Merge branch 'merge-request-commits-table' into 'master'

Add table for merge request commits

Closes #30224

See merge request !12527

9 files changed, 70 insertions, 38 deletions

diff --git a/spec/lib/gitlab/import_export/all_models.yml b/spec/lib/gitlab/import_export/all_models.yml
index a5f09f1856e..562f0c2991c 100644
--- a/spec/lib/gitlab/import_export/all_models.yml
+++ b/spec/lib/gitlab/import_export/all_models.yml
@@ -88,7 +88,10 @@ merge_requests:
 - head_pipeline
 merge_request_diff:
 - merge_request
+- merge_request_diff_commits
 - merge_request_diff_files
+merge_request_diff_commits:
+- merge_request_diff
 merge_request_diff_files:
 - merge_request_diff
 pipelines:
diff --git a/spec/lib/gitlab/import_export/project.json b/spec/lib/gitlab/import_export/project.json
index 98c117b4cd8..469a014e4d2 100644
--- a/spec/lib/gitlab/import_export/project.json
+++ b/spec/lib/gitlab/import_export/project.json
@@ -2741,13 +2741,12 @@
       "merge_request_diff": {
         "id": 27,
         "state": "collected",
-        "st_commits": [
+        "merge_request_diff_commits": [
           {
-            "id": "bb5206fee213d983da88c47f9cf4cc6caf9c66dc",
+            "merge_request_diff_id": 27,
+            "relative_order": 0,
+            "sha": "bb5206fee213d983da88c47f9cf4cc6caf9c66dc",
             "message": "Feature conflcit added\n\nSigned-off-by: Dmitriy Zaporozhets \u003cdmitriy.zaporozhets@gmail.com\u003e\n",
-            "parent_ids": [
-              "5937ac0a7beb003549fc5fd26fc247adbce4a52e"
-            ],
             "authored_date": "2014-08-06T08:35:52.000+02:00",
             "author_name": "Dmitriy Zaporozhets",
             "author_email": "dmitriy.zaporozhets@gmail.com",
@@ -2756,11 +2755,10 @@
             "committer_email": "dmitriy.zaporozhets@gmail.com"
           },
           {
-            "id": "5937ac0a7beb003549fc5fd26fc247adbce4a52e",
+            "merge_request_diff_id": 27,
+            "relative_order": 1,
+            "sha": "5937ac0a7beb003549fc5fd26fc247adbce4a52e",
             "message": "Add submodule from gitlab.com\n\nSigned-off-by: Dmitriy Zaporozhets \u003cdmitriy.zaporozhets@gmail.com\u003e\n",
-            "parent_ids": [
-              "570e7b2abdd848b95f2f578043fc23bd6f6fd24d"
-            ],
             "authored_date": "2014-02-27T10:01:38.000+01:00",
             "author_name": "Dmitriy Zaporozhets",
             "author_email": "dmitriy.zaporozhets@gmail.com",
@@ -2769,11 +2767,10 @@
             "committer_email": "dmitriy.zaporozhets@gmail.com"
           },
           {
-            "id": "570e7b2abdd848b95f2f578043fc23bd6f6fd24d",
+            "merge_request_diff_id": 27,
+            "relative_order": 2,
+            "sha": "570e7b2abdd848b95f2f578043fc23bd6f6fd24d",
             "message": "Change some files\n\nSigned-off-by: Dmitriy Zaporozhets \u003cdmitriy.zaporozhets@gmail.com\u003e\n",
-            "parent_ids": [
-              "6f6d7e7ed97bb5f0054f2b1df789b39ca89b6ff9"
-            ],
             "authored_date": "2014-02-27T09:57:31.000+01:00",
             "author_name": "Dmitriy Zaporozhets",
             "author_email": "dmitriy.zaporozhets@gmail.com",
@@ -2782,11 +2779,10 @@
             "committer_email": "dmitriy.zaporozhets@gmail.com"
           },
           {
-            "id": "6f6d7e7ed97bb5f0054f2b1df789b39ca89b6ff9",
+            "merge_request_diff_id": 27,
+            "relative_order": 3,
+            "sha": "6f6d7e7ed97bb5f0054f2b1df789b39ca89b6ff9",
             "message": "More submodules\n\nSigned-off-by: Dmitriy Zaporozhets \u003cdmitriy.zaporozhets@gmail.com\u003e\n",
-            "parent_ids": [
-              "d14d6c0abdd253381df51a723d58691b2ee1ab08"
-            ],
             "authored_date": "2014-02-27T09:54:21.000+01:00",
             "author_name": "Dmitriy Zaporozhets",
             "author_email": "dmitriy.zaporozhets@gmail.com",
@@ -2795,11 +2791,10 @@
             "committer_email": "dmitriy.zaporozhets@gmail.com"
           },
           {
-            "id": "d14d6c0abdd253381df51a723d58691b2ee1ab08",
+            "merge_request_diff_id": 27,
+            "relative_order": 4,
+            "sha": "d14d6c0abdd253381df51a723d58691b2ee1ab08",
             "message": "Remove ds_store files\n\nSigned-off-by: Dmitriy Zaporozhets \u003cdmitriy.zaporozhets@gmail.com\u003e\n",
-            "parent_ids": [
-              "c1acaa58bbcbc3eafe538cb8274ba387047b69f8"
-            ],
             "authored_date": "2014-02-27T09:49:50.000+01:00",
             "author_name": "Dmitriy Zaporozhets",
             "author_email": "dmitriy.zaporozhets@gmail.com",
@@ -2808,11 +2803,10 @@
             "committer_email": "dmitriy.zaporozhets@gmail.com"
           },
           {
-            "id": "c1acaa58bbcbc3eafe538cb8274ba387047b69f8",
+            "merge_request_diff_id": 27,
+            "relative_order": 5,
+            "sha": "c1acaa58bbcbc3eafe538cb8274ba387047b69f8",
             "message": "Ignore DS files\n\nSigned-off-by: Dmitriy Zaporozhets \u003cdmitriy.zaporozhets@gmail.com\u003e\n",
-            "parent_ids": [
-              "ae73cb07c9eeaf35924a10f713b364d32b2dd34f"
-            ],
             "authored_date": "2014-02-27T09:48:32.000+01:00",
             "author_name": "Dmitriy Zaporozhets",
             "author_email": "dmitriy.zaporozhets@gmail.com",
diff --git a/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb b/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb
index c11b15a811b..d50d238ddcd 100644
--- a/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb
+++ b/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb
@@ -95,6 +95,11 @@ describe Gitlab::ImportExport::ProjectTreeRestorer, services: true do
         expect(MergeRequestDiffFile.where.not(diff: nil).count).to eq(9)
       end
 
+      it 'has the correct data for merge request diff commits in serialised and table formats' do
+        expect(MergeRequestDiff.where.not(st_commits: nil).count).to eq(7)
+        expect(MergeRequestDiffCommit.count).to eq(6)
+      end
+
       it 'has the correct time for merge request st_commits' do
         st_commits = MergeRequestDiff.where.not(st_commits: nil).first.st_commits
 
diff --git a/spec/lib/gitlab/import_export/project_tree_saver_spec.rb b/spec/lib/gitlab/import_export/project_tree_saver_spec.rb
index e52f79513f1..22a65e24f26 100644
--- a/spec/lib/gitlab/import_export/project_tree_saver_spec.rb
+++ b/spec/lib/gitlab/import_export/project_tree_saver_spec.rb
@@ -87,6 +87,10 @@ describe Gitlab::ImportExport::ProjectTreeSaver, services: true do
         expect(saved_project_json['merge_requests'].first['merge_request_diff']['merge_request_diff_files']).not_to be_empty
       end
 
+      it 'has merge request diff commits' do
+        expect(saved_project_json['merge_requests'].first['merge_request_diff']['merge_request_diff_commits']).not_to be_empty
+      end
+
       it 'has merge requests comments' do
         expect(saved_project_json['merge_requests'].first['notes']).not_to be_empty
       end
diff --git a/spec/lib/gitlab/import_export/safe_model_attributes.yml b/spec/lib/gitlab/import_export/safe_model_attributes.yml
index 697ddf52af9..b4a7e956686 100644
--- a/spec/lib/gitlab/import_export/safe_model_attributes.yml
+++ b/spec/lib/gitlab/import_export/safe_model_attributes.yml
@@ -172,6 +172,17 @@ MergeRequestDiff:
 - real_size
 - head_commit_sha
 - start_commit_sha
+MergeRequestDiffCommit:
+- merge_request_diff_id
+- relative_order
+- sha
+- authored_date
+- committed_date
+- author_name
+- author_email
+- committer_name
+- committer_email
+- message
 MergeRequestDiffFile:
 - merge_request_diff_id
 - relative_order
diff --git a/spec/models/ci/build_spec.rb b/spec/models/ci/build_spec.rb
index 2b10791ad6d..431fcda165d 100644
--- a/spec/models/ci/build_spec.rb
+++ b/spec/models/ci/build_spec.rb
@@ -863,7 +863,7 @@ describe Ci::Build, :models do
         pipeline2 = create(:ci_pipeline, project: project)
         @build2 = create(:ci_build, pipeline: pipeline2)
 
-        allow(@merge_request).to receive(:commits_sha)
+        allow(@merge_request).to receive(:commit_shas)
           .and_return([pipeline.sha, pipeline2.sha])
         allow(MergeRequest).to receive_message_chain(:includes, :where, :reorder).and_return([@merge_request])
       end
diff --git a/spec/models/merge_request_diff_commit_spec.rb b/spec/models/merge_request_diff_commit_spec.rb
new file mode 100644
index 00000000000..dbfd1526518
--- /dev/null
+++ b/spec/models/merge_request_diff_commit_spec.rb
@@ -0,0 +1,15 @@
+require 'rails_helper'
+
+describe MergeRequestDiffCommit, type: :model do
+  let(:merge_request) { create(:merge_request) }
+  subject { merge_request.commits.first }
+
+  describe '#to_hash' do
+    it 'returns the same results as Commit#to_hash, except for parent_ids' do
+      commit_from_repo = merge_request.project.repository.commit(subject.sha)
+      commit_from_repo_hash = commit_from_repo.to_hash.merge(parent_ids: [])
+
+      expect(subject.to_hash).to eq(commit_from_repo_hash)
+    end
+  end
+end
diff --git a/spec/models/merge_request_diff_spec.rb b/spec/models/merge_request_diff_spec.rb
index 4ad4abaa572..edc2f4bb9f0 100644
--- a/spec/models/merge_request_diff_spec.rb
+++ b/spec/models/merge_request_diff_spec.rb
@@ -98,7 +98,7 @@ describe MergeRequestDiff, models: true do
     end
 
     it 'saves empty state' do
-      allow_any_instance_of(MergeRequestDiff).to receive(:commits)
+      allow_any_instance_of(MergeRequestDiff).to receive_message_chain(:compare, :commits)
         .and_return([])
 
       mr_diff = create(:merge_request).merge_request_diff
@@ -107,14 +107,14 @@ describe MergeRequestDiff, models: true do
     end
   end
 
-  describe '#commits_sha' do
+  describe '#commit_shas' do
     it 'returns all commits SHA using serialized commits' do
       subject.st_commits = [
         { id: 'sha1' },
         { id: 'sha2' }
       ]
 
-      expect(subject.commits_sha).to eq(%w(sha1 sha2))
+      expect(subject.commit_shas).to eq(%w(sha1 sha2))
     end
   end
 
diff --git a/spec/models/merge_request_spec.rb b/spec/models/merge_request_spec.rb
index d91f1f1a11c..ea405fabff0 100644
--- a/spec/models/merge_request_spec.rb
+++ b/spec/models/merge_request_spec.rb
@@ -720,14 +720,14 @@ describe MergeRequest, models: true do
     subject { create :merge_request, :simple }
   end
 
-  describe '#commits_sha' do
+  describe '#commit_shas' do
     before do
-      allow(subject.merge_request_diff).to receive(:commits_sha)
+      allow(subject.merge_request_diff).to receive(:commit_shas)
         .and_return(['sha1'])
     end
 
     it 'delegates to merge request diff' do
-      expect(subject.commits_sha).to eq ['sha1']
+      expect(subject.commit_shas).to eq ['sha1']
     end
   end
 
@@ -752,7 +752,7 @@ describe MergeRequest, models: true do
   describe '#all_pipelines' do
     shared_examples 'returning pipelines with proper ordering' do
       let!(:all_pipelines) do
-        subject.all_commits_sha.map do |sha|
+        subject.all_commit_shas.map do |sha|
           create(:ci_empty_pipeline,
                  project: subject.source_project,
                  sha: sha,
@@ -794,16 +794,16 @@ describe MergeRequest, models: true do
     end
   end
 
-  describe '#all_commits_sha' do
+  describe '#all_commit_shas' do
     context 'when merge request is persisted' do
-      let(:all_commits_sha) do
+      let(:all_commit_shas) do
         subject.merge_request_diffs.flat_map(&:commits).map(&:sha).uniq
       end
 
       shared_examples 'returning all SHA' do
         it 'returns all SHA from all merge_request_diffs' do
           expect(subject.merge_request_diffs.size).to eq(2)
-          expect(subject.all_commits_sha).to eq(all_commits_sha)
+          expect(subject.all_commit_shas).to eq(all_commit_shas)
         end
       end
 
@@ -834,7 +834,7 @@ describe MergeRequest, models: true do
         end
 
         it 'returns commits from compare commits temporary data' do
-          expect(subject.all_commits_sha).to eq [commit, commit]
+          expect(subject.all_commit_shas).to eq [commit, commit]
         end
       end
 
@@ -842,7 +842,7 @@ describe MergeRequest, models: true do
         subject { build(:merge_request) }
 
         it 'returns array with diff head sha element only' do
-          expect(subject.all_commits_sha).to eq [subject.diff_head_sha]
+          expect(subject.all_commit_shas).to eq [subject.diff_head_sha]
         end
       end
     end