17
17
"""Tree classes, representing directory at point in time.
20
from __future__ import absolute_import
21
from collections import deque
24
from .lazy_import import lazy_import
25
lazy_import(globals(), """
25
29
conflicts as _mod_conflicts,
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33
revision as _mod_revision,
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from bzrlib.decorators import needs_read_lock
34
from bzrlib.errors import BzrError, NoSuchId
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from bzrlib import errors
36
from bzrlib.inventory import InventoryFile
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from bzrlib.inter import InterObject
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from bzrlib.osutils import fingerprint_file
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from bzrlib.symbol_versioning import deprecated_function, deprecated_in
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from bzrlib.trace import note
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from breezy.i18n import gettext
45
from .inter import InterObject
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class FileTimestampUnavailable(errors.BzrError):
54
_fmt = "The filestamp for %(path)s is not available."
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def __init__(self, path):
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class TreeEntry(object):
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"""An entry that implements the minimum interface used by commands.
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def __eq__(self, other):
67
# yes, this is ugly, TODO: best practice __eq__ style.
68
return (isinstance(other, TreeEntry)
69
and other.__class__ == self.__class__)
71
def kind_character(self):
75
class TreeDirectory(TreeEntry):
76
"""See TreeEntry. This is a directory in a working tree."""
78
def kind_character(self):
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class TreeFile(TreeEntry):
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"""See TreeEntry. This is a regular file in a working tree."""
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def kind_character(self):
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class TreeLink(TreeEntry):
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"""See TreeEntry. This is a symlink in a working tree."""
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def kind_character(self):
96
class TreeReference(TreeEntry):
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"""See TreeEntry. This is a reference to a nested tree in a working tree."""
99
def kind_character(self):
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103
class Tree(object):
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return iter(self.inventory)
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206
def all_file_ids(self):
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"""Iterate through all file ids, including ids for missing files."""
151
return set(self.inventory)
208
raise NotImplementedError(self.all_file_ids)
210
def all_versioned_paths(self):
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"""Iterate through all paths, including paths for missing files."""
212
raise NotImplementedError(self.all_versioned_paths)
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214
def id2path(self, file_id):
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"""Return the path for a file id.
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217
:raises NoSuchId:
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return self.inventory.id2path(file_id)
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def is_control_filename(self, filename):
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"""True if filename is the name of a control file in this tree.
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:param filename: A filename within the tree. This is a relative path
164
from the root of this tree.
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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
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on disk will not be a control file for this tree.
170
return self.bzrdir.is_control_filename(filename)
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def iter_entries_by_dir(self, specific_file_ids=None, yield_parents=False):
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raise NotImplementedError(self.id2path)
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def iter_entries_by_dir(self, specific_files=None):
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"""Walk the tree in 'by_dir' order.
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This will yield each entry in the tree as a (path, entry) tuple.
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The yield order (ignoring root) would be::
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a, f, a/b, a/d, a/b/c, a/d/e, f/g
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:param yield_parents: If True, yield the parents from the root leading
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down to specific_file_ids that have been requested. This has no
199
impact if specific_file_ids is None.
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return self.inventory.iter_entries_by_dir(
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specific_file_ids=specific_file_ids, yield_parents=yield_parents)
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raise NotImplementedError(self.iter_entries_by_dir)
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def iter_child_entries(self, path):
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"""Iterate over the children of a directory or tree reference.
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:param path: Path of the directory
252
:raise NoSuchFile: When the path does not exist
253
:return: Iterator over entries in the directory
255
raise NotImplementedError(self.iter_child_entries)
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def list_files(self, include_root=False, from_dir=None, recursive=True):
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"""List all files in this tree.
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:param include_root: Whether to include the entry for the tree root
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:param from_dir: Directory under which to list files
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:param recursive: Whether to list files recursively
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:return: iterator over tuples of (path, versioned, kind, file_id,
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raise NotImplementedError(self.list_files)
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268
def iter_references(self):
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269
if self.supports_tree_reference():
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raise NotImplementedError(self._comparison_data)
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def _file_size(self, entry, stat_value):
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raise NotImplementedError(self._file_size)
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def _get_inventory(self):
260
return self._inventory
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def get_file(self, file_id, path=None):
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"""Return a file object for the file file_id in the tree.
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If both file_id and path are defined, it is implementation defined as
266
to which one is used.
320
def get_file(self, path):
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"""Return a file object for the file path in the tree.
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raise NotImplementedError(self.get_file)
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def get_file_with_stat(self, file_id, path=None):
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"""Get a file handle and stat object for file_id.
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def get_file_with_stat(self, path):
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"""Get a file handle and stat object for path.
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The default implementation returns (self.get_file, None) for backwards
276
:param file_id: The file id to read.
277
:param path: The path of the file, if it is known.
331
:param path: The path of the file.
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332
:return: A tuple (file_handle, stat_value_or_None). If the tree has
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no stat facility, or need for a stat cache feedback during commit,
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it may return None for the second element of the tuple.
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return (self.get_file(file_id, path), None)
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return (self.get_file(path), None)
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def get_file_text(self, file_id, path=None):
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def get_file_text(self, path):
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"""Return the byte content of a file.
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:param file_id: The file_id of the file.
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:param path: The path of the file.
289
If both file_id and path are supplied, an implementation may use
343
:returns: A single byte string for the whole file.
292
my_file = self.get_file(file_id, path)
345
with self.get_file(path) as my_file:
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346
return my_file.read()
298
def get_file_lines(self, file_id, path=None):
348
def get_file_lines(self, path):
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"""Return the content of a file, as lines.
301
:param file_id: The file_id of the file.
302
351
:param path: The path of the file.
303
If both file_id and path are supplied, an implementation may use
306
return osutils.split_lines(self.get_file_text(file_id, path))
308
def get_file_mtime(self, file_id, path=None):
353
return osutils.split_lines(self.get_file_text(path))
355
def get_file_verifier(self, path, stat_value=None):
356
"""Return a verifier for a file.
358
The default implementation returns a sha1.
360
:param path: The path that this file can be found at.
361
These must point to the same object.
362
:param stat_value: Optional stat value for the object
363
:return: Tuple with verifier name and verifier data
365
return ("SHA1", self.get_file_sha1(path, stat_value=stat_value))
367
def get_file_sha1(self, path, stat_value=None):
368
"""Return the SHA1 file for a file.
370
:note: callers should use get_file_verifier instead
371
where possible, as the underlying repository implementation may
372
have quicker access to a non-sha1 verifier.
374
:param path: The path that this file can be found at.
375
:param stat_value: Optional stat value for the object
377
raise NotImplementedError(self.get_file_sha1)
379
def get_file_mtime(self, path):
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"""Return the modification time for a file.
311
:param file_id: The handle for this file.
312
382
:param path: The path that this file can be found at.
313
These must point to the same object.
315
384
raise NotImplementedError(self.get_file_mtime)
317
def get_file_size(self, file_id):
386
def get_file_size(self, path):
318
387
"""Return the size of a file in bytes.
320
389
This applies only to regular files. If invoked on directories or
321
390
symlinks, it will return None.
322
:param file_id: The file-id of the file
324
392
raise NotImplementedError(self.get_file_size)
326
def get_file_by_path(self, path):
327
return self.get_file(self._inventory.path2id(path), path)
394
def is_executable(self, path):
395
"""Check if a file is executable.
397
:param path: The path that this file can be found at.
399
raise NotImplementedError(self.is_executable)
329
401
def iter_files_bytes(self, desired_files):
330
402
"""Iterate through file contents.
342
414
this implementation, it is a tuple containing a single bytestring with
343
415
the complete text of the file.
345
:param desired_files: a list of (file_id, identifier) pairs
417
:param desired_files: a list of (path, identifier) pairs
347
for file_id, identifier in desired_files:
419
for path, identifier in desired_files:
348
420
# We wrap the string in a tuple so that we can return an iterable
349
421
# of bytestrings. (Technically, a bytestring is also an iterable
350
422
# of bytestrings, but iterating through each character is not
352
cur_file = (self.get_file_text(file_id),)
424
cur_file = (self.get_file_text(path),)
353
425
yield identifier, cur_file
355
def get_symlink_target(self, file_id):
356
"""Get the target for a given file_id.
427
def get_symlink_target(self, path):
428
"""Get the target for a given path.
358
It is assumed that the caller already knows that file_id is referencing
430
It is assumed that the caller already knows that path is referencing
360
:param file_id: Handle for the symlink entry.
432
:param path: The path of the file.
361
433
:return: The path the symlink points to.
363
435
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))
443
437
def get_root_id(self):
444
438
"""Return the file_id for the root of this tree."""
445
439
raise NotImplementedError(self.get_root_id)
447
def annotate_iter(self, file_id,
441
def annotate_iter(self, path,
448
442
default_revision=_mod_revision.CURRENT_REVISION):
449
443
"""Return an iterator of revision_id, line tuples.
451
445
For working trees (and mutable trees in general), the special
452
446
revision_id 'current:' will be used for lines that are new in this
453
447
tree, e.g. uncommitted changes.
454
:param file_id: The file to produce an annotated version from
448
:param path: The file to produce an annotated version from
455
449
:param default_revision: For lines that don't match a basis, mark them
456
450
with this revision id. Not all implementations will make use of
459
453
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,
498
455
def _iter_parent_trees(self):
499
456
"""Iterate through parent trees, defaulting to Tree.revision_tree."""
500
457
for revision_id in self.get_parent_ids():
503
460
except errors.NoSuchRevisionInTree:
504
461
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"])
556
463
def path2id(self, path):
557
464
"""Return the id for path in this tree."""
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():
465
raise NotImplementedError(self.path2id)
467
def is_versioned(self, path):
468
"""Check whether path is versioned.
470
:param path: Path to check
473
return self.path2id(path) is not None
475
def find_related_paths_across_trees(self, paths, trees=[],
476
require_versioned=True):
477
"""Find related paths in tree corresponding to specified filenames in any
480
All matches in all trees will be used, and all children of matched
481
directories will be used.
483
:param paths: The filenames to find related paths for (if None, returns
485
:param trees: The trees to find file_ids within
486
:param require_versioned: if true, all specified filenames must occur in
488
:return: a set of paths for the specified filenames and their children
491
raise NotImplementedError(self.find_related_paths_across_trees)
584
493
def lock_read(self):
494
"""Lock this tree for multiple read only operations.
496
:return: A breezy.lock.LogicalLockResult.
498
return lock.LogicalLockResult(self.unlock)
587
500
def revision_tree(self, revision_id):
588
501
"""Obtain a revision tree for the revision revision_id.
720
629
searcher = default_searcher
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
632
def archive(self, format, name, root='', subdir=None,
634
"""Create an archive of this tree.
636
:param format: Format name (e.g. 'tar')
637
:param name: target file name
638
:param root: Root directory name (or None)
639
:param subdir: Subdirectory to export (or None)
640
:return: Iterator over archive chunks
642
from .archive import create_archive
643
with self.lock_read():
644
return create_archive(format, self, name, root,
645
subdir, force_mtime=force_mtime)
648
def versionable_kind(cls, kind):
649
"""Check if this tree support versioning a specific file kind."""
650
return (kind in ('file', 'directory', 'symlink', 'tree-reference'))
861
653
class InterTree(InterObject):
930
722
if source_kind != target_kind:
931
723
changed_content = True
932
724
elif source_kind == 'file':
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)):
725
if not self.file_content_matches(
726
source_path, target_path,
727
source_stat, target_stat):
935
728
changed_content = True
936
729
elif source_kind == 'symlink':
937
if (self.source.get_symlink_target(file_id) !=
938
self.target.get_symlink_target(file_id)):
730
if (self.source.get_symlink_target(source_path) !=
731
self.target.get_symlink_target(target_path)):
939
732
changed_content = True
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)):
733
elif source_kind == 'tree-reference':
734
if (self.source.get_reference_revision(source_path)
735
!= self.target.get_reference_revision(target_path)):
947
736
changed_content = True
948
737
parent = (source_parent, target_parent)
949
738
name = (source_name, target_name)
980
768
trees = (self.source,)
981
769
if extra_trees is not None:
982
770
trees = trees + tuple(extra_trees)
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)
771
with self.lock_read():
772
return delta._compare_trees(self.source, self.target, want_unchanged,
773
specific_files, include_root, extra_trees=extra_trees,
774
require_versioned=require_versioned,
775
want_unversioned=want_unversioned)
1000
777
def iter_changes(self, include_unchanged=False,
1001
778
specific_files=None, pb=None, extra_trees=[],
1239
1021
precise_file_ids.add(new_parent_id)
1241
1023
if (result[6][0] == 'directory' and
1242
result[6][1] != 'directory'):
1024
result[6][1] != 'directory'):
1243
1025
# This stopped being a directory, the old children have
1244
1026
# to be included.
1245
if old_entry is None:
1027
if source_entry is None:
1246
1028
# Reusing a discarded change.
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)
1029
source_entry = self._get_entry(self.source, result[1][0])
1030
precise_file_ids.update(
1032
for child in self.source.iter_child_entries(result[1][0]))
1250
1033
changed_file_ids.add(result[0])
1036
def file_content_matches(
1037
self, source_path, target_path,
1038
source_stat=None, target_stat=None):
1039
"""Check if two files are the same in the source and target trees.
1041
This only checks that the contents of the files are the same,
1042
it does not touch anything else.
1044
:param source_path: Path of the file in the source tree
1045
:param target_path: Path of the file in the target tree
1046
:param source_file_id: Optional file id of the file in the source tree
1047
:param target_file_id: Optional file id of the file in the target tree
1048
:param source_stat: Optional stat value of the file in the source tree
1049
:param target_stat: Optional stat value of the file in the target tree
1050
:return: Boolean indicating whether the files have the same contents
1052
with self.lock_read():
1053
source_verifier_kind, source_verifier_data = (
1054
self.source.get_file_verifier(source_path, source_stat))
1055
target_verifier_kind, target_verifier_data = (
1056
self.target.get_file_verifier(
1057
target_path, target_stat))
1058
if source_verifier_kind == target_verifier_kind:
1059
return (source_verifier_data == target_verifier_data)
1060
# Fall back to SHA1 for now
1061
if source_verifier_kind != "SHA1":
1062
source_sha1 = self.source.get_file_sha1(
1063
source_path, source_file_id, source_stat)
1065
source_sha1 = source_verifier_data
1066
if target_verifier_kind != "SHA1":
1067
target_sha1 = self.target.get_file_sha1(
1068
target_path, target_file_id, target_stat)
1070
target_sha1 = target_verifier_data
1071
return (source_sha1 == target_sha1)
1073
InterTree.register_optimiser(InterTree)
1254
1076
class MultiWalker(object):
1255
1077
"""Walk multiple trees simultaneously, getting combined results."""
1482
1304
other_values.append(self._lookup_by_file_id(
1483
1305
alt_extra, alt_tree, file_id))
1484
1306
yield other_path, file_id, None, other_values
1309
def find_previous_paths(from_tree, to_tree, paths):
1310
"""Find previous tree paths.
1312
:param from_tree: From tree
1313
:param to_tree: To tree
1314
:param paths: Iterable over paths to search for
1315
:return: Dictionary mapping from from_tree paths to paths in to_tree, or
1316
None if there is no equivalent path.
1320
ret[path] = find_previous_path(from_tree, to_tree, path)
1324
def find_previous_path(from_tree, to_tree, path, file_id=None):
1325
"""Find previous tree path.
1327
:param from_tree: From tree
1328
:param to_tree: To tree
1329
:param path: Path to search for
1330
:return: path in to_tree, or None if there is no equivalent path.
1333
file_id = from_tree.path2id(path)
1335
raise errors.NoSuchFile(path)
1337
return to_tree.id2path(file_id)
1338
except errors.NoSuchId:
1342
def get_canonical_path(tree, path, normalize):
1343
"""Find the canonical path of an item, ignoring case.
1345
:param tree: Tree to traverse
1346
:param path: Case-insensitive path to look up
1347
:param normalize: Function to normalize a filename for comparison
1348
:return: The canonical path
1351
cur_id = tree.get_root_id()
1353
bit_iter = iter(path.split("/"))
1354
for elt in bit_iter:
1355
lelt = normalize(elt)
1358
for child in tree.iter_child_entries(cur_path, cur_id):
1360
if child.name == elt:
1361
# if we found an exact match, we can stop now; if
1362
# we found an approximate match we need to keep
1363
# searching because there might be an exact match
1365
cur_id = child.file_id
1366
new_path = osutils.pathjoin(cur_path, child.name)
1368
elif normalize(child.name) == lelt:
1369
cur_id = child.file_id
1370
new_path = osutils.pathjoin(cur_path, child.name)
1371
except errors.NoSuchId:
1372
# before a change is committed we can see this error...
1374
except errors.NotADirectory:
1379
# got to the end of this directory and no entries matched.
1380
# Return what matched so far, plus the rest as specified.
1381
cur_path = osutils.pathjoin(cur_path, elt, *list(bit_iter))
added
removed
breezy/tree.py
