Enable git-annex validate access

lib/gitlab_projects.rb

@@ -238,4 +238,9 @@ class GitlabProjects
     $logger.info "Update head in project #{project_name} to <#{new_head}>."
     true
   end
+
+  def git_init_annex
+    cmd = %W(git --git-dir=#{full_path} annex init "GitLab")
+    system(*cmd)
+  end
 end

lib/gitlab_shell.rb

@@ -20,12 +20,11 @@ class GitlabShell
 
       if git_cmds.include?(@git_cmd)
         ENV['GL_ID'] = @key_id
-        ENV['HOME'] ='/var/opt/gitlab'
 
         # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
         # TODO: Fix validation for git-annex-shell !!!!
         # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-        if true #validate_access
+        if validate_access
           process_cmd
         else
           message = "gitlab-shell: Access denied for git command <#{@origin_cmd}> by #{log_username}."