17
17
"""Tree classes, representing directory at point in time.
20
from __future__ import absolute_import
23
from collections.abc import deque
24
except ImportError: # python < 3.7
25
from collections import deque
27
from .lazy_import import lazy_import
28
lazy_import(globals(), """
21
from collections import deque
31
25
conflicts as _mod_conflicts,
35
30
revision as _mod_revision,
39
from breezy.i18n import gettext
47
from .inter import InterObject
54
class FileTimestampUnavailable(errors.BzrError):
56
_fmt = "The filestamp for %(path)s is not available."
60
def __init__(self, path):
64
class TreeEntry(object):
65
"""An entry that implements the minimum interface used by commands.
68
def __eq__(self, other):
69
# yes, this is ugly, TODO: best practice __eq__ style.
70
return (isinstance(other, TreeEntry)
71
and other.__class__ == self.__class__)
75
def kind_character(self):
79
class TreeDirectory(TreeEntry):
80
"""See TreeEntry. This is a directory in a working tree."""
84
def kind_character(self):
88
class TreeFile(TreeEntry):
89
"""See TreeEntry. This is a regular file in a working tree."""
93
def kind_character(self):
97
class TreeLink(TreeEntry):
98
"""See TreeEntry. This is a symlink in a working tree."""
102
def kind_character(self):
106
class TreeReference(TreeEntry):
107
"""See TreeEntry. This is a reference to a nested tree in a working tree."""
109
kind = 'tree-reference'
111
def kind_character(self):
33
from bzrlib.decorators import needs_read_lock
34
from bzrlib.errors import BzrError, NoSuchId
35
from bzrlib import errors
36
from bzrlib.inventory import InventoryFile
37
from bzrlib.inter import InterObject
38
from bzrlib.osutils import fingerprint_file
39
from bzrlib.symbol_versioning import deprecated_function, deprecated_in
40
from bzrlib.trace import note
115
43
class Tree(object):
122
50
* `RevisionTree` is a tree as recorded at some point in the past.
52
Trees contain an `Inventory` object, and also know how to retrieve
53
file texts mentioned in the inventory, either from a working
54
directory or from a store.
56
It is possible for trees to contain files that are not described
57
in their inventory or vice versa; for this use `filenames()`.
124
59
Trees can be compared, etc, regardless of whether they are working
125
60
trees or versioned trees.
128
def supports_rename_tracking(self):
129
"""Whether this tree supports rename tracking.
131
This defaults to True, but some implementations may want to override
136
def has_versioned_directories(self):
137
"""Whether this tree can contain explicitly versioned directories.
139
This defaults to True, but some implementations may want to override
144
63
def changes_from(self, other, want_unchanged=False, specific_files=None,
145
extra_trees=None, require_versioned=False, include_root=False,
146
want_unversioned=False):
64
extra_trees=None, require_versioned=False, include_root=False,
65
want_unversioned=False):
147
66
"""Return a TreeDelta of the changes from other to this tree.
149
68
:param other: A tree to compare with.
147
return iter(self.inventory)
218
149
def all_file_ids(self):
219
150
"""Iterate through all file ids, including ids for missing files."""
220
raise NotImplementedError(self.all_file_ids)
222
def all_versioned_paths(self):
223
"""Iterate through all paths, including paths for missing files."""
224
raise NotImplementedError(self.all_versioned_paths)
151
return set(self.inventory)
226
153
def id2path(self, file_id):
227
154
"""Return the path for a file id.
229
156
:raises NoSuchId:
231
raise NotImplementedError(self.id2path)
233
def iter_entries_by_dir(self, specific_files=None):
158
return self.inventory.id2path(file_id)
160
def is_control_filename(self, filename):
161
"""True if filename is the name of a control file in this tree.
163
:param filename: A filename within the tree. This is a relative path
164
from the root of this tree.
166
This is true IF and ONLY IF the filename is part of the meta data
167
that bzr controls in this tree. I.E. a random .bzr directory placed
168
on disk will not be a control file for this tree.
170
return self.bzrdir.is_control_filename(filename)
173
def iter_entries_by_dir(self, specific_file_ids=None, yield_parents=False):
234
174
"""Walk the tree in 'by_dir' order.
236
176
This will yield each entry in the tree as a (path, entry) tuple.
254
194
The yield order (ignoring root) would be::
256
195
a, f, a/b, a/d, a/b/c, a/d/e, f/g
258
raise NotImplementedError(self.iter_entries_by_dir)
260
def iter_child_entries(self, path):
261
"""Iterate over the children of a directory or tree reference.
263
:param path: Path of the directory
264
:raise NoSuchFile: When the path does not exist
265
:return: Iterator over entries in the directory
267
raise NotImplementedError(self.iter_child_entries)
269
def list_files(self, include_root=False, from_dir=None, recursive=True):
270
"""List all files in this tree.
272
:param include_root: Whether to include the entry for the tree root
273
:param from_dir: Directory under which to list files
274
:param recursive: Whether to list files recursively
275
:return: iterator over tuples of
276
(path, versioned, kind, inventory entry)
278
raise NotImplementedError(self.list_files)
197
:param yield_parents: If True, yield the parents from the root leading
198
down to specific_file_ids that have been requested. This has no
199
impact if specific_file_ids is None.
201
return self.inventory.iter_entries_by_dir(
202
specific_file_ids=specific_file_ids, yield_parents=yield_parents)
280
204
def iter_references(self):
281
205
if self.supports_tree_reference():
330
254
raise NotImplementedError(self._comparison_data)
332
def get_file(self, path):
333
"""Return a file object for the file path in the tree.
256
def _file_size(self, entry, stat_value):
257
raise NotImplementedError(self._file_size)
259
def _get_inventory(self):
260
return self._inventory
262
def get_file(self, file_id, path=None):
263
"""Return a file object for the file file_id in the tree.
265
If both file_id and path are defined, it is implementation defined as
266
to which one is used.
335
268
raise NotImplementedError(self.get_file)
337
def get_file_with_stat(self, path):
338
"""Get a file handle and stat object for path.
270
def get_file_with_stat(self, file_id, path=None):
271
"""Get a file handle and stat object for file_id.
340
273
The default implementation returns (self.get_file, None) for backwards
343
:param path: The path of the file.
276
:param file_id: The file id to read.
277
:param path: The path of the file, if it is known.
344
278
:return: A tuple (file_handle, stat_value_or_None). If the tree has
345
279
no stat facility, or need for a stat cache feedback during commit,
346
280
it may return None for the second element of the tuple.
348
return (self.get_file(path), None)
282
return (self.get_file(file_id, path), None)
350
def get_file_text(self, path):
284
def get_file_text(self, file_id, path=None):
351
285
"""Return the byte content of a file.
287
:param file_id: The file_id of the file.
353
288
:param path: The path of the file.
355
:returns: A single byte string for the whole file.
289
If both file_id and path are supplied, an implementation may use
357
with self.get_file(path) as my_file:
292
my_file = self.get_file(file_id, path)
358
294
return my_file.read()
360
def get_file_lines(self, path):
298
def get_file_lines(self, file_id, path=None):
361
299
"""Return the content of a file, as lines.
301
:param file_id: The file_id of the file.
363
302
:param path: The path of the file.
303
If both file_id and path are supplied, an implementation may use
365
return osutils.split_lines(self.get_file_text(path))
367
def get_file_verifier(self, path, stat_value=None):
368
"""Return a verifier for a file.
370
The default implementation returns a sha1.
306
return osutils.split_lines(self.get_file_text(file_id, path))
308
def get_file_mtime(self, file_id, path=None):
309
"""Return the modification time for a file.
311
:param file_id: The handle for this file.
372
312
:param path: The path that this file can be found at.
373
313
These must point to the same object.
374
:param stat_value: Optional stat value for the object
375
:return: Tuple with verifier name and verifier data
377
return ("SHA1", self.get_file_sha1(path, stat_value=stat_value))
379
def get_file_sha1(self, path, stat_value=None):
380
"""Return the SHA1 file for a file.
382
:note: callers should use get_file_verifier instead
383
where possible, as the underlying repository implementation may
384
have quicker access to a non-sha1 verifier.
386
:param path: The path that this file can be found at.
387
:param stat_value: Optional stat value for the object
389
raise NotImplementedError(self.get_file_sha1)
391
def get_file_mtime(self, path):
392
"""Return the modification time for a file.
394
:param path: The path that this file can be found at.
396
315
raise NotImplementedError(self.get_file_mtime)
398
def get_file_size(self, path):
317
def get_file_size(self, file_id):
399
318
"""Return the size of a file in bytes.
401
320
This applies only to regular files. If invoked on directories or
402
321
symlinks, it will return None.
322
:param file_id: The file-id of the file
404
324
raise NotImplementedError(self.get_file_size)
406
def is_executable(self, path):
407
"""Check if a file is executable.
409
:param path: The path that this file can be found at.
411
raise NotImplementedError(self.is_executable)
326
def get_file_by_path(self, path):
327
return self.get_file(self._inventory.path2id(path), path)
413
329
def iter_files_bytes(self, desired_files):
414
330
"""Iterate through file contents.
426
342
this implementation, it is a tuple containing a single bytestring with
427
343
the complete text of the file.
429
:param desired_files: a list of (path, identifier) pairs
345
:param desired_files: a list of (file_id, identifier) pairs
431
for path, identifier in desired_files:
347
for file_id, identifier in desired_files:
432
348
# We wrap the string in a tuple so that we can return an iterable
433
349
# of bytestrings. (Technically, a bytestring is also an iterable
434
350
# of bytestrings, but iterating through each character is not
436
cur_file = (self.get_file_text(path),)
352
cur_file = (self.get_file_text(file_id),)
437
353
yield identifier, cur_file
439
def get_symlink_target(self, path):
440
"""Get the target for a given path.
355
def get_symlink_target(self, file_id):
356
"""Get the target for a given file_id.
442
It is assumed that the caller already knows that path is referencing
358
It is assumed that the caller already knows that file_id is referencing
444
:param path: The path of the file.
360
:param file_id: Handle for the symlink entry.
445
361
:return: The path the symlink points to.
447
363
raise NotImplementedError(self.get_symlink_target)
365
def get_canonical_inventory_paths(self, paths):
366
"""Like get_canonical_inventory_path() but works on multiple items.
368
:param paths: A sequence of paths relative to the root of the tree.
369
:return: A list of paths, with each item the corresponding input path
370
adjusted to account for existing elements that match case
373
return list(self._yield_canonical_inventory_paths(paths))
375
def get_canonical_inventory_path(self, path):
376
"""Returns the first inventory item that case-insensitively matches path.
378
If a path matches exactly, it is returned. If no path matches exactly
379
but more than one path matches case-insensitively, it is implementation
380
defined which is returned.
382
If no path matches case-insensitively, the input path is returned, but
383
with as many path entries that do exist changed to their canonical
386
If you need to resolve many names from the same tree, you should
387
use get_canonical_inventory_paths() to avoid O(N) behaviour.
389
:param path: A paths relative to the root of the tree.
390
:return: The input path adjusted to account for existing elements
391
that match case insensitively.
393
return self._yield_canonical_inventory_paths([path]).next()
395
def _yield_canonical_inventory_paths(self, paths):
397
# First, if the path as specified exists exactly, just use it.
398
if self.path2id(path) is not None:
402
cur_id = self.get_root_id()
404
bit_iter = iter(path.split("/"))
408
for child in self.iter_children(cur_id):
410
# XXX: it seem like if the child is known to be in the
411
# tree, we shouldn't need to go from its id back to
412
# its path -- mbp 2010-02-11
414
# XXX: it seems like we could be more efficient
415
# by just directly looking up the original name and
416
# only then searching all children; also by not
417
# chopping paths so much. -- mbp 2010-02-11
418
child_base = os.path.basename(self.id2path(child))
419
if (child_base == elt):
420
# if we found an exact match, we can stop now; if
421
# we found an approximate match we need to keep
422
# searching because there might be an exact match
425
new_path = osutils.pathjoin(cur_path, child_base)
427
elif child_base.lower() == lelt:
429
new_path = osutils.pathjoin(cur_path, child_base)
431
# before a change is committed we can see this error...
436
# got to the end of this directory and no entries matched.
437
# Return what matched so far, plus the rest as specified.
438
cur_path = osutils.pathjoin(cur_path, elt, *list(bit_iter))
449
443
def get_root_id(self):
450
444
"""Return the file_id for the root of this tree."""
451
445
raise NotImplementedError(self.get_root_id)
453
def annotate_iter(self, path,
447
def annotate_iter(self, file_id,
454
448
default_revision=_mod_revision.CURRENT_REVISION):
455
449
"""Return an iterator of revision_id, line tuples.
457
451
For working trees (and mutable trees in general), the special
458
452
revision_id 'current:' will be used for lines that are new in this
459
453
tree, e.g. uncommitted changes.
460
:param path: The file to produce an annotated version from
454
:param file_id: The file to produce an annotated version from
461
455
:param default_revision: For lines that don't match a basis, mark them
462
456
with this revision id. Not all implementations will make use of
465
459
raise NotImplementedError(self.annotate_iter)
461
def _get_plan_merge_data(self, file_id, other, base):
462
from bzrlib import versionedfile
463
vf = versionedfile._PlanMergeVersionedFile(file_id)
464
last_revision_a = self._get_file_revision(file_id, vf, 'this:')
465
last_revision_b = other._get_file_revision(file_id, vf, 'other:')
467
last_revision_base = None
469
last_revision_base = base._get_file_revision(file_id, vf, 'base:')
470
return vf, last_revision_a, last_revision_b, last_revision_base
472
def plan_file_merge(self, file_id, other, base=None):
473
"""Generate a merge plan based on annotations.
475
If the file contains uncommitted changes in this tree, they will be
476
attributed to the 'current:' pseudo-revision. If the file contains
477
uncommitted changes in the other tree, they will be assigned to the
478
'other:' pseudo-revision.
480
data = self._get_plan_merge_data(file_id, other, base)
481
vf, last_revision_a, last_revision_b, last_revision_base = data
482
return vf.plan_merge(last_revision_a, last_revision_b,
485
def plan_file_lca_merge(self, file_id, other, base=None):
486
"""Generate a merge plan based lca-newness.
488
If the file contains uncommitted changes in this tree, they will be
489
attributed to the 'current:' pseudo-revision. If the file contains
490
uncommitted changes in the other tree, they will be assigned to the
491
'other:' pseudo-revision.
493
data = self._get_plan_merge_data(file_id, other, base)
494
vf, last_revision_a, last_revision_b, last_revision_base = data
495
return vf.plan_lca_merge(last_revision_a, last_revision_b,
467
498
def _iter_parent_trees(self):
468
499
"""Iterate through parent trees, defaulting to Tree.revision_tree."""
469
500
for revision_id in self.get_parent_ids():
472
503
except errors.NoSuchRevisionInTree:
473
504
yield self.repository.revision_tree(revision_id)
507
def _file_revision(revision_tree, file_id):
508
"""Determine the revision associated with a file in a given tree."""
509
revision_tree.lock_read()
511
return revision_tree.inventory[file_id].revision
513
revision_tree.unlock()
515
def _get_file_revision(self, file_id, vf, tree_revision):
516
"""Ensure that file_id, tree_revision is in vf to plan the merge."""
518
if getattr(self, '_repository', None) is None:
519
last_revision = tree_revision
520
parent_keys = [(file_id, self._file_revision(t, file_id)) for t in
521
self._iter_parent_trees()]
522
vf.add_lines((file_id, last_revision), parent_keys,
523
self.get_file(file_id).readlines())
524
repo = self.branch.repository
527
last_revision = self._file_revision(self, file_id)
528
base_vf = self._repository.texts
529
if base_vf not in vf.fallback_versionedfiles:
530
vf.fallback_versionedfiles.append(base_vf)
533
inventory = property(_get_inventory,
534
doc="Inventory of this Tree")
536
def _check_retrieved(self, ie, f):
539
fp = fingerprint_file(f)
542
if ie.text_size is not None:
543
if ie.text_size != fp['size']:
544
raise BzrError("mismatched size for file %r in %r" % (ie.file_id, self._store),
545
["inventory expects %d bytes" % ie.text_size,
546
"file is actually %d bytes" % fp['size'],
547
"store is probably damaged/corrupt"])
549
if ie.text_sha1 != fp['sha1']:
550
raise BzrError("wrong SHA-1 for file %r in %r" % (ie.file_id, self._store),
551
["inventory expects %s" % ie.text_sha1,
552
"file is actually %s" % fp['sha1'],
553
"store is probably damaged/corrupt"])
475
556
def path2id(self, path):
476
557
"""Return the id for path in this tree."""
477
raise NotImplementedError(self.path2id)
479
def is_versioned(self, path):
480
"""Check whether path is versioned.
482
:param path: Path to check
485
return self.path2id(path) is not None
487
def find_related_paths_across_trees(self, paths, trees=[],
488
require_versioned=True):
489
"""Find related paths in tree corresponding to specified filenames in any
492
All matches in all trees will be used, and all children of matched
493
directories will be used.
495
:param paths: The filenames to find related paths for (if None, returns
497
:param trees: The trees to find file_ids within
498
:param require_versioned: if true, all specified filenames must occur in
500
:return: a set of paths for the specified filenames and their children
503
raise NotImplementedError(self.find_related_paths_across_trees)
558
return self._inventory.path2id(path)
560
def paths2ids(self, paths, trees=[], require_versioned=True):
561
"""Return all the ids that can be reached by walking from paths.
563
Each path is looked up in this tree and any extras provided in
564
trees, and this is repeated recursively: the children in an extra tree
565
of a directory that has been renamed under a provided path in this tree
566
are all returned, even if none exist under a provided path in this
567
tree, and vice versa.
569
:param paths: An iterable of paths to start converting to ids from.
570
Alternatively, if paths is None, no ids should be calculated and None
571
will be returned. This is offered to make calling the api unconditional
572
for code that *might* take a list of files.
573
:param trees: Additional trees to consider.
574
:param require_versioned: If False, do not raise NotVersionedError if
575
an element of paths is not versioned in this tree and all of trees.
577
return find_ids_across_trees(paths, [self] + list(trees), require_versioned)
579
def iter_children(self, file_id):
580
entry = self.iter_entries_by_dir([file_id]).next()[1]
581
for child in getattr(entry, 'children', {}).itervalues():
505
584
def lock_read(self):
506
"""Lock this tree for multiple read only operations.
508
:return: A breezy.lock.LogicalLockResult.
510
return lock.LogicalLockResult(self.unlock)
512
587
def revision_tree(self, revision_id):
513
588
"""Obtain a revision tree for the revision revision_id.
642
720
searcher = default_searcher
645
def archive(self, format, name, root='', subdir=None,
647
"""Create an archive of this tree.
649
:param format: Format name (e.g. 'tar')
650
:param name: target file name
651
:param root: Root directory name (or None)
652
:param subdir: Subdirectory to export (or None)
653
:return: Iterator over archive chunks
655
from .archive import create_archive
656
with self.lock_read():
657
return create_archive(format, self, name, root,
658
subdir, force_mtime=force_mtime)
661
def versionable_kind(cls, kind):
662
"""Check if this tree support versioning a specific file kind."""
663
return (kind in ('file', 'directory', 'symlink', 'tree-reference'))
724
######################################################################
727
# TODO: Merge these two functions into a single one that can operate
728
# on either a whole tree or a set of files.
730
# TODO: Return the diff in order by filename, not by category or in
731
# random order. Can probably be done by lock-stepping through the
732
# filenames from both trees.
735
def file_status(filename, old_tree, new_tree):
736
"""Return single-letter status, old and new names for a file.
738
The complexity here is in deciding how to represent renames;
739
many complex cases are possible.
741
old_inv = old_tree.inventory
742
new_inv = new_tree.inventory
743
new_id = new_inv.path2id(filename)
744
old_id = old_inv.path2id(filename)
746
if not new_id and not old_id:
747
# easy: doesn't exist in either; not versioned at all
748
if new_tree.is_ignored(filename):
749
return 'I', None, None
751
return '?', None, None
753
# There is now a file of this name, great.
756
# There is no longer a file of this name, but we can describe
757
# what happened to the file that used to have
758
# this name. There are two possibilities: either it was
759
# deleted entirely, or renamed.
760
if new_inv.has_id(old_id):
761
return 'X', old_inv.id2path(old_id), new_inv.id2path(old_id)
763
return 'D', old_inv.id2path(old_id), None
765
# if the file_id is new in this revision, it is added
766
if new_id and not old_inv.has_id(new_id):
769
# if there used to be a file of this name, but that ID has now
770
# disappeared, it is deleted
771
if old_id and not new_inv.has_id(old_id):
777
@deprecated_function(deprecated_in((1, 9, 0)))
778
def find_renames(old_inv, new_inv):
779
for file_id in old_inv:
780
if file_id not in new_inv:
782
old_name = old_inv.id2path(file_id)
783
new_name = new_inv.id2path(file_id)
784
if old_name != new_name:
785
yield (old_name, new_name)
788
def find_ids_across_trees(filenames, trees, require_versioned=True):
789
"""Find the ids corresponding to specified filenames.
791
All matches in all trees will be used, and all children of matched
792
directories will be used.
794
:param filenames: The filenames to find file_ids for (if None, returns
796
:param trees: The trees to find file_ids within
797
:param require_versioned: if true, all specified filenames must occur in
799
:return: a set of file ids for the specified filenames and their children.
803
specified_path_ids = _find_ids_across_trees(filenames, trees,
805
return _find_children_across_trees(specified_path_ids, trees)
808
def _find_ids_across_trees(filenames, trees, require_versioned):
809
"""Find the ids corresponding to specified filenames.
811
All matches in all trees will be used, but subdirectories are not scanned.
813
:param filenames: The filenames to find file_ids for
814
:param trees: The trees to find file_ids within
815
:param require_versioned: if true, all specified filenames must occur in
817
:return: a set of file ids for the specified filenames
820
interesting_ids = set()
821
for tree_path in filenames:
824
file_id = tree.path2id(tree_path)
825
if file_id is not None:
826
interesting_ids.add(file_id)
829
not_versioned.append(tree_path)
830
if len(not_versioned) > 0 and require_versioned:
831
raise errors.PathsNotVersionedError(not_versioned)
832
return interesting_ids
835
def _find_children_across_trees(specified_ids, trees):
836
"""Return a set including specified ids and their children.
838
All matches in all trees will be used.
840
:param trees: The trees to find file_ids within
841
:return: a set containing all specified ids and their children
843
interesting_ids = set(specified_ids)
844
pending = interesting_ids
845
# now handle children of interesting ids
846
# we loop so that we handle all children of each id in both trees
847
while len(pending) > 0:
849
for file_id in pending:
851
if not tree.has_or_had_id(file_id):
853
for child_id in tree.iter_children(file_id):
854
if child_id not in interesting_ids:
855
new_pending.add(child_id)
856
interesting_ids.update(new_pending)
857
pending = new_pending
858
return interesting_ids
666
861
class InterTree(InterObject):
735
930
if source_kind != target_kind:
736
931
changed_content = True
737
932
elif source_kind == 'file':
738
if not self.file_content_matches(
739
source_path, target_path,
740
source_stat, target_stat):
933
if (self.source.get_file_sha1(file_id, source_path, source_stat) !=
934
self.target.get_file_sha1(file_id, target_path, target_stat)):
741
935
changed_content = True
742
936
elif source_kind == 'symlink':
743
if (self.source.get_symlink_target(source_path) !=
744
self.target.get_symlink_target(target_path)):
937
if (self.source.get_symlink_target(file_id) !=
938
self.target.get_symlink_target(file_id)):
745
939
changed_content = True
746
elif source_kind == 'tree-reference':
747
if (self.source.get_reference_revision(source_path)
748
!= self.target.get_reference_revision(target_path)):
940
# XXX: Yes, the indentation below is wrong. But fixing it broke
941
# test_merge.TestMergerEntriesLCAOnDisk.
942
# test_nested_tree_subtree_renamed_and_modified. We'll wait for
943
# the fix from bzr.dev -- vila 2009026
944
elif source_kind == 'tree-reference':
945
if (self.source.get_reference_revision(file_id, source_path)
946
!= self.target.get_reference_revision(file_id, target_path)):
749
947
changed_content = True
750
948
parent = (source_parent, target_parent)
751
949
name = (source_name, target_name)
752
950
executable = (source_executable, target_executable)
753
if (changed_content is not False or versioned[0] != versioned[1] or
754
parent[0] != parent[1] or name[0] != name[1] or
755
executable[0] != executable[1]):
951
if (changed_content is not False or versioned[0] != versioned[1]
952
or parent[0] != parent[1] or name[0] != name[1] or
953
executable[0] != executable[1]):
759
957
return (file_id, (source_path, target_path), changed_content,
760
958
versioned, parent, name, kind, executable), changes
762
961
def compare(self, want_unchanged=False, specific_files=None,
763
extra_trees=None, require_versioned=False, include_root=False,
764
want_unversioned=False):
962
extra_trees=None, require_versioned=False, include_root=False,
963
want_unversioned=False):
765
964
"""Return the changes from source to target.
767
966
:return: A TreeDelta.
781
980
trees = (self.source,)
782
981
if extra_trees is not None:
783
982
trees = trees + tuple(extra_trees)
784
with self.lock_read():
785
return delta._compare_trees(self.source, self.target, want_unchanged,
786
specific_files, include_root, extra_trees=extra_trees,
787
require_versioned=require_versioned,
788
want_unversioned=want_unversioned)
983
# target is usually the newer tree:
984
specific_file_ids = self.target.paths2ids(specific_files, trees,
985
require_versioned=require_versioned)
986
if specific_files and not specific_file_ids:
987
# All files are unversioned, so just return an empty delta
988
# _compare_trees would think we want a complete delta
989
result = delta.TreeDelta()
990
fake_entry = InventoryFile('unused', 'unused', 'unused')
991
result.unversioned = [(path, None,
992
self.target._comparison_data(fake_entry, path)[0]) for path in
995
return delta._compare_trees(self.source, self.target, want_unchanged,
996
specific_files, include_root, extra_trees=extra_trees,
997
require_versioned=require_versioned,
998
want_unversioned=want_unversioned)
790
1000
def iter_changes(self, include_unchanged=False,
791
specific_files=None, pb=None, extra_trees=[],
792
require_versioned=True, want_unversioned=False):
1001
specific_files=None, pb=None, extra_trees=[],
1002
require_versioned=True, want_unversioned=False):
793
1003
"""Generate an iterator of changes between trees.
795
1005
A tuple is returned:
851
1055
seen_dirs = set()
852
1056
if want_unversioned:
853
1057
all_unversioned = sorted([(p.split('/'), p) for p in
855
if specific_files is None or
856
osutils.is_inside_any(specific_files, p)])
1058
self.target.extras()
1059
if specific_files is None or
1060
osutils.is_inside_any(specific_files, p)])
857
1061
all_unversioned = deque(all_unversioned)
859
1063
all_unversioned = deque()
861
1065
from_entries_by_dir = list(self.source.iter_entries_by_dir(
862
specific_files=source_specific_files))
1066
specific_file_ids=specific_file_ids))
863
1067
from_data = dict((e.file_id, (p, e)) for p, e in from_entries_by_dir)
864
1068
to_entries_by_dir = list(self.target.iter_entries_by_dir(
865
specific_files=target_specific_files))
1069
specific_file_ids=specific_file_ids))
866
1070
num_entries = len(from_entries_by_dir) + len(to_entries_by_dir)
868
1072
# the unversioned path lookup only occurs on real trees - where there
869
1073
# can be extras. So the fake_entry is solely used to look up
870
1074
# executable it values when execute is not supported.
871
fake_entry = TreeFile()
1075
fake_entry = InventoryFile('unused', 'unused', 'unused')
872
1076
for target_path, target_entry in to_entries_by_dir:
873
1077
while (all_unversioned and
874
all_unversioned[0][0] < target_path.split('/')):
1078
all_unversioned[0][0] < target_path.split('/')):
875
1079
unversioned_path = all_unversioned.popleft()
876
1080
target_kind, target_executable, target_stat = \
877
self.target._comparison_data(
878
fake_entry, unversioned_path[1])
1081
self.target._comparison_data(fake_entry, unversioned_path[1])
879
1082
yield (None, (None, unversioned_path[1]), True, (False, False),
881
(None, unversioned_path[0][-1]),
883
(None, target_executable))
1084
(None, unversioned_path[0][-1]),
1085
(None, target_kind),
1086
(None, target_executable))
884
1087
source_path, source_entry = from_data.get(target_entry.file_id,
886
1089
result, changes = self._changes_from_entries(source_entry,
887
target_entry, source_path=source_path, target_path=target_path)
1090
target_entry, source_path=source_path, target_path=target_path)
888
1091
to_paths[result[0]] = result[1][1]
889
1092
entry_count += 1
890
1093
if result[3][0]:
1037
1239
precise_file_ids.add(new_parent_id)
1039
1241
if (result[6][0] == 'directory' and
1040
result[6][1] != 'directory'):
1242
result[6][1] != 'directory'):
1041
1243
# This stopped being a directory, the old children have
1042
1244
# to be included.
1043
if source_entry is None:
1245
if old_entry is None:
1044
1246
# Reusing a discarded change.
1045
source_entry = self._get_entry(
1046
self.source, result[1][0])
1047
precise_file_ids.update(
1049
for child in self.source.iter_child_entries(result[1][0]))
1247
old_entry = self._get_entry(self.source, file_id)
1248
for child in old_entry.children.values():
1249
precise_file_ids.add(child.file_id)
1050
1250
changed_file_ids.add(result[0])
1053
def file_content_matches(
1054
self, source_path, target_path,
1055
source_stat=None, target_stat=None):
1056
"""Check if two files are the same in the source and target trees.
1058
This only checks that the contents of the files are the same,
1059
it does not touch anything else.
1061
:param source_path: Path of the file in the source tree
1062
:param target_path: Path of the file in the target tree
1063
:param source_file_id: Optional file id of the file in the source tree
1064
:param target_file_id: Optional file id of the file in the target tree
1065
:param source_stat: Optional stat value of the file in the source tree
1066
:param target_stat: Optional stat value of the file in the target tree
1067
:return: Boolean indicating whether the files have the same contents
1069
with self.lock_read():
1070
source_verifier_kind, source_verifier_data = (
1071
self.source.get_file_verifier(source_path, source_stat))
1072
target_verifier_kind, target_verifier_data = (
1073
self.target.get_file_verifier(
1074
target_path, target_stat))
1075
if source_verifier_kind == target_verifier_kind:
1076
return (source_verifier_data == target_verifier_data)
1077
# Fall back to SHA1 for now
1078
if source_verifier_kind != "SHA1":
1079
source_sha1 = self.source.get_file_sha1(
1080
source_path, source_file_id, source_stat)
1082
source_sha1 = source_verifier_data
1083
if target_verifier_kind != "SHA1":
1084
target_sha1 = self.target.get_file_sha1(
1085
target_path, target_file_id, target_stat)
1087
target_sha1 = target_verifier_data
1088
return (source_sha1 == target_sha1)
1091
InterTree.register_optimiser(InterTree)
1094
1254
class MultiWalker(object):
1095
1255
"""Walk multiple trees simultaneously, getting combined results."""
1313
1473
# the lookup_by_file_id will be removing anything processed
1314
1474
# from the extras cache
1315
1475
other_extra.pop(file_id)
1316
other_values = [(None, None)] * idx
1476
other_values = [(None, None) for i in xrange(idx)]
1317
1477
other_values.append((other_path, other_ie))
1318
for alt_idx, alt_extra in enumerate(self._others_extra[idx + 1:]):
1478
for alt_idx, alt_extra in enumerate(self._others_extra[idx+1:]):
1319
1479
alt_idx = alt_idx + idx + 1
1320
1480
alt_extra = self._others_extra[alt_idx]
1321
1481
alt_tree = self._other_trees[alt_idx]
1322
1482
other_values.append(self._lookup_by_file_id(
1323
alt_extra, alt_tree, file_id))
1483
alt_extra, alt_tree, file_id))
1324
1484
yield other_path, file_id, None, other_values
1327
def find_previous_paths(from_tree, to_tree, paths):
1328
"""Find previous tree paths.
1330
:param from_tree: From tree
1331
:param to_tree: To tree
1332
:param paths: Iterable over paths to search for
1333
:return: Dictionary mapping from from_tree paths to paths in to_tree, or
1334
None if there is no equivalent path.
1338
ret[path] = find_previous_path(from_tree, to_tree, path)
1342
def find_previous_path(from_tree, to_tree, path, file_id=None):
1343
"""Find previous tree path.
1345
:param from_tree: From tree
1346
:param to_tree: To tree
1347
:param path: Path to search for
1348
:return: path in to_tree, or None if there is no equivalent path.
1351
file_id = from_tree.path2id(path)
1353
raise errors.NoSuchFile(path)
1355
return to_tree.id2path(file_id)
1356
except errors.NoSuchId:
1360
def get_canonical_path(tree, path, normalize):
1361
"""Find the canonical path of an item, ignoring case.
1363
:param tree: Tree to traverse
1364
:param path: Case-insensitive path to look up
1365
:param normalize: Function to normalize a filename for comparison
1366
:return: The canonical path
1370
bit_iter = iter(path.split("/"))
1371
for elt in bit_iter:
1372
lelt = normalize(elt)
1375
for child in tree.iter_child_entries(cur_path):
1377
if child.name == elt:
1378
# if we found an exact match, we can stop now; if
1379
# we found an approximate match we need to keep
1380
# searching because there might be an exact match
1382
new_path = osutils.pathjoin(cur_path, child.name)
1384
elif normalize(child.name) == lelt:
1385
new_path = osutils.pathjoin(cur_path, child.name)
1386
except errors.NoSuchId:
1387
# before a change is committed we can see this error...
1389
except errors.NotADirectory:
1394
# got to the end of this directory and no entries matched.
1395
# Return what matched so far, plus the rest as specified.
1396
cur_path = osutils.pathjoin(cur_path, elt, *list(bit_iter))
added
removed
bzrlib/tree.py
