fetching each remote's copy of the base branch if not already present. If nothing resolves, exit 1 with a clear message rather than falling back to any guessed range - an unresolvable base must never read as a clean pass. Refs #4449
105 lines
4.1 KiB
Shell
Executable file
105 lines
4.1 KiB
Shell
Executable file
#!/bin/sh
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# Flags Co-Authored-By trailers with Claude/Anthropic attribution in PR commits.
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# The hive convention in /knowledge/hive-rules.md forbids these trailers.
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#
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# Pattern is anchored to an actual git trailer line — `^[[:space:]]*co-authored-by:`
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# — not any mention of the phrase, then requires the value name `claude`,
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# `anthropic`, or `noreply@anthropic.com`. Matching is case-insensitive and
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# per-line (git trailers are one `Key: value` per line) to cover variants like
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# `Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>` while letting a
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# commit subject/body that merely *discusses* the trailer (e.g. this script's
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# own "add CI lint for Co-Authored-By/Claude/Anthropic trailers") pass.
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#
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# Scope is the PR's commits (BASE..HEAD), not entire history — old commits
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# must not fail the build.
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set -eu
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trailer_re='^[[:space:]]*co-authored-by:.*(claude|anthropic|noreply@anthropic\.com)'
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branch="${GITHUB_BASE_REF:-main}"
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# Remote name varies by checkout — CI's actions/checkout@v3 names it
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# `origin`, but an agent worktree renames its remote to `forge` (see the
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# hive's subagent briefs). Hardcoding `origin/` here made the script
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# unresolvable, and unresolvable, in the old code, silently read as clean
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# (fetch-or-`true`, then a fallback to `HEAD~10`) — that fail-open was the
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# actual bug. So: try `BASE_REF` if the caller set one, then every
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# configured remote in a stable order (an `origin` remote first, to match
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# CI, then the rest alphabetically), fetching a remote's copy of `branch`
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# if it isn't already present locally. If none of that resolves a base,
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# exit 1 with a clear message — never guess a commit range.
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base=""
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if [ -n "${BASE_REF:-}" ]; then
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if git rev-parse --verify "$BASE_REF" >/dev/null 2>&1; then
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base="$BASE_REF"
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else
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echo "check-attribution-trailers: BASE_REF=$BASE_REF does not resolve" >&2
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exit 1
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fi
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else
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remotes="$(git remote)"
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ordered_remotes=""
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case " $remotes " in
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*" origin "*) ordered_remotes="origin" ;;
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esac
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for r in $(printf '%s\n' "$remotes" | sort); do
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[ "$r" = "origin" ] && continue
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ordered_remotes="${ordered_remotes:+$ordered_remotes }$r"
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done
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for remote in $ordered_remotes; do
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candidate="refs/remotes/${remote}/${branch}"
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if ! git rev-parse --verify "$candidate" >/dev/null 2>&1; then
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# actions/checkout@v3 fetches the PR head but may not fetch the base branch
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git fetch "$remote" "$branch" 2>/dev/null || true
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fi
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if git rev-parse --verify "$candidate" >/dev/null 2>&1; then
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base="$candidate"
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break
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fi
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done
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if [ -z "$base" ]; then
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echo "check-attribution-trailers: base ref unresolvable — no configured remote has a '${branch}' ref (tried: ${remotes:-none}), refusing to guess a commit range" >&2
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exit 1
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fi
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fi
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# `|| true` here used to erase git log's own exit status, so a genuine
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# failure (bad range, corrupt ref) and a merely-empty range read the same:
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# both fell through to `-z "$commits"` and exited 0 "clean". Capture the
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# status via the `if` guard instead — that's exempt from `set -e` on
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# purpose — so a failure exits loudly and an empty-but-successful range
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# still means "no commits, nothing to check".
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if ! commits="$(git log --reverse --format='%H' "${base}..HEAD")"; then
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echo "check-attribution-trailers: git log failed for range ${base}..HEAD — see error above" >&2
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exit 1
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fi
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if [ -z "$commits" ]; then
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exit 0
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fi
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hits=""
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for sha in $commits; do
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msg="$(git log -1 --format='%B' "$sha")"
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if printf '%s\n' "$msg" | grep -qiE "$trailer_re"; then
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subject="$(git log -1 --format='%s' "$sha")"
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hits="${hits}${sha}|${subject}
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"
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fi
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done
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if [ -n "$hits" ]; then
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printf '%s' "$hits" | while IFS='|' read -r sha subject; do
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[ -z "$sha" ] && continue
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short_sha="$(printf '%s' "$sha" | cut -c1-8)"
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printf '::error title=Attribution trailer found in %s::%s — commit carries a Co-Authored-By trailer with Claude/Anthropic attribution, forbidden by /knowledge/hive-rules.md\n' \
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"$short_sha" "$subject"
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done
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count="$(printf '%s' "$hits" | grep -c '|' || true)"
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printf 'check-attribution-trailers: %s commit(s) with prohibited trailers found\n' "$count" >&2
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exit 1
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fi
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exit 0
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