Create a Wiki Repository's raw_repository properly

app/models/project_wiki.rb

@@ -150,7 +150,7 @@ class ProjectWiki
   end
 
   def repository
-    @repository ||= Repository.new(full_path, @project, disk_path: disk_path)
+    @repository ||= Repository.new(full_path, @project, disk_path: disk_path, is_wiki: true)
   end
 
   def default_branch

app/models/repository.rb

@@ -21,7 +21,7 @@ class Repository
   include RepositoryMirroring
   prepend EE::Repository
 
-  attr_accessor :full_path, :disk_path, :project
+  attr_accessor :full_path, :disk_path, :project, :is_wiki
 
   delegate :ref_name_for_sha, to: :raw_repository
 
@@ -79,11 +79,12 @@ class Repository
     end
   end
 
-  def initialize(full_path, project, disk_path: nil)
+  def initialize(full_path, project, disk_path: nil, is_wiki: false)
     @full_path = full_path
     @disk_path = disk_path || full_path
     @project = project
     @commit_cache = {}
+    @is_wiki = is_wiki
   end
 
   def ==(other)
@@ -1202,7 +1203,7 @@ class Repository
   end
 
   def initialize_raw_repository
-    Gitlab::Git::Repository.new(project.repository_storage, disk_path + '.git', Gitlab::GlRepository.gl_repository(project, false))
+    Gitlab::Git::Repository.new(project.repository_storage, disk_path + '.git', Gitlab::GlRepository.gl_repository(project, is_wiki))
   end
 
   def find_commits_by_message_by_shelling_out(query, ref, path, limit, offset)

spec/models/repository_spec.rb

@@ -2430,4 +2430,24 @@ describe Repository do
       project.commit_by(oid: '1' * 40)
     end
   end
+
+  describe '#raw_repository' do
+    subject { repository.raw_repository }
+
+    it 'returns a Gitlab::Git::Repository representation of the repository' do
+      expect(subject).to be_a(Gitlab::Git::Repository)
+      expect(subject.relative_path).to eq(project.disk_path + '.git')
+      expect(subject.gl_repository).to eq("project-#{project.id}")
+    end
+
+    context 'with a wiki repository' do
+      let(:repository) { project.wiki.repository }
+
+      it 'creates a Gitlab::Git::Repository with the proper attributes' do
+        expect(subject).to be_a(Gitlab::Git::Repository)
+        expect(subject.relative_path).to eq(project.disk_path + '.wiki.git')
+        expect(subject.gl_repository).to eq("wiki-#{project.id}")
+      end
+    end
+  end
 end