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# Copyright (C) 2013-2014 Canonical Ltd.
# Author: Barry Warsaw <barry@ubuntu.com>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 3 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""Device type calculation."""
__all__ = [
'SystemProperty',
]
import logging
from subprocess import CalledProcessError, check_output
class BaseDevice:
"""Common device calculation actions."""
def get_device(self): # pragma: no cover
"""Subclasses must override this."""
raise NotImplementedError
class SystemProperty(BaseDevice):
"""Get the device type through system properties."""
def get_device(self):
log = logging.getLogger('systemimage')
try:
stdout = check_output(
'getprop ro.product.device'.split(), universal_newlines=True)
except CalledProcessError as error:
log.exception('getprop exit status: {}'.format(error.returncode))
return '?'
except FileNotFoundError as error:
log.exception('getprop command not found')
return '?'
return stdout.strip()
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