[PWGCF] FemtoUniverse -- FemtoUniverse.h O2 linter fixes #6291
Workflow file for this run
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--- | |
name: PR self-approval | |
'on': | |
# We need pull_request_target so we can use ${{ secrets.* }}. | |
pull_request_target: | |
types: | |
- auto_merge_enabled | |
permissions: | |
contents: read | |
pull-requests: write | |
jobs: | |
approve: | |
runs-on: ubuntu-22.04 | |
# Only run if the PR author enabled auto-merge, not someone else. | |
# Also run if a new approval was created, as this affects whether we can | |
# auto-approve. There is a risk of infinite loops here, though -- when we | |
# submit our review, that'll trigger this workflow again, so only run if | |
# someone other than us (i.e. alibuild) reviewed. | |
if: >- | |
(github.event.action == 'auto_merge_enabled' && | |
github.event.sender.login == github.event.pull_request.user.login) | |
steps: | |
- name: Install dependencies | |
run: pip install codeowners PyGithub | |
# Approve the PR, if the author is only editing files owned by themselves. | |
- name: Auto-approve PR if permitted | |
shell: python | |
env: | |
submitter: ${{ github.event.pull_request.user.login }} | |
pr: ${{ github.event.pull_request.number }} | |
repo: ${{ github.event.repository.full_name }} | |
github_token: ${{ secrets.ALIBUILD_GITHUB_TOKEN }} | |
run: | | |
import os | |
import sys | |
from functools import lru_cache | |
from codeowners import CodeOwners | |
from github import Github, UnknownObjectException | |
# Cache results of this function so we don't have to look up team | |
# membership multiple times. | |
@lru_cache(maxsize=None) | |
def matches_owner(owner): | |
'''Return whether the PR's submitter matches the given owner. | |
owner is a (type, name) tuple, as returned by the CodeOwners.of | |
function. EMAIL owners cannot be handled currently, and will raise | |
a ValueError. | |
''' | |
owner_type, owner_name = owner | |
if owner_type == 'USERNAME': | |
return owner_name.lstrip('@') == os.environ['submitter'] | |
elif owner_type == 'TEAM': | |
org, _, team_name = owner_name.lstrip('@').partition('/') | |
try: | |
gh.get_organization(org) \ | |
.get_team_by_slug(team_name) \ | |
.get_team_membership(os.environ['submitter']) | |
except UnknownObjectException: | |
return False # submitter is not a member of this team | |
return True | |
elif owner_type == 'EMAIL': | |
# We can't resolve email addresses to GitHub usernames using | |
# GitHub's API. | |
raise ValueError("can't handle email addresses in CODEOWNERS") | |
else: | |
raise ValueError(f'unknown owner type {owner_type}') | |
gh = Github(os.environ['github_token']) | |
repo = gh.get_repo(os.environ['repo']) | |
pr = repo.get_pull(int(os.environ['pr'])) | |
owners = CodeOwners(repo.get_contents('CODEOWNERS') | |
.decoded_content.decode('utf-8')) | |
approvals_from = {review.user.login for review in pr.get_reviews() | |
if review.state == 'APPROVED'} | |
# At least one username per CODEOWNERS line must match the submitter | |
# (taking teams into account), and all lines must have a matching | |
# username. If the PR author is not the codeowner for a file, then if | |
# a codeowner of that file approved this PR, we'll still auto-approve. | |
auto_approve = True | |
for filename in (f.filename for f in pr.get_files()): | |
file_owners, line, *_ = owners.matching_line(filename) | |
file_owners_names = {name.lstrip('@') for _, name in file_owners} | |
if approvals_from & file_owners_names: | |
print(f'{filename}: OK: you have approval from the code' | |
' owners of this file, specifically:', | |
', '.join(approvals_from & file_owners_names), | |
f' (CODEOWNERS line {line})', file=sys.stderr) | |
elif any(map(matches_owner, file_owners)): | |
print(f'{filename}: OK: you are a code owner of this file' | |
f' (CODEOWNERS line {line})', file=sys.stderr) | |
else: | |
print('::warning::Not auto-approving as none of', | |
', '.join(file_owners_names), | |
f'have approved this PR as owners of {filename}' | |
f' (CODEOWNERS line {line})', file=sys.stderr) | |
# Don't break out of the loop, so that we print every | |
# non-matching CODEOWNERS rule for information. | |
auto_approve = False | |
if auto_approve: | |
print('Approving PR', file=sys.stderr) | |
pr.create_review(event='APPROVE', body=( | |
f'Auto-approving on behalf of @{os.environ["submitter"]}.' | |
)) | |
else: | |
print('::warning::Not approving PR. You can see whose approval' | |
' you need in the messages above. This check will run again' | |
" when the PR's author disables and reenables auto-merge.", | |
file=sys.stderr) |