Index: gitlab-shell/lib/gitlab_init.rb
===================================================================
--- gitlab-shell.orig/lib/gitlab_init.rb
+++ gitlab-shell/lib/gitlab_init.rb
@@ -1,3 +1,7 @@
-ROOT_PATH = File.expand_path(File.join(File.dirname(__FILE__), ".."))
+if ENV['SHELL_ROOT_PATH'].nil? || ENV['SHELL_ROOT_PATH'].empty?
+  ROOT_PATH = '/usr/share/gitlab-shell'
+else
+  ROOT_PATH = ENV['SHELL_ROOT_PATH']
+end
 
 require_relative 'gitlab_config'