def scan_dir(self, mdid, direct, udfmode=False):
"""Compares one directory between metadata and disk."""
log_info("scan dir: %r mdid: %s", direct, mdid)
# get the share to get only a subset of mdids
for share in self._get_volumes():
if direct.startswith(share.path):
break
else:
# not in RW shares; let's check RO shares, otherwise it's an error
for share in self._get_volumes(access_level="View"):
if direct.startswith(share.path):
return
log_error("The received path is not in any share!")
raise ValueError("The received path is not in any share!")
# uglier than path_exists and isdir, but only hit the disk once
stat_result = get_stat(direct)
if stat_result is None:
m = "The received path is not in disk: path %r mdid %s"
log_debug(m, direct, mdid)
# it's better to delay the rescan some miliseconds, as if a
# directory was moved, it's better to leave stuff some time to
# settle down
reactor.callLater(.1, self._send_scan_error, mdid, udfmode)
return
elif not stat.S_ISDIR(stat_result.st_mode):
m = "The path is in disk but it's not a dir: %r" % direct
log_error(m)
raise ValueError(m)
# No, 'share' is surely defined; pylint: disable-msg=W0631
self._queue.appendleft((share, direct, mdid, udfmode))
return self._queue_scan()
def scan():
"""The scan, really."""
log_debug("scanning the dir %r", dirpath)
dircontent = listdir(dirpath)
# get the info from disk
dnames = []
fnames = []
for something in dircontent:
fullname = os.path.join(dirpath, something)
stat_result = get_stat(fullname)
if stat_result is None:
# gone between the listdir and now
continue
if is_link(fullname):
log_info("Ignoring path as it's a symlink: %r", fullname)
continue
if not is_valid_name(fullname):
m = "Ignoring path because it's invalid (non utf8): %r"
log_info(m, fullname)
continue
if not access(fullname):
log_warning("Ignoring path as we don't have enough "
"permissions to track it: %r", fullname)
continue
if stat.S_ISDIR(stat_result.st_mode):
dnames.append(something)
elif stat.S_ISREG(stat_result.st_mode):
fnames.append(something)
else:
log_warning("Path: %r isn't a dir, file or symlink.",
fullname)
events, to_scan_later = self._compare(dirpath, dnames, fnames,
share)
to_later.extend(to_scan_later)
return events
