23
23
import sys, os.path, types, re
27
from cElementTree import Element, ElementTree, SubElement
29
from elementtree.ElementTree import Element, ElementTree, SubElement
31
from xml import XMLMixin
32
from errors import bailout, BzrError, BzrCheckError
26
from bzrlib.errors import BzrError, BzrCheckError
35
28
from bzrlib.osutils import uuid, quotefn, splitpath, joinpath, appendpath
36
29
from bzrlib.trace import mutter
30
from bzrlib.errors import NotVersionedError
38
class InventoryEntry(XMLMixin):
33
class InventoryEntry(object):
39
34
"""Description of a versioned file.
41
36
An InventoryEntry has the following fields, which are also
62
57
>>> i.add(InventoryEntry('123', 'src', 'directory', ROOT_ID))
58
InventoryEntry('123', 'src', kind='directory', parent_id='TREE_ROOT')
63
59
>>> i.add(InventoryEntry('2323', 'hello.c', 'file', parent_id='123'))
60
InventoryEntry('2323', 'hello.c', kind='file', parent_id='123')
64
61
>>> for j in i.iter_entries():
69
66
>>> i.add(InventoryEntry('2323', 'bye.c', 'file', '123'))
70
67
Traceback (most recent call last):
72
BzrError: ('inventory already contains entry with id {2323}', [])
69
BzrError: inventory already contains entry with id {2323}
73
70
>>> i.add(InventoryEntry('2324', 'bye.c', 'file', '123'))
71
InventoryEntry('2324', 'bye.c', kind='file', parent_id='123')
74
72
>>> i.add(InventoryEntry('2325', 'wibble', 'directory', '123'))
73
InventoryEntry('2325', 'wibble', kind='directory', parent_id='123')
75
74
>>> i.path2id('src/wibble')
79
78
>>> i.add(InventoryEntry('2326', 'wibble.c', 'file', '2325'))
79
InventoryEntry('2326', 'wibble.c', kind='file', parent_id='2325')
81
81
InventoryEntry('2326', 'wibble.c', kind='file', parent_id='2325')
82
82
>>> for j in i.iter_entries():
99
99
# TODO: split InventoryEntry into subclasses for files,
100
100
# directories, etc etc.
102
__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
103
'text_id', 'parent_id', 'children', ]
105
105
def __init__(self, file_id, name, kind, parent_id, text_id=None):
106
106
"""Create an InventoryEntry
145
148
self.parent_id, text_id=self.text_id)
146
149
other.text_sha1 = self.text_sha1
147
150
other.text_size = self.text_size
151
# note that children are *not* copied; they're pulled across when
210
217
from_element = classmethod(from_element)
212
def __cmp__(self, other):
219
def __eq__(self, other):
215
220
if not isinstance(other, InventoryEntry):
216
221
return NotImplemented
218
return cmp(self.file_id, other.file_id) \
219
or cmp(self.name, other.name) \
220
or cmp(self.text_sha1, other.text_sha1) \
221
or cmp(self.text_size, other.text_size) \
222
or cmp(self.text_id, other.text_id) \
223
or cmp(self.parent_id, other.parent_id) \
224
or cmp(self.kind, other.kind)
223
return (self.file_id == other.file_id) \
224
and (self.name == other.name) \
225
and (self.text_sha1 == other.text_sha1) \
226
and (self.text_size == other.text_size) \
227
and (self.text_id == other.text_id) \
228
and (self.parent_id == other.parent_id) \
229
and (self.kind == other.kind)
232
def __ne__(self, other):
233
return not (self == other)
236
raise ValueError('not hashable')
233
245
self.parent_id = None
236
def __cmp__(self, other):
248
def __eq__(self, other):
239
249
if not isinstance(other, RootEntry):
240
250
return NotImplemented
241
return cmp(self.file_id, other.file_id) \
242
or cmp(self.children, other.children)
246
class Inventory(XMLMixin):
252
return (self.file_id == other.file_id) \
253
and (self.children == other.children)
257
class Inventory(object):
247
258
"""Inventory of versioned files in a tree.
249
260
This describes which file_id is present at each point in the tree,
261
272
inserted, other than through the Inventory API.
263
274
>>> inv = Inventory()
264
>>> inv.write_xml(sys.stdout)
267
275
>>> inv.add(InventoryEntry('123-123', 'hello.c', 'file', ROOT_ID))
276
InventoryEntry('123-123', 'hello.c', kind='file', parent_id='TREE_ROOT')
268
277
>>> inv['123-123'].name
280
289
>>> [x[0] for x in inv.iter_entries()]
283
>>> inv.write_xml(sys.stdout)
285
<entry file_id="123-123" kind="file" name="hello.c" />
291
>>> inv = Inventory('TREE_ROOT-12345678-12345678')
292
>>> inv.add(InventoryEntry('123-123', 'hello.c', 'file', ROOT_ID))
293
InventoryEntry('123-123', 'hello.c', kind='file', parent_id='TREE_ROOT-12345678-12345678')
295
def __init__(self, root_id=ROOT_ID):
290
296
"""Create or read an inventory.
292
298
If a working directory is specified, the inventory is read
296
302
The inventory is created with a default root directory, with
299
self.root = RootEntry(ROOT_ID)
305
# We are letting Branch(init=True) create a unique inventory
306
# root id. Rather than generating a random one here.
308
# root_id = bzrlib.branch.gen_file_id('TREE_ROOT')
309
self.root = RootEntry(root_id)
300
310
self._byid = {self.root.file_id: self.root}
324
334
if ie.kind == 'directory':
325
335
for cn, cie in self.iter_entries(from_dir=ie.file_id):
326
336
yield os.path.join(name, cn), cie
340
"""Return list of (path, ie) for all entries except the root.
342
This may be faster than iter_entries.
345
def descend(dir_ie, dir_path):
346
kids = dir_ie.children.items()
348
for name, ie in kids:
349
child_path = os.path.join(dir_path, name)
350
accum.append((child_path, ie))
351
if ie.kind == 'directory':
352
descend(ie, child_path)
354
descend(self.root, '')
330
358
def directories(self):
331
"""Return (path, entry) pairs for all directories.
359
"""Return (path, entry) pairs for all directories, including the root.
333
def descend(parent_ie):
334
parent_name = parent_ie.name
335
yield parent_name, parent_ie
337
# directory children in sorted order
339
for ie in parent_ie.children.itervalues():
340
if ie.kind == 'directory':
341
dn.append((ie.name, ie))
362
def descend(parent_ie, parent_path):
363
accum.append((parent_path, parent_ie))
344
for name, child_ie in dn:
345
for sub_name, sub_ie in descend(child_ie):
346
yield appendpath(parent_name, sub_name), sub_ie
365
kids = [(ie.name, ie) for ie in parent_ie.children.itervalues() if ie.kind == 'directory']
348
for name, ie in descend(self.root):
368
for name, child_ie in kids:
369
child_path = os.path.join(parent_path, name)
370
descend(child_ie, child_path)
371
descend(self.root, '')
356
379
>>> inv = Inventory()
357
380
>>> inv.add(InventoryEntry('123', 'foo.c', 'file', ROOT_ID))
381
InventoryEntry('123', 'foo.c', kind='file', parent_id='TREE_ROOT')
369
393
>>> inv = Inventory()
370
394
>>> inv.add(InventoryEntry('123123', 'hello.c', 'file', ROOT_ID))
395
InventoryEntry('123123', 'hello.c', kind='file', parent_id='TREE_ROOT')
371
396
>>> inv['123123'].name
380
405
raise BzrError("file_id {%s} not in inventory" % file_id)
408
def get_file_kind(self, file_id):
409
return self._byid[file_id].kind
383
411
def get_child(self, parent_id, filename):
384
412
return self[parent_id].children.get(filename)
390
418
To add a file to a branch ready to be committed, use Branch.add,
391
419
which calls this."""
392
420
if entry.file_id in self._byid:
393
bailout("inventory already contains entry with id {%s}" % entry.file_id)
421
raise BzrError("inventory already contains entry with id {%s}" % entry.file_id)
423
if entry.parent_id == ROOT_ID or entry.parent_id is None:
424
entry.parent_id = self.root.file_id
396
427
parent = self._byid[entry.parent_id]
398
bailout("parent_id {%s} not in inventory" % entry.parent_id)
429
raise BzrError("parent_id {%s} not in inventory" % entry.parent_id)
400
431
if parent.children.has_key(entry.name):
401
bailout("%s is already versioned" %
432
raise BzrError("%s is already versioned" %
402
433
appendpath(self.id2path(parent.file_id), entry.name))
404
435
self._byid[entry.file_id] = entry
405
436
parent.children[entry.name] = entry
408
440
def add_path(self, relpath, kind, file_id=None):
409
441
"""Add entry from a path.
411
443
The immediate parent must already be versioned"""
444
from bzrlib.branch import gen_file_id
412
446
parts = bzrlib.osutils.splitpath(relpath)
413
447
if len(parts) == 0:
414
bailout("cannot re-add root of inventory")
448
raise BzrError("cannot re-add root of inventory")
416
450
if file_id == None:
417
file_id = bzrlib.branch.gen_file_id(relpath)
419
parent_id = self.path2id(parts[:-1])
420
assert parent_id != None
451
file_id = gen_file_id(relpath)
453
parent_path = parts[:-1]
454
parent_id = self.path2id(parent_path)
455
if parent_id == None:
456
raise NotVersionedError(parent_path)
421
458
ie = InventoryEntry(file_id, parts[-1],
422
459
kind=kind, parent_id=parent_id)
423
460
return self.add(ie)
429
466
>>> inv = Inventory()
430
467
>>> inv.add(InventoryEntry('123', 'foo.c', 'file', ROOT_ID))
468
InventoryEntry('123', 'foo.c', kind='file', parent_id='TREE_ROOT')
433
471
>>> del inv['123']
449
487
del self[ie.parent_id].children[ie.name]
453
return Set(self._byid)
456
490
def to_element(self):
457
491
"""Convert to XML Element"""
492
from bzrlib.xml import Element
458
494
e = Element('inventory')
496
if self.root.file_id not in (None, ROOT_ID):
497
e.set('file_id', self.root.file_id)
460
498
for path, ie in self.iter_entries():
461
499
e.append(ie.to_element())
465
503
def from_element(cls, elt):
466
504
"""Construct from XML Element
468
506
>>> inv = Inventory()
469
507
>>> inv.add(InventoryEntry('foo.c-123981239', 'foo.c', 'file', ROOT_ID))
508
InventoryEntry('foo.c-123981239', 'foo.c', kind='file', parent_id='TREE_ROOT')
470
509
>>> elt = inv.to_element()
471
510
>>> inv2 = Inventory.from_element(elt)
514
# XXXX: doctest doesn't run this properly under python2.3
475
515
assert elt.tag == 'inventory'
516
root_id = elt.get('file_id') or ROOT_ID
478
o.add(InventoryEntry.from_element(e))
519
ie = InventoryEntry.from_element(e)
520
if ie.parent_id == ROOT_ID:
521
ie.parent_id = root_id
481
525
from_element = classmethod(from_element)
484
def __cmp__(self, other):
528
def __eq__(self, other):
485
529
"""Compare two sets by comparing their contents.
487
531
>>> i1 = Inventory()
491
535
>>> i1.add(InventoryEntry('123', 'foo', 'file', ROOT_ID))
536
InventoryEntry('123', 'foo', kind='file', parent_id='TREE_ROOT')
494
539
>>> i2.add(InventoryEntry('123', 'foo', 'file', ROOT_ID))
540
InventoryEntry('123', 'foo', kind='file', parent_id='TREE_ROOT')
501
544
if not isinstance(other, Inventory):
502
545
return NotImplemented
504
if self.id_set() ^ other.id_set():
507
for file_id in self._byid:
508
c = cmp(self[file_id], other[file_id])
547
if len(self._byid) != len(other._byid):
548
# shortcut: obviously not the same
551
return self._byid == other._byid
554
def __ne__(self, other):
555
return not (self == other)
559
raise ValueError('not hashable')
514
563
def get_idpath(self, file_id):
534
583
"""Return as a list the path to file_id."""
536
585
# get all names, skipping root
537
p = [self[fid].name for fid in self.get_idpath(file_id)[1:]]
586
p = [self._byid[fid].name for fid in self.get_idpath(file_id)[1:]]
538
587
return os.sep.join(p)
585
634
This does not move the working file."""
586
635
if not is_valid_name(new_name):
587
bailout("not an acceptable filename: %r" % new_name)
636
raise BzrError("not an acceptable filename: %r" % new_name)
589
638
new_parent = self._byid[new_parent_id]
590
639
if new_name in new_parent.children:
591
bailout("%r already exists in %r" % (new_name, self.id2path(new_parent_id)))
640
raise BzrError("%r already exists in %r" % (new_name, self.id2path(new_parent_id)))
593
642
new_parent_idpath = self.get_idpath(new_parent_id)
594
643
if file_id in new_parent_idpath:
595
bailout("cannot move directory %r into a subdirectory of itself, %r"
644
raise BzrError("cannot move directory %r into a subdirectory of itself, %r"
596
645
% (self.id2path(file_id), self.id2path(new_parent_id)))
598
647
file_ie = self._byid[file_id]