forked from cpburnz/python-pathspec
-
Notifications
You must be signed in to change notification settings - Fork 0
/
pathspec.py
304 lines (251 loc) Β· 9.3 KB
/
pathspec.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
"""
This module provides an object oriented interface for pattern matching of files.
"""
from collections.abc import (
Collection as CollectionType)
from itertools import (
zip_longest)
from typing import (
AnyStr,
Callable,
Collection,
Iterable,
Iterator,
Optional,
Type,
TypeVar,
Union)
from . import util
from .pattern import (
Pattern)
from .util import (
StrPath,
TreeEntry,
_filter_patterns,
_is_iterable,
match_file,
normalize_file)
Self = TypeVar("Self", bound="PathSpec")
"""
:class:`PathSpec` self type hint to support Python v<3.11 using PEP 673
recommendation.
"""
class PathSpec(object):
"""
The :class:`PathSpec` class is a wrapper around a list of compiled
:class:`.Pattern` instances.
"""
def __init__(self, patterns: Iterable[Pattern]) -> None:
"""
Initializes the :class:`PathSpec` instance.
*patterns* (:class:`~collections.abc.Collection` or :class:`~collections.abc.Iterable`)
yields each compiled pattern (:class:`.Pattern`).
"""
self.patterns = patterns if isinstance(patterns, CollectionType) else list(patterns)
"""
*patterns* (:class:`~collections.abc.Collection` of :class:`.Pattern`)
contains the compiled patterns.
"""
def __eq__(self, other: object) -> bool:
"""
Tests the equality of this path-spec with *other* (:class:`PathSpec`)
by comparing their :attr:`~PathSpec.patterns` attributes.
"""
if isinstance(other, PathSpec):
paired_patterns = zip_longest(self.patterns, other.patterns)
return all(a == b for a, b in paired_patterns)
else:
return NotImplemented
def __len__(self) -> int:
"""
Returns the number of compiled patterns this path-spec contains
(:class:`int`).
"""
return len(self.patterns)
def __add__(self: Self, other: "PathSpec") -> Self:
"""
Combines the :attr:`Pathspec.patterns` patterns from two
:class:`PathSpec` instances.
"""
if isinstance(other, PathSpec):
return self.__class__(self.patterns + other.patterns)
else:
return NotImplemented
def __iadd__(self: Self, other: "PathSpec") -> Self:
"""
Adds the :attr:`Pathspec.patterns` patterns from one :class:`PathSpec`
instance to this instance.
"""
if isinstance(other, PathSpec):
self.patterns += other.patterns
return self
else:
return NotImplemented
@classmethod
def from_lines(
cls: Type[Self],
pattern_factory: Union[str, Callable[[AnyStr], Pattern]],
lines: Iterable[AnyStr],
) -> Self:
"""
Compiles the pattern lines.
*pattern_factory* can be either the name of a registered pattern factory
(:class:`str`), or a :class:`~collections.abc.Callable` used to compile
patterns. It must accept an uncompiled pattern (:class:`str`) and return the
compiled pattern (:class:`.Pattern`).
*lines* (:class:`~collections.abc.Iterable`) yields each uncompiled pattern
(:class:`str`). This simply has to yield each line so that it can be a
:class:`io.TextIOBase` (e.g., from :func:`open` or :class:`io.StringIO`) or
the result from :meth:`str.splitlines`.
Returns the :class:`PathSpec` instance.
"""
if isinstance(pattern_factory, str):
pattern_factory = util.lookup_pattern(pattern_factory)
if not callable(pattern_factory):
raise TypeError(f"pattern_factory:{pattern_factory!r} is not callable.")
if not _is_iterable(lines):
raise TypeError(f"lines:{lines!r} is not an iterable.")
patterns = [pattern_factory(line) for line in lines if line]
return cls(patterns)
def match_entries(
self,
entries: Iterable[TreeEntry],
separators: Optional[Collection[str]] = None,
*,
negate: Optional[bool] = None,
) -> Iterator[TreeEntry]:
"""
Matches the entries to this path-spec.
*entries* (:class:`~collections.abc.Iterable` of :class:`~pathspec.util.TreeEntry`)
contains the entries to be matched against :attr:`self.patterns <PathSpec.patterns>`.
*separators* (:class:`~collections.abc.Collection` of :class:`str`; or
:data:`None`) optionally contains the path separators to normalize. See
:func:`~pathspec.util.normalize_file` for more information.
*negate* (:class:`bool` or :data:`None`) is whether to negate the match
results of the patterns. If :data:`True`, a pattern matching a file will
exclude the file rather than include it. Default is :data:`None` for
:data:`False`.
Returns the matched entries (:class:`~collections.abc.Iterator` of
:class:`~pathspec.util.TreeEntry`).
"""
if not _is_iterable(entries):
raise TypeError(f"entries:{entries!r} is not an iterable.")
use_patterns = _filter_patterns(self.patterns)
for entry in entries:
norm_file = normalize_file(entry.path, separators)
is_match = self._match_file(use_patterns, norm_file)
if negate:
is_match = not is_match
if is_match:
yield entry
# Match files using the `match_file()` utility function. Subclasses may
# override this method as an instance method. It does not have to be a static
# method.
_match_file = staticmethod(match_file)
def match_file(
self,
file: StrPath,
separators: Optional[Collection[str]] = None,
) -> bool:
"""
Matches the file to this path-spec.
*file* (:class:`str` or :class:`os.PathLike`) is the file path to be
matched against :attr:`self.patterns <PathSpec.patterns>`.
*separators* (:class:`~collections.abc.Collection` of :class:`str`)
optionally contains the path separators to normalize. See
:func:`~pathspec.util.normalize_file` for more information.
Returns :data:`True` if *file* matched; otherwise, :data:`False`.
"""
norm_file = util.normalize_file(file, separators=separators)
return self._match_file(self.patterns, norm_file)
def match_files(
self,
files: Iterable[StrPath],
separators: Optional[Collection[str]] = None,
*,
negate: Optional[bool] = None,
) -> Iterator[StrPath]:
"""
Matches the files to this path-spec.
*files* (:class:`~collections.abc.Iterable` of :class:`str` or
:class:`os.PathLike`) contains the file paths to be matched against
:attr:`self.patterns <PathSpec.patterns>`.
*separators* (:class:`~collections.abc.Collection` of :class:`str`; or
:data:`None`) optionally contains the path separators to normalize. See
:func:`~pathspec.util.normalize_file` for more information.
*negate* (:class:`bool` or :data:`None`) is whether to negate the match
results of the patterns. If :data:`True`, a pattern matching a file will
exclude the file rather than include it. Default is :data:`None` for
:data:`False`.
Returns the matched files (:class:`~collections.abc.Iterator` of
:class:`str` or :class:`os.PathLike`).
"""
if not _is_iterable(files):
raise TypeError(f"files:{files!r} is not an iterable.")
use_patterns = _filter_patterns(self.patterns)
for orig_file in files:
norm_file = normalize_file(orig_file, separators)
is_match = self._match_file(use_patterns, norm_file)
if negate:
is_match = not is_match
if is_match:
yield orig_file
def match_tree_entries(
self,
root: StrPath,
on_error: Optional[Callable] = None,
follow_links: Optional[bool] = None,
*,
negate: Optional[bool] = None,
) -> Iterator[TreeEntry]:
"""
Walks the specified root path for all files and matches them to this
path-spec.
*root* (:class:`str` or :class:`os.PathLike`) is the root directory to
search.
*on_error* (:class:`~collections.abc.Callable` or :data:`None`) optionally
is the error handler for file-system exceptions. See
:func:`~pathspec.util.iter_tree_entries` for more information.
*follow_links* (:class:`bool` or :data:`None`) optionally is whether to walk
symbolic links that resolve to directories. See
:func:`~pathspec.util.iter_tree_files` for more information.
*negate* (:class:`bool` or :data:`None`) is whether to negate the match
results of the patterns. If :data:`True`, a pattern matching a file will
exclude the file rather than include it. Default is :data:`None` for
:data:`False`.
Returns the matched files (:class:`~collections.abc.Iterator` of
:class:`.TreeEntry`).
"""
entries = util.iter_tree_entries(root, on_error=on_error, follow_links=follow_links)
yield from self.match_entries(entries, negate=negate)
def match_tree_files(
self,
root: StrPath,
on_error: Optional[Callable] = None,
follow_links: Optional[bool] = None,
*,
negate: Optional[bool] = None,
) -> Iterator[str]:
"""
Walks the specified root path for all files and matches them to this
path-spec.
*root* (:class:`str` or :class:`os.PathLike`) is the root directory to
search for files.
*on_error* (:class:`~collections.abc.Callable` or :data:`None`) optionally
is the error handler for file-system exceptions. See
:func:`~pathspec.util.iter_tree_files` for more information.
*follow_links* (:class:`bool` or :data:`None`) optionally is whether to walk
symbolic links that resolve to directories. See
:func:`~pathspec.util.iter_tree_files` for more information.
*negate* (:class:`bool` or :data:`None`) is whether to negate the match
results of the patterns. If :data:`True`, a pattern matching a file will
exclude the file rather than include it. Default is :data:`None` for
:data:`False`.
Returns the matched files (:class:`~collections.abc.Iterable` of
:class:`str`).
"""
files = util.iter_tree_files(root, on_error=on_error, follow_links=follow_links)
yield from self.match_files(files, negate=negate)
# Alias `match_tree_files()` as `match_tree()` for backward compatibility
# before v0.3.2.
match_tree = match_tree_files