elif opt == '--time':
opt_time = val
elif opt == '--skip-files':
skip_files = True
elif opt == '--skip-database':
skip_database = True
elif opt == '--skip-packages':
skip_packages = True
elif opt == '--no-rollback':
no_rollback = True
elif opt == '--silent':
silent = True
elif opt == '--force':
opt_force = True
elif opt == '--logfile':
if not is_writeable(val):
fatal("logfile '%s' is not writeable" % val)
opt_logfile = val
elif opt == '--noninteractive':
interactive = False
elif opt == '--restore-cache-size':
conf.restore_cache_size = val
elif opt == '--restore-cache-dir':
conf.restore_cache_dir = val
elif opt == '--debug':
opt_debug = True
elif opt == '--time':
opt_time = val
elif opt == '--skip-files':
skip_files = True
elif opt == '--skip-database':
skip_database = True
elif opt == '--skip-packages':
skip_packages = True
elif opt == '--no-rollback':
no_rollback = True
elif opt == '--silent':
silent = True
elif opt == '--force':
opt_force = True
elif opt == '--logfile':
if not is_writeable(val):
fatal("logfile '%s' is not writeable" % val)
opt_logfile = val
elif opt == '--noninteractive':
interactive = False
elif opt == '--restore-cache-size':
conf.restore_cache_size = val
elif opt == '--restore-cache-dir':
conf.restore_cache_dir = val
elif opt == '--debug':
opt_debug = True
def check_volume_data(self):
# Before we begin (and before each task),
# we need to find any and all USB keys
# and any and all training-data files on them.
_logger.debug(utils.get_volume_paths())
self.volume_data = []
for path in utils.get_volume_paths():
os.path.basename(path)
self.volume_data.append(
{'basename': os.path.basename(path),
'files': utils.look_for_training_data(path),
'sugar_path': os.path.join(self.get_activity_root(), 'data'),
'usb_path': path})
_logger.debug(self.volume_data[-1])
# (1) We require a USB key
if len(self.volume_data) == 0:
_logger.error('NO USB KEY INSERTED')
alert = ConfirmationAlert()
alert.props.title = _('USB key required')
alert.props.msg = _('You must insert a USB key before launching '
'this activity.')
alert.connect('response', self._remove_alert_cb)
self.add_alert(alert)
self._load_intro_graphics(file_name='insert-usb.html')
return False
# (2) Only one USB key
if len(self.volume_data) > 1:
_logger.error('MULTIPLE USB KEYS INSERTED')
alert = ConfirmationAlert()
alert.props.title = _('Multiple USB keys found')
alert.props.msg = _('Only one USB key must be inserted while '
'running this program.\nPlease remove any '
'additional USB keys before launching '
'this activity.')
alert.connect('response', self._remove_alert_cb)
self.add_alert(alert)
self._load_intro_graphics(message=alert.props.msg)
return False
volume = self.volume_data[0]
# (3) At least 10MB of free space
if utils.is_full(volume['usb_path'],
required=_MINIMUM_SPACE):
_logger.error('USB IS FULL')
alert = ConfirmationAlert()
alert.props.title = _('USB key is full')
alert.props.msg = _('No room on USB')
alert.connect('response', self._close_alert_cb)
self.add_alert(alert)
self._load_intro_graphics(message=alert.props.msg)
return False
# (4) File is read/write
if not utils.is_writeable(volume['usb_path']):
_logger.error('CANNOT WRITE TO USB')
alert = ConfirmationAlert()
alert.props.title = _('Cannot write to USB')
alert.props.msg = _('USB key seems to be read-only.')
alert.connect('response', self._close_alert_cb)
self.add_alert(alert)
self._load_intro_graphics(message=alert.props.msg)
return False
# (5) Only one set of training data per USB key
# We expect UIDs to formated as XXXX-XXXX
# We need to make sure we have proper UIDs associated with
# the USBs and the files on them match the UID.
# (a) If there are no files, we will assign the UID based on the
# volume path;
# (b) If there is one file with a valid UID, we use that UID;
if len(volume['files']) == 0:
volume['uid'] = 'training-data-%s' % \
utils.format_volume_name(volume['basename'])
_logger.debug('No training data found. Using UID %s' %
volume['uid'])
return True
elif len(volume['files']) == 1:
volume['uid'] = 'training-data-%s' % volume['files'][0][-9:]
_logger.debug('Training data found. Using UID %s' %
volume['uid'])
return True
else:
_logger.error('MULTIPLE TRAINING-DATA FILES FOUND')
alert = ConfirmationAlert()
alert.props.title = _('Multiple training-data files found.')
alert.props.msg = _('There can only be one set of training '
'data per USB key.')
alert.connect('response', self._close_alert_cb)
self.add_alert(alert)
self._load_intro_graphics(message=alert.props.msg)
return False
