[PWGJE] Removing dependence on aod::Track #5261
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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-latest | |
| # 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) |