def save(self):
""" Save the current override-only configuration to the override config
file
:raises TypeError: if mode != MODE_OVERRIDE_ONLY
"""
if self._mode != self.MODE_OVERRIDE_ONLY:
raise TypeError(
"Config=%s was not loaded in MODE_OVERRIDE_ONLY; mode=%s" %
(self._configName, self._mode))
configOverrideDir = self._getConfigOverrideDir()
makeDirectoryFromAbsolutePath(configOverrideDir)
overrideConfigPath = os.path.join(configOverrideDir, self._configName)
# NOTE: we open with os.O_RDWR | os.O_CREAT so that we can acquire the
# file lock before altering contents of the file
with os.fdopen(
os.open(overrideConfigPath, os.O_RDWR | os.O_CREAT, 0644),
"w") as fileObj:
with file_lock.ExclusiveFileLock(fileObj):
self.write(fileObj)
fileObj.flush()
fileObj.truncate()
def testExclusiveLock(self):
flock = file_lock.ExclusiveFileLock(self._tempFileID)
self.assertEqual(type(flock), file_lock._FileLock)