def lock(lockFile):
"""
Creates a lock file if one is not present. If a lock file already exists,
an exception will be thrown.
"""
if os.path.exists(lockFile):
with open(lockFile) as lock:
pid = lock.readline()
if not re.match(r"^[0-9]+$", pid):
os.remove(lockFile)
elif _isPidRunning(pid):
raise Exception("A backup is currently running [{}]".format(pid))
else:
os.remove(lockFile)
backup.createLockFile(lockFile)
def test_removeLockFile(self):
lockFile = join(self._backupHome, "test.lock")
backup.createLockFile(lockFile)
backup.removeLockFile(lockFile)
self.assertFalse(os.path.exists(lockFile))