**Backport:** https://codeberg.org/forgejo/forgejo/pulls/8773
Currently, the docs mention that a CODEOWNERS file can be located
in .forgejo for code owner PR review assignment, but this does not
work.
Add support for this location.
This fixes#8746.
## Checklist
The [contributor guide](https://forgejo.org/docs/next/contributor/) contains information that will be helpful to first time contributors. There also are a few [conditions for merging Pull Requests in Forgejo repositories](https://codeberg.org/forgejo/governance/src/branch/main/PullRequestsAgreement.md). You are also welcome to join the [Forgejo development chatroom](https://matrix.to/#/#forgejo-development:matrix.org).
### Tests
- I added test coverage for Go changes...
- [ ] in their respective `*_test.go` for unit tests.
- [x] in the `tests/integration` directory if it involves interactions with a live Forgejo server.
- I added test coverage for JavaScript changes...
- [ ] in `web_src/js/*.test.js` if it can be unit tested.
- [ ] in `tests/e2e/*.test.e2e.js` if it requires interactions with a live Forgejo server (see also the [developer guide for JavaScript testing](https://codeberg.org/forgejo/forgejo/src/branch/forgejo/tests/e2e/README.md#end-to-end-tests)).
### Documentation
- [ ] I created a pull request [to the documentation](https://codeberg.org/forgejo/docs) to explain to Forgejo users how to use this change.
- [x] I did not document these changes and I do not expect someone else to do it.
### Release notes
- [ ] I do not want this change to show in the release notes.
- [x] I want the title to show in the release notes with a link to this pull request.
- [ ] I want the content of the `release-notes/<pull request number>.md` to be be used for the release notes instead of the title.
<!--start release-notes-assistant-->
## Release notes
<!--URL:https://codeberg.org/forgejo/forgejo-->
- Bug fixes
- [PR](https://codeberg.org/forgejo/forgejo/pulls/8790): <!--number 8790 --><!--line 0 --><!--description Zml4OiBhZGQgLmZvcmdlam8vQ09ERU9XTkVSUyBzdXBwb3J0ICgjODc0Nik=-->fix: add .forgejo/CODEOWNERS support (#8746)<!--description-->
<!--end release-notes-assistant-->
Co-authored-by: John Moon <john.moon@vts-i.com>
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/8790
Co-authored-by: forgejo-backport-action <forgejo-backport-action@noreply.codeberg.org>
Co-committed-by: forgejo-backport-action <forgejo-backport-action@noreply.codeberg.org>
- Only send a review request based on the code owner file if the code
owner user has read permissions to the pull requests of that repository.
- This avoids leaking title of PRs from private repository when a
CODEOWNER file is present which contains users that do not have access
to the private repository.
- Found by @oliverpool.
- Integration test added.
- This allows `CreateDeclarativeRepo` to be used by other testing
packages such as E2EE testing.
- Removes unused function in `services/webhook/sourcehut/builds_test.go`.
- Disable the CODEOWNERS feature for forked repositories, as it would
otherwise inadvertently request reviewers when for example a pull
request is opened against a forked repository to propose changes to an
existant pull request in the original repository.
- Adds integration test.
- Resolves#2525
- The CODEOWNER feature relies on the changed files to determine which
reviewers should be added according to the `CODEOWNER` file.
- The current approach was to 'diff' between the base and head branch,
which seems logical but fail in practice when the pull request is out of
date with the base branch. Therefore it should instead diff between the
head branch and the merge base of the head and base branch, so only the
actual affected files by the pull requests are used, the same approach
is used by the diff of an unmerged pull request.
- Add integration testing (for the feature as well).
- Resolves#2458
