Add :sectional_codeowners feature flag

This shouldn't be enabled at all for now.

ee/lib/gitlab/code_owners/file.rb

@@ -40,6 +40,10 @@ module Gitlab
       end
 
       def get_parsed_data
+        if Feature.enabled?(:sectional_codeowners, default_enabled: false)
+          return get_parsed_sectional_data
+        end
+
         parsed = {}
 
         data.lines.each do |line|
@@ -57,6 +61,10 @@ module Gitlab
         parsed
       end
 
+      def get_parsed_sectional_data
+        {}
+      end
+
       def normalize_pattern(pattern)
         # Remove `\` when escaping `\#`
         pattern = pattern.sub(/\A\\#/, '#')

ee/spec/features/projects/merge_requests/user_edits_merge_request_spec.rb

@@ -32,6 +32,8 @@ describe 'Projects > Merge Requests > User edits a merge request' do
     let(:ruby_owner) { create(:user, username: 'ruby-owner') }
 
     before do
+      stub_feature_flags(sectional_codeowners: false)
+
       project.add_developer(ruby_owner)
       project.repository.create_file(user, 'ruby.rb', '# a ruby file',
                                      message: 'Add a ruby file',

ee/spec/features/projects/view_blob_with_code_owners_spec.rb

@@ -22,6 +22,7 @@ describe 'File blob > Code owners', :js do
     context 'when the feature is available' do
       before do
         stub_licensed_features(code_owners: true)
+        stub_feature_flags(sectional_codeowners: false)
       end
 
       it 'shows the code owners related to a file' do

ee/spec/lib/gitlab/checks/diff_check_spec.rb

@@ -56,6 +56,10 @@ describe Gitlab::Checks::DiffCheck do
         end
 
         context 'and the user is not listed as a codeowner' do
+          before do
+            stub_feature_flags(sectional_codeowners: false)
+          end
+
           it "returns an error message" do
             expect { diff_check.validate! }.to raise_error do |error|
               expect(error).to be_a(Gitlab::GitAccess::ForbiddenError)
@@ -81,6 +85,10 @@ describe Gitlab::Checks::DiffCheck do
         end
 
         context "and the user is not listed as a code owner" do
+          before do
+            stub_feature_flags(sectional_codeowners: false)
+          end
+
           it "returns an error message" do
             expect(validation_result).to include("Pushes to protected branches")
           end

ee/spec/lib/gitlab/code_owners/file_spec.rb

@@ -14,6 +14,10 @@ describe Gitlab::CodeOwners::File do
 
   subject(:file) { described_class.new(blob) }
 
+  before do
+    stub_feature_flags(sectional_codeowners: false)
+  end
+
   describe '#parsed_data' do
     def owner_line(pattern)
       file.parsed_data[pattern].owner_line
@@ -32,6 +36,18 @@ describe Gitlab::CodeOwners::File do
     it 'allows usernames and emails' do
       expect(owner_line('/**/LICENSE')).to include('legal', 'janedoe@gitlab.com')
     end
+
+    context "when feature flag `:sectional_codeowners` is enabled" do
+      before do
+        stub_feature_flags(sectional_codeowners: true)
+      end
+
+      it "passes the call to #get_parsed_sectional_data" do
+        expect(file).to receive(:get_parsed_sectional_data).and_return({})
+
+        expect(file.parsed_data).to be_empty
+      end
+    end
   end
 
   describe '#empty?' do

ee/spec/lib/gitlab/code_owners/loader_spec.rb

@@ -39,6 +39,10 @@ describe Gitlab::CodeOwners::Loader do
     let(:expected_entry) { Gitlab::CodeOwners::Entry.new('docs/CODEOWNERS', '@owner-1 owner2@gitlab.org @owner-3 @documentation-owner') }
     let(:first_entry) { loader.entries.first }
 
+    before do
+      stub_feature_flags(sectional_codeowners: false)
+    end
+
     it 'returns entries for the matched line' do
       expect(loader.entries).to contain_exactly(expected_entry)
     end
@@ -121,6 +125,10 @@ describe Gitlab::CodeOwners::Loader do
   end
 
   describe '#members' do
+    before do
+      stub_feature_flags(sectional_codeowners: false)
+    end
+
     it 'returns users mentioned for the passed path' do
       expect(loader.members).to contain_exactly(owner_1, email_owner, documentation_owner)
     end
@@ -143,6 +151,10 @@ describe Gitlab::CodeOwners::Loader do
   end
 
   describe '#empty_code_owners?' do
+    before do
+      stub_feature_flags(sectional_codeowners: false)
+    end
+
     context 'when file does not exist' do
       let(:codeowner_blob) { nil }
 

ee/spec/lib/gitlab/code_owners_spec.rb

@@ -26,6 +26,7 @@ describe Gitlab::CodeOwners do
     context 'when the feature is available' do
       before do
         stub_licensed_features(code_owners: true)
+        stub_feature_flags(sectional_codeowners: false)
       end
 
       it 'returns users for a blob' do
@@ -59,6 +60,7 @@ describe Gitlab::CodeOwners do
 
     before do
       stub_licensed_features(code_owners: true)
+      stub_feature_flags(sectional_codeowners: false)
     end
 
     it "return equivalent results" do
@@ -89,6 +91,7 @@ describe Gitlab::CodeOwners do
     context 'when the feature is available' do
       before do
         stub_licensed_features(code_owners: true)
+        stub_feature_flags(sectional_codeowners: false)
       end
 
       it 'returns owners for merge request' do