def _set_cache_(self, attr):
if attr == "_packfile_checksum":
self._packfile_checksum = self._data[-40:-20]
elif attr == "_packfile_checksum":
self._packfile_checksum = self._data[-20:]
elif attr == "_data":
# Note: We don't lock the file when reading as we cannot be sure
# that we can actually write to the location - it could be a read-only
# alternate for instance
self._data = file_contents_ro_filepath(self._indexpath)
else:
# now its time to initialize everything - if we are here, someone wants
# to access the fanout table or related properties
# CHECK VERSION
self._version = (self._data[:4] == '\377tOc' and 2) or 1
if self._version == 2:
version_id = unpack_from(">L", self._data, 4)[0]
assert version_id == self._version, "Unsupported index version: %i" % version_id
# END assert version
# SETUP FUNCTIONS
# setup our functions according to the actual version
for fname in ('entry', 'offset', 'sha', 'crc'):
setattr(self, fname, getattr(self, "_%s_v%i" % (fname, self._version)))
# END for each function to initialize
# INITIALIZE DATA
# byte offset is 8 if version is 2, 0 otherwise
self._initialize()
def _set_cache_(self, attr):
if attr == "_packfile_checksum":
self._packfile_checksum = self._data[-40:-20]
elif attr == "_packfile_checksum":
self._packfile_checksum = self._data[-20:]
elif attr == "_data":
# Note: We don't lock the file when reading as we cannot be sure
# that we can actually write to the location - it could be a read-only
# alternate for instance
self._data = file_contents_ro_filepath(self._indexpath)
else:
# now its time to initialize everything - if we are here, someone wants
# to access the fanout table or related properties
# CHECK VERSION
self._version = (self._data[:4] == '\377tOc' and 2) or 1
if self._version == 2:
version_id = unpack_from(">L", self._data, 4)[0]
assert version_id == self._version, "Unsupported index version: %i" % version_id
# END assert version
# SETUP FUNCTIONS
# setup our functions according to the actual version
for fname in ('entry', 'offset', 'sha', 'crc'):
setattr(self, fname,
getattr(self, "_%s_v%i" % (fname, self._version)))
# END for each function to initialize
# INITIALIZE DATA
# byte offset is 8 if version is 2, 0 otherwise
self._initialize()
def _set_cache_(self, attr):
if attr == '_data':
self._data = file_contents_ro_filepath(self._packpath)
# read the header information
type_id, self._version, self._size = unpack_from(">4sLL", self._data, 0)
# TODO: figure out whether we should better keep the lock, or maybe
# add a .keep file instead ?
else: # must be '_size' or '_version'
# read header info - we do that just with a file stream
type_id, self._version, self._size = unpack(">4sLL", open(self._packpath).read(12))
def _set_cache_(self, attr):
if attr == '_data':
self._data = file_contents_ro_filepath(self._packpath)
# read the header information
type_id, self._version, self._size = unpack_from(
">4sLL", self._data, 0)
# TODO: figure out whether we should better keep the lock, or maybe
# add a .keep file instead ?
else: # must be '_size' or '_version'
# read header info - we do that just with a file stream
type_id, self._version, self._size = unpack(
">4sLL",
open(self._packpath).read(12))
