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GHA: complain if PR adds commits from people not yet listed in ./AUTHORS #238

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39 changes: 39 additions & 0 deletions .github/workflows/authors-file.yml
Original file line number Diff line number Diff line change
@@ -0,0 +1,39 @@
name: AUTHORS file

on:
pull_request: { }

jobs:
authors-file:
name: AUTHORS file
runs-on: ubuntu-latest

steps:
- name: Checkout HEAD
uses: actions/checkout@v3
with:
fetch-depth: 0

- name: Check whether ./AUTHORS is up-to-date
run: |
set -exo pipefail
sort -uo AUTHORS AUTHORS
git add AUTHORS
git log --format='format:%aN <%aE>' "$(
git merge-base HEAD^1 HEAD^2
)..HEAD^2" >> AUTHORS
sort -uo AUTHORS AUTHORS
git diff AUTHORS >> AUTHORS.diff

- name: Complain if ./AUTHORS isn't up-to-date
run: |
if [ -s AUTHORS.diff ]; then
cat <<'EOF' >&2
There are the following new authors. If the commit author data is correct,
either add them to the AUTHORS file or update .mailmap. See gitmailmap(5) or:
https://git-scm.com/docs/gitmailmap
Don't hesitate to ask us for help if necessary.
EOF
cat AUTHORS.diff
exit 1
fi
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