forked from gitpython-developers/GitPython
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathutil.py
More file actions
1206 lines (954 loc) · 38.9 KB
/
util.py
File metadata and controls
1206 lines (954 loc) · 38.9 KB
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
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
# utils.py
# Copyright (C) 2008, 2009 Michael Trier (mtrier@gmail.com) and contributors
#
# This module is part of GitPython and is released under
# the BSD License: http://www.opensource.org/licenses/bsd-license.php
from abc import abstractmethod
import os.path as osp
from .compat import is_win
import contextlib
from functools import wraps
import getpass
import logging
import os
import platform
import subprocess
import re
import shutil
import stat
from sys import maxsize
import time
from urllib.parse import urlsplit, urlunsplit
import warnings
# from git.objects.util import Traversable
# typing ---------------------------------------------------------
from typing import (
Any,
AnyStr,
BinaryIO,
Callable,
Dict,
Generator,
IO,
Iterator,
List,
Optional,
Pattern,
Sequence,
Tuple,
TypeVar,
Union,
cast,
TYPE_CHECKING,
overload,
)
import pathlib
if TYPE_CHECKING:
from git.remote import Remote
from git.repo.base import Repo
from git.config import GitConfigParser, SectionConstraint
from git import Git
# from git.objects.base import IndexObject
from .types import (
Literal,
SupportsIndex,
Protocol,
runtime_checkable, # because behind py version guards
PathLike,
HSH_TD,
Total_TD,
Files_TD, # aliases
Has_id_attribute,
)
T_IterableObj = TypeVar("T_IterableObj", bound=Union["IterableObj", "Has_id_attribute"], covariant=True)
# So IterableList[Head] is subtype of IterableList[IterableObj]
# ---------------------------------------------------------------------
from gitdb.util import ( # NOQA @IgnorePep8
make_sha,
LockedFD, # @UnusedImport
file_contents_ro, # @UnusedImport
file_contents_ro_filepath, # @UnusedImport
LazyMixin, # @UnusedImport
to_hex_sha, # @UnusedImport
to_bin_sha, # @UnusedImport
bin_to_hex, # @UnusedImport
hex_to_bin, # @UnusedImport
)
# NOTE: Some of the unused imports might be used/imported by others.
# Handle once test-cases are back up and running.
# Most of these are unused here, but are for use by git-python modules so these
# don't see gitdb all the time. Flake of course doesn't like it.
__all__ = [
"stream_copy",
"join_path",
"to_native_path_linux",
"join_path_native",
"Stats",
"IndexFileSHA1Writer",
"IterableObj",
"IterableList",
"BlockingLockFile",
"LockFile",
"Actor",
"get_user_id",
"assure_directory_exists",
"RemoteProgress",
"CallableRemoteProgress",
"rmtree",
"unbare_repo",
"HIDE_WINDOWS_KNOWN_ERRORS",
]
log = logging.getLogger(__name__)
# types############################################################
#: We need an easy way to see if Appveyor TCs start failing,
#: so the errors marked with this var are considered "acknowledged" ones, awaiting remedy,
#: till then, we wish to hide them.
HIDE_WINDOWS_KNOWN_ERRORS = is_win and os.environ.get("HIDE_WINDOWS_KNOWN_ERRORS", True)
HIDE_WINDOWS_FREEZE_ERRORS = is_win and os.environ.get("HIDE_WINDOWS_FREEZE_ERRORS", True)
# { Utility Methods
T = TypeVar("T")
def unbare_repo(func: Callable[..., T]) -> Callable[..., T]:
"""Methods with this decorator raise :class:`.exc.InvalidGitRepositoryError` if they
encounter a bare repository"""
from .exc import InvalidGitRepositoryError
@wraps(func)
def wrapper(self: "Remote", *args: Any, **kwargs: Any) -> T:
if self.repo.bare:
raise InvalidGitRepositoryError("Method '%s' cannot operate on bare repositories" % func.__name__)
# END bare method
return func(self, *args, **kwargs)
# END wrapper
return wrapper
@contextlib.contextmanager
def cwd(new_dir: PathLike) -> Generator[PathLike, None, None]:
old_dir = os.getcwd()
os.chdir(new_dir)
try:
yield new_dir
finally:
os.chdir(old_dir)
def rmtree(path: PathLike) -> None:
"""Remove the given recursively.
:note: we use shutil rmtree but adjust its behaviour to see whether files that
couldn't be deleted are read-only. Windows will not remove them in that case"""
def onerror(func: Callable, path: PathLike, exc_info: str) -> None:
# Is the error an access error ?
os.chmod(path, stat.S_IWUSR)
try:
func(path) # Will scream if still not possible to delete.
except Exception as ex:
if HIDE_WINDOWS_KNOWN_ERRORS:
from unittest import SkipTest
raise SkipTest("FIXME: fails with: PermissionError\n {}".format(ex)) from ex
raise
return shutil.rmtree(path, False, onerror)
def rmfile(path: PathLike) -> None:
"""Ensure file deleted also on *Windows* where read-only files need special treatment."""
if osp.isfile(path):
if is_win:
os.chmod(path, 0o777)
os.remove(path)
def stream_copy(source: BinaryIO, destination: BinaryIO, chunk_size: int = 512 * 1024) -> int:
"""Copy all data from the source stream into the destination stream in chunks
of size chunk_size
:return: amount of bytes written"""
br = 0
while True:
chunk = source.read(chunk_size)
destination.write(chunk)
br += len(chunk)
if len(chunk) < chunk_size:
break
# END reading output stream
return br
def join_path(a: PathLike, *p: PathLike) -> PathLike:
"""Join path tokens together similar to osp.join, but always use
'/' instead of possibly '\' on windows."""
path = str(a)
for b in p:
b = str(b)
if not b:
continue
if b.startswith("/"):
path += b[1:]
elif path == "" or path.endswith("/"):
path += b
else:
path += "/" + b
# END for each path token to add
return path
if is_win:
def to_native_path_windows(path: PathLike) -> PathLike:
path = str(path)
return path.replace("/", "\\")
def to_native_path_linux(path: PathLike) -> str:
path = str(path)
return path.replace("\\", "/")
__all__.append("to_native_path_windows")
to_native_path = to_native_path_windows
else:
# no need for any work on linux
def to_native_path_linux(path: PathLike) -> str:
return str(path)
to_native_path = to_native_path_linux
def join_path_native(a: PathLike, *p: PathLike) -> PathLike:
"""
As join path, but makes sure an OS native path is returned. This is only
needed to play it safe on my dear windows and to assure nice paths that only
use '\'"""
return to_native_path(join_path(a, *p))
def assure_directory_exists(path: PathLike, is_file: bool = False) -> bool:
"""Assure that the directory pointed to by path exists.
:param is_file: If True, path is assumed to be a file and handled correctly.
Otherwise it must be a directory
:return: True if the directory was created, False if it already existed"""
if is_file:
path = osp.dirname(path)
# END handle file
if not osp.isdir(path):
os.makedirs(path, exist_ok=True)
return True
return False
def _get_exe_extensions() -> Sequence[str]:
PATHEXT = os.environ.get("PATHEXT", None)
return (
tuple(p.upper() for p in PATHEXT.split(os.pathsep)) if PATHEXT else (".BAT", "COM", ".EXE") if is_win else ("")
)
def py_where(program: str, path: Optional[PathLike] = None) -> List[str]:
# From: http://stackoverflow.com/a/377028/548792
winprog_exts = _get_exe_extensions()
def is_exec(fpath: str) -> bool:
return (
osp.isfile(fpath)
and os.access(fpath, os.X_OK)
and (os.name != "nt" or not winprog_exts or any(fpath.upper().endswith(ext) for ext in winprog_exts))
)
progs = []
if not path:
path = os.environ["PATH"]
for folder in str(path).split(os.pathsep):
folder = folder.strip('"')
if folder:
exe_path = osp.join(folder, program)
for f in [exe_path] + ["%s%s" % (exe_path, e) for e in winprog_exts]:
if is_exec(f):
progs.append(f)
return progs
def _cygexpath(drive: Optional[str], path: str) -> str:
if osp.isabs(path) and not drive:
# Invoked from `cygpath()` directly with `D:Apps\123`?
# It's an error, leave it alone just slashes)
p = path # convert to str if AnyPath given
else:
p = path and osp.normpath(osp.expandvars(osp.expanduser(path)))
if osp.isabs(p):
if drive:
# Confusing, maybe a remote system should expand vars.
p = path
else:
p = cygpath(p)
elif drive:
p = "/proc/cygdrive/%s/%s" % (drive.lower(), p)
p_str = str(p) # ensure it is a str and not AnyPath
return p_str.replace("\\", "/")
_cygpath_parsers: Tuple[Tuple[Pattern[str], Callable, bool], ...] = (
# See: https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx
# and: https://www.cygwin.com/cygwin-ug-net/using.html#unc-paths
(
re.compile(r"\\\\\?\\UNC\\([^\\]+)\\([^\\]+)(?:\\(.*))?"),
(lambda server, share, rest_path: "//%s/%s/%s" % (server, share, rest_path.replace("\\", "/"))),
False,
),
(re.compile(r"\\\\\?\\(\w):[/\\](.*)"), (_cygexpath), False),
(re.compile(r"(\w):[/\\](.*)"), (_cygexpath), False),
(re.compile(r"file:(.*)", re.I), (lambda rest_path: rest_path), True),
(re.compile(r"(\w{2,}:.*)"), (lambda url: url), False), # remote URL, do nothing
)
def cygpath(path: str) -> str:
"""Use :meth:`git.cmd.Git.polish_url()` instead, that works on any environment."""
path = str(path) # ensure is str and not AnyPath.
# Fix to use Paths when 3.5 dropped. or to be just str if only for urls?
if not path.startswith(("/cygdrive", "//", "/proc/cygdrive")):
for regex, parser, recurse in _cygpath_parsers:
match = regex.match(path)
if match:
path = parser(*match.groups())
if recurse:
path = cygpath(path)
break
else:
path = _cygexpath(None, path)
return path
_decygpath_regex = re.compile(r"(?:/proc)?/cygdrive/(\w)(/.*)?")
def decygpath(path: PathLike) -> str:
path = str(path)
m = _decygpath_regex.match(path)
if m:
drive, rest_path = m.groups()
path = "%s:%s" % (drive.upper(), rest_path or "")
return path.replace("/", "\\")
#: Store boolean flags denoting if a specific Git executable
#: is from a Cygwin installation (since `cache_lru()` unsupported on PY2).
_is_cygwin_cache: Dict[str, Optional[bool]] = {}
@overload
def is_cygwin_git(git_executable: None) -> Literal[False]:
...
@overload
def is_cygwin_git(git_executable: PathLike) -> bool:
...
def is_cygwin_git(git_executable: Union[None, PathLike]) -> bool:
if is_win:
# is_win seems to be true only for Windows-native pythons
# cygwin has os.name = posix, I think
return False
if git_executable is None:
return False
git_executable = str(git_executable)
is_cygwin = _is_cygwin_cache.get(git_executable) # type: Optional[bool]
if is_cygwin is None:
is_cygwin = False
try:
git_dir = osp.dirname(git_executable)
if not git_dir:
res = py_where(git_executable)
git_dir = osp.dirname(res[0]) if res else ""
# Just a name given, not a real path.
uname_cmd = osp.join(git_dir, "uname")
process = subprocess.Popen([uname_cmd], stdout=subprocess.PIPE, universal_newlines=True)
uname_out, _ = process.communicate()
# retcode = process.poll()
is_cygwin = "CYGWIN" in uname_out
except Exception as ex:
log.debug("Failed checking if running in CYGWIN due to: %r", ex)
_is_cygwin_cache[git_executable] = is_cygwin
return is_cygwin
def get_user_id() -> str:
""":return: string identifying the currently active system user as name@node"""
return "%s@%s" % (getpass.getuser(), platform.node())
def finalize_process(proc: Union[subprocess.Popen, "Git.AutoInterrupt"], **kwargs: Any) -> None:
"""Wait for the process (clone, fetch, pull or push) and handle its errors accordingly"""
# TODO: No close proc-streams??
proc.wait(**kwargs)
@overload
def expand_path(p: None, expand_vars: bool = ...) -> None:
...
@overload
def expand_path(p: PathLike, expand_vars: bool = ...) -> str:
# improve these overloads when 3.5 dropped
...
def expand_path(p: Union[None, PathLike], expand_vars: bool = True) -> Optional[PathLike]:
if isinstance(p, pathlib.Path):
return p.resolve()
try:
p = osp.expanduser(p) # type: ignore
if expand_vars:
p = osp.expandvars(p) # type: ignore
return osp.normpath(osp.abspath(p)) # type: ignore
except Exception:
return None
def remove_password_if_present(cmdline: Sequence[str]) -> List[str]:
"""
Parse any command line argument and if on of the element is an URL with a
username and/or password, replace them by stars (in-place).
If nothing found just returns the command line as-is.
This should be used for every log line that print a command line, as well as
exception messages.
"""
new_cmdline = []
for index, to_parse in enumerate(cmdline):
new_cmdline.append(to_parse)
try:
url = urlsplit(to_parse)
# Remove password from the URL if present
if url.password is None and url.username is None:
continue
if url.password is not None:
url = url._replace(netloc=url.netloc.replace(url.password, "*****"))
if url.username is not None:
url = url._replace(netloc=url.netloc.replace(url.username, "*****"))
new_cmdline[index] = urlunsplit(url)
except ValueError:
# This is not a valid URL
continue
return new_cmdline
# } END utilities
# { Classes
class RemoteProgress(object):
"""
Handler providing an interface to parse progress information emitted by git-push
and git-fetch and to dispatch callbacks allowing subclasses to react to the progress.
"""
_num_op_codes: int = 9
(
BEGIN,
END,
COUNTING,
COMPRESSING,
WRITING,
RECEIVING,
RESOLVING,
FINDING_SOURCES,
CHECKING_OUT,
) = [1 << x for x in range(_num_op_codes)]
STAGE_MASK = BEGIN | END
OP_MASK = ~STAGE_MASK
DONE_TOKEN = "done."
TOKEN_SEPARATOR = ", "
__slots__ = (
"_cur_line",
"_seen_ops",
"error_lines", # Lines that started with 'error:' or 'fatal:'.
"other_lines",
) # Lines not denoting progress (i.e.g. push-infos).
re_op_absolute = re.compile(r"(remote: )?([\w\s]+):\s+()(\d+)()(.*)")
re_op_relative = re.compile(r"(remote: )?([\w\s]+):\s+(\d+)% \((\d+)/(\d+)\)(.*)")
def __init__(self) -> None:
self._seen_ops: List[int] = []
self._cur_line: Optional[str] = None
self.error_lines: List[str] = []
self.other_lines: List[str] = []
def _parse_progress_line(self, line: AnyStr) -> None:
"""Parse progress information from the given line as retrieved by git-push
or git-fetch.
- Lines that do not contain progress info are stored in :attr:`other_lines`.
- Lines that seem to contain an error (i.e. start with error: or fatal:) are stored
in :attr:`error_lines`."""
# handle
# Counting objects: 4, done.
# Compressing objects: 50% (1/2)
# Compressing objects: 100% (2/2)
# Compressing objects: 100% (2/2), done.
if isinstance(line, bytes): # mypy argues about ternary assignment
line_str = line.decode("utf-8")
else:
line_str = line
self._cur_line = line_str
if self._cur_line.startswith(("error:", "fatal:")):
self.error_lines.append(self._cur_line)
return
# find escape characters and cut them away - regex will not work with
# them as they are non-ascii. As git might expect a tty, it will send them
last_valid_index = None
for i, c in enumerate(reversed(line_str)):
if ord(c) < 32:
# its a slice index
last_valid_index = -i - 1
# END character was non-ascii
# END for each character in line
if last_valid_index is not None:
line_str = line_str[:last_valid_index]
# END cut away invalid part
line_str = line_str.rstrip()
cur_count, max_count = None, None
match = self.re_op_relative.match(line_str)
if match is None:
match = self.re_op_absolute.match(line_str)
if not match:
self.line_dropped(line_str)
self.other_lines.append(line_str)
return
# END could not get match
op_code = 0
_remote, op_name, _percent, cur_count, max_count, message = match.groups()
# get operation id
if op_name == "Counting objects":
op_code |= self.COUNTING
elif op_name == "Compressing objects":
op_code |= self.COMPRESSING
elif op_name == "Writing objects":
op_code |= self.WRITING
elif op_name == "Receiving objects":
op_code |= self.RECEIVING
elif op_name == "Resolving deltas":
op_code |= self.RESOLVING
elif op_name == "Finding sources":
op_code |= self.FINDING_SOURCES
elif op_name == "Checking out files":
op_code |= self.CHECKING_OUT
else:
# Note: On windows it can happen that partial lines are sent
# Hence we get something like "CompreReceiving objects", which is
# a blend of "Compressing objects" and "Receiving objects".
# This can't really be prevented, so we drop the line verbosely
# to make sure we get informed in case the process spits out new
# commands at some point.
self.line_dropped(line_str)
# Note: Don't add this line to the other lines, as we have to silently
# drop it
return None
# END handle op code
# figure out stage
if op_code not in self._seen_ops:
self._seen_ops.append(op_code)
op_code |= self.BEGIN
# END begin opcode
if message is None:
message = ""
# END message handling
message = message.strip()
if message.endswith(self.DONE_TOKEN):
op_code |= self.END
message = message[: -len(self.DONE_TOKEN)]
# END end message handling
message = message.strip(self.TOKEN_SEPARATOR)
self.update(
op_code,
cur_count and float(cur_count),
max_count and float(max_count),
message,
)
def new_message_handler(self) -> Callable[[str], None]:
"""
:return:
a progress handler suitable for handle_process_output(), passing lines on to this Progress
handler in a suitable format"""
def handler(line: AnyStr) -> None:
return self._parse_progress_line(line.rstrip())
# end
return handler
def line_dropped(self, line: str) -> None:
"""Called whenever a line could not be understood and was therefore dropped."""
pass
def update(
self,
op_code: int,
cur_count: Union[str, float],
max_count: Union[str, float, None] = None,
message: str = "",
) -> None:
"""Called whenever the progress changes
:param op_code:
Integer allowing to be compared against Operation IDs and stage IDs.
Stage IDs are BEGIN and END. BEGIN will only be set once for each Operation
ID as well as END. It may be that BEGIN and END are set at once in case only
one progress message was emitted due to the speed of the operation.
Between BEGIN and END, none of these flags will be set
Operation IDs are all held within the OP_MASK. Only one Operation ID will
be active per call.
:param cur_count: Current absolute count of items
:param max_count:
The maximum count of items we expect. It may be None in case there is
no maximum number of items or if it is (yet) unknown.
:param message:
In case of the 'WRITING' operation, it contains the amount of bytes
transferred. It may possibly be used for other purposes as well.
You may read the contents of the current line in self._cur_line"""
pass
class CallableRemoteProgress(RemoteProgress):
"""An implementation forwarding updates to any callable"""
__slots__ = "_callable"
def __init__(self, fn: Callable) -> None:
self._callable = fn
super(CallableRemoteProgress, self).__init__()
def update(self, *args: Any, **kwargs: Any) -> None:
self._callable(*args, **kwargs)
class Actor(object):
"""Actors hold information about a person acting on the repository. They
can be committers and authors or anything with a name and an email as
mentioned in the git log entries."""
# PRECOMPILED REGEX
name_only_regex = re.compile(r"<(.*)>")
name_email_regex = re.compile(r"(.*) <(.*?)>")
# ENVIRONMENT VARIABLES
# read when creating new commits
env_author_name = "GIT_AUTHOR_NAME"
env_author_email = "GIT_AUTHOR_EMAIL"
env_committer_name = "GIT_COMMITTER_NAME"
env_committer_email = "GIT_COMMITTER_EMAIL"
# CONFIGURATION KEYS
conf_name = "name"
conf_email = "email"
__slots__ = ("name", "email")
def __init__(self, name: Optional[str], email: Optional[str]) -> None:
self.name = name
self.email = email
def __eq__(self, other: Any) -> bool:
return self.name == other.name and self.email == other.email
def __ne__(self, other: Any) -> bool:
return not (self == other)
def __hash__(self) -> int:
return hash((self.name, self.email))
def __str__(self) -> str:
return self.name if self.name else ""
def __repr__(self) -> str:
return '<git.Actor "%s <%s>">' % (self.name, self.email)
@classmethod
def _from_string(cls, string: str) -> "Actor":
"""Create an Actor from a string.
:param string: is the string, which is expected to be in regular git format
John Doe <jdoe@example.com>
:return: Actor"""
m = cls.name_email_regex.search(string)
if m:
name, email = m.groups()
return Actor(name, email)
else:
m = cls.name_only_regex.search(string)
if m:
return Actor(m.group(1), None)
# assume best and use the whole string as name
return Actor(string, None)
# END special case name
# END handle name/email matching
@classmethod
def _main_actor(
cls,
env_name: str,
env_email: str,
config_reader: Union[None, "GitConfigParser", "SectionConstraint"] = None,
) -> "Actor":
actor = Actor("", "")
user_id = None # We use this to avoid multiple calls to getpass.getuser()
def default_email() -> str:
nonlocal user_id
if not user_id:
user_id = get_user_id()
return user_id
def default_name() -> str:
return default_email().split("@")[0]
for attr, evar, cvar, default in (
("name", env_name, cls.conf_name, default_name),
("email", env_email, cls.conf_email, default_email),
):
try:
val = os.environ[evar]
setattr(actor, attr, val)
except KeyError:
if config_reader is not None:
try:
val = config_reader.get("user", cvar)
except Exception:
val = default()
setattr(actor, attr, val)
# END config-reader handling
if not getattr(actor, attr):
setattr(actor, attr, default())
# END handle name
# END for each item to retrieve
return actor
@classmethod
def committer(cls, config_reader: Union[None, "GitConfigParser", "SectionConstraint"] = None) -> "Actor":
"""
:return: Actor instance corresponding to the configured committer. It behaves
similar to the git implementation, such that the environment will override
configuration values of config_reader. If no value is set at all, it will be
generated
:param config_reader: ConfigReader to use to retrieve the values from in case
they are not set in the environment"""
return cls._main_actor(cls.env_committer_name, cls.env_committer_email, config_reader)
@classmethod
def author(cls, config_reader: Union[None, "GitConfigParser", "SectionConstraint"] = None) -> "Actor":
"""Same as committer(), but defines the main author. It may be specified in the environment,
but defaults to the committer"""
return cls._main_actor(cls.env_author_name, cls.env_author_email, config_reader)
class Stats(object):
"""
Represents stat information as presented by git at the end of a merge. It is
created from the output of a diff operation.
``Example``::
c = Commit( sha1 )
s = c.stats
s.total # full-stat-dict
s.files # dict( filepath : stat-dict )
``stat-dict``
A dictionary with the following keys and values::
deletions = number of deleted lines as int
insertions = number of inserted lines as int
lines = total number of lines changed as int, or deletions + insertions
``full-stat-dict``
In addition to the items in the stat-dict, it features additional information::
files = number of changed files as int"""
__slots__ = ("total", "files")
def __init__(self, total: Total_TD, files: Dict[PathLike, Files_TD]):
self.total = total
self.files = files
@classmethod
def _list_from_string(cls, repo: "Repo", text: str) -> "Stats":
"""Create a Stat object from output retrieved by git-diff.
:return: git.Stat"""
hsh: HSH_TD = {
"total": {"insertions": 0, "deletions": 0, "lines": 0, "files": 0},
"files": {},
}
for line in text.splitlines():
(raw_insertions, raw_deletions, filename) = line.split("\t")
insertions = raw_insertions != "-" and int(raw_insertions) or 0
deletions = raw_deletions != "-" and int(raw_deletions) or 0
hsh["total"]["insertions"] += insertions
hsh["total"]["deletions"] += deletions
hsh["total"]["lines"] += insertions + deletions
hsh["total"]["files"] += 1
files_dict: Files_TD = {
"insertions": insertions,
"deletions": deletions,
"lines": insertions + deletions,
}
hsh["files"][filename.strip()] = files_dict
return Stats(hsh["total"], hsh["files"])
class IndexFileSHA1Writer(object):
"""Wrapper around a file-like object that remembers the SHA1 of
the data written to it. It will write a sha when the stream is closed
or if the asked for explicitly using write_sha.
Only useful to the indexfile
:note: Based on the dulwich project"""
__slots__ = ("f", "sha1")
def __init__(self, f: IO) -> None:
self.f = f
self.sha1 = make_sha(b"")
def write(self, data: AnyStr) -> int:
self.sha1.update(data)
return self.f.write(data)
def write_sha(self) -> bytes:
sha = self.sha1.digest()
self.f.write(sha)
return sha
def close(self) -> bytes:
sha = self.write_sha()
self.f.close()
return sha
def tell(self) -> int:
return self.f.tell()
class LockFile(object):
"""Provides methods to obtain, check for, and release a file based lock which
should be used to handle concurrent access to the same file.
As we are a utility class to be derived from, we only use protected methods.
Locks will automatically be released on destruction"""
__slots__ = ("_file_path", "_owns_lock")
def __init__(self, file_path: PathLike) -> None:
self._file_path = file_path
self._owns_lock = False
def __del__(self) -> None:
self._release_lock()
def _lock_file_path(self) -> str:
""":return: Path to lockfile"""
return "%s.lock" % (self._file_path)
def _has_lock(self) -> bool:
""":return: True if we have a lock and if the lockfile still exists
:raise AssertionError: if our lock-file does not exist"""
return self._owns_lock
def _obtain_lock_or_raise(self) -> None:
"""Create a lock file as flag for other instances, mark our instance as lock-holder
:raise IOError: if a lock was already present or a lock file could not be written"""
if self._has_lock():
return
lock_file = self._lock_file_path()
if osp.isfile(lock_file):
raise IOError(
"Lock for file %r did already exist, delete %r in case the lock is illegal"
% (self._file_path, lock_file)
)
try:
flags = os.O_WRONLY | os.O_CREAT | os.O_EXCL
if is_win:
flags |= os.O_SHORT_LIVED
fd = os.open(lock_file, flags, 0)
os.close(fd)
except OSError as e:
raise IOError(str(e)) from e
self._owns_lock = True
def _obtain_lock(self) -> None:
"""The default implementation will raise if a lock cannot be obtained.
Subclasses may override this method to provide a different implementation"""
return self._obtain_lock_or_raise()
def _release_lock(self) -> None:
"""Release our lock if we have one"""
if not self._has_lock():
return
# if someone removed our file beforhand, lets just flag this issue
# instead of failing, to make it more usable.
lfp = self._lock_file_path()
try:
rmfile(lfp)
except OSError:
pass
self._owns_lock = False
class BlockingLockFile(LockFile):
"""The lock file will block until a lock could be obtained, or fail after
a specified timeout.
:note: If the directory containing the lock was removed, an exception will
be raised during the blocking period, preventing hangs as the lock
can never be obtained."""
__slots__ = ("_check_interval", "_max_block_time")
def __init__(
self,
file_path: PathLike,
check_interval_s: float = 0.3,
max_block_time_s: int = maxsize,
) -> None:
"""Configure the instance
:param check_interval_s:
Period of time to sleep until the lock is checked the next time.
By default, it waits a nearly unlimited time
:param max_block_time_s: Maximum amount of seconds we may lock"""
super(BlockingLockFile, self).__init__(file_path)
self._check_interval = check_interval_s
self._max_block_time = max_block_time_s
def _obtain_lock(self) -> None:
"""This method blocks until it obtained the lock, or raises IOError if
it ran out of time or if the parent directory was not available anymore.
If this method returns, you are guaranteed to own the lock"""
starttime = time.time()