def append_entry(cls, config_reader, filepath, oldbinsha, newbinsha, message):
"""Append a new log entry to the revlog at filepath.
:param config_reader: configuration reader of the repository - used to obtain
user information. May be None
:param filepath: full path to the log file
:param oldbinsha: binary sha of the previous commit
:param newbinsha: binary sha of the current commit
:param message: message describing the change to the reference
:param write: If True, the changes will be written right away. Otherwise
the change will not be written
:return: RefLogEntry objects which was appended to the log
:note: As we are append-only, concurrent access is not a problem as we
do not interfere with readers."""
if len(oldbinsha) != 20 or len(newbinsha) != 20:
raise ValueError("Shas need to be given in binary format")
# END handle sha type
assure_directory_exists(filepath, is_file=True)
entry = RefLogEntry((bin_to_hex(oldbinsha), bin_to_hex(newbinsha), Actor.committer(
config_reader), (int(time.time()), time.altzone), message))
lf = LockFile(filepath)
lf._obtain_lock_or_raise()
fd = open(filepath, 'a')
try:
fd.write(repr(entry))
finally:
fd.close()
lf._release_lock()
# END handle write operation
return entry
def append_entry(cls, config_reader, filepath, oldbinsha, newbinsha,
message):
"""Append a new log entry to the revlog at filepath.
:param config_reader: configuration reader of the repository - used to obtain
user information. May be None
:param filepath: full path to the log file
:param oldbinsha: binary sha of the previous commit
:param newbinsha: binary sha of the current commit
:param message: message describing the change to the reference
:param write: If True, the changes will be written right away. Otherwise
the change will not be written
:return: RefLogEntry objects which was appended to the log
:note: As we are append-only, concurrent access is not a problem as we
do not interfere with readers."""
if len(oldbinsha) != 20 or len(newbinsha) != 20:
raise ValueError("Shas need to be given in binary format")
#END handle sha type
assure_directory_exists(filepath, is_file=True)
entry = RefLogEntry((bin_to_hex(oldbinsha), bin_to_hex(newbinsha),
Actor.committer(config_reader),
(int(time.time()), time.altzone), message))
lf = LockFile(filepath)
lf._obtain_lock_or_raise()
fd = open(filepath, 'a')
try:
fd.write(repr(entry))
finally:
fd.close()
lf._release_lock()
#END handle write operation
return entry
def append_entry(cls,
config_reader: Union[Actor, 'GitConfigParser',
'SectionConstraint', None],
filepath: PathLike,
oldbinsha: bytes,
newbinsha: bytes,
message: str,
write: bool = True) -> 'RefLogEntry':
"""Append a new log entry to the revlog at filepath.
:param config_reader: configuration reader of the repository - used to obtain
user information. May also be an Actor instance identifying the committer directly or None.
:param filepath: full path to the log file
:param oldbinsha: binary sha of the previous commit
:param newbinsha: binary sha of the current commit
:param message: message describing the change to the reference
:param write: If True, the changes will be written right away. Otherwise
the change will not be written
:return: RefLogEntry objects which was appended to the log
:note: As we are append-only, concurrent access is not a problem as we
do not interfere with readers."""
if len(oldbinsha) != 20 or len(newbinsha) != 20:
raise ValueError("Shas need to be given in binary format")
# END handle sha type
assure_directory_exists(filepath, is_file=True)
first_line = message.split('\n')[0]
if isinstance(config_reader, Actor):
committer = config_reader # mypy thinks this is Actor | Gitconfigparser, but why?
else:
committer = Actor.committer(config_reader)
entry = RefLogEntry((bin_to_hex(oldbinsha).decode('ascii'),
bin_to_hex(newbinsha).decode('ascii'), committer,
(int(_time.time()), _time.altzone), first_line))
if write:
lf = LockFile(filepath)
lf._obtain_lock_or_raise()
fd = open(filepath, 'ab')
try:
fd.write(entry.format().encode(defenc))
finally:
fd.close()
lf._release_lock()
# END handle write operation
return entry
def test_lock_file(self):
my_file = tempfile.mktemp()
lock_file = LockFile(my_file)
assert not lock_file._has_lock()
# release lock we don't have - fine
lock_file._release_lock()
# get lock
lock_file._obtain_lock_or_raise()
assert lock_file._has_lock()
# concurrent access
other_lock_file = LockFile(my_file)
assert not other_lock_file._has_lock()
self.failUnlessRaises(IOError, other_lock_file._obtain_lock_or_raise)
lock_file._release_lock()
assert not lock_file._has_lock()
other_lock_file._obtain_lock_or_raise()
self.failUnlessRaises(IOError, lock_file._obtain_lock_or_raise)
# auto-release on destruction
del (other_lock_file)
lock_file._obtain_lock_or_raise()
lock_file._release_lock()
def test_lock_file(self):
my_file = tempfile.mktemp()
lock_file = LockFile(my_file)
assert not lock_file._has_lock()
# release lock we don't have - fine
lock_file._release_lock()
# get lock
lock_file._obtain_lock_or_raise()
assert lock_file._has_lock()
# concurrent access
other_lock_file = LockFile(my_file)
assert not other_lock_file._has_lock()
self.failUnlessRaises(IOError, other_lock_file._obtain_lock_or_raise)
lock_file._release_lock()
assert not lock_file._has_lock()
other_lock_file._obtain_lock_or_raise()
self.failUnlessRaises(IOError, lock_file._obtain_lock_or_raise)
# auto-release on destruction
del(other_lock_file)
lock_file._obtain_lock_or_raise()
lock_file._release_lock()
