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-rw-r--r--changelogs/unreleased/55127-add-delay-after-mr-creation-for-async-tasks-to-complete.yml5
-rw-r--r--lib/api/merge_requests.rb4
-rw-r--r--spec/requests/api/merge_requests_spec.rb27
3 files changed, 36 insertions, 0 deletions
diff --git a/changelogs/unreleased/55127-add-delay-after-mr-creation-for-async-tasks-to-complete.yml b/changelogs/unreleased/55127-add-delay-after-mr-creation-for-async-tasks-to-complete.yml
new file mode 100644
index 00000000000..ac3bb596842
--- /dev/null
+++ b/changelogs/unreleased/55127-add-delay-after-mr-creation-for-async-tasks-to-complete.yml
@@ -0,0 +1,5 @@
+---
+title: Wait for pipeline creation to complete before accepting a MR via API
+merge_request: 27978
+author: kerrizor
+type: fixed
diff --git a/lib/api/merge_requests.rb b/lib/api/merge_requests.rb
index ce85772e4ed..daa98c22e5e 100644
--- a/lib/api/merge_requests.rb
+++ b/lib/api/merge_requests.rb
@@ -367,6 +367,10 @@ module API
merge_request = find_project_merge_request(params[:merge_request_iid])
merge_when_pipeline_succeeds = to_boolean(params[:merge_when_pipeline_succeeds])
+ if merge_when_pipeline_succeeds || merge_request.merge_when_pipeline_succeeds
+ render_api_error!('Not allowed: pipeline does not exist', 405) unless merge_request.head_pipeline
+ end
+
# Merge request can not be merged
# because user dont have permissions to push into target branch
unauthorized! unless merge_request.can_be_merged_by?(current_user)
diff --git a/spec/requests/api/merge_requests_spec.rb b/spec/requests/api/merge_requests_spec.rb
index 5c94a87529b..007f3517e64 100644
--- a/spec/requests/api/merge_requests_spec.rb
+++ b/spec/requests/api/merge_requests_spec.rb
@@ -1495,6 +1495,33 @@ describe API::MergeRequests do
expect(json_response['merge_when_pipeline_succeeds']).to eq(true)
end
+ context 'when the MR requires pipeline success' do
+ it 'returns 405 if the pipeline is missing' do
+ allow_any_instance_of(MergeRequest)
+ .to receive(:merge_when_pipeline_succeeds).and_return(true)
+ allow_any_instance_of(MergeRequest).to receive(:head_pipeline).and_return(nil)
+
+ put api("/projects/#{project.id}/merge_requests/#{merge_request.iid}/merge", user)
+
+ expect(response).to have_gitlab_http_status(405)
+ expect(json_response['message']).to eq('Not allowed: pipeline does not exist')
+ end
+ end
+
+ context 'when the request requires pipeline success' do
+ it 'returns 405 if the pipeline is missing' do
+ allow_any_instance_of(MergeRequest)
+ .to receive(:merge_when_pipeline_succeeds).and_return(true)
+ allow_any_instance_of(MergeRequest).to receive(:head_pipeline).and_return(nil)
+
+ put api("/projects/#{project.id}/merge_requests/#{merge_request.iid}/merge", user),
+ params: { merge_when_pipeline_succeeds: true }
+
+ expect(response).to have_gitlab_http_status(405)
+ expect(json_response['message']).to eq('Not allowed: pipeline does not exist')
+ end
+ end
+
it "returns 404 for an invalid merge request IID" do
put api("/projects/#{project.id}/merge_requests/12345/merge", user)