jojo/routers
forgejo-backport-action a3870d7955 [v14.0/forgejo] fix: out of synchronization error after interrupting a PR merge by user-agent disconnect (#11850)
**Backport:** https://codeberg.org/forgejo/forgejo/pulls/11821

If the HTTP request to `/user/repo/pulls/N/merge` is cancelled by the user agent, don't stop work once we've passed validation and started to merge the PR.  Go will automatically cancel the context if the user-agent disconnects, but that can leave Forgejo in an inconsistent state -- the `git` command can be cancelled at an arbitrary location, the `branch` database table update may not be completed, timers may not be stopped, cross-references may not be populated, etc.

Added test `TestMergeHTTPRequestCancellation` stress-tests the fix by cancelling merge requests, and then verifying that the in-database repository state and in-repository database state are consistent.  I've verified that this test fails if the fix is removed -- the in-database commit and commit messages don't match the repository in all PRs.

This is a problem that likely affects other Forgejo endpoints.  For example, even the PR merge API would be impacted.  But this will be one of the most common real-world places for it to occur, so my thought is we'll see how well this fix works and what (if any) side-effects it has.  We can apply a similar pattern in other areas if they are identified as problems.

## Checklist

The [contributor guide](https://forgejo.org/docs/next/contributor/) contains information that will be helpful to first time contributors. All work and communication must conform to Forgejo's [AI Agreement](https://codeberg.org/forgejo/governance/src/branch/main/AIAgreement.md). 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 for Go changes

- 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 ran...
  - [ ] `make pr-go` before pushing

### 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

- [x] This change will be noticed by a Forgejo user or admin (feature, bug fix, performance, etc.). I suggest to include a release note for this change.
- [ ] This change is not visible to a Forgejo user or admin (refactor, dependency upgrade, etc.). I think there is no need to add a release note for this change.

<!--start release-notes-assistant-->

## Release notes
<!--URL:https://codeberg.org/forgejo/forgejo-->
- Bug fixes
  - [PR](https://codeberg.org/forgejo/forgejo/pulls/11821): <!--number 11821 --><!--line 0 --><!--description b3V0IG9mIHN5bmNocm9uaXphdGlvbiBlcnJvciBhZnRlciBpbnRlcnJ1cHRpbmcgYSBQUiBtZXJnZSBieSB1c2VyLWFnZW50IGRpc2Nvbm5lY3Q=-->out of synchronization error after interrupting a PR merge by user-agent disconnect<!--description-->
<!--end release-notes-assistant-->

Co-authored-by: Mathieu Fenniak <mathieu@fenniak.net>
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/11850
Reviewed-by: Mathieu Fenniak <mfenniak@noreply.codeberg.org>
Co-authored-by: forgejo-backport-action <forgejo-backport-action@noreply.codeberg.org>
Co-committed-by: forgejo-backport-action <forgejo-backport-action@noreply.codeberg.org>
2026-03-27 21:19:17 +01:00
..
api [v14.0/forgejo] fix: comment attachment API is more restrictive than the web UI (#11742) 2026-03-19 04:19:17 +01:00
common chore: rename 'migrations' to 'gitea_migrations' 2025-10-14 14:40:49 -06:00
install [v14.0/forgejo] fix: don't clobber authorized_keys file during installation (#10948) (#11009) 2026-01-23 21:29:47 +01:00
private chore: ensure consistent import aliasing for services and models (#10253) 2025-11-30 17:00:57 +01:00
utils [PORT] drop utils.IsExternalURL (and expand IsRiskyRedirectURL tests) (#3167) 2024-04-15 13:03:08 +00:00
web [v14.0/forgejo] fix: out of synchronization error after interrupting a PR merge by user-agent disconnect (#11850) 2026-03-27 21:19:17 +01:00
init.go [v14.0/forgejo] fix: don't clobber authorized_keys file during installation (#10948) (#11009) 2026-01-23 21:29:47 +01:00