This commit reduces I/O load and memory utilization during PostReceive
for the common case when no project hooks or services are set up.
We saw a Gitaly N+1 issue in `CommitDelta` when many tags or branches
are pushed. We can reduce this overhead in the common case because we
observe that most new projects do not have any Web hooks or services,
especially when they are first created. Previously, `BaseHooksService`
unconditionally iterated through the last 20 commits of each ref to
build the `push_data` structure. The `push_data` structured was used in
numerous places:
1. Building the push payload in `EventCreateService`
2. Creating a CI pipeline
3. Executing project Web or system hooks
4. Executing project services
5. As the return value of `BaseHooksService#execute`
6. `BranchHooksService#invalidated_file_types`
We only need to generate the full `push_data` for items 3, 4, and 6.
Item 1: `EventCreateService` only needs the last commit and doesn't
actually need the commit deltas.
Item 2: In addition, `Ci::CreatePipelineService` only needed a subset of
the parameters.
Item 5: The return value of `BaseHooksService#execute` also wasn't being
used anywhere.
Item 6: This is only used when pushing to the default branch, so if
many tags are pushed we can save significant I/O here.
Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/65878
Fic
When user uses Pipelines for merge requests, the pipeline is a run on
a merge request ref instead of branch ref. However, we should send
source ref as a webhook in order to respect the original behavior.
Previously the raw push option Array was sent to Pipeline::Chain::Skip.
This commit updates this class (and the chain of classes that pass the
push option parameters from the API internal `post_receive` endpoint to
that class) to treat push options as a Hash of options parsed by
GitLab::PushOptions.
The GitLab::PushOptions class takes options like this:
-o ci.skip -o merge_request.create -o merge_request.target=branch
and turns them into a Hash like this:
{
ci: {
skip: true
},
merge_request: {
create: true,
target: 'branch'
}
}
This now how Pipeline::Chain::Skip is determining if the `ci.skip` push
option was used.
Legacy artifacts have been correctly migrated to new place -
ci_job_artifacts. Now it's time to remove the related code, but before
that we should ensure it doesn't break anything by using feature flag.