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
25
from bzrlib.tree import Tree
28
class RevisionTree(Tree):
29
"""Tree viewing a previous revision.
31
File text can be retrieved from the text store.
33
TODO: Some kind of `__repr__` method, but a good one
34
probably means knowing the branch and revision number,
35
or at least passing a description to the constructor.
38
def __init__(self, branch, inv, revision_id):
39
# for compatability the 'branch' parameter has not been renamed to
40
# repository at this point. However, we should change RevisionTree's
41
# construction to always be via Repository and not via direct
42
# construction - this will mean that we can change the constructor
43
# with much less chance of breaking client code.
44
self._repository = branch
45
self._weave_store = branch.weave_store
47
self._revision_id = osutils.safe_revision_id(revision_id)
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
def get_weave(self, file_id):
66
file_id = osutils.safe_file_id(file_id)
67
return self._weave_store.get_weave(file_id,
68
self._repository.get_transaction())
70
def get_file_lines(self, file_id):
71
file_id = osutils.safe_file_id(file_id)
72
ie = self._inventory[file_id]
73
weave = self.get_weave(file_id)
74
return weave.get_lines(ie.revision)
76
def get_file_text(self, file_id):
77
file_id = osutils.safe_file_id(file_id)
78
return ''.join(self.get_file_lines(file_id))
80
def get_file(self, file_id):
81
file_id = osutils.safe_file_id(file_id)
82
return StringIO(self.get_file_text(file_id))
84
def annotate_iter(self, file_id):
85
"""See Tree.annotate_iter"""
86
file_id = osutils.safe_file_id(file_id)
87
w = self.get_weave(file_id)
88
return w.annotate_iter(self.inventory[file_id].revision)
90
def get_file_size(self, file_id):
91
file_id = osutils.safe_file_id(file_id)
92
return self._inventory[file_id].text_size
94
def get_file_sha1(self, file_id, path=None, stat_value=None):
95
file_id = osutils.safe_file_id(file_id)
96
ie = self._inventory[file_id]
101
def get_file_mtime(self, file_id, path=None):
102
file_id = osutils.safe_file_id(file_id)
103
ie = self._inventory[file_id]
104
revision = self._repository.get_revision(ie.revision)
105
return revision.timestamp
107
def is_executable(self, file_id, path=None):
108
file_id = osutils.safe_file_id(file_id)
109
ie = self._inventory[file_id]
110
if ie.kind != "file":
114
def has_filename(self, filename):
115
return bool(self.inventory.path2id(filename))
117
def list_files(self, include_root=False):
118
# The only files returned by this are those from the version
119
entries = self.inventory.iter_entries()
120
# skip the root for compatability with the current apis.
121
if self.inventory.root is not None and not include_root:
122
# skip the root for compatability with the current apis.
124
for path, entry in entries:
125
yield path, 'V', entry.kind, entry.file_id, entry
127
def get_symlink_target(self, file_id):
128
file_id = osutils.safe_file_id(file_id)
129
ie = self._inventory[file_id]
130
return ie.symlink_target;
132
def kind(self, file_id):
133
file_id = osutils.safe_file_id(file_id)
134
return self._inventory[file_id].kind
136
def _comparison_data(self, entry, path):
138
return None, False, None
139
return entry.kind, entry.executable, None
141
def _file_size(self, entry, stat_value):
142
assert entry.text_size is not None
143
return entry.text_size
146
self._repository.lock_read()
149
self._repository.unlock()
151
def walkdirs(self, prefix=""):
152
_directory = 'directory'
154
top_id = inv.path2id(prefix)
158
pending = [(prefix, '', _directory, None, top_id, None)]
161
currentdir = pending.pop()
162
# 0 - relpath, 1- basename, 2- kind, 3- stat, id, v-kind
164
relroot = currentdir[0] + '/'
167
# FIXME: stash the node in pending
168
entry = inv[currentdir[4]]
169
for name, child in entry.sorted_children():
170
toppath = relroot + name
171
dirblock.append((toppath, name, child.kind, None,
172
child.file_id, child.kind
174
yield (currentdir[0], entry.file_id), dirblock
175
# push the user specified dirs from dirblock
176
for dir in reversed(dirblock):
177
if dir[2] == _directory: