15
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
# TODO: Maybe also keep the full path of the entry, and the children?
19
# But those depend on its position within a particular inventory, and
20
# it would be nice not to need to hold the backpointer here.
22
# TODO: Perhaps split InventoryEntry into subclasses for files,
23
# directories, etc etc.
26
18
# This should really be an id randomly assigned when the tree is
27
19
# created, but it's not for now.
28
20
ROOT_ID = "TREE_ROOT"
44
36
An InventoryEntry has the following fields, which are also
45
37
present in the XML inventory-entry element:
50
(within the parent directory)
56
file_id of the parent directory, or ROOT_ID
59
the revision_id in which the name or parent of this file was
63
sha-1 of the text of the file
66
size in bytes of the text of the file
69
the revision_id in which the text of this file was introduced
71
(reading a version 4 tree created a text_id field.)
40
* *name*: (only the basename within the directory, must not
42
* *kind*: "directory" or "file"
43
* *directory_id*: (if absent/null means the branch root directory)
44
* *text_sha1*: only for files
45
* *text_size*: in bytes, only for files
46
* *text_id*: identifier for the text version, only for files
48
InventoryEntries can also exist inside a WorkingTree
49
inventory, in which case they are not yet bound to a
50
particular revision of the file. In that case the text_sha1,
51
text_size and text_id are absent.
73
54
>>> i = Inventory()
76
57
>>> i.add(InventoryEntry('123', 'src', 'directory', ROOT_ID))
77
InventoryEntry('123', 'src', kind='directory', parent_id='TREE_ROOT')
78
58
>>> i.add(InventoryEntry('2323', 'hello.c', 'file', parent_id='123'))
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InventoryEntry('2323', 'hello.c', kind='file', parent_id='123')
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59
>>> for j in i.iter_entries():
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67
BzrError: inventory already contains entry with id {2323}
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68
>>> i.add(InventoryEntry('2324', 'bye.c', 'file', '123'))
90
InventoryEntry('2324', 'bye.c', kind='file', parent_id='123')
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69
>>> i.add(InventoryEntry('2325', 'wibble', 'directory', '123'))
92
InventoryEntry('2325', 'wibble', kind='directory', parent_id='123')
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70
>>> i.path2id('src/wibble')
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74
>>> i.add(InventoryEntry('2326', 'wibble.c', 'file', '2325'))
98
InventoryEntry('2326', 'wibble.c', kind='file', parent_id='2325')
100
76
InventoryEntry('2326', 'wibble.c', kind='file', parent_id='2325')
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77
>>> for j in i.iter_entries():
109
85
src/wibble/wibble.c
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86
>>> i.id2path('2326')
111
87
'src/wibble/wibble.c'
89
TODO: Maybe also keep the full path of the entry, and the children?
90
But those depend on its position within a particular inventory, and
91
it would be nice not to need to hold the backpointer here.
94
# TODO: split InventoryEntry into subclasses for files,
95
# directories, etc etc.
114
97
__slots__ = ['text_sha1', 'text_size', 'file_id', 'name', 'kind',
115
'text_id', 'parent_id', 'children',
116
'text_version', 'entry_version', ]
98
'text_id', 'parent_id', 'children', ]
119
100
def __init__(self, file_id, name, kind, parent_id, text_id=None):
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"""Create an InventoryEntry
131
112
Traceback (most recent call last):
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113
BzrCheckError: InventoryEntry name 'src/hello.c' is invalid
134
assert isinstance(name, basestring), name
135
115
if '/' in name or '\\' in name:
136
116
raise BzrCheckError('InventoryEntry name %r is invalid' % name)
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self.text_version = None
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self.entry_version = None
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self.text_sha1 = None
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119
self.text_size = None
142
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self.file_id = file_id
163
142
other = InventoryEntry(self.file_id, self.name, self.kind,
165
other.text_id = self.text_id
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self.parent_id, text_id=self.text_id)
166
144
other.text_sha1 = self.text_sha1
167
145
other.text_size = self.text_size
168
146
# note that children are *not* copied; they're pulled across when
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def to_element(self):
161
"""Convert to XML element"""
162
from bzrlib.xml import Element
166
e.set('name', self.name)
167
e.set('file_id', self.file_id)
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e.set('kind', self.kind)
170
if self.text_size != None:
171
e.set('text_size', '%d' % self.text_size)
173
for f in ['text_id', 'text_sha1']:
178
# to be conservative, we don't externalize the root pointers
179
# for now, leaving them as null in the xml form. in a future
180
# version it will be implied by nested elements.
181
if self.parent_id != ROOT_ID:
182
assert isinstance(self.parent_id, basestring)
183
e.set('parent_id', self.parent_id)
190
def from_element(cls, elt):
191
assert elt.tag == 'entry'
193
## original format inventories don't have a parent_id for
194
## nodes in the root directory, but it's cleaner to use one
196
parent_id = elt.get('parent_id')
197
if parent_id == None:
200
self = cls(elt.get('file_id'), elt.get('name'), elt.get('kind'), parent_id)
201
self.text_id = elt.get('text_id')
202
self.text_sha1 = elt.get('text_sha1')
204
## mutter("read inventoryentry: %r" % (elt.attrib))
206
v = elt.get('text_size')
207
self.text_size = v and int(v)
212
from_element = classmethod(from_element)
182
214
def __eq__(self, other):
183
215
if not isinstance(other, InventoryEntry):
184
216
return NotImplemented
189
221
and (self.text_size == other.text_size) \
190
222
and (self.text_id == other.text_id) \
191
223
and (self.parent_id == other.parent_id) \
192
and (self.kind == other.kind) \
193
and (self.text_version == other.text_version) \
194
and (self.entry_version == other.entry_version)
224
and (self.kind == other.kind)
197
227
def __ne__(self, other):
239
269
>>> inv = Inventory()
240
270
>>> inv.add(InventoryEntry('123-123', 'hello.c', 'file', ROOT_ID))
241
InventoryEntry('123-123', 'hello.c', kind='file', parent_id='TREE_ROOT')
242
271
>>> inv['123-123'].name
256
285
>>> inv = Inventory('TREE_ROOT-12345678-12345678')
257
286
>>> inv.add(InventoryEntry('123-123', 'hello.c', 'file', ROOT_ID))
258
InventoryEntry('123-123', 'hello.c', kind='file', parent_id='TREE_ROOT-12345678-12345678')
260
288
def __init__(self, root_id=ROOT_ID):
261
289
"""Create or read an inventory.
353
372
>>> inv = Inventory()
354
373
>>> inv.add(InventoryEntry('123', 'foo.c', 'file', ROOT_ID))
355
InventoryEntry('123', 'foo.c', kind='file', parent_id='TREE_ROOT')
367
385
>>> inv = Inventory()
368
386
>>> inv.add(InventoryEntry('123123', 'hello.c', 'file', ROOT_ID))
369
InventoryEntry('123123', 'hello.c', kind='file', parent_id='TREE_ROOT')
370
387
>>> inv['123123'].name
390
407
"""Add entry to inventory.
392
409
To add a file to a branch ready to be committed, use Branch.add,
395
Returns the new entry object.
397
411
if entry.file_id in self._byid:
398
412
raise BzrError("inventory already contains entry with id {%s}" % entry.file_id)
412
426
self._byid[entry.file_id] = entry
413
427
parent.children[entry.name] = entry
417
430
def add_path(self, relpath, kind, file_id=None):
418
431
"""Add entry from a path.
420
The immediate parent must already be versioned.
422
Returns the new entry object."""
433
The immediate parent must already be versioned"""
423
434
from bzrlib.branch import gen_file_id
425
436
parts = bzrlib.osutils.splitpath(relpath)
445
456
>>> inv = Inventory()
446
457
>>> inv.add(InventoryEntry('123', 'foo.c', 'file', ROOT_ID))
447
InventoryEntry('123', 'foo.c', kind='file', parent_id='TREE_ROOT')
450
460
>>> del inv['123']
466
476
del self[ie.parent_id].children[ie.name]
479
def to_element(self):
480
"""Convert to XML Element"""
481
from bzrlib.xml import Element
483
e = Element('inventory')
485
if self.root.file_id not in (None, ROOT_ID):
486
e.set('file_id', self.root.file_id)
487
for path, ie in self.iter_entries():
488
e.append(ie.to_element())
492
def from_element(cls, elt):
493
"""Construct from XML Element
495
>>> inv = Inventory()
496
>>> inv.add(InventoryEntry('foo.c-123981239', 'foo.c', 'file', ROOT_ID))
497
>>> elt = inv.to_element()
498
>>> inv2 = Inventory.from_element(elt)
502
# XXXX: doctest doesn't run this properly under python2.3
503
assert elt.tag == 'inventory'
504
root_id = elt.get('file_id') or ROOT_ID
507
ie = InventoryEntry.from_element(e)
508
if ie.parent_id == ROOT_ID:
509
ie.parent_id = root_id
513
from_element = classmethod(from_element)
469
516
def __eq__(self, other):
470
517
"""Compare two sets by comparing their contents.
476
523
>>> i1.add(InventoryEntry('123', 'foo', 'file', ROOT_ID))
477
InventoryEntry('123', 'foo', kind='file', parent_id='TREE_ROOT')
480
526
>>> i2.add(InventoryEntry('123', 'foo', 'file', ROOT_ID))
481
InventoryEntry('123', 'foo', kind='file', parent_id='TREE_ROOT')
added
removed
bzrlib/inventory.py
