Merging PR may fail because of various problems. The pull request may
have a dirty state because there is no transaction when merging a pull
request. ref
https://github.com/go-gitea/gitea/pull/25741#issuecomment-2074126393
This PR moves all database update operations to post-receive handler for
merging a pull request and having a database transaction. That means if
database operations fail, then the git merging will fail, the git client
will get a fail result.
There are already many tests for pull request merging, so we don't need
to add a new one.
---------
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
(cherry picked from commit ebf0c969403d91ed80745ff5bd7dfbdb08174fc7)
Conflicts:
modules/private/hook.go
routers/private/hook_post_receive.go
trivial conflicts because
263a716cb5 * Performance optimization for git push (#30104)
was not cherry-picked and because of
998a431747 Do not update PRs based on events that happened before they existed
(cherry picked from commit eb792d9f8a)
(cherry picked from commit ec3f5f9992d7ff8250c044a4467524d53bd50210)
* Split TestPullRequest out of AddTestPullRequestTask
* A Created field is added to the Issue table
* The Created field is set to the time (with nano resolution) on creation
* Record the nano time repo_module.PushUpdateOptions is created by the hook
* The decision to update a pull request created before a commit was
pushed is based on the time (with nano resolution) the git hook
was run and the Created field
It ensures the following happens:
* commit C is pushed
* the git hook queues AddTestPullRequestTask for processing and returns with success
* TestPullRequest is not called yet
* a pull request P with commit C as the head is created
* TestPullRequest runs and ignores P because it was created after the commit was received
When the "created" column is NULL, no verification is done, pull
requests that were created before the column was created in the
database cannot be newer than the latest call to a git hook.
Fixes: https://codeberg.org/forgejo/forgejo/issues/2009
(cherry picked from commit 998a431747)
Conflicts:
models/forgejo_migrations/migrate.go
see https://codeberg.org/forgejo/forgejo/pulls/3165#issuecomment-1755941
services/pull/pull.go
trivial conflicts
The fix against the race incorrectly assumes the sha of the commit being
pushed belongs to the base repository. It finds the highest possible
pull request ID from the head repository instead of looking it up in
the base repository.
Figuring out if a PR was created in the future based on the highest
index of the base repository would require collecting all of them
because there is no way to know in advance which repository may be
involved in the race.
Fixing this race can be done either by:
* Introducing a new field in the pull_request table https://codeberg.org/forgejo/forgejo/pulls/2842
which feels more like a hack than a real solution
* Refactoring the logic
which would be a significant undertaking
The race has been in the codebase for a very long time and manifests
itself in the CI, when events happen in quick succession. The only
concrete manifestation was however fixed by https://codeberg.org/forgejo/forgejo/issues/2009
Since this race now only exists in theory and not in practice, let's
revert this bugous commit until a proper solution is implemented.
Fixes: https://codeberg.org/forgejo/forgejo/issues/2817
This reverts commit 036f1eddc5.
Conflicts:
services/pull/pull.go
* Split TestPullRequest out of AddTestPullRequestTask
* Before scheduling the task, AddTestPullRequestTask stores the max
index of the repository
* When the task runs, it does not take into account pull requests that
have an index higher than the recorded max index
When AddTestPullRequestTask is called with isSync == true, it is the
direct consequence of a new commit being pushed. Forgejo knows nothing
of this new commit yet. If a PR is created later and its head
references the new commit, it will have an index that is higher and
must not be taken into account. It would be acting and triggering a
notification for a PR based on an event that happened before it
existed.
Refs: https://codeberg.org/forgejo/forgejo/issues/2009
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/2236
Reviewed-by: Gusted <gusted@noreply.codeberg.org>
Co-authored-by: Earl Warren <contact@earl-warren.org>
Co-committed-by: Earl Warren <contact@earl-warren.org>
(cherry picked from commit b3be895a30)
Related #14180
Related #25233
Related #22639Close#19786
Related #12763
This PR will change all the branches retrieve method from reading git
data to read database to reduce git read operations.
- [x] Sync git branches information into database when push git data
- [x] Create a new table `Branch`, merge some columns of `DeletedBranch`
into `Branch` table and drop the table `DeletedBranch`.
- [x] Read `Branch` table when visit `code` -> `branch` page
- [x] Read `Branch` table when list branch names in `code` page dropdown
- [x] Read `Branch` table when list git ref compare page
- [x] Provide a button in admin page to manually sync all branches.
- [x] Sync branches if repository is not empty but database branches are
empty when visiting pages with branches list
- [x] Use `commit_time desc` as the default FindBranch order by to keep
consistent as before and deleted branches will be always at the end.
---------
Co-authored-by: Jason Song <i@wolfogre.com>
The merge and update branch code was previously a little tangled and had
some very long functions. The functions were not very clear in their
reasoning and there were deficiencies in their logging and at least one
bug in the handling of LFS for update by rebase.
This PR substantially refactors this code and splits things out to into
separate functions. It also attempts to tidy up the calls by wrapping
things in "context"s. There are also attempts to improve logging when
there are errors.
Signed-off-by: Andrew Thornton <art27@cantab.net>
---------
Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Co-authored-by: delvh <dev.lh@web.de>
Swallow error just like in #20839, for the case where there is no
protected branch.
Fixes#20826 for me, though I can't tell if this now covers all cases.
This PR introduce glob match for protected branch name. The separator is
`/` and you can use `*` matching non-separator chars and use `**` across
separator.
It also supports input an exist or non-exist branch name as matching
condition and branch name condition has high priority than glob rule.
Should fix#2529 and #15705
screenshots
<img width="1160" alt="image"
src="https://user-images.githubusercontent.com/81045/205651179-ebb5492a-4ade-4bb4-a13c-965e8c927063.png">
Co-authored-by: zeripath <art27@cantab.net>
After #22362, we can feel free to use transactions without
`db.DefaultContext`.
And there are still lots of models using `db.DefaultContext`, I think we
should refactor them carefully and one by one.
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Change all license headers to comply with REUSE specification.
Fix#16132
Co-authored-by: flynnnnnnnnnn <flynnnnnnnnnn@github>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>
This PR adds a context parameter to a bunch of methods. Some helper
`xxxCtx()` methods got replaced with the normal name now.
Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Some repositories do not have the PullRequest unit present in their configuration
and unfortunately the way that IsUserAllowedToUpdate currently works assumes
that this is an error instead of just returning false.
This PR simply swallows this error allowing the function to return false.
Fix#20621
Signed-off-by: Andrew Thornton <art27@cantab.net>
Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Lauris BH <lauris@nix.lv>
* Move access and repo permission to models/perm/access
* fix test
* fix git test
* Move functions sequence
* Some improvements per @KN4CK3R and @delvh
* Move issues related code to models/issues
* Move some issues related sub package
* Merge
* Fix test
* Fix test
* Fix test
* Fix test
* Rename some files
Adds a feature [like GitHub has](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request-from-a-fork) (step 7).
If you create a new PR from a forked repo, you can select (and change later, but only if you are the PR creator/poster) the "Allow edits from maintainers" option.
Then users with write access to the base branch get more permissions on this branch:
* use the update pull request button
* push directly from the command line (`git push`)
* edit/delete/upload files via web UI
* use related API endpoints
You can't merge PRs to this branch with this enabled, you'll need "full" code write permissions.
This feature has a pretty big impact on the permission system. I might forgot changing some things or didn't find security vulnerabilities. In this case, please leave a review or comment on this PR.
Closes#17728
Co-authored-by: 6543 <6543@obermui.de>
This PR continues the work in #17125 by progressively ensuring that git
commands run within the request context.
This now means that the if there is a git repo already open in the context it will be used instead of reopening it.
Signed-off-by: Andrew Thornton <art27@cantab.net>
* Abort merge if head has been updated before pressing merge
It is possible that a PR head may be pushed to between the merge page being shown
and the merge button being pressed. Pass the current expected head in as a parameter
and cancel the merge if it has changed.
Fix#18028
Signed-off-by: Andrew Thornton <art27@cantab.net>
* adjust swagger
Signed-off-by: Andrew Thornton <art27@cantab.net>
* fix test
Signed-off-by: Andrew Thornton <art27@cantab.net>
* placate lint
Signed-off-by: Andrew Thornton <art27@cantab.net>
* Some refactors related repository model
* Move more methods out of repository
* Move repository into models/repo
* Fix test
* Fix test
* some improvements
* Remove unnecessary function
* Add checkbox to delete pull branch after successful merge
* Omit DeleteBranchAfterMerge field in json
* Log a warning instead of error when PR head branch deleted
* Add DefaultDeleteBranchAfterMerge to PullRequestConfig
* Add support for delete_branch_after_merge via API
* Fix for API: the branch should be deleted from the HEAD repo
If head and base repo are the same, reuse the already opened ctx.Repo.GitRepo
* Don't delegate to CleanupBranch, only reuse branch deletion code
CleanupBranch contains too much logic that has already been performed by the Merge
* Reuse gitrepo in MergePullRequest
Co-authored-by: Andrew Thornton <art27@cantab.net>
* Switch to use a temporary repository instead of adding remotes to the base gitea repository to prevent deadlocking the base gitea repository.
* Add documentation on how to use func **createTemporaryRepo**
* Only check for merging if the PR has not been merged in the interim
* fixup! Only check for merging if the PR has not been merged in the interim
* Try to fix test failure
* Use PR2 not PR1 in tests as PR1 merges automatically
* return already merged error
* enforce locking
* enforce locking - fix-test
* enforce locking - fix-testx2
* enforce locking - fix-testx3
* move pullrequest checking to after merge
This might improve the chance that the race does not affect us but does not prevent it.
* Remove minor race with getting merge commit id
* fixup
* move check pr after merge
* Remove unnecessary prepareTestEnv - onGiteaRun does this for us
* Add information about when merging occuring
* fix fmt
* More logging
* Attempt to fix mysql
* Try MySQL fix again
* try again
* Try again?!
* Try again?!
* Sigh
* remove the count - perhaps that will help
* next remove the update id
* next remove the update id - make it updated_unix instead
* On failure to merge ensure that the pr is rechecked for conflict errors
* On failure to merge ensure that the pr is rechecked for conflict errors
* Update models/pull.go
* Update models/pull.go
Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>
* Apply suggestions from code review
Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>
Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com>
