Make Project#ensure_repository force create a repo

In Geo, Project#ensure_repository is used to make sure that a Git repo
is available to be fetched on a secondary. If a project were a fork,
this directory would never be created.

Closes gitlab-org/gitlab-ee#2800

app/models/project.rb

@@ -1073,9 +1073,10 @@ class Project < ActiveRecord::Base
     merge_requests.where(source_project_id: self.id)
   end
 
-  def create_repository
+  def create_repository(force = false)
     # Forked import is handled asynchronously
-    unless forked?
+    return if forked? && !force
+
     if gitlab_shell.add_repository(repository_storage_path, path_with_namespace)
       repository.after_create
       true
@@ -1084,10 +1085,9 @@ class Project < ActiveRecord::Base
       false
     end
   end
-  end
 
   def ensure_repository
-    create_repository unless repository_exists?
+    create_repository(true) unless repository_exists?
   end
 
   def repository_exists?

changelogs/unreleased/sh-allow-force-repo-create.yml

+---
+title: Make Project#ensure_repository force create a repo
+merge_request:
+author:

spec/models/project_spec.rb

@@ -1357,6 +1357,19 @@ describe Project, models: true do
 
       project.ensure_repository
     end
+
+    it 'creates the repository if it is a fork' do
+      expect(project).to receive(:forked?).and_return(true)
+
+      allow(project).to receive(:repository_exists?)
+        .and_return(false)
+
+      expect(shell).to receive(:add_repository)
+        .with(project.repository_storage_path, project.path_with_namespace)
+        .and_return(true)
+
+      project.ensure_repository
+    end
   end
 
   describe '#user_can_push_to_empty_repo?' do