1
# Copyright (C) 2005, 2007 Canonical Ltd
3
# This program is free software; you can redistribute it and/or modify
4
# it under the terms of the GNU General Public License as published by
5
# the Free Software Foundation; either version 2 of the License, or
6
# (at your option) any later version.
8
# This program is distributed in the hope that it will be useful,
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
# GNU General Public License for more details.
13
# You should have received a copy of the GNU General Public License
14
# along with this program; if not, write to the Free Software
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17
"""RevisionTree - a Tree implementation backed by repository data for a revision."""
19
from cStringIO import StringIO
26
from bzrlib.tree import Tree
29
class RevisionTree(Tree):
30
"""Tree viewing a previous revision.
32
File text can be retrieved from the text store.
35
def __init__(self, branch, inv, revision_id):
36
# for compatability the 'branch' parameter has not been renamed to
37
# repository at this point. However, we should change RevisionTree's
38
# construction to always be via Repository and not via direct
39
# construction - this will mean that we can change the constructor
40
# with much less chance of breaking client code.
41
self._repository = branch
42
self._weave_store = branch.weave_store
44
self._revision_id = revision_id
46
def supports_tree_reference(self):
49
def get_parent_ids(self):
50
"""See Tree.get_parent_ids.
52
A RevisionTree's parents match the revision graph.
54
if self._revision_id in (None, revision.NULL_REVISION):
57
parent_ids = self._repository.get_revision(
58
self._revision_id).parent_ids
61
def get_revision_id(self):
62
"""Return the revision id associated with this tree."""
63
return self._revision_id
65
@symbol_versioning.deprecated_method(symbol_versioning.zero_ninety)
66
def get_weave(self, file_id):
67
return self._get_weave(file_id)
69
def _get_weave(self, file_id):
70
return self._weave_store.get_weave(file_id,
71
self._repository.get_transaction())
73
def get_file_lines(self, file_id):
74
ie = self._inventory[file_id]
75
weave = self._get_weave(file_id)
76
return weave.get_lines(ie.revision)
78
def get_file_text(self, file_id):
79
return ''.join(self.get_file_lines(file_id))
81
def get_file(self, file_id, path=None):
82
return StringIO(self.get_file_text(file_id))
84
def iter_files_bytes(self, desired_files):
85
"""See Tree.extract_files_bytes.
87
This version is implemented on top of Repository.extract_files_bytes"""
88
repo_desired_files = [(f, self.inventory[f].revision, i)
89
for f, i in desired_files]
90
return self._repository.iter_files_bytes(repo_desired_files)
92
def annotate_iter(self, file_id,
93
default_revision=revision.CURRENT_REVISION):
94
"""See Tree.annotate_iter"""
95
w = self._get_weave(file_id)
96
return w.annotate_iter(self.inventory[file_id].revision)
98
def get_file_size(self, file_id):
99
return self._inventory[file_id].text_size
101
def get_file_sha1(self, file_id, path=None, stat_value=None):
102
ie = self._inventory[file_id]
103
if ie.kind == "file":
107
def get_file_mtime(self, file_id, path=None):
108
ie = self._inventory[file_id]
109
revision = self._repository.get_revision(ie.revision)
110
return revision.timestamp
112
def is_executable(self, file_id, path=None):
113
ie = self._inventory[file_id]
114
if ie.kind != "file":
118
def has_filename(self, filename):
119
return bool(self.inventory.path2id(filename))
121
def list_files(self, include_root=False):
122
# The only files returned by this are those from the version
123
entries = self.inventory.iter_entries()
124
# skip the root for compatability with the current apis.
125
if self.inventory.root is not None and not include_root:
126
# skip the root for compatability with the current apis.
128
for path, entry in entries:
129
yield path, 'V', entry.kind, entry.file_id, entry
131
def get_symlink_target(self, file_id):
132
ie = self._inventory[file_id]
133
return ie.symlink_target;
135
def get_reference_revision(self, file_id, path=None):
136
return self.inventory[file_id].reference_revision
138
def get_root_id(self):
139
if self.inventory.root:
140
return self.inventory.root.file_id
142
def kind(self, file_id):
143
return self._inventory[file_id].kind
145
def path_content_summary(self, path):
146
"""See Tree.path_content_summary."""
147
id = self.inventory.path2id(path)
149
return ('missing', None, None, None)
150
entry = self._inventory[id]
153
return (kind, entry.text_size, entry.executable, entry.text_sha1)
154
elif kind == 'symlink':
155
return (kind, None, None, entry.symlink_target)
157
return (kind, None, None, None)
159
def _comparison_data(self, entry, path):
161
return None, False, None
162
return entry.kind, entry.executable, None
164
def _file_size(self, entry, stat_value):
165
assert entry.text_size is not None
166
return entry.text_size
168
def _get_ancestors(self, default_revision):
169
return set(self._repository.get_ancestry(self._revision_id,
173
self._repository.lock_read()
176
return '<%s instance at %x, rev_id=%r>' % (
177
self.__class__.__name__, id(self), self._revision_id)
180
self._repository.unlock()
182
def walkdirs(self, prefix=""):
183
_directory = 'directory'
185
top_id = inv.path2id(prefix)
189
pending = [(prefix, '', _directory, None, top_id, None)]
192
currentdir = pending.pop()
193
# 0 - relpath, 1- basename, 2- kind, 3- stat, id, v-kind
195
relroot = currentdir[0] + '/'
198
# FIXME: stash the node in pending
199
entry = inv[currentdir[4]]
200
for name, child in entry.sorted_children():
201
toppath = relroot + name
202
dirblock.append((toppath, name, child.kind, None,
203
child.file_id, child.kind
205
yield (currentdir[0], entry.file_id), dirblock
206
# push the user specified dirs from dirblock
207
for dir in reversed(dirblock):
208
if dir[2] == _directory:
added
removed
bzrlib/revisiontree.py
