dump

in lib/backup/database.rb [20:48]

• 24 lines of code
• 7 McCabe index (conditional complexity)

    def dump(mysql_to_postgresql=false)
      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']} ... "
        args = mysql_args
        args << '--compatible=postgresql' if mysql_to_postgresql
        spawn('mysqldump', *args, config['database'], *TABLES, out: compress_wr)
      when "postgresql" then
        $progress.print "Dumping PostgreSQL database #{config['database']} ... "
        pg_env
        spawn('pg_dump', '--no-owner', '--clean', *TABLES.map { |t| "--table=#{t}" }, 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

      if mysql_to_postgresql && config["adapter"] =~ /^mysql/
        convert_to_postgresql
      end
    end