import os

import pwd

from logilab.common.pytest import PyTester

def getlogin():

    """avoid usinng os.getlogin() because of strange tty / stdin problems

    (man 3 getlogin)

    Another solution would be to use $LOGNAME, $USER or $USERNAME

    """

    return pwd.getpwuid(os.getuid())[0]

def update_parser(parser):

    login = getlogin()

    parser.add_option('-r', '--rebuild-database', dest='rebuild_db',

                      default=False, action="store_true",

                      help="remove tmpdb and rebuilds the test database")

    parser.add_option('-u', '--dbuser', dest='dbuser', action='store',

                      default=login, help="database user")

    parser.add_option('-w', '--dbpassword', dest='dbpassword', action='store',

                      default=login, help="database name")

    parser.add_option('-n', '--dbname', dest='dbname', action='store',

                      default=None, help="database name")

    parser.add_option('--euser', dest='euser', action='store',

                      default=login, help="esuer name")

    parser.add_option('--epassword', dest='epassword', action='store',

                      default=login, help="euser's password' name")

    return parser

class CustomPyTester(PyTester):

    def __init__(self, cvg, options):

        super(CustomPyTester, self).__init__(cvg, options)

        if options.rebuild_db:

            os.unlink('tmpdb')

            os.unlink('tmpdb-template')