« back to all changes in this revision
Viewing changes to inventory.py
- browse files at revision 18
- compare with another revision
- download diff
- download tarball
- view history from revision 18
- Committer: Bazaar Package Importer
- Author(s): Jelmer Vernooij
- Date: 2011-05-01 03:27:52 UTC
- mfrom: (1.1.16 upstream)
- Revision ID: james.westby@ubuntu.com-20110501032752-tkhql577jb8wpgua
Tags: 0.6.0+bzr1213-1
* Add build dependency on python-bzrlib.tests for newer versions of
bzr.
* New upstream snapshot.
bzr.
* New upstream snapshot.
- files removed:
- inventory.py
- files modified:
- NEWS
added
removed
inventory.py
1
# Copyright (C) 2009 Jelmer Vernooij <jelmer@samba.org>
2
#
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.
7
#
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.
12
#
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
16
17
18
"""Git inventory."""
19
20
21
from dulwich.objects import (
22
Blob,
23
Tree,
24
)
25
26
27
from bzrlib import (
28
errors,
29
inventory,
30
osutils,
31
ui,
32
)
33
34
from bzrlib.plugins.git.mapping import (
35
mode_kind,
36
mode_is_executable,
37
)
38
39
40
class GitInventoryEntry(inventory.InventoryEntry):
41
42
_git_class = None
43
44
def __init__(self, inv, parent_id, hexsha, path, name, executable):
45
self.name = name
46
self.parent_id = parent_id
47
self._inventory = inv
48
self._object = None
49
self.hexsha = hexsha
50
self.path = path
51
self.revision = self._inventory.revision_id
52
self.executable = executable
53
self.file_id = self._inventory.fileid_map.lookup_file_id(
54
path.encode('utf-8'))
55
56
@property
57
def object(self):
58
if self._object is None:
59
self._object = self._inventory.store[self.hexsha]
60
assert isinstance(self._object, self._git_class), \
61
"Expected instance of %r, got %r" % \
62
(self._git_class, self._object)
63
return self._object
64
65
66
class GitInventoryFile(GitInventoryEntry):
67
68
_git_class = Blob
69
70
def __init__(self, inv, parent_id, hexsha, path, basename, executable):
71
super(GitInventoryFile, self).__init__(inv, parent_id, hexsha, path,
72
basename, executable)
73
self.kind = 'file'
74
self.text_id = None
75
self.symlink_target = None
76
77
@property
78
def text_sha1(self):
79
return osutils.sha_strings(self.object.chunked)
80
81
@property
82
def text_size(self):
83
return len(self.object.data)
84
85
def __repr__(self):
86
return ("%s(%r, %r, parent_id=%r, sha1=%r, len=%s, revision=%s)"
87
% (self.__class__.__name__,
88
self.file_id,
89
self.name,
90
self.parent_id,
91
self.text_sha1,
92
self.text_size,
93
self.revision))
94
95
def kind_character(self):
96
"""See InventoryEntry.kind_character."""
97
return ''
98
99
def copy(self):
100
other = inventory.InventoryFile(self.file_id, self.name,
101
self.parent_id)
102
other.executable = self.executable
103
other.text_id = self.text_id
104
other.text_sha1 = self.text_sha1
105
other.text_size = self.text_size
106
other.revision = self.revision
107
return other
108
109
110
class GitInventoryLink(GitInventoryEntry):
111
112
_git_class = Blob
113
114
def __init__(self, inv, parent_id, hexsha, path, basename, executable):
115
super(GitInventoryLink, self).__init__(inv, parent_id, hexsha, path, basename, executable)
116
self.text_sha1 = None
117
self.text_size = None
118
self.kind = 'symlink'
119
120
@property
121
def symlink_target(self):
122
return self.object.data
123
124
def kind_character(self):
125
"""See InventoryEntry.kind_character."""
126
return ''
127
128
def copy(self):
129
other = inventory.InventoryLink(self.file_id, self.name, self.parent_id)
130
other.executable = self.executable
131
other.symlink_target = self.symlink_target
132
other.revision = self.revision
133
return other
134
135
136
class GitInventoryTreeReference(GitInventoryEntry):
137
138
_git_class = None
139
140
def __init__(self, inv, parent_id, hexsha, path, basename, executable):
141
super(GitInventoryTreeReference, self).__init__(inv, parent_id, hexsha, path, basename, executable)
142
self.hexsha = hexsha
143
self.reference_revision = inv.mapping.revision_id_foreign_to_bzr(hexsha)
144
self.text_sha1 = None
145
self.text_size = None
146
self.symlink_target = None
147
self.kind = 'tree-reference'
148
self._children = None
149
150
def kind_character(self):
151
"""See InventoryEntry.kind_character."""
152
return '/'
153
154
155
class GitInventoryDirectory(GitInventoryEntry):
156
157
_git_class = Tree
158
159
def __init__(self, inv, parent_id, hexsha, path, basename, executable):
160
super(GitInventoryDirectory, self).__init__(inv, parent_id, hexsha, path, basename, executable)
161
self.text_sha1 = None
162
self.text_size = None
163
self.symlink_target = None
164
self.kind = 'directory'
165
self._children = None
166
167
def kind_character(self):
168
"""See InventoryEntry.kind_character."""
169
return '/'
170
171
@property
172
def children(self):
173
if self._children is None:
174
self._retrieve_children()
175
return self._children
176
177
def _retrieve_children(self):
178
self._children = {}
179
for name, mode, hexsha in self.object.iteritems():
180
basename = name.decode("utf-8")
181
child_path = osutils.pathjoin(self.path, basename)
182
if self._inventory.mapping.is_control_file(child_path):
183
continue
184
executable = mode_is_executable(mode)
185
kind_class = {'directory': GitInventoryDirectory,
186
'file': GitInventoryFile,
187
'symlink': GitInventoryLink,
188
'tree-reference': GitInventoryTreeReference}[mode_kind(mode)]
189
self._children[basename] = kind_class(self._inventory,
190
self.file_id, hexsha, child_path, basename, executable)
191
192
def copy(self):
193
other = inventory.InventoryDirectory(self.file_id, self.name,
194
self.parent_id)
195
other.revision = self.revision
196
# note that children are *not* copied; they're pulled across when
197
# others are added
198
return other
199
200
201
class GitInventory(inventory.Inventory):
202
203
def __repr__(self):
204
return "<%s for %r in %r>" % (self.__class__.__name__,
205
self.root.hexsha, self.store)
206
207
def __init__(self, tree_id, mapping, fileid_map, store, revision_id):
208
super(GitInventory, self).__init__(revision_id=revision_id)
209
self.store = store
210
self.fileid_map = fileid_map
211
self.mapping = mapping
212
self.root = GitInventoryDirectory(self, None, tree_id, u"", u"", False)
213
214
def _get_ie(self, path):
215
if path == "" or path == []:
216
return self.root
217
if isinstance(path, basestring):
218
parts = path.split("/")
219
else:
220
parts = path
221
ie = self.root
222
for name in parts:
223
ie = ie.children[name]
224
return ie
225
226
def has_filename(self, path):
227
try:
228
self._get_ie(path)
229
return True
230
except KeyError:
231
return False
232
233
def has_id(self, file_id):
234
try:
235
self.id2path(file_id)
236
return True
237
except errors.NoSuchId:
238
return False
239
240
def id2path(self, file_id):
241
path = self.fileid_map.lookup_path(file_id)
242
try:
243
ie = self._get_ie(path)
244
except KeyError:
245
raise errors.NoSuchId(None, file_id)
246
247
def path2id(self, path):
248
try:
249
return self._get_ie(path).file_id
250
except KeyError:
251
return None
252
253
def __getitem__(self, file_id):
254
if file_id == inventory.ROOT_ID:
255
return self.root
256
path = self.fileid_map.lookup_path(file_id)
257
try:
258
return self._get_ie(path)
259
except KeyError:
260
raise errors.NoSuchId(None, file_id)
261
262
263
class GitIndexInventory(inventory.Inventory):
264
"""Inventory that retrieves its contents from an index file."""
265
266
def __repr__(self):
267
return "<%s for %r>" % (self.__class__.__name__, self.index)
268
269
def __init__(self, basis_inventory, fileid_map, index, store):
270
if basis_inventory is None:
271
root_id = None
272
else:
273
root_id = basis_inventory.root.file_id
274
super(GitIndexInventory, self).__init__(revision_id=None, root_id=root_id)
275
self.basis_inv = basis_inventory
276
self.fileid_map = fileid_map
277
self.index = index
278
self._contents_read = False
279
self.store = store
280
self.root = self.add_path("", 'directory',
281
self.fileid_map.lookup_file_id(""), None)
282
283
def iter_entries_by_dir(self, specific_file_ids=None, yield_parents=False):
284
self._read_contents()
285
return super(GitIndexInventory, self).iter_entries_by_dir(
286
specific_file_ids=specific_file_ids, yield_parents=yield_parents)
287
288
def has_id(self, file_id):
289
if type(file_id) != str:
290
raise AssertionError
291
try:
292
self.id2path(file_id)
293
return True
294
except errors.NoSuchId:
295
return False
296
297
def has_filename(self, path):
298
if path in self.index:
299
return True
300
self._read_contents()
301
return super(GitIndexInventory, self).has_filename(path)
302
303
def id2path(self, file_id):
304
if type(file_id) != str:
305
raise AssertionError
306
path = self.fileid_map.lookup_path(file_id)
307
if path in self.index:
308
return path
309
self._read_contents()
310
return super(GitIndexInventory, self).id2path(file_id)
311
312
def path2id(self, path):
313
if type(path) in (list, tuple):
314
path = "/".join(path)
315
encoded_path = path.encode("utf-8")
316
if encoded_path in self.index:
317
file_id = self.fileid_map.lookup_file_id(encoded_path)
318
else:
319
self._read_contents()
320
file_id = super(GitIndexInventory, self).path2id(path)
321
if file_id is not None and type(file_id) is not str:
322
raise AssertionError
323
return file_id
324
325
def __getitem__(self, file_id):
326
self._read_contents()
327
return super(GitIndexInventory, self).__getitem__(file_id)
328
329
def _read_contents(self):
330
if self._contents_read:
331
return
332
self._contents_read = True
333
pb = ui.ui_factory.nested_progress_bar()
334
try:
335
for i, (path, value) in enumerate(self.index.iteritems()):
336
pb.update("creating working inventory from index",
337
i, len(self.index))
338
assert isinstance(path, str)
339
assert isinstance(value, tuple) and len(value) == 10
340
(ctime, mtime, dev, ino, mode, uid, gid, size, sha, flags) = value
341
if self.basis_inv is not None:
342
try:
343
old_ie = self.basis_inv._get_ie(path)
344
except KeyError:
345
old_ie = None
346
else:
347
old_ie = None
348
if old_ie is None:
349
file_id = self.fileid_map.lookup_file_id(path)
350
else:
351
file_id = old_ie.file_id
352
if type(file_id) != str:
353
raise AssertionError
354
kind = mode_kind(mode)
355
if old_ie is not None and old_ie.hexsha == sha:
356
# Hasn't changed since basis inv
357
self.add_parents(path)
358
self.add(old_ie)
359
else:
360
ie = self.add_path(path.decode("utf-8"), kind, file_id,
361
self.add_parents(path))
362
data = self.store[sha].data
363
if kind == "symlink":
364
ie.symlink_target = data
365
else:
366
ie.text_sha1 = osutils.sha_string(data)
367
ie.text_size = len(data)
368
ie.revision = None
369
finally:
370
pb.finished()
371
372
def add_parents(self, path):
373
assert isinstance(path, str)
374
dirname, _ = osutils.split(path)
375
file_id = super(GitIndexInventory, self).path2id(dirname)
376
if file_id is None:
377
if dirname == "":
378
parent_fid = None
379
else:
380
parent_fid = self.add_parents(dirname)
381
ie = self.add_path(dirname.decode("utf-8"), 'directory',
382
self.fileid_map.lookup_file_id(dirname), parent_fid)
383
if self.basis_inv is not None and ie.file_id in self.basis_inv:
384
ie.revision = self.basis_inv[ie.file_id].revision
385
file_id = ie.file_id
386
if type(file_id) != str:
387
raise AssertionError
388
return file_id
389
Loggerhead is a web-based interface for Breezy
Version: 2.0.1