require 'yaml' module Backup class Database attr_reader :config, :db_file_name def initialize @config = YAML.load_file(File.join(Rails.root,'config','database.yml'))[Rails.env] @db_file_name = File.join(Gitlab.config.backup.path, 'db', 'database.sql.gz') end def dump FileUtils.mkdir_p(File.dirname(db_file_name)) FileUtils.rm_f(db_file_name) compress_rd, compress_wr = IO.pipe compress_pid = spawn(*%W(gzip -1 -c), in: compress_rd, out: [db_file_name, 'w', 0600]) compress_rd.close dump_pid = case config["adapter"] when /^mysql/ then $progress.print "Dumping MySQL database #{config['database']} ... " # Workaround warnings from MySQL 5.6 about passwords on cmd line ENV['MYSQL_PWD'] = config["password"].to_s if config["password"] spawn('mysqldump', *mysql_args, config['database'], out: compress_wr) when "postgresql" then $progress.print "Dumping PostgreSQL database #{config['database']} ... " pg_env pgsql_args = ["--clean"] # Pass '--clean' to include 'DROP TABLE' statements in the DB dump. if Gitlab.config.backup.pg_schema pgsql_args << "-n" pgsql_args << Gitlab.config.backup.pg_schema end spawn('pg_dump', *pgsql_args, config['database'], out: compress_wr) end compress_wr.close success = [compress_pid, dump_pid].all? { |pid| Process.waitpid(pid); $?.success? } report_success(success) abort 'Backup failed' unless success end def restore decompress_rd, decompress_wr = IO.pipe decompress_pid = spawn(*%W(gzip -cd), out: decompress_wr, in: db_file_name) decompress_wr.close restore_pid = case config["adapter"] when /^mysql/ then $progress.print "Restoring MySQL database #{config['database']} ... " # Workaround warnings from MySQL 5.6 about passwords on cmd line ENV['MYSQL_PWD'] = config["password"].to_s if config["password"] spawn('mysql', *mysql_args, config['database'], in: decompress_rd) when "postgresql" then $progress.print "Restoring PostgreSQL database #{config['database']} ... " pg_env spawn('psql', config['database'], in: decompress_rd) end decompress_rd.close success = [decompress_pid, restore_pid].all? { |pid| Process.waitpid(pid); $?.success? } report_success(success) abort 'Restore failed' unless success end protected def mysql_args args = { 'host' => '--host', 'port' => '--port', 'socket' => '--socket', 'username' => '--user', 'encoding' => '--default-character-set' } args.map { |opt, arg| "#{arg}=#{config[opt]}" if config[opt] }.compact 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 def report_success(success) if success $progress.puts '[DONE]'.green else $progress.puts '[FAILED]'.red end end end end