forked from gitpython-developers/GitPython
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathbase.py
More file actions
1158 lines (965 loc) · 39.2 KB
/
base.py
File metadata and controls
1158 lines (965 loc) · 39.2 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
# index.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
import tempfile
import os
import sys
import subprocess
import glob
from cStringIO import StringIO
from stat import S_ISLNK
from typ import (
BaseIndexEntry,
IndexEntry,
)
from util import (
TemporaryFileSwap,
post_clear_cache,
default_index,
git_working_dir
)
import git.objects
import git.diff as diff
from git.exc import (
GitCommandError,
CheckoutError
)
from git.objects import (
Blob,
Submodule,
Tree,
Object,
Commit,
)
from git.objects.util import Serializable
from git.util import (
IndexFileSHA1Writer,
LazyMixin,
LockedFD,
join_path_native,
file_contents_ro,
to_native_path_linux,
to_native_path
)
from fun import (
entry_key,
write_cache,
read_cache,
aggressive_tree_merge,
write_tree_from_cache,
stat_mode_to_index_mode,
S_IFGITLINK
)
from git.base import IStream
from git.util import to_bin_sha
from itertools import izip
__all__ = ( 'IndexFile', 'CheckoutError' )
class IndexFile(LazyMixin, diff.Diffable, Serializable):
"""
Implements an Index that can be manipulated using a native implementation in
order to save git command function calls wherever possible.
It provides custom merging facilities allowing to merge without actually changing
your index or your working tree. This way you can perform own test-merges based
on the index only without having to deal with the working copy. This is useful
in case of partial working trees.
``Entries``
The index contains an entries dict whose keys are tuples of type IndexEntry
to facilitate access.
You may read the entries dict or manipulate it using IndexEntry instance, i.e.::
index.entries[index.entry_key(index_entry_instance)] = index_entry_instance
Make sure you use index.write() once you are done manipulating the index directly
before operating on it using the git command"""
__slots__ = ("repo", "version", "entries", "_extension_data", "_file_path")
_VERSION = 2 # latest version we support
S_IFGITLINK = S_IFGITLINK # a submodule
def __init__(self, repo, file_path=None):
"""Initialize this Index instance, optionally from the given ``file_path``.
If no file_path is given, we will be created from the current index file.
If a stream is not given, the stream will be initialized from the current
repository's index on demand."""
self.repo = repo
self.version = self._VERSION
self._extension_data = ''
self._file_path = file_path or self._index_path()
def _set_cache_(self, attr):
if attr == "entries":
# read the current index
# try memory map for speed
lfd = LockedFD(self._file_path)
try:
fd = lfd.open(write=False, stream=False)
except OSError:
lfd.rollback()
# in new repositories, there may be no index, which means we are empty
self.entries = dict()
return
# END exception handling
# Here it comes: on windows in python 2.5, memory maps aren't closed properly
# Hence we are in trouble if we try to delete a file that is memory mapped,
# which happens during read-tree.
# In this case, we will just read the memory in directly.
# Its insanely bad ... I am disappointed !
allow_mmap = (os.name != 'nt' or sys.version_info[1] > 5)
stream = file_contents_ro(fd, stream=True, allow_mmap=allow_mmap)
try:
self._deserialize(stream)
finally:
lfd.rollback()
# The handles will be closed on desctruction
# END read from default index on demand
else:
super(IndexFile, self)._set_cache_(attr)
def _index_path(self):
return join_path_native(self.repo.git_dir, "index")
@property
def path(self):
""" :return: Path to the index file we are representing """
return self._file_path
def _delete_entries_cache(self):
"""Safely clear the entries cache so it can be recreated"""
try:
del(self.entries)
except AttributeError:
# fails in python 2.6.5 with this exception
pass
# END exception handling
#{ Serializable Interface
def _deserialize(self, stream):
"""Initialize this instance with index values read from the given stream"""
self.version, self.entries, self._extension_data, conten_sha = read_cache(stream)
return self
def _entries_sorted(self):
""":return: list of entries, in a sorted fashion, first by path, then by stage"""
entries_sorted = self.entries.values()
entries_sorted.sort(key=lambda e: (e.path, e.stage)) # use path/stage as sort key
return entries_sorted
def _serialize(self, stream, ignore_tree_extension_data=False):
entries = self._entries_sorted()
write_cache(entries,
stream,
(ignore_tree_extension_data and None) or self._extension_data)
return self
#} END serializable interface
def write(self, file_path = None, ignore_tree_extension_data=False):
"""Write the current state to our file path or to the given one
:param file_path:
If None, we will write to our stored file path from which we have
been initialized. Otherwise we write to the given file path.
Please note that this will change the file_path of this index to
the one you gave.
:param ignore_tree_extension_data:
If True, the TREE type extension data read in the index will not
be written to disk. Use this if you have altered the index and
would like to use git-write-tree afterwards to create a tree
representing your written changes.
If this data is present in the written index, git-write-tree
will instead write the stored/cached tree.
Alternatively, use IndexFile.write_tree() to handle this case
automatically
:return: self"""
# make sure we have our entries read before getting a write lock
# else it would be done when streaming. This can happen
# if one doesn't change the index, but writes it right away
self.entries
lfd = LockedFD(file_path or self._file_path)
stream = lfd.open(write=True, stream=True)
self._serialize(stream, ignore_tree_extension_data)
lfd.commit()
# make sure we represent what we have written
if file_path is not None:
self._file_path = file_path
@post_clear_cache
@default_index
def merge_tree(self, rhs, base=None):
"""Merge the given rhs treeish into the current index, possibly taking
a common base treeish into account.
As opposed to the from_tree_ method, this allows you to use an already
existing tree as the left side of the merge
:param rhs:
treeish reference pointing to the 'other' side of the merge.
:param base:
optional treeish reference pointing to the common base of 'rhs' and
this index which equals lhs
:return:
self ( containing the merge and possibly unmerged entries in case of
conflicts )
:raise GitCommandError:
If there is a merge conflict. The error will
be raised at the first conflicting path. If you want to have proper
merge resolution to be done by yourself, you have to commit the changed
index ( or make a valid tree from it ) and retry with a three-way
index.from_tree call. """
# -i : ignore working tree status
# --aggressive : handle more merge cases
# -m : do an actual merge
args = ["--aggressive", "-i", "-m"]
if base is not None:
args.append(base)
args.append(rhs)
self.repo.git.read_tree(args)
return self
@classmethod
def new(cls, repo, *tree_sha):
""" Merge the given treeish revisions into a new index which is returned.
This method behaves like git-read-tree --aggressive when doing the merge.
:param repo: The repository treeish are located in.
:param tree_sha:
20 byte or 40 byte tree sha or tree objects
:return:
New IndexFile instance. Its path will be undefined.
If you intend to write such a merged Index, supply an alternate file_path
to its 'write' method."""
base_entries = aggressive_tree_merge(repo.odb, [to_bin_sha(str(t)) for t in tree_sha])
inst = cls(repo)
# convert to entries dict
entries = dict(izip(((e.path, e.stage) for e in base_entries),
(IndexEntry.from_base(e) for e in base_entries)))
inst.entries = entries
return inst
@classmethod
def from_tree(cls, repo, *treeish, **kwargs):
"""Merge the given treeish revisions into a new index which is returned.
The original index will remain unaltered
:param repo:
The repository treeish are located in.
:param treeish:
One, two or three Tree Objects, Commits or 40 byte hexshas. The result
changes according to the amount of trees.
If 1 Tree is given, it will just be read into a new index
If 2 Trees are given, they will be merged into a new index using a
two way merge algorithm. Tree 1 is the 'current' tree, tree 2 is the 'other'
one. It behaves like a fast-forward.
If 3 Trees are given, a 3-way merge will be performed with the first tree
being the common ancestor of tree 2 and tree 3. Tree 2 is the 'current' tree,
tree 3 is the 'other' one
:param kwargs:
Additional arguments passed to git-read-tree
:return:
New IndexFile instance. It will point to a temporary index location which
does not exist anymore. If you intend to write such a merged Index, supply
an alternate file_path to its 'write' method.
:note:
In the three-way merge case, --aggressive will be specified to automatically
resolve more cases in a commonly correct manner. Specify trivial=True as kwarg
to override that.
As the underlying git-read-tree command takes into account the current index,
it will be temporarily moved out of the way to assure there are no unsuspected
interferences."""
if len(treeish) == 0 or len(treeish) > 3:
raise ValueError("Please specify between 1 and 3 treeish, got %i" % len(treeish))
arg_list = list()
# ignore that working tree and index possibly are out of date
if len(treeish)>1:
# drop unmerged entries when reading our index and merging
arg_list.append("--reset")
# handle non-trivial cases the way a real merge does
arg_list.append("--aggressive")
# END merge handling
# tmp file created in git home directory to be sure renaming
# works - /tmp/ dirs could be on another device
tmp_index = tempfile.mktemp('','',repo.git_dir)
arg_list.append("--index-output=%s" % tmp_index)
arg_list.extend(treeish)
# move current index out of the way - otherwise the merge may fail
# as it considers existing entries. moving it essentially clears the index.
# Unfortunately there is no 'soft' way to do it.
# The TemporaryFileSwap assure the original file get put back
index_handler = TemporaryFileSwap(join_path_native(repo.git_dir, 'index'))
try:
repo.git.read_tree(*arg_list, **kwargs)
index = cls(repo, tmp_index)
index.entries # force it to read the file as we will delete the temp-file
del(index_handler) # release as soon as possible
finally:
if os.path.exists(tmp_index):
os.remove(tmp_index)
# END index merge handling
return index
# UTILITIES
def _iter_expand_paths(self, paths):
"""Expand the directories in list of paths to the corresponding paths accordingly,
Note: git will add items multiple times even if a glob overlapped
with manually specified paths or if paths where specified multiple
times - we respect that and do not prune"""
def raise_exc(e):
raise e
r = self.repo.working_tree_dir
rs = r + os.sep
for path in paths:
abs_path = path
if not os.path.isabs(abs_path):
abs_path = os.path.join(r, path)
# END make absolute path
# resolve globs if possible
if '?' in path or '*' in path or '[' in path:
for f in self._iter_expand_paths(glob.glob(abs_path)):
yield f.replace(rs, '')
continue
# END glob handling
try:
for root, dirs, files in os.walk(abs_path, onerror=raise_exc):
for rela_file in files:
# add relative paths only
yield os.path.join(root.replace(rs, ''), rela_file)
# END for each file in subdir
# END for each subdirectory
except OSError:
# was a file or something that could not be iterated
yield path.replace(rs, '')
# END path exception handling
# END for each path
def _write_path_to_stdin(self, proc, filepath, item, fmakeexc, fprogress,
read_from_stdout=True):
"""Write path to proc.stdin and make sure it processes the item, including progress.
:return: stdout string
:param read_from_stdout: if True, proc.stdout will be read after the item
was sent to stdin. In that case, it will return None
:note: There is a bug in git-update-index that prevents it from sending
reports just in time. This is why we have a version that tries to
read stdout and one which doesn't. In fact, the stdout is not
important as the piped-in files are processed anyway and just in time
:note: Newlines are essential here, gits behaviour is somewhat inconsistent
on this depending on the version, hence we try our best to deal with
newlines carefully. Usually the last newline will not be sent, instead
we will close stdin to break the pipe."""
fprogress(filepath, False, item)
rval = None
try:
proc.stdin.write("%s\n" % filepath)
except IOError:
# pipe broke, usually because some error happend
raise fmakeexc()
# END write exception handling
proc.stdin.flush()
if read_from_stdout:
rval = proc.stdout.readline().strip()
fprogress(filepath, True, item)
return rval
def iter_blobs(self, predicate = lambda t: True):
"""
:return: Iterator yielding tuples of Blob objects and stages, tuple(stage, Blob)
:param predicate:
Function(t) returning True if tuple(stage, Blob) should be yielded by the
iterator. A default filter, the BlobFilter, allows you to yield blobs
only if they match a given list of paths. """
for entry in self.entries.itervalues():
# TODO: is it necessary to convert the mode ? We did that when adding
# it to the index, right ?
mode = stat_mode_to_index_mode(entry.mode)
blob = entry.to_blob(self.repo)
blob.size = entry.size
output = (entry.stage, blob)
if predicate(output):
yield output
# END for each entry
def unmerged_blobs(self):
"""
:return:
Iterator yielding dict(path : list( tuple( stage, Blob, ...))), being
a dictionary associating a path in the index with a list containing
sorted stage/blob pairs
:note:
Blobs that have been removed in one side simply do not exist in the
given stage. I.e. a file removed on the 'other' branch whose entries
are at stage 3 will not have a stage 3 entry.
"""
is_unmerged_blob = lambda t: t[0] != 0
path_map = dict()
for stage, blob in self.iter_blobs(is_unmerged_blob):
path_map.setdefault(blob.path, list()).append((stage, blob))
# END for each unmerged blob
for l in path_map.itervalues():
l.sort()
return path_map
@classmethod
def entry_key(cls, *entry):
return entry_key(*entry)
def resolve_blobs(self, iter_blobs):
"""Resolve the blobs given in blob iterator. This will effectively remove the
index entries of the respective path at all non-null stages and add the given
blob as new stage null blob.
For each path there may only be one blob, otherwise a ValueError will be raised
claiming the path is already at stage 0.
:raise ValueError: if one of the blobs already existed at stage 0
:return: self
:note:
You will have to write the index manually once you are done, i.e.
index.resolve_blobs(blobs).write()
"""
for blob in iter_blobs:
stage_null_key = (blob.path, 0)
if stage_null_key in self.entries:
raise ValueError( "Path %r already exists at stage 0" % blob.path )
# END assert blob is not stage 0 already
# delete all possible stages
for stage in (1, 2, 3):
try:
del( self.entries[(blob.path, stage)])
except KeyError:
pass
# END ignore key errors
# END for each possible stage
self.entries[stage_null_key] = IndexEntry.from_blob(blob)
# END for each blob
return self
def update(self):
"""Reread the contents of our index file, discarding all cached information
we might have.
:note: This is a possibly dangerious operations as it will discard your changes
to index.entries
:return: self"""
self._delete_entries_cache()
# allows to lazily reread on demand
return self
def write_tree(self):
"""Writes this index to a corresponding Tree object into the repository's
object database and return it.
:return: Tree object representing this index
:note: The tree will be written even if one or more objects the tree refers to
does not yet exist in the object database. This could happen if you added
Entries to the index directly.
:raise ValueError: if there are no entries in the cache
:raise UnmergedEntriesError: """
# we obtain no lock as we just flush our contents to disk as tree
# If we are a new index, the entries access will load our data accordingly
# Needs delayed import as db.py import IndexFile as well
import git.db.py.mem
mdb = git.db.py.mem.PureMemoryDB()
entries = self._entries_sorted()
binsha, tree_items = write_tree_from_cache(entries, mdb, slice(0, len(entries)))
# copy changed trees only
mdb.stream_copy(mdb.sha_iter(), self.repo.odb)
# note: additional deserialization could be saved if write_tree_from_cache
# would return sorted tree entries
root_tree = Tree(self.repo, binsha, path='')
root_tree._cache = tree_items
return root_tree
def _process_diff_args(self, args):
try:
args.pop(args.index(self))
except IndexError:
pass
# END remove self
return args
def _to_relative_path(self, path):
""":return: Version of path relative to our git directory or raise ValueError
if it is not within our git direcotory"""
if not os.path.isabs(path):
return path
relative_path = path.replace(self.repo.working_tree_dir+os.sep, "")
if relative_path == path:
raise ValueError("Absolute path %r is not in git repository at %r" % (path,self.repo.working_tree_dir))
return relative_path
def _preprocess_add_items(self, items):
""" Split the items into two lists of path strings and BaseEntries. """
paths = list()
entries = list()
for item in items:
if isinstance(item, basestring):
paths.append(self._to_relative_path(item))
elif isinstance(item, (Blob, Submodule)):
entries.append(BaseIndexEntry.from_blob(item))
elif isinstance(item, BaseIndexEntry):
entries.append(item)
else:
raise TypeError("Invalid Type: %r" % item)
# END for each item
return (paths, entries)
@git_working_dir
def add(self, items, force=True, fprogress=lambda *args: None, path_rewriter=None,
write=True):
"""Add files from the working tree, specific blobs or BaseIndexEntries
to the index.
:param items:
Multiple types of items are supported, types can be mixed within one call.
Different types imply a different handling. File paths may generally be
relative or absolute.
- path string
strings denote a relative or absolute path into the repository pointing to
an existing file, i.e. CHANGES, lib/myfile.ext, '/home/gitrepo/lib/myfile.ext'.
Paths provided like this must exist. When added, they will be written
into the object database.
PathStrings may contain globs, such as 'lib/__init__*' or can be directories
like 'lib', the latter ones will add all the files within the dirctory and
subdirectories.
This equals a straight git-add.
They are added at stage 0
- Blob or Submodule object
Blobs are added as they are assuming a valid mode is set.
The file they refer to may or may not exist in the file system, but
must be a path relative to our repository.
If their sha is null ( 40*0 ), their path must exist in the file system
relative to the git repository as an object will be created from
the data at the path.
The handling now very much equals the way string paths are processed, except that
the mode you have set will be kept. This allows you to create symlinks
by settings the mode respectively and writing the target of the symlink
directly into the file. This equals a default Linux-Symlink which
is not dereferenced automatically, except that it can be created on
filesystems not supporting it as well.
Please note that globs or directories are not allowed in Blob objects.
They are added at stage 0
- BaseIndexEntry or type
Handling equals the one of Blob objects, but the stage may be
explicitly set. Please note that Index Entries require binary sha's.
:param force:
**CURRENTLY INEFFECTIVE**
If True, otherwise ignored or excluded files will be
added anyway.
As opposed to the git-add command, we enable this flag by default
as the API user usually wants the item to be added even though
they might be excluded.
:param fprogress:
Function with signature f(path, done=False, item=item) called for each
path to be added, one time once it is about to be added where done==False
and once after it was added where done=True.
item is set to the actual item we handle, either a Path or a BaseIndexEntry
Please note that the processed path is not guaranteed to be present
in the index already as the index is currently being processed.
:param path_rewriter:
Function with signature (string) func(BaseIndexEntry) function returning a path
for each passed entry which is the path to be actually recorded for the
object created from entry.path. This allows you to write an index which
is not identical to the layout of the actual files on your hard-disk.
If not None and ``items`` contain plain paths, these paths will be
converted to Entries beforehand and passed to the path_rewriter.
Please note that entry.path is relative to the git repository.
:param write:
If True, the index will be written once it was altered. Otherwise
the changes only exist in memory and are not available to git commands.
:return:
List(BaseIndexEntries) representing the entries just actually added.
:raise OSError:
if a supplied Path did not exist. Please note that BaseIndexEntry
Objects that do not have a null sha will be added even if their paths
do not exist.
"""
# sort the entries into strings and Entries, Blobs are converted to entries
# automatically
# paths can be git-added, for everything else we use git-update-index
entries_added = list()
paths, entries = self._preprocess_add_items(items)
if paths and path_rewriter:
for path in paths:
abspath = os.path.abspath(path)
gitrelative_path = abspath[len(self.repo.working_tree_dir)+1:]
blob = Blob(self.repo, Blob.NULL_BIN_SHA,
stat_mode_to_index_mode(os.stat(abspath).st_mode),
to_native_path_linux(gitrelative_path))
entries.append(BaseIndexEntry.from_blob(blob))
# END for each path
del(paths[:])
# END rewrite paths
def store_path(filepath):
"""Store file at filepath in the database and return the base index entry"""
st = os.lstat(filepath) # handles non-symlinks as well
stream = None
if S_ISLNK(st.st_mode):
stream = StringIO(os.readlink(filepath))
else:
stream = open(filepath, 'rb')
# END handle stream
fprogress(filepath, False, filepath)
istream = self.repo.odb.store(IStream(Blob.type, st.st_size, stream))
fprogress(filepath, True, filepath)
return BaseIndexEntry((stat_mode_to_index_mode(st.st_mode),
istream.binsha, 0, to_native_path_linux(filepath)))
# END utility method
# HANDLE PATHS
if paths:
assert len(entries_added) == 0
added_files = list()
for filepath in self._iter_expand_paths(paths):
entries_added.append(store_path(filepath))
# END for each filepath
# END path handling
# HANDLE ENTRIES
if entries:
null_mode_entries = [ e for e in entries if e.mode == 0 ]
if null_mode_entries:
raise ValueError("At least one Entry has a null-mode - please use index.remove to remove files for clarity")
# END null mode should be remove
# HANLDE ENTRY OBJECT CREATION
# create objects if required, otherwise go with the existing shas
null_entries_indices = [ i for i,e in enumerate(entries) if e.binsha == Object.NULL_BIN_SHA ]
if null_entries_indices:
for ei in null_entries_indices:
null_entry = entries[ei]
new_entry = store_path(null_entry.path)
# update null entry
entries[ei] = BaseIndexEntry((null_entry.mode, new_entry.binsha, null_entry.stage, null_entry.path))
# END for each entry index
# END null_entry handling
# REWRITE PATHS
# If we have to rewrite the entries, do so now, after we have generated
# all object sha's
if path_rewriter:
for i,e in enumerate(entries):
entries[i] = BaseIndexEntry((e.mode, e.binsha, e.stage, path_rewriter(e)))
# END for each entry
# END handle path rewriting
# just go through the remaining entries and provide progress info
for i, entry in enumerate(entries):
progress_sent = i in null_entries_indices
if not progress_sent:
fprogress(entry.path, False, entry)
fprogress(entry.path, True, entry)
# END handle progress
# END for each enty
entries_added.extend(entries)
# END if there are base entries
# FINALIZE
# add the new entries to this instance
for entry in entries_added:
self.entries[(entry.path, 0)] = IndexEntry.from_base(entry)
if write:
self.write()
# END handle write
return entries_added
def _items_to_rela_paths(self, items):
"""Returns a list of repo-relative paths from the given items which
may be absolute or relative paths, entries or blobs"""
paths = list()
for item in items:
if isinstance(item, (BaseIndexEntry,(Blob, Submodule))):
paths.append(self._to_relative_path(item.path))
elif isinstance(item, basestring):
paths.append(self._to_relative_path(item))
else:
raise TypeError("Invalid item type: %r" % item)
# END for each item
return paths
@post_clear_cache
@default_index
def remove(self, items, working_tree=False, **kwargs):
"""Remove the given items from the index and optionally from
the working tree as well.
:param items:
Multiple types of items are supported which may be be freely mixed.
- path string
Remove the given path at all stages. If it is a directory, you must
specify the r=True keyword argument to remove all file entries
below it. If absolute paths are given, they will be converted
to a path relative to the git repository directory containing
the working tree
The path string may include globs, such as *.c.
- Blob Object
Only the path portion is used in this case.
- BaseIndexEntry or compatible type
The only relevant information here Yis the path. The stage is ignored.
:param working_tree:
If True, the entry will also be removed from the working tree, physically
removing the respective file. This may fail if there are uncommited changes
in it.
:param kwargs:
Additional keyword arguments to be passed to git-rm, such
as 'r' to allow recurive removal of
:return:
List(path_string, ...) list of repository relative paths that have
been removed effectively.
This is interesting to know in case you have provided a directory or
globs. Paths are relative to the repository. """
args = list()
if not working_tree:
args.append("--cached")
args.append("--")
# preprocess paths
paths = self._items_to_rela_paths(items)
removed_paths = self.repo.git.rm(args, paths, **kwargs).splitlines()
# process output to gain proper paths
# rm 'path'
return [ p[4:-1] for p in removed_paths ]
@post_clear_cache
@default_index
def move(self, items, skip_errors=False, **kwargs):
"""Rename/move the items, whereas the last item is considered the destination of
the move operation. If the destination is a file, the first item ( of two )
must be a file as well. If the destination is a directory, it may be preceeded
by one or more directories or files.
The working tree will be affected in non-bare repositories.
:parma items:
Multiple types of items are supported, please see the 'remove' method
for reference.
:param skip_errors:
If True, errors such as ones resulting from missing source files will
be skpped.
:param kwargs:
Additional arguments you would like to pass to git-mv, such as dry_run
or force.
:return:List(tuple(source_path_string, destination_path_string), ...)
A list of pairs, containing the source file moved as well as its
actual destination. Relative to the repository root.
:raise ValueErorr: If only one item was given
GitCommandError: If git could not handle your request"""
args = list()
if skip_errors:
args.append('-k')
paths = self._items_to_rela_paths(items)
if len(paths) < 2:
raise ValueError("Please provide at least one source and one destination of the move operation")
was_dry_run = kwargs.pop('dry_run', kwargs.pop('n', None))
kwargs['dry_run'] = True
# first execute rename in dryrun so the command tells us what it actually does
# ( for later output )
out = list()
mvlines = self.repo.git.mv(args, paths, **kwargs).splitlines()
# parse result - first 0:n/2 lines are 'checking ', the remaining ones
# are the 'renaming' ones which we parse
for ln in xrange(len(mvlines)/2, len(mvlines)):
tokens = mvlines[ln].split(' to ')
assert len(tokens) == 2, "Too many tokens in %s" % mvlines[ln]
# [0] = Renaming x
# [1] = y
out.append((tokens[0][9:], tokens[1]))
# END for each line to parse
# either prepare for the real run, or output the dry-run result
if was_dry_run:
return out
# END handle dryrun
# now apply the actual operation
kwargs.pop('dry_run')
self.repo.git.mv(args, paths, **kwargs)
return out
def commit(self, message, parent_commits=None, head=True):
"""Commit the current default index file, creating a commit object.
For more information on the arguments, see tree.commit.
:note:
If you have manually altered the .entries member of this instance,
don't forget to write() your changes to disk beforehand.
:return:
Commit object representing the new commit"""
tree = self.write_tree()
return Commit.create_from_tree(self.repo, tree, message, parent_commits, head)
@classmethod
def _flush_stdin_and_wait(cls, proc, ignore_stdout = False):
proc.stdin.flush()
proc.stdin.close()
stdout = ''
if not ignore_stdout:
stdout = proc.stdout.read()
proc.stdout.close()
proc.wait()
return stdout
@default_index
def checkout(self, paths=None, force=False, fprogress=lambda *args: None, **kwargs):
"""Checkout the given paths or all files from the version known to the index into
the working tree.
:note: Be sure you have written pending changes using the ``write`` method
in case you have altered the enties dictionary directly
:param paths:
If None, all paths in the index will be checked out. Otherwise an iterable
of relative or absolute paths or a single path pointing to files or directories
in the index is expected.
:param force:
If True, existing files will be overwritten even if they contain local modifications.
If False, these will trigger a CheckoutError.
:param fprogress:
see Index.add_ for signature and explanation.
The provided progress information will contain None as path and item if no
explicit paths are given. Otherwise progress information will be send
prior and after a file has been checked out
:param kwargs:
Additional arguments to be pasesd to git-checkout-index
:return:
iterable yielding paths to files which have been checked out and are
guaranteed to match the version stored in the index
:raise CheckoutError:
If at least one file failed to be checked out. This is a summary,
hence it will checkout as many files as it can anyway.
If one of files or directories do not exist in the index
( as opposed to the original git command who ignores them ).
Raise GitCommandError if error lines could not be parsed - this truly is
an exceptional state
.. note:: The checkout is limited to checking out the files in the
index. Files which are not in the index anymore and exist in
the working tree will not be deleted. This behaviour is fundamentally
different to *head.checkout*, i.e. if you want git-checkout like behaviour,
use head.checkout instead of index.checkout.
"""
args = ["--index"]
if force:
args.append("--force")
def handle_stderr(proc, iter_checked_out_files):
stderr = proc.stderr.read()
if not stderr:
return
# line contents:
# git-checkout-index: this already exists
failed_files = list()
failed_reasons = list()
unknown_lines = list()
endings = (' already exists', ' is not in the cache', ' does not exist at stage', ' is unmerged')
for line in stderr.splitlines():
if not line.startswith("git checkout-index: ") and not line.startswith("git-checkout-index: "):
is_a_dir = " is a directory"
unlink_issue = "unable to unlink old '"
already_exists_issue = ' already exists, no checkout' # created by entry.c:checkout_entry(...)
if line.endswith(is_a_dir):
failed_files.append(line[:-len(is_a_dir)])
failed_reasons.append(is_a_dir)
elif line.startswith(unlink_issue):
failed_files.append(line[len(unlink_issue):line.rfind("'")])
failed_reasons.append(unlink_issue)
elif line.endswith(already_exists_issue):
failed_files.append(line[:-len(already_exists_issue)])
failed_reasons.append(already_exists_issue)
else:
unknown_lines.append(line)
continue
# END special lines parsing
for e in endings:
if line.endswith(e):
failed_files.append(line[20:-len(e)])
failed_reasons.append(e)
break
# END if ending matches
# END for each possible ending
# END for each line
if unknown_lines:
raise GitCommandError(("git-checkout-index", ), 128, stderr)
if failed_files:
valid_files = list(set(iter_checked_out_files) - set(failed_files))
raise CheckoutError("Some files could not be checked out from the index due to local modifications", failed_files, valid_files, failed_reasons)
# END stderr handler
if paths is None:
args.append("--all")
kwargs['as_process'] = 1
fprogress(None, False, None)
proc = self.repo.git.checkout_index(*args, **kwargs)
proc.wait()
fprogress(None, True, None)