1 files changed, 17 insertions, 0 deletions
diff --git a/app/models/concerns/repository_mirroring.rb b/app/models/concerns/repository_mirroring.rb
new file mode 100644
index 00000000000..fed336c29d6
--- /dev/null
+++ b/app/models/concerns/repository_mirroring.rb
@@ -0,0 +1,17 @@
+module RepositoryMirroring
+  def set_remote_as_mirror(name)
+    config = raw_repository.rugged.config
+
+    # This is used to define repository as equivalent as "git clone --mirror"
+    config["remote.#{name}.fetch"] = 'refs/*:refs/*'
+    config["remote.#{name}.mirror"] = true
+    config["remote.#{name}.prune"] = true
+  end
+
+  def fetch_mirror(remote, url)
+    add_remote(remote, url)
+    set_remote_as_mirror(remote)
+    fetch_remote(remote, forced: true)
+    remove_remote(remote)
+  end
+end