Sort Pipelines by ID on Project Import

- Previously when project was imported pipelines
  were shown in a reversed order
- This change sorts pipelines by id before doing
  the import to ensure that they are shown in a
  correct order on pipelines page

changelogs/unreleased/georgekoltsov-27883-fix-import-pipeline-order.yml

+---
+title: Fix reversed pipeline order on Project Import
+merge_request: 26390
+author:
+type: fixed

lib/gitlab/import_export/relation_tree_restorer.rb

@@ -26,6 +26,7 @@ module Gitlab
         ActiveRecord::Base.uncached do
           ActiveRecord::Base.no_touching do
             update_params!
+            update_relation_hashes!
             create_relations!
           end
         end
@@ -217,6 +218,10 @@ module Gitlab
           excluded_keys: excluded_keys_for_relation(relation_key)
         }
       end
+
+      def update_relation_hashes!
+        @tree_hash['ci_pipelines']&.sort_by! { |hash| hash['id'] }
+      end
     end
   end
 end

spec/fixtures/lib/gitlab/import_export/complex/project.json

@@ -6452,7 +6452,7 @@
       ]
     },
     {
-      "id": 37,
+      "id": 26,
       "project_id": 5,
       "ref": "master",
       "sha": "048721d90c449b244b7b4c53a9186b04330174ec",
@@ -6744,7 +6744,7 @@
       ]
     },
     {
-      "id": 40,
+      "id": 19,
       "project_id": 5,
       "ref": "master",
       "sha": "2ea1f3dec713d940208fb5ce4a38765ecb5d3f73",
@@ -6851,7 +6851,7 @@
       ]
     },
     {
-      "id": 42,
+      "id": 20,
       "project_id": 5,
       "ref": "master",
       "sha": "ce84140e8b878ce6e7c4d298c7202ff38170e3ac",

spec/lib/gitlab/import_export/project/tree_restorer_spec.rb

@@ -104,6 +104,24 @@ describe Gitlab::ImportExport::Project::TreeRestorer do
         expect(pipeline.merge_request.source_branch).to eq('feature_conflict')
       end
 
+      it 'restores pipelines based on ascending id order' do
+        expected_ordered_shas = %w[
+          2ea1f3dec713d940208fb5ce4a38765ecb5d3f73
+          ce84140e8b878ce6e7c4d298c7202ff38170e3ac
+          048721d90c449b244b7b4c53a9186b04330174ec
+          sha-notes
+          5f923865dde3436854e9ceb9cdb7815618d4e849
+          d2d430676773caa88cdaf7c55944073b2fd5561a
+          2ea1f3dec713d940208fb5ce4a38765ecb5d3f73
+        ]
+
+        project = Project.find_by_path('project')
+
+        project.ci_pipelines.order(:id).each_with_index do |pipeline, i|
+          expect(pipeline['sha']).to eq expected_ordered_shas[i]
+        end
+      end
+
       it 'preserves updated_at on issues' do
         issue = Issue.where(description: 'Aliquam enim illo et possimus.').first
 
@@ -385,7 +403,7 @@ describe Gitlab::ImportExport::Project::TreeRestorer do
         it 'has the correct number of pipelines and statuses' do
           expect(@project.ci_pipelines.size).to eq(7)
 
-          @project.ci_pipelines.order(:id).zip([2, 2, 2, 2, 2, 0, 0])
+          @project.ci_pipelines.order(:id).zip([2, 0, 2, 2, 2, 2, 0])
             .each do |(pipeline, expected_status_size)|
             expect(pipeline.statuses.size).to eq(expected_status_size)
           end
@@ -422,7 +440,7 @@ describe Gitlab::ImportExport::Project::TreeRestorer do
         end
 
         it 'restores external pull request for the restored pipeline' do
-          pipeline_with_external_pr = @project.ci_pipelines.order(:id).last
+          pipeline_with_external_pr = @project.ci_pipelines.where(source: 'external_pull_request_event').first
 
           expect(pipeline_with_external_pr.external_pull_request).to be_persisted
         end