Backup LFS objects same as any upload.

doc/raketasks/backup_restore.md

@@ -29,7 +29,7 @@ sudo -u git -H bundle exec rake gitlab:backup:create RAILS_ENV=production
 ```
 
 Also you can choose what should be backed up by adding environment variable SKIP. Available options: db,
-uploads (attachments), repositories, builds(CI build output logs), artifacts (CI build artifacts).
+uploads (attachments), repositories, builds(CI build output logs), artifacts (CI build artifacts), lfs (LFS objects).
 Use a comma to specify several options at the same time.
 
 ```

lib/backup/lfs.rb

+require 'backup/files'
+
+module Backup
+  class Lfs < Files
+    def initialize
+      super('lfs', Settings.lfs.storage_path)
+    end
+
+    def create_files_dir
+      Dir.mkdir(app_files_dir, 0700)
+    end
+  end
+end

lib/backup/manager.rb

@@ -154,7 +154,7 @@ module Backup
     end
 
     def archives_to_backup
-      %w{uploads builds artifacts}.map{ |name| (name + ".tar.gz") unless skipped?(name) }.compact
+      %w{uploads builds artifacts lfs}.map{ |name| (name + ".tar.gz") unless skipped?(name) }.compact
     end
 
     def folders_to_backup

lib/tasks/gitlab/backup.rake

@@ -13,6 +13,7 @@ namespace :gitlab do
       Rake::Task["gitlab:backup:uploads:create"].invoke
       Rake::Task["gitlab:backup:builds:create"].invoke
       Rake::Task["gitlab:backup:artifacts:create"].invoke
+      Rake::Task["gitlab:backup:lfs:create"].invoke
 
       backup = Backup::Manager.new
       backup.pack
@@ -34,6 +35,7 @@ namespace :gitlab do
       Rake::Task["gitlab:backup:uploads:restore"].invoke unless backup.skipped?("uploads")
       Rake::Task["gitlab:backup:builds:restore"].invoke unless backup.skipped?("builds")
       Rake::Task["gitlab:backup:artifacts:restore"].invoke unless backup.skipped?("artifacts")
+      Rake::Task["gitlab:backup:lfs:restore"].invoke unless backup.skipped?("lfs")
       Rake::Task["gitlab:shell:setup"].invoke
 
       backup.cleanup
@@ -134,6 +136,25 @@ namespace :gitlab do
       end
     end
 
+    namespace :lfs do
+      task create: :environment do
+        $progress.puts "Dumping lfs objects ... ".blue
+
+        if ENV["SKIP"] && ENV["SKIP"].include?("lfs")
+          $progress.puts "[SKIPPED]".cyan
+        else
+          Backup::Lfs.new.dump
+          $progress.puts "done".green
+        end
+      end
+
+      task restore: :environment do
+        $progress.puts "Restoring lfs objects ... ".blue
+        Backup::Lfs.new.restore
+        $progress.puts "done".green
+      end
+    end
+
     def configure_cron_mode
       if ENV['CRON']
         # We need an object we can say 'puts' and 'print' to; let's use a