def test_should_create_base_dir_if_it_does_not_exist_when_locking(self, mock_open, mock_fcntl, mock_exists, mock_mkdir):
mock_fcntl.LOCK_EX = 'LOCK_EX'
mock_exists.return_value = False
file_handle_mock = Mock()
mock_open.return_value = file_handle_mock
lock()
self.assertEqual(call('shtub'), mock_mkdir.call_args)
def test_should_create_lock(self, mock_open, mock_fcntl):
mock_fcntl.LOCK_EX = 'LOCK_EX'
file_handle_mock = Mock()
mock_open.return_value = file_handle_mock
actual_file_handle = lock()
self.assertEqual(file_handle_mock, actual_file_handle)
self.assertEqual(call('shtub/lock', mode='a'), mock_open.call_args)
self.assertEqual(
call(file_handle_mock, mock_fcntl.LOCK_EX), mock_fcntl.flock.call_args)
def record_execution(execution):
"""
loads the list of recent executions from the EXECUTIONS_FILENAME file,
appends the given execution to the list, then writes the list back to
the file again. To assure only one process is reading and writing the
file a file lock is used.
"""
lock_file_handle = lock()
executions = []
if os.path.exists(EXECUTIONS_FILENAME):
executions = deserialize_executions(EXECUTIONS_FILENAME)
executions.append(execution)
serialize_as_dictionaries(EXECUTIONS_FILENAME, executions)
logging.info('Recorded %s executions.', len(executions))
unlock(lock_file_handle)
def record_execution(execution):
"""
loads the list of recent executions from the EXECUTIONS_FILENAME file,
appends the given execution to the list, then writes the list back to
the file again. To assure only one process is reading and writing the
file a file lock is used.
"""
lock_file_handle = lock()
executions = []
if os.path.exists(EXECUTIONS_FILENAME):
executions = deserialize_executions(EXECUTIONS_FILENAME)
executions.append(execution)
serialize_as_dictionaries(EXECUTIONS_FILENAME, executions)
logging.info('Recorded %s executions.', len(executions))
unlock(lock_file_handle)
def handle_execution():
"""
creates the base directory, initializes the logging and will read in
the arguments and input from stdin to create a new execution object.
"""
if not os.path.exists(BASEDIR):
os.mkdir(BASEDIR)
global lock_handle
lock_handle = lock(SERIALIZATION_LOCK_FILENAME)
logging_format = '%(asctime)s %(levelname)5s [%(name)s] process[%(process)d] thread[%(thread)d] - %(message)s'
logging.basicConfig(filename=LOG_FILENAME,
level=logging.INFO,
format=logging_format)
command = os.path.basename(sys.argv[0])
arguments = sys.argv[1:]
stdin = read_stdin()
command_input = CommandInput(command, arguments, stdin)
dispatch(command_input)
def handle_execution():
"""
creates the base directory, initializes the logging and will read in
the arguments and input from stdin to create a new execution object.
"""
if not os.path.exists(BASEDIR):
os.mkdir(BASEDIR)
global lock_handle
lock_handle = lock(SERIALIZATION_LOCK_FILENAME)
logging_format = '%(asctime)s %(levelname)5s [%(name)s] process[%(process)d] thread[%(thread)d] - %(message)s'
logging.basicConfig(filename=LOG_FILENAME,
level=logging.INFO,
format=logging_format)
command = os.path.basename(sys.argv[0])
arguments = sys.argv[1:]
stdin = read_stdin()
command_input = CommandInput(command, arguments, stdin)
dispatch(command_input)