Add Issues migration to Project Migration

  - Add issues to Project Migration when using
    Group Migration tool

ee/spec/lib/bulk_imports/projects/pipelines/issues_pipeline_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe BulkImports::Projects::Pipelines::IssuesPipeline do
+  let_it_be(:user) { create(:user) }
+  let_it_be(:group) { create(:group) }
+  let_it_be(:project) { create(:project, group: group) }
+  let_it_be(:bulk_import) { create(:bulk_import, user: user) }
+  let_it_be(:filepath) { 'spec/fixtures/bulk_imports/gz/issues.ndjson.gz' }
+  let_it_be(:entity) do
+    create(
+      :bulk_import_entity,
+      :project_entity,
+      project: project,
+      bulk_import: bulk_import,
+      source_full_path: 'source/full/path',
+      destination_name: 'My Destination Project',
+      destination_namespace: group.full_path
+    )
+  end
+
+  let_it_be(:tracker) { create(:bulk_import_tracker, entity: entity) }
+  let_it_be(:context) { BulkImports::Pipeline::Context.new(tracker) }
+
+  let(:issue) do
+    {
+      'title' => 'Imported Issue',
+      'description' => 'Description',
+      'state' => 'opened',
+      'updated_at' => '2016-06-14T15:02:47.967Z',
+      'author_id' => 22,
+      'epic_issue' => {
+        'id' => 78,
+        'relative_position' => 1073740323,
+        'epic' => {
+          'title' => 'An epic',
+          'state_id' => 'opened',
+          'author_id' => 22
+        }
+      }
+    }
+  end
+
+  subject(:pipeline) { described_class.new(context) }
+
+  describe '#run' do
+    before do
+      group.add_owner(user)
+      issue_with_index = [issue, 0]
+
+      allow_next_instance_of(BulkImports::Common::Extractors::NdjsonExtractor) do |extractor|
+        allow(extractor).to receive(:extract).and_return(BulkImports::Pipeline::ExtractedData.new(data: [issue_with_index]))
+      end
+    end
+
+    context 'with pre-existing epic' do
+      it 'associates existing epic with imported issue' do
+        epic = create(:epic, title: 'An epic', group: group)
+
+        expect { pipeline.run }.not_to change { Epic.count }
+
+        expect(group.epics.count).to eq(1)
+        expect(project.issues.first.epic).to eq(epic)
+        expect(project.issues.first.epic_issue.relative_position).not_to be_nil
+      end
+    end
+
+    context 'without pre-existing epic' do
+      it 'creates a new epic for imported issue' do
+        group.epics.delete_all
+
+        expect { pipeline.run }.to change { Epic.count }.from(0).to(1)
+        expect(group.epics.count).to eq(1)
+
+        expect(project.issues.first.epic).not_to be_nil
+        expect(project.issues.first.epic_issue.relative_position).not_to be_nil
+      end
+    end
+  end
+end

lib/bulk_imports/ndjson_pipeline.rb

@@ -14,7 +14,7 @@ module BulkImports
         relation_definition = import_export_config.top_relation_tree(relation)
 
         deep_transform_relation!(relation_hash, relation, relation_definition) do |key, hash|
-          Gitlab::ImportExport::Group::RelationFactory.create(
+          relation_factory.create(
             relation_index: relation_index,
             relation_sym: key.to_sym,
             relation_hash: hash,
@@ -83,6 +83,10 @@ module BulkImports
         "Gitlab::ImportExport::#{portable.class}::ObjectBuilder".constantize
       end
 
+      def relation_factory
+        "Gitlab::ImportExport::#{portable.class}::RelationFactory".constantize
+      end
+
       def relation
         self.class.relation
       end

lib/bulk_imports/projects/pipelines/issues_pipeline.rb

+# frozen_string_literal: true
+
+module BulkImports
+  module Projects
+    module Pipelines
+      class IssuesPipeline
+        include NdjsonPipeline
+
+        relation_name 'issues'
+
+        extractor ::BulkImports::Common::Extractors::NdjsonExtractor, relation: relation
+      end
+    end
+  end
+end

lib/bulk_imports/projects/stage.rb

@@ -15,9 +15,13 @@ module BulkImports
             pipeline: BulkImports::Common::Pipelines::LabelsPipeline,
             stage: 1
           },
+          issues: {
+            pipeline: BulkImports::Projects::Pipelines::IssuesPipeline,
+            stage: 2
+          },
           finisher: {
             pipeline: BulkImports::Common::Pipelines::EntityFinisher,
-            stage: 2
+            stage: 3
           }
         }
       end

spec/lib/bulk_imports/ndjson_pipeline_spec.rb

@@ -186,4 +186,20 @@ RSpec.describe BulkImports::NdjsonPipeline do
       end
     end
   end
+
+  describe '#relation_factory' do
+    context 'when portable is group' do
+      it 'returns group relation factory' do
+        expect(subject.relation_factory).to eq(Gitlab::ImportExport::Group::RelationFactory)
+      end
+    end
+
+    context 'when portable is project' do
+      subject { NdjsonPipelineClass.new(project, user) }
+
+      it 'returns project relation factory' do
+        expect(subject.relation_factory).to eq(Gitlab::ImportExport::Project::RelationFactory)
+      end
+    end
+  end
 end

spec/lib/bulk_imports/projects/pipelines/issues_pipeline_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe BulkImports::Projects::Pipelines::IssuesPipeline do
+  let_it_be(:user) { create(:user) }
+  let_it_be(:group) { create(:group) }
+  let_it_be(:project) { create(:project, group: group) }
+  let_it_be(:bulk_import) { create(:bulk_import, user: user) }
+  let_it_be(:entity) do
+    create(
+      :bulk_import_entity,
+      :project_entity,
+      project: project,
+      bulk_import: bulk_import,
+      source_full_path: 'source/full/path',
+      destination_name: 'My Destination Project',
+      destination_namespace: group.full_path
+    )
+  end
+
+  let_it_be(:tracker) { create(:bulk_import_tracker, entity: entity) }
+  let_it_be(:context) { BulkImports::Pipeline::Context.new(tracker) }
+
+  let(:issue_attributes) { {} }
+  let(:issue) do
+    {
+      'iid' => 7,
+      'title' => 'Imported Issue',
+      'description' => 'Description',
+      'state' => 'opened',
+      'updated_at' => '2016-06-14T15:02:47.967Z',
+      'author_id' => 22
+    }.merge(issue_attributes)
+  end
+
+  subject(:pipeline) { described_class.new(context) }
+
+  describe '#run' do
+    before do
+      group.add_owner(user)
+      issue_with_index = [issue, 0]
+
+      allow_next_instance_of(BulkImports::Common::Extractors::NdjsonExtractor) do |extractor|
+        allow(extractor).to receive(:extract).and_return(BulkImports::Pipeline::ExtractedData.new(data: [issue_with_index]))
+      end
+
+      pipeline.run
+    end
+
+    it 'imports issue into destination project' do
+      expect(project.issues.count).to eq(1)
+
+      imported_issue = project.issues.last
+
+      aggregate_failures do
+        expect(imported_issue.iid).to eq(7)
+        expect(imported_issue.title).to eq(issue['title'])
+        expect(imported_issue.description).to eq(issue['description'])
+        expect(imported_issue.author).to eq(user)
+        expect(imported_issue.state).to eq('opened')
+        expect(imported_issue.updated_at.to_s).to eq('2016-06-14 15:02:47 UTC')
+      end
+    end
+
+    context 'zoom meetings' do
+      let(:issue_attributes) { { 'zoom_meetings' => [{ 'url' => 'https://zoom.us/j/123456789' }] } }
+
+      it 'restores zoom meetings' do
+        expect(project.issues.last.zoom_meetings.first.url).to eq('https://zoom.us/j/123456789')
+      end
+    end
+
+    context 'sentry issue' do
+      let(:issue_attributes) { { 'sentry_issue' => { 'sentry_issue_identifier' => '1234567891' } } }
+
+      it 'restores sentry issue information' do
+        expect(project.issues.last.sentry_issue.sentry_issue_identifier).to eq(1234567891)
+      end
+    end
+
+    context 'award emoji' do
+      let(:issue_attributes) { { 'award_emoji' => [{ 'name' => 'musical_keyboard', 'user_id' => 22 }] } }
+
+      it 'has award emoji on an issue' do
+        award_emoji = project.issues.last.award_emoji.first
+
+        expect(award_emoji.name).to eq('musical_keyboard')
+        expect(award_emoji.user).to eq(user)
+      end
+    end
+    context 'issue state' do
+      let(:issue_attributes) { { 'state' => 'closed' } }
+
+      it 'restores issue state' do
+        expect(project.issues.last.state).to eq('closed')
+      end
+    end
+
+    context 'labels' do
+      let(:issue_attributes) do
+        {
+          'label_links' => [
+            { 'label' => { 'title' => 'imported label 1', 'type' => 'ProjectLabel' } },
+            { 'label' => { 'title' => 'imported label 2', 'type' => 'ProjectLabel' } }
+          ]
+        }
+      end
+
+      it 'restores issue labels' do
+        expect(project.issues.last.labels.pluck(:title)).to contain_exactly('imported label 1', 'imported label 2')
+      end
+    end
+
+    context 'milestone' do
+      let(:issue_attributes) { { 'milestone' => { 'title' => 'imported milestone' } } }
+
+      it 'restores issue milestone' do
+        expect(project.issues.last.milestone.title).to eq('imported milestone')
+      end
+    end
+
+    context 'timelogs' do
+      let(:issue_attributes) { { 'timelogs' => [{ 'time_spent' => 72000, 'spent_at' => '2019-12-27T00:00:00.000Z', 'user_id' => 22 }] } }
+
+      it 'restores issue timelogs' do
+        timelog = project.issues.last.timelogs.first
+
+        aggregate_failures do
+          expect(timelog.time_spent).to eq(72000)
+          expect(timelog.spent_at).to eq("2019-12-27T00:00:00.000Z")
+        end
+      end
+    end
+
+    context 'notes' do
+      let(:issue_attributes) do
+        {
+          'notes' => [
+            {
+              'note' => 'Issue note',
+              'author_id' => 22,
+              'author' => {
+                'name' => 'User 22'
+              },
+              'updated_at' => '2016-06-14T15:02:47.770Z',
+              'award_emoji' => [
+                {
+                  'name' => 'clapper',
+                  'user_id' => 22
+                }
+              ]
+            }
+          ]
+        }
+      end
+
+      it 'restores issue notes and their award emoji' do
+        note = project.issues.last.notes.first
+
+        aggregate_failures do
+          expect(note.note).to eq("Issue note\n\n *By User 22 on 2016-06-14T15:02:47 (imported from GitLab)*")
+          expect(note.award_emoji.first.name).to eq('clapper')
+        end
+      end
+    end
+  end
+end

spec/lib/bulk_imports/projects/stage_spec.rb

@@ -7,7 +7,8 @@ RSpec.describe BulkImports::Projects::Stage do
     [
       [0, BulkImports::Projects::Pipelines::ProjectPipeline],
       [1, BulkImports::Common::Pipelines::LabelsPipeline],
-      [2, BulkImports::Common::Pipelines::EntityFinisher]
+      [2, BulkImports::Projects::Pipelines::IssuesPipeline],
+      [3, BulkImports::Common::Pipelines::EntityFinisher]
     ]
   end