1 files changed, 56 insertions, 0 deletions
diff --git a/lib/backup.rb b/lib/backup.rb
new file mode 100644
index 00000000000..ad80ab1c7f7
--- /dev/null
+++ b/lib/backup.rb
@@ -0,0 +1,56 @@
+require 'yaml'
+
+class Backup
+  attr_reader :config, :db_dir
+
+  def initialize
+    @config = YAML.load_file(File.join(Rails.root,'config','database.yml'))[Rails.env]
+    @db_dir = File.join(Gitlab.config.backup.path, 'db')
+    FileUtils.mkdir_p(@db_dir) unless Dir.exists?(@db_dir)
+  end
+
+  def backup_db
+    case config["adapter"]
+    when /^mysql/ then
+      system("mysqldump #{mysql_args} #{config['database']} > #{db_file_name}")
+    when "postgresql" then
+      pg_env
+      system("pg_dump #{config['database']} > #{db_file_name}")
+    end
+  end
+
+  def restore_db
+    case config["adapter"]
+    when /^mysql/ then
+      system("mysql #{mysql_args} #{config['database']} < #{db_file_name}")
+    when "postgresql" then
+      pg_env
+      system("pg_restore #{config['database']} #{db_file_name}")
+    end
+  end
+
+  protected
+
+  def db_file_name
+    File.join(db_dir, 'database.sql')
+  end
+
+  def mysql_args
+    args = {
+      'host'      => '--host',
+      'port'      => '--port',
+      'socket'    => '--socket',
+      'username'  => '--user',
+      'encoding'  => '--default-character-set',
+      'password'  => '--password'
+    }
+    args.map { |opt, arg| "#{arg}=#{config[opt]}" if config[opt] }.compact.join(' ')
+  end
+
+  def pg_env
+    ENV['PGUSER']     = config["username"] if config["username"]
+    ENV['PGHOST']     = config["host"] if config["host"]
+    ENV['PGPORT']     = config["port"].to_s if config["port"]
+    ENV['PGPASSWORD'] = config["password"].to_s if config["password"]
+  end
+end