50
53
trees or versioned trees.
56
def changes_from(self, other, want_unchanged=False, specific_files=None,
57
extra_trees=None, require_versioned=False):
58
"""Return a TreeDelta of the changes from other to this tree.
60
:param other: A tree to compare with.
61
:param specific_files: An optional list of file paths to restrict the
62
comparison to. When mapping filenames to ids, all matches in all
63
trees (including optional extra_trees) are used, and all children of
64
matched directories are included.
65
:param want_unchanged: An optional boolean requesting the inclusion of
66
unchanged entries in the result.
67
:param extra_trees: An optional list of additional trees to use when
68
mapping the contents of specific_files (paths) to file_ids.
69
:param require_versioned: An optional boolean (defaults to False). When
70
supplied and True all the 'specific_files' must be versioned, or
71
a PathsNotVersionedError will be thrown.
73
The comparison will be performed by an InterTree object looked up on
76
# Martin observes that Tree.changes_from returns a TreeDelta and this
77
# may confuse people, because the class name of the returned object is
78
# a synonym of the object referenced in the method name.
79
return InterTree.get(other, self).compare(
80
want_unchanged=want_unchanged,
81
specific_files=specific_files,
82
extra_trees=extra_trees,
83
require_versioned=require_versioned,
53
86
def conflicts(self):
54
87
"""Get a list of the conflicts in the tree.
73
106
def has_id(self, file_id):
74
107
return self.inventory.has_id(file_id)
109
__contains__ = has_id
76
111
def has_or_had_id(self, file_id):
77
112
if file_id == self.inventory.root.file_id:
79
114
return self.inventory.has_id(file_id)
83
116
def __iter__(self):
84
117
return iter(self.inventory)
86
119
def id2path(self, file_id):
87
120
return self.inventory.id2path(file_id)
122
def iter_entries_by_dir(self):
123
"""Walk the tree in 'by_dir' order.
125
This will yield each entry in the tree as a (path, entry) tuple. The
126
order that they are yielded is: the contents of a directory are
127
preceeded by the parent of a directory, and all the contents of a
128
directory are grouped together.
130
return self.inventory.iter_entries_by_dir()
89
132
def kind(self, file_id):
90
133
raise NotImplementedError("subclasses must implement kind")
146
189
# are not versioned.
147
190
pred = self.inventory.has_filename
148
191
return set((p for p in paths if not pred(p)))
151
class RevisionTree(Tree):
152
"""Tree viewing a previous revision.
154
File text can be retrieved from the text store.
156
TODO: Some kind of `__repr__` method, but a good one
157
probably means knowing the branch and revision number,
158
or at least passing a description to the constructor.
161
def __init__(self, branch, inv, revision_id):
162
# for compatability the 'branch' parameter has not been renamed to
163
# repository at this point. However, we should change RevisionTree's
164
# construction to always be via Repository and not via direct
165
# construction - this will mean that we can change the constructor
166
# with much less chance of breaking client code.
167
self._repository = branch
168
self._weave_store = branch.weave_store
169
self._inventory = inv
170
self._revision_id = revision_id
172
def get_parent_ids(self):
173
"""See Tree.get_parent_ids.
175
A RevisionTree's parents match the revision graph.
177
parent_ids = self._repository.get_revision(self._revision_id).parent_ids
180
def get_revision_id(self):
181
"""Return the revision id associated with this tree."""
182
return self._revision_id
184
def get_weave(self, file_id):
185
return self._weave_store.get_weave(file_id,
186
self._repository.get_transaction())
188
def get_file_lines(self, file_id):
189
ie = self._inventory[file_id]
190
weave = self.get_weave(file_id)
191
return weave.get_lines(ie.revision)
193
def get_file_text(self, file_id):
194
return ''.join(self.get_file_lines(file_id))
196
def get_file(self, file_id):
197
return StringIO(self.get_file_text(file_id))
199
def get_file_size(self, file_id):
200
return self._inventory[file_id].text_size
202
def get_file_sha1(self, file_id, path=None):
203
ie = self._inventory[file_id]
204
if ie.kind == "file":
208
def get_file_mtime(self, file_id, path=None):
209
ie = self._inventory[file_id]
210
revision = self._repository.get_revision(ie.revision)
211
return revision.timestamp
213
def is_executable(self, file_id, path=None):
214
ie = self._inventory[file_id]
215
if ie.kind != "file":
217
return self._inventory[file_id].executable
219
def has_filename(self, filename):
220
return bool(self.inventory.path2id(filename))
222
def list_files(self):
223
# The only files returned by this are those from the version
224
for path, entry in self.inventory.iter_entries():
225
yield path, 'V', entry.kind, entry.file_id, entry
227
def get_symlink_target(self, file_id):
228
ie = self._inventory[file_id]
229
return ie.symlink_target;
231
def kind(self, file_id):
232
return self._inventory[file_id].kind
235
self._repository.lock_read()
238
self._repository.unlock()
195
from bzrlib.revisiontree import RevisionTree
241
198
class EmptyTree(Tree):
243
200
def __init__(self):
244
201
self._inventory = Inventory()
202
warn('EmptyTree is deprecated as of bzr 0.9 please use '
203
'repository.revision_tree instead.',
204
DeprecationWarning, stacklevel=2)
246
206
def get_parent_ids(self):
247
"""See Tree.get_parent_ids.
249
An EmptyTree always has NULL_REVISION as the only parent.
253
209
def get_symlink_target(self, file_id):
407
363
interesting_ids.update(new_pending)
408
364
pending = new_pending
409
365
return interesting_ids
368
class InterTree(InterObject):
369
"""This class represents operations taking place between two Trees.
371
Its instances have methods like 'compare' and contain references to the
372
source and target trees these operations are to be carried out on.
374
clients of bzrlib should not need to use InterTree directly, rather they
375
should use the convenience methods on Tree such as 'Tree.compare()' which
376
will pass through to InterTree as appropriate.
382
def compare(self, want_unchanged=False, specific_files=None,
383
extra_trees=None, require_versioned=False):
384
"""Return the changes from source to target.
386
:return: A TreeDelta.
387
:param specific_files: An optional list of file paths to restrict the
388
comparison to. When mapping filenames to ids, all matches in all
389
trees (including optional extra_trees) are used, and all children of
390
matched directories are included.
391
:param want_unchanged: An optional boolean requesting the inclusion of
392
unchanged entries in the result.
393
:param extra_trees: An optional list of additional trees to use when
394
mapping the contents of specific_files (paths) to file_ids.
395
:param require_versioned: An optional boolean (defaults to False). When
396
supplied and True all the 'specific_files' must be versioned, or
397
a PathsNotVersionedError will be thrown.
399
# NB: show_status depends on being able to pass in non-versioned files and
400
# report them as unknown
401
trees = (self.source, self.target)
402
if extra_trees is not None:
403
trees = trees + tuple(extra_trees)
404
specific_file_ids = find_ids_across_trees(specific_files,
405
trees, require_versioned=require_versioned)
406
if specific_files and not specific_file_ids:
407
# All files are unversioned, so just return an empty delta
408
# _compare_trees would think we want a complete delta
409
return delta.TreeDelta()
410
return delta._compare_trees(self.source, self.target, want_unchanged,
added
removed
bzrlib/tree.py
