Update projects in gitolite after namespace moved. Added rake task to cleanup garbage from gitolite

app/models/namespace.rb

@@ -27,10 +27,13 @@ class Namespace < ActiveRecord::Base
   after_create :ensure_dir_exist
   after_update :move_dir
+  after_commit :update_gitolite, on: :update, if: :require_update_gitolite
   after_destroy :rm_dir
   scope :root, where('type IS NULL')
+  attr_accessor :require_update_gitolite
+
   def self.search query
     where("name LIKE :query OR path LIKE :query", query: "%#{query}%")
   end
@@ -62,10 +65,18 @@ class Namespace < ActiveRecord::Base
       if system("mv #{old_path} #{new_path}")
         send_update_instructions
+        @require_update_gitolite = true
+      else
+        raise "Namespace move error #{old_path} #{new_path}"
       end
     end
   end
+  def update_gitolite
+    @require_update_gitolite = false
+    projects.each(&:update_repository)
+  end
+
   def rm_dir
     dir_path = File.join(Gitlab.config.gitolite.repos_path, path)
     system("rm -rf #{dir_path}")

app/roles/namespaced_project.rb

@@ -24,7 +24,7 @@ module NamespacedProject
       save!
     end
   rescue Gitlab::ProjectMover::ProjectMoveError => ex
-    raise TransferError.new(ex.message)
+    raise Project::TransferError.new(ex.message)
   end
   def name_with_namespace

lib/tasks/gitlab/gitolite_rebuild.rake

@@ -20,5 +20,38 @@ namespace :gitlab do
       end
       puts "Done with keys"
     end
+
+    desc "GITLAB | Cleanup gitolite config"
+    task :cleanup => :environment  do
+      warn_user_is_not_gitlab
+
+      real_repos = Project.all.map(&:path_with_namespace)
+      real_repos << "gitolite-admin"
+      real_repos << "@all"
+
+      remove_flag = ENV['REMOVE']
+
+      puts "Looking for repositories to remove... "
+      Gitlab::GitoliteConfig.new.apply do |config|
+        all_repos = []
+        garbage_repos = []
+
+        all_repos = config.conf.repos.keys
+        garbage_repos = all_repos - real_repos
+
+        garbage_repos.each do |repo_name|
+          if remove_flag
+            config.conf.rm_repo(repo_name)
+            print "to remove...".red
+          end
+
+          puts repo_name.red
+        end
+      end
+
+      unless remove_flag
+        puts "To cleanup repositories run this command with REMOVE=true".yellow
+      end
+    end
   end
 end