def get_name_filter(filter_this, include_this):
"""Returns a function that evaluates if a file or folder name must be
filtered out.
The compared paths are first converted to unicode and decomposed.
This is neccesary because the way PY2.* `os.walk` read unicode
paths in different filesystems. For instance, in OSX, it returns a
decomposed unicode string. In those systems, u'ñ' is read as `\u0303`
instead of `\xf1`.
"""
filter_this = [normalize(to_unicode(f)) for f in filter_this]
include_this = [normalize(to_unicode(f)) for f in include_this]
def fullmatch(path, pattern):
path = normalize(path)
name = os.path.basename(path)
return fnmatch(name, pattern) or fnmatch(path, pattern)
def must_be_filtered(name):
return reduce(lambda r, pattern: r or
fullmatch(name, pattern), filter_this, False)
def must_be_included(name):
return reduce(lambda r, pattern: r or
fullmatch(name, pattern), include_this, False)
def must_filter(path):
return must_be_filtered(path) and not must_be_included(path)
return must_filter
def fullmatch(path, pattern):
path = normalize(path)
name = os.path.basename(path)
return fnmatch(name, pattern) or fnmatch(path, pattern)