require 'fileutils' require 'spec_helper' describe GitGarbageCollectWorker do let(:project) { create(:project, :repository) } let(:shell) { Gitlab::Shell.new } subject { described_class.new } describe "#perform" do it "flushes ref caches when the task is 'gc'" do expect(subject).to receive(:command).with(:gc).and_return([:the, :command]) expect(Gitlab::Popen).to receive(:popen). with([:the, :command], project.repository.path_to_repo).and_return(["", 0]) expect_any_instance_of(Repository).to receive(:after_create_branch).and_call_original expect_any_instance_of(Repository).to receive(:branch_names).and_call_original expect_any_instance_of(Repository).to receive(:branch_count).and_call_original expect_any_instance_of(Repository).to receive(:has_visible_content?).and_call_original subject.perform(project.id) end shared_examples 'gc tasks' do before { allow(subject).to receive(:bitmaps_enabled?).and_return(bitmaps_enabled) } it 'incremental repack adds a new packfile' do create_objects(project) before_packs = packs(project) expect(before_packs.count).to be >= 1 subject.perform(project.id, 'incremental_repack') after_packs = packs(project) # Exactly one new pack should have been created expect(after_packs.count).to eq(before_packs.count + 1) # Previously existing packs are still around expect(before_packs & after_packs).to eq(before_packs) end it 'full repack consolidates into 1 packfile' do create_objects(project) subject.perform(project.id, 'incremental_repack') before_packs = packs(project) expect(before_packs.count).to be >= 2 subject.perform(project.id, 'full_repack') after_packs = packs(project) expect(after_packs.count).to eq(1) # Previously existing packs should be gone now expect(after_packs - before_packs).to eq(after_packs) expect(File.exist?(bitmap_path(after_packs.first))).to eq(bitmaps_enabled) end it 'gc consolidates into 1 packfile and updates packed-refs' do create_objects(project) before_packs = packs(project) before_packed_refs = packed_refs(project) expect(before_packs.count).to be >= 1 subject.perform(project.id, 'gc') after_packed_refs = packed_refs(project) after_packs = packs(project) expect(after_packs.count).to eq(1) # Previously existing packs should be gone now expect(after_packs - before_packs).to eq(after_packs) # The packed-refs file should have been updated during 'git gc' expect(before_packed_refs).not_to eq(after_packed_refs) expect(File.exist?(bitmap_path(after_packs.first))).to eq(bitmaps_enabled) end end context 'with bitmaps enabled' do let(:bitmaps_enabled) { true } include_examples 'gc tasks' end context 'with bitmaps disabled' do let(:bitmaps_enabled) { false } include_examples 'gc tasks' end end # Create a new commit on a random new branch def create_objects(project) rugged = project.repository.rugged old_commit = rugged.branches.first.target new_commit_sha = Rugged::Commit.create( rugged, message: "hello world #{SecureRandom.hex(6)}", author: Gitlab::Git.committer_hash(email: 'foo@bar', name: 'baz'), committer: Gitlab::Git.committer_hash(email: 'foo@bar', name: 'baz'), tree: old_commit.tree, parents: [old_commit] ) GitOperationService.new(nil, project.repository).send( :update_ref, "refs/heads/#{SecureRandom.hex(6)}", new_commit_sha, Gitlab::Git::BLANK_SHA ) end def packs(project) Dir["#{project.repository.path_to_repo}/objects/pack/*.pack"] end def packed_refs(project) path = "#{project.repository.path_to_repo}/packed-refs" FileUtils.touch(path) File.read(path) end def bitmap_path(pack) pack.sub(/\.pack\z/, '.bitmap') end end