# vim: tabstop=4 shiftwidth=4 softtabstop=4


class ProcessExecutionError(IOError):

    message_tmpl = ('%(description)s\nCommand: %(cmd)s\n'
                    'Exit code: %(exit_code)s\nStdout: %(stdout)r\n'
                    'Stderr: %(stderr)r')

    def __init__(self, stdout=None, stderr=None,
                 exit_code=None, cmd=None,
                 description=None, reason=None):
        if not cmd:
            self.cmd = '-'
        else:
            self.cmd = cmd

        if not description:
            self.description = 'Unexpected error while running command.'
        else:
            self.description = description

        if not isinstance(exit_code, (long, int)):
            self.exit_code = '-'
        else:
            self.exit_code = exit_code

        if not stderr:
            self.stderr = ''
        else:
            self.stderr = stderr

        if not stdout:
            self.stdout = ''
        else:
            self.stdout = stdout

        message = self.message_tmpl % {
            'description': self.description,
            'cmd': self.cmd,
            'exit_code': self.exit_code,
            'stdout': self.stdout,
            'stderr': self.stderr,
        }
        IOError.__init__(self, message)
        self.reason = reason


class MountFailedError(Exception):
    pass


class StackExceeded(Exception):
    pass


class RecursiveInclude(Exception):
    pass


class DataSourceNotFoundException(Exception):
    pass