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"""Tree viewing a previous revision.
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File text can be retrieved from the text store.
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TODO: Some kind of `__repr__` method, but a good one
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probably means knowing the branch and revision number,
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or at least passing a description to the constructor.
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def __init__(self, branch, inv, revision_id):
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# for compatability the 'branch' parameter has not been renamed to
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# repository at this point. However, we should change RevisionTree's
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# construction - this will mean that we can change the constructor
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# with much less chance of breaking client code.
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self._repository = branch
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self._weave_store = branch.weave_store
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self._inventory = inv
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self._revision_id = revision_id
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self._rules_searcher = None
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def supports_tree_reference(self):
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def get_parent_ids(self):
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"""See Tree.get_parent_ids.
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A RevisionTree's parents match the revision graph.
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if self._revision_id in (None, revision.NULL_REVISION):
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if self._revision_id not in (None, 'null:'):
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parent_ids = self._repository.get_revision(
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self._revision_id).parent_ids
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def get_revision_id(self):
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"""Return the revision id associated with this tree."""
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return self._revision_id
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def get_weave(self, file_id):
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return self._weave_store.get_weave(file_id,
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self._repository.get_transaction())
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def get_file_lines(self, file_id):
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return osutils.split_lines(self.get_file_text(file_id))
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ie = self._inventory[file_id]
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weave = self.get_weave(file_id)
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return weave.get_lines(ie.revision)
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def get_file_text(self, file_id):
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return list(self.iter_files_bytes([(file_id, None)]))[0][1]
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return ''.join(self.get_file_lines(file_id))
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def get_file(self, file_id, path=None):
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def get_file(self, file_id):
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return StringIO(self.get_file_text(file_id))
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def iter_files_bytes(self, desired_files):
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"""See Tree.iter_files_bytes.
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This version is implemented on top of Repository.extract_files_bytes"""
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repo_desired_files = [(f, self.inventory[f].revision, i)
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for f, i in desired_files]
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for result in self._repository.iter_files_bytes(repo_desired_files):
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except errors.RevisionNotPresent, e:
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raise errors.NoSuchFile(e.revision_id)
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def annotate_iter(self, file_id,
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default_revision=revision.CURRENT_REVISION):
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def annotate_iter(self, file_id):
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"""See Tree.annotate_iter"""
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text_key = (file_id, self.inventory[file_id].revision)
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annotations = self._repository.texts.annotate(text_key)
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return [(key[-1], line) for key, line in annotations]
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w = self.get_weave(file_id)
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return w.annotate_iter(self.inventory[file_id].revision)
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def get_file_size(self, file_id):
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"""See Tree.get_file_size"""
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return self._inventory[file_id].text_size
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def get_file_sha1(self, file_id, path=None, stat_value=None):
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ie = self._inventory[file_id]
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return ie.symlink_target;
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def get_reference_revision(self, file_id, path=None):
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return self.inventory[file_id].reference_revision
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def get_root_id(self):
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if self.inventory.root:
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return self.inventory.root.file_id
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def kind(self, file_id):
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return self._inventory[file_id].kind
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def path_content_summary(self, path):
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"""See Tree.path_content_summary."""
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id = self.inventory.path2id(path)
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return ('missing', None, None, None)
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entry = self._inventory[id]
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return (kind, entry.text_size, entry.executable, entry.text_sha1)
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elif kind == 'symlink':
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return (kind, None, None, entry.symlink_target)
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return (kind, None, None, None)
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def _comparison_data(self, entry, path):
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if entry is None:
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return None, False, None
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return entry.kind, entry.executable, None
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def _file_size(self, entry, stat_value):
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assert entry.text_size is not None
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return entry.text_size
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def _get_ancestors(self, default_revision):
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return set(self._repository.get_ancestry(self._revision_id,
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def lock_read(self):
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self._repository.lock_read()
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return '<%s instance at %x, rev_id=%r>' % (
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self.__class__.__name__, id(self), self._revision_id)
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def unlock(self):
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self._repository.unlock()
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def walkdirs(self, prefix=""):
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_directory = 'directory'
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top_id = inv.path2id(prefix)
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pending = [(prefix, '', _directory, None, top_id, None)]
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currentdir = pending.pop()
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# 0 - relpath, 1- basename, 2- kind, 3- stat, id, v-kind
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relroot = currentdir[0] + '/'
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# FIXME: stash the node in pending
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entry = inv[currentdir[4]]
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for name, child in entry.sorted_children():
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toppath = relroot + name
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dirblock.append((toppath, name, child.kind, None,
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child.file_id, child.kind
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yield (currentdir[0], entry.file_id), dirblock
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# push the user specified dirs from dirblock
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for dir in reversed(dirblock):
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if dir[2] == _directory:
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def _get_rules_searcher(self, default_searcher):
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"""See Tree._get_rules_searcher."""
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if self._rules_searcher is None:
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self._rules_searcher = super(RevisionTree,
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self)._get_rules_searcher(default_searcher)
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return self._rules_searcher