Reversing pipeline order on import

Updating tree restorer and saver tests

changelogs/unreleased/60121-pipelines-in-reverse-order-after-import.yml

+---
+title: Reverse Pipeline Order On Import
+merge_request: 32388
+author:
+type: fixed

lib/gitlab/import_export/project_tree_restorer.rb

@@ -28,6 +28,8 @@ module Gitlab
 
         RelationRenameService.rename(@tree_hash)
 
+        correct_pipeline_order
+
         ActiveRecord::Base.uncached do
           ActiveRecord::Base.no_touching do
             create_relations
@@ -235,6 +237,15 @@ module Gitlab
       def nil_iid_pipeline?(relation_key, relation_item)
         relation_key == 'ci_pipelines' && relation_item['iid'].nil?
       end
+
+      def correct_pipeline_order
+        if @tree_hash['ci_pipelines'].present?
+          pipelines = @tree_hash["ci_pipelines"]
+          if pipelines.first["created_at"] > pipelines.last["created_at"]
+            @tree_hash["ci_pipelines"].sort_by! { |pipelines| pipelines['created_at'] }
+          end
+        end
+      end
     end
   end
 end

spec/lib/gitlab/import_export/project_tree_restorer_spec.rb

@@ -62,6 +62,13 @@ describe Gitlab::ImportExport::ProjectTreeRestorer do
         expect(Milestone.find_by_description('test milestone').issues.count).to eq(2)
       end
 
+      it 'has ci pipeline builds in reverse chronological order' do
+        first_build = @project.ci_pipelines.first
+        last_build = @project.ci_pipelines.last
+
+        expect(first_build["created_at"]).to be < last_build["created_at"]
+      end
+
       context 'when importing a project with cached_markdown_version and note_html' do
         context 'for an Issue' do
           it 'does not import note_html' do

spec/lib/gitlab/import_export/project_tree_saver_spec.rb

@@ -196,10 +196,9 @@ describe Gitlab::ImportExport::ProjectTreeSaver do
 
       it 'has pipeline builds' do
         builds_count = saved_project_json
-          .dig('ci_pipelines', 0, 'stages', 0, 'statuses')
-          .count { |hash| hash['type'] == 'Ci::Build' }
+          .dig('ci_pipelines').length
 
-        expect(builds_count).to eq(1)
+        expect(builds_count).to eq(3)
       end
 
       it 'has no when YML attributes but only the DB column' do
@@ -359,18 +358,22 @@ describe Gitlab::ImportExport::ProjectTreeSaver do
     milestone = create(:milestone, project: project)
     merge_request = create(:merge_request, source_project: project, milestone: milestone)
 
-    ci_build = create(:ci_build, project: project, when: nil)
-    ci_build.pipeline.update(project: project)
-    create(:commit_status, project: project, pipeline: ci_build.pipeline)
-
-    create(:milestone, project: project)
-    create(:discussion_note, noteable: issue, project: project)
-    create(:note, noteable: merge_request, project: project)
-    create(:note, noteable: snippet, project: project)
-    create(:note_on_commit,
-           author: user,
-           project: project,
-           commit_id: ci_build.pipeline.sha)
+    pipelines = []
+
+    3.times do |i|
+      pipelines.push(create(:ci_empty_pipeline, project: project, sha: project.commit.sha, ref: 'master'))
+      ci_build = create(:ci_build, project: project, when: nil, pipeline: pipelines[i])
+      ci_build.pipeline.update(project: project)
+      create(:commit_status, project: project, pipeline: ci_build.pipeline)
+      create(:milestone, project: project)
+      create(:discussion_note, noteable: issue, project: project)
+      create(:note, noteable: merge_request, project: project)
+      create(:note, noteable: snippet, project: project)
+      create(:note_on_commit,
+            author: user,
+            project: project,
+            commit_id: ci_build.pipeline.sha)
+    end
 
     create(:resource_label_event, label: project_label, issue: issue)
     create(:resource_label_event, label: group_label, merge_request: merge_request)