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"""
File sets and globbing helper for make_layout.
"""
__author__ = "Steve Dower <steve.dower@python.org>"
__version__ = "3.8"
import os
class FileStemSet:
def __init__(self, *patterns):
self._names = set()
self._prefixes = []
self._suffixes = []
for p in map(os.path.normcase, patterns):
if p.endswith("*"):
self._prefixes.append(p[:-1])
elif p.startswith("*"):
self._suffixes.append(p[1:])
else:
self._names.add(p)
def _make_name(self, f):
return os.path.normcase(f.stem)
def __contains__(self, f):
bn = self._make_name(f)
return (
bn in self._names
or any(map(bn.startswith, self._prefixes))
or any(map(bn.endswith, self._suffixes))
)
class FileNameSet(FileStemSet):
def _make_name(self, f):
return os.path.normcase(f.name)
class FileSuffixSet:
def __init__(self, *patterns):
self._names = set()
self._prefixes = []
self._suffixes = []
for p in map(os.path.normcase, patterns):
if p.startswith("*."):
self._names.add(p[1:])
elif p.startswith("*"):
self._suffixes.append(p[1:])
elif p.endswith("*"):
self._prefixes.append(p[:-1])
elif p.startswith("."):
self._names.add(p)
else:
self._names.add("." + p)
def _make_name(self, f):
return os.path.normcase(f.suffix)
def __contains__(self, f):
bn = self._make_name(f)
return (
bn in self._names
or any(map(bn.startswith, self._prefixes))
or any(map(bn.endswith, self._suffixes))
)
def _rglob(root, pattern, condition):
dirs = [root]
recurse = pattern[:3] in {"**/", "**\\"}
if recurse:
pattern = pattern[3:]
while dirs:
d = dirs.pop(0)
if recurse:
dirs.extend(
filter(
condition, (type(root)(f2) for f2 in os.scandir(d) if f2.is_dir())
)
)
yield from (
(f.relative_to(root), f)
for f in d.glob(pattern)
if f.is_file() and condition(f)
)
def _return_true(f):
return True
def rglob(root, patterns, condition=None):
if not os.path.isdir(root):
return
if isinstance(patterns, tuple):
for p in patterns:
yield from _rglob(root, p, condition or _return_true)
else:
yield from _rglob(root, patterns, condition or _return_true)
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