tahoe-lafs/src/allmydata/magicpath.py
2016-07-21 12:35:59 -07:00

34 lines
915 B
Python

import re
import os.path
from allmydata.util.assertutil import precondition, _assert
def path2magic(path):
return re.sub(ur'[/@]', lambda m: {u'/': u'@_', u'@': u'@@'}[m.group(0)], path)
def magic2path(path):
return re.sub(ur'@[_@]', lambda m: {u'@_': u'/', u'@@': u'@'}[m.group(0)], path)
IGNORE_SUFFIXES = [u'.backup', u'.tmp', u'.conflict']
IGNORE_PREFIXES = [u'.']
def should_ignore_file(path_u):
precondition(isinstance(path_u, unicode), path_u=path_u)
for suffix in IGNORE_SUFFIXES:
if path_u.endswith(suffix):
return True
while path_u != u"":
oldpath_u = path_u
path_u, tail_u = os.path.split(path_u)
if tail_u.startswith(u"."):
return True
if path_u == oldpath_u:
return True # the path was absolute
_assert(len(path_u) < len(oldpath_u), path_u=path_u, oldpath_u=oldpath_u)
return False