1
# Copyright (C) 2005 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
22
from bzrlib.trace import mutter, note
23
from bzrlib.osutils import isdir, quotefn, compact_date, rand_bytes, \
25
sha_file, appendpath, file_kind
26
from bzrlib.errors import BzrError, InvalidRevisionNumber, InvalidRevisionId
28
from bzrlib.textui import show_status
29
from bzrlib.revision import Revision
30
from bzrlib.xml import unpack_xml
31
from bzrlib.delta import compare_trees
32
from bzrlib.tree import EmptyTree, RevisionTree
33
from bzrlib.progress import ProgressBar
36
BZR_BRANCH_FORMAT = "Bazaar-NG branch, format 0.0.4\n"
37
## TODO: Maybe include checks for common corruption of newlines, etc?
40
# TODO: Some operations like log might retrieve the same revisions
41
# repeatedly to calculate deltas. We could perhaps have a weakref
42
# cache in memory to make this faster.
44
# TODO: please move the revision-string syntax stuff out of the branch
45
# object; it's clutter
48
def find_branch(f, **args):
49
if f and (f.startswith('http://') or f.startswith('https://')):
51
return remotebranch.RemoteBranch(f, **args)
53
return Branch(f, **args)
56
def find_cached_branch(f, cache_root, **args):
57
from remotebranch import RemoteBranch
58
br = find_branch(f, **args)
59
def cacheify(br, store_name):
60
from meta_store import CachedStore
61
cache_path = os.path.join(cache_root, store_name)
63
new_store = CachedStore(getattr(br, store_name), cache_path)
64
setattr(br, store_name, new_store)
66
if isinstance(br, RemoteBranch):
67
cacheify(br, 'inventory_store')
68
cacheify(br, 'text_store')
69
cacheify(br, 'revision_store')
73
def _relpath(base, path):
74
"""Return path relative to base, or raise exception.
76
The path may be either an absolute path or a path relative to the
77
current working directory.
79
Lifted out of Branch.relpath for ease of testing.
81
os.path.commonprefix (python2.4) has a bad bug that it works just
82
on string prefixes, assuming that '/u' is a prefix of '/u2'. This
83
avoids that problem."""
84
rp = os.path.abspath(path)
88
while len(head) >= len(base):
91
head, tail = os.path.split(head)
95
from errors import NotBranchError
96
raise NotBranchError("path %r is not within branch %r" % (rp, base))
101
def find_branch_root(f=None):
102
"""Find the branch root enclosing f, or pwd.
104
f may be a filename or a URL.
106
It is not necessary that f exists.
108
Basically we keep looking up until we find the control directory or
109
run into the root."""
112
elif hasattr(os.path, 'realpath'):
113
f = os.path.realpath(f)
115
f = os.path.abspath(f)
116
if not os.path.exists(f):
117
raise BzrError('%r does not exist' % f)
123
if os.path.exists(os.path.join(f, bzrlib.BZRDIR)):
125
head, tail = os.path.split(f)
127
# reached the root, whatever that may be
128
raise BzrError('%r is not in a branch' % orig_f)
131
class DivergedBranches(Exception):
132
def __init__(self, branch1, branch2):
133
self.branch1 = branch1
134
self.branch2 = branch2
135
Exception.__init__(self, "These branches have diverged.")
138
######################################################################
141
class Branch(object):
142
"""Branch holding a history of revisions.
145
Base directory of the branch.
151
If _lock_mode is true, a positive count of the number of times the
155
Lock object from bzrlib.lock.
162
# Map some sort of prefix into a namespace
163
# stuff like "revno:10", "revid:", etc.
164
# This should match a prefix with a function which accepts
165
REVISION_NAMESPACES = {}
167
def __init__(self, base, init=False, find_root=True):
168
"""Create new branch object at a particular location.
170
base -- Base directory for the branch.
172
init -- If True, create new control files in a previously
173
unversioned directory. If False, the branch must already
176
find_root -- If true and init is false, find the root of the
177
existing branch containing base.
179
In the test suite, creation of new trees is tested using the
180
`ScratchBranch` class.
182
from bzrlib.store import ImmutableStore
184
self.base = os.path.realpath(base)
187
self.base = find_branch_root(base)
189
self.base = os.path.realpath(base)
190
if not isdir(self.controlfilename('.')):
191
from errors import NotBranchError
192
raise NotBranchError("not a bzr branch: %s" % quotefn(base),
193
['use "bzr init" to initialize a new working tree',
194
'current bzr can only operate from top-of-tree'])
197
self.text_store = ImmutableStore(self.controlfilename('text-store'))
198
self.revision_store = ImmutableStore(self.controlfilename('revision-store'))
199
self.inventory_store = ImmutableStore(self.controlfilename('inventory-store'))
203
return '%s(%r)' % (self.__class__.__name__, self.base)
210
if self._lock_mode or self._lock:
211
from warnings import warn
212
warn("branch %r was not explicitly unlocked" % self)
217
def lock_write(self):
219
if self._lock_mode != 'w':
220
from errors import LockError
221
raise LockError("can't upgrade to a write lock from %r" %
223
self._lock_count += 1
225
from bzrlib.lock import WriteLock
227
self._lock = WriteLock(self.controlfilename('branch-lock'))
228
self._lock_mode = 'w'
235
assert self._lock_mode in ('r', 'w'), \
236
"invalid lock mode %r" % self._lock_mode
237
self._lock_count += 1
239
from bzrlib.lock import ReadLock
241
self._lock = ReadLock(self.controlfilename('branch-lock'))
242
self._lock_mode = 'r'
248
if not self._lock_mode:
249
from errors import LockError
250
raise LockError('branch %r is not locked' % (self))
252
if self._lock_count > 1:
253
self._lock_count -= 1
257
self._lock_mode = self._lock_count = None
260
def abspath(self, name):
261
"""Return absolute filename for something in the branch"""
262
return os.path.join(self.base, name)
265
def relpath(self, path):
266
"""Return path relative to this branch of something inside it.
268
Raises an error if path is not in this branch."""
269
return _relpath(self.base, path)
272
def controlfilename(self, file_or_path):
273
"""Return location relative to branch."""
274
if isinstance(file_or_path, basestring):
275
file_or_path = [file_or_path]
276
return os.path.join(self.base, bzrlib.BZRDIR, *file_or_path)
279
def controlfile(self, file_or_path, mode='r'):
280
"""Open a control file for this branch.
282
There are two classes of file in the control directory: text
283
and binary. binary files are untranslated byte streams. Text
284
control files are stored with Unix newlines and in UTF-8, even
285
if the platform or locale defaults are different.
287
Controlfiles should almost never be opened in write mode but
288
rather should be atomically copied and replaced using atomicfile.
291
fn = self.controlfilename(file_or_path)
293
if mode == 'rb' or mode == 'wb':
294
return file(fn, mode)
295
elif mode == 'r' or mode == 'w':
296
# open in binary mode anyhow so there's no newline translation;
297
# codecs uses line buffering by default; don't want that.
299
return codecs.open(fn, mode + 'b', 'utf-8',
302
raise BzrError("invalid controlfile mode %r" % mode)
306
def _make_control(self):
307
from bzrlib.inventory import Inventory
308
from bzrlib.xml import pack_xml
310
os.mkdir(self.controlfilename([]))
311
self.controlfile('README', 'w').write(
312
"This is a Bazaar-NG control directory.\n"
313
"Do not change any files in this directory.\n")
314
self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT)
315
for d in ('text-store', 'inventory-store', 'revision-store'):
316
os.mkdir(self.controlfilename(d))
317
for f in ('revision-history', 'merged-patches',
318
'pending-merged-patches', 'branch-name',
321
self.controlfile(f, 'w').write('')
322
mutter('created control directory in ' + self.base)
324
# if we want per-tree root ids then this is the place to set
325
# them; they're not needed for now and so ommitted for
327
pack_xml(Inventory(), self.controlfile('inventory','w'))
330
def _check_format(self):
331
"""Check this branch format is supported.
333
The current tool only supports the current unstable format.
335
In the future, we might need different in-memory Branch
336
classes to support downlevel branches. But not yet.
338
# This ignores newlines so that we can open branches created
339
# on Windows from Linux and so on. I think it might be better
340
# to always make all internal files in unix format.
341
fmt = self.controlfile('branch-format', 'r').read()
342
fmt.replace('\r\n', '')
343
if fmt != BZR_BRANCH_FORMAT:
344
raise BzrError('sorry, branch format %r not supported' % fmt,
345
['use a different bzr version',
346
'or remove the .bzr directory and "bzr init" again'])
348
def get_root_id(self):
349
"""Return the id of this branches root"""
350
inv = self.read_working_inventory()
351
return inv.root.file_id
353
def set_root_id(self, file_id):
354
inv = self.read_working_inventory()
355
orig_root_id = inv.root.file_id
356
del inv._byid[inv.root.file_id]
357
inv.root.file_id = file_id
358
inv._byid[inv.root.file_id] = inv.root
361
if entry.parent_id in (None, orig_root_id):
362
entry.parent_id = inv.root.file_id
363
self._write_inventory(inv)
365
def read_working_inventory(self):
366
"""Read the working inventory."""
367
from bzrlib.inventory import Inventory
368
from bzrlib.xml import unpack_xml
369
from time import time
373
# ElementTree does its own conversion from UTF-8, so open in
375
inv = unpack_xml(Inventory,
376
self.controlfile('inventory', 'rb'))
377
mutter("loaded inventory of %d items in %f"
378
% (len(inv), time() - before))
384
def _write_inventory(self, inv):
385
"""Update the working inventory.
387
That is to say, the inventory describing changes underway, that
388
will be committed to the next revision.
390
from bzrlib.atomicfile import AtomicFile
391
from bzrlib.xml import pack_xml
395
f = AtomicFile(self.controlfilename('inventory'), 'wb')
404
mutter('wrote working inventory')
407
inventory = property(read_working_inventory, _write_inventory, None,
408
"""Inventory for the working copy.""")
411
def add(self, files, verbose=False, ids=None):
412
"""Make files versioned.
414
Note that the command line normally calls smart_add instead.
416
This puts the files in the Added state, so that they will be
417
recorded by the next commit.
420
List of paths to add, relative to the base of the tree.
423
If set, use these instead of automatically generated ids.
424
Must be the same length as the list of files, but may
425
contain None for ids that are to be autogenerated.
427
TODO: Perhaps have an option to add the ids even if the files do
430
TODO: Perhaps return the ids of the files? But then again it
431
is easy to retrieve them if they're needed.
433
TODO: Adding a directory should optionally recurse down and
434
add all non-ignored children. Perhaps do that in a
437
# TODO: Re-adding a file that is removed in the working copy
438
# should probably put it back with the previous ID.
439
if isinstance(files, basestring):
440
assert(ids is None or isinstance(ids, basestring))
446
ids = [None] * len(files)
448
assert(len(ids) == len(files))
452
inv = self.read_working_inventory()
453
for f,file_id in zip(files, ids):
454
if is_control_file(f):
455
raise BzrError("cannot add control file %s" % quotefn(f))
460
raise BzrError("cannot add top-level %r" % f)
462
fullpath = os.path.normpath(self.abspath(f))
465
kind = file_kind(fullpath)
467
# maybe something better?
468
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
470
if kind != 'file' and kind != 'directory':
471
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
474
file_id = gen_file_id(f)
475
inv.add_path(f, kind=kind, file_id=file_id)
478
print 'added', quotefn(f)
480
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
482
self._write_inventory(inv)
487
def print_file(self, file, revno):
488
"""Print `file` to stdout."""
491
tree = self.revision_tree(self.lookup_revision(revno))
492
# use inventory as it was in that revision
493
file_id = tree.inventory.path2id(file)
495
raise BzrError("%r is not present in revision %s" % (file, revno))
496
tree.print_file(file_id)
501
def remove(self, files, verbose=False):
502
"""Mark nominated files for removal from the inventory.
504
This does not remove their text. This does not run on
506
TODO: Refuse to remove modified files unless --force is given?
508
TODO: Do something useful with directories.
510
TODO: Should this remove the text or not? Tough call; not
511
removing may be useful and the user can just use use rm, and
512
is the opposite of add. Removing it is consistent with most
513
other tools. Maybe an option.
515
## TODO: Normalize names
516
## TODO: Remove nested loops; better scalability
517
if isinstance(files, basestring):
523
tree = self.working_tree()
526
# do this before any modifications
530
raise BzrError("cannot remove unversioned file %s" % quotefn(f))
531
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
533
# having remove it, it must be either ignored or unknown
534
if tree.is_ignored(f):
538
show_status(new_status, inv[fid].kind, quotefn(f))
541
self._write_inventory(inv)
546
# FIXME: this doesn't need to be a branch method
547
def set_inventory(self, new_inventory_list):
548
from bzrlib.inventory import Inventory, InventoryEntry
549
inv = Inventory(self.get_root_id())
550
for path, file_id, parent, kind in new_inventory_list:
551
name = os.path.basename(path)
554
inv.add(InventoryEntry(file_id, name, kind, parent))
555
self._write_inventory(inv)
559
"""Return all unknown files.
561
These are files in the working directory that are not versioned or
562
control files or ignored.
564
>>> b = ScratchBranch(files=['foo', 'foo~'])
565
>>> list(b.unknowns())
568
>>> list(b.unknowns())
571
>>> list(b.unknowns())
574
return self.working_tree().unknowns()
577
def append_revision(self, *revision_ids):
578
from bzrlib.atomicfile import AtomicFile
580
for revision_id in revision_ids:
581
mutter("add {%s} to revision-history" % revision_id)
583
rev_history = self.revision_history()
584
rev_history.extend(revision_ids)
586
f = AtomicFile(self.controlfilename('revision-history'))
588
for rev_id in rev_history:
595
def get_revision_xml(self, revision_id):
596
"""Return XML file object for revision object."""
597
if not revision_id or not isinstance(revision_id, basestring):
598
raise InvalidRevisionId(revision_id)
603
return self.revision_store[revision_id]
605
raise bzrlib.errors.NoSuchRevision(self, revision_id)
610
def get_revision(self, revision_id):
611
"""Return the Revision object for a named revision"""
612
xml_file = self.get_revision_xml(revision_id)
615
r = unpack_xml(Revision, xml_file)
616
except SyntaxError, e:
617
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
621
assert r.revision_id == revision_id
625
def get_revision_delta(self, revno):
626
"""Return the delta for one revision.
628
The delta is relative to its mainline predecessor, or the
629
empty tree for revision 1.
631
assert isinstance(revno, int)
632
rh = self.revision_history()
633
if not (1 <= revno <= len(rh)):
634
raise InvalidRevisionNumber(revno)
636
# revno is 1-based; list is 0-based
638
new_tree = self.revision_tree(rh[revno-1])
640
old_tree = EmptyTree()
642
old_tree = self.revision_tree(rh[revno-2])
644
return compare_trees(old_tree, new_tree)
648
def get_revision_sha1(self, revision_id):
649
"""Hash the stored value of a revision, and return it."""
650
# In the future, revision entries will be signed. At that
651
# point, it is probably best *not* to include the signature
652
# in the revision hash. Because that lets you re-sign
653
# the revision, (add signatures/remove signatures) and still
654
# have all hash pointers stay consistent.
655
# But for now, just hash the contents.
656
return bzrlib.osutils.sha_file(self.get_revision_xml(revision_id))
659
def get_inventory(self, inventory_id):
660
"""Get Inventory object by hash.
662
TODO: Perhaps for this and similar methods, take a revision
663
parameter which can be either an integer revno or a
665
from bzrlib.inventory import Inventory
666
from bzrlib.xml import unpack_xml
668
return unpack_xml(Inventory, self.get_inventory_xml(inventory_id))
671
def get_inventory_xml(self, inventory_id):
672
"""Get inventory XML as a file object."""
673
return self.inventory_store[inventory_id]
676
def get_inventory_sha1(self, inventory_id):
677
"""Return the sha1 hash of the inventory entry
679
return sha_file(self.get_inventory_xml(inventory_id))
682
def get_revision_inventory(self, revision_id):
683
"""Return inventory of a past revision."""
684
# bzr 0.0.6 imposes the constraint that the inventory_id
685
# must be the same as its revision, so this is trivial.
686
if revision_id == None:
687
from bzrlib.inventory import Inventory
688
return Inventory(self.get_root_id())
690
return self.get_inventory(revision_id)
693
def revision_history(self):
694
"""Return sequence of revision hashes on to this branch.
696
>>> ScratchBranch().revision_history()
701
return [l.rstrip('\r\n') for l in
702
self.controlfile('revision-history', 'r').readlines()]
707
def common_ancestor(self, other, self_revno=None, other_revno=None):
710
>>> sb = ScratchBranch(files=['foo', 'foo~'])
711
>>> sb.common_ancestor(sb) == (None, None)
713
>>> commit.commit(sb, "Committing first revision", verbose=False)
714
>>> sb.common_ancestor(sb)[0]
716
>>> clone = sb.clone()
717
>>> commit.commit(sb, "Committing second revision", verbose=False)
718
>>> sb.common_ancestor(sb)[0]
720
>>> sb.common_ancestor(clone)[0]
722
>>> commit.commit(clone, "Committing divergent second revision",
724
>>> sb.common_ancestor(clone)[0]
726
>>> sb.common_ancestor(clone) == clone.common_ancestor(sb)
728
>>> sb.common_ancestor(sb) != clone.common_ancestor(clone)
730
>>> clone2 = sb.clone()
731
>>> sb.common_ancestor(clone2)[0]
733
>>> sb.common_ancestor(clone2, self_revno=1)[0]
735
>>> sb.common_ancestor(clone2, other_revno=1)[0]
738
my_history = self.revision_history()
739
other_history = other.revision_history()
740
if self_revno is None:
741
self_revno = len(my_history)
742
if other_revno is None:
743
other_revno = len(other_history)
744
indices = range(min((self_revno, other_revno)))
747
if my_history[r] == other_history[r]:
748
return r+1, my_history[r]
753
"""Return current revision number for this branch.
755
That is equivalent to the number of revisions committed to
758
return len(self.revision_history())
761
def last_patch(self):
762
"""Return last patch hash, or None if no history.
764
ph = self.revision_history()
771
def missing_revisions(self, other, stop_revision=None, diverged_ok=False):
773
If self and other have not diverged, return a list of the revisions
774
present in other, but missing from self.
776
>>> from bzrlib.commit import commit
777
>>> bzrlib.trace.silent = True
778
>>> br1 = ScratchBranch()
779
>>> br2 = ScratchBranch()
780
>>> br1.missing_revisions(br2)
782
>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
783
>>> br1.missing_revisions(br2)
785
>>> br2.missing_revisions(br1)
787
>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
788
>>> br1.missing_revisions(br2)
790
>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
791
>>> br1.missing_revisions(br2)
793
>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
794
>>> br1.missing_revisions(br2)
795
Traceback (most recent call last):
796
DivergedBranches: These branches have diverged.
798
self_history = self.revision_history()
799
self_len = len(self_history)
800
other_history = other.revision_history()
801
other_len = len(other_history)
802
common_index = min(self_len, other_len) -1
803
if common_index >= 0 and \
804
self_history[common_index] != other_history[common_index]:
805
raise DivergedBranches(self, other)
807
if stop_revision is None:
808
stop_revision = other_len
809
elif stop_revision > other_len:
810
raise NoSuchRevision(self, stop_revision)
812
return other_history[self_len:stop_revision]
815
def update_revisions(self, other, stop_revision=None):
816
"""Pull in all new revisions from other branch.
818
>>> from bzrlib.commit import commit
819
>>> bzrlib.trace.silent = True
820
>>> br1 = ScratchBranch(files=['foo', 'bar'])
823
>>> commit(br1, "lala!", rev_id="REVISION-ID-1", verbose=False)
824
>>> br2 = ScratchBranch()
825
>>> br2.update_revisions(br1)
829
>>> br2.revision_history()
831
>>> br2.update_revisions(br1)
833
>>> br1.text_store.total_size() == br2.text_store.total_size()
836
from bzrlib.fetch import greedy_fetch
838
pb.update('comparing histories')
839
revision_ids = self.missing_revisions(other, stop_revision)
840
if len(revision_ids) > 0:
841
count = greedy_fetch(self, other, revision_ids[-1], pb)[0]
844
self.append_revision(*revision_ids)
845
print "Added %d revisions." % count
847
def install_revisions(self, other, revision_ids, pb=None):
850
if hasattr(other.revision_store, "prefetch"):
851
other.revision_store.prefetch(revision_ids)
852
if hasattr(other.inventory_store, "prefetch"):
853
inventory_ids = [other.get_revision(r).inventory_id
854
for r in revision_ids]
855
other.inventory_store.prefetch(inventory_ids)
861
for i, rev_id in enumerate(revision_ids):
862
pb.update('fetching revision', i+1, len(revision_ids))
864
rev = other.get_revision(rev_id)
865
except bzrlib.errors.NoSuchRevision:
868
revisions.append(rev)
869
inv = other.get_inventory(str(rev.inventory_id))
870
for key, entry in inv.iter_entries():
871
if entry.text_id is None:
873
if entry.text_id not in self.text_store:
874
needed_texts.add(entry.text_id)
878
count, cp_fail = self.text_store.copy_multi(other.text_store,
880
print "Added %d texts." % count
881
inventory_ids = [ f.inventory_id for f in revisions ]
882
count, cp_fail = self.inventory_store.copy_multi(other.inventory_store,
884
print "Added %d inventories." % count
885
revision_ids = [ f.revision_id for f in revisions]
886
count, cp_fail = self.revision_store.copy_multi(other.revision_store,
889
assert len(cp_fail) == 0
890
return count, failures
892
def commit(self, *args, **kw):
893
from bzrlib.commit import commit
894
commit(self, *args, **kw)
897
def lookup_revision(self, revision):
898
"""Return the revision identifier for a given revision information."""
899
revno, info = self._get_revision_info(revision)
902
def get_revision_info(self, revision):
903
"""Return (revno, revision id) for revision identifier.
905
revision can be an integer, in which case it is assumed to be revno (though
906
this will translate negative values into positive ones)
907
revision can also be a string, in which case it is parsed for something like
908
'date:' or 'revid:' etc.
910
revno, rev_id = self._get_revision_info(revision)
912
raise bzrlib.errors.NoSuchRevision(self, revision)
915
def get_rev_id(self, revno, history=None):
916
"""Find the revision id of the specified revno."""
920
history = self.revision_history()
921
elif revno <= 0 or revno > len(history):
922
raise bzrlib.errors.NoSuchRevision(self, revno)
923
return history[revno - 1]
925
def _get_revision_info(self, revision):
926
"""Return (revno, revision id) for revision specifier.
928
revision can be an integer, in which case it is assumed to be revno
929
(though this will translate negative values into positive ones)
930
revision can also be a string, in which case it is parsed for something
931
like 'date:' or 'revid:' etc.
933
A revid is always returned. If it is None, the specifier referred to
934
the null revision. If the revid does not occur in the revision
935
history, revno will be None.
941
try:# Convert to int if possible
942
revision = int(revision)
945
revs = self.revision_history()
946
if isinstance(revision, int):
948
revno = len(revs) + revision + 1
951
rev_id = self.get_rev_id(revno, revs)
952
elif isinstance(revision, basestring):
953
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
954
if revision.startswith(prefix):
955
result = func(self, revs, revision)
957
revno, rev_id = result
960
rev_id = self.get_rev_id(revno, revs)
963
raise BzrError('No namespace registered for string: %r' %
966
raise TypeError('Unhandled revision type %s' % revision)
970
raise bzrlib.errors.NoSuchRevision(self, revision)
973
def _namespace_revno(self, revs, revision):
974
"""Lookup a revision by revision number"""
975
assert revision.startswith('revno:')
977
return (int(revision[6:]),)
980
REVISION_NAMESPACES['revno:'] = _namespace_revno
982
def _namespace_revid(self, revs, revision):
983
assert revision.startswith('revid:')
984
rev_id = revision[len('revid:'):]
986
return revs.index(rev_id) + 1, rev_id
989
REVISION_NAMESPACES['revid:'] = _namespace_revid
991
def _namespace_last(self, revs, revision):
992
assert revision.startswith('last:')
994
offset = int(revision[5:])
999
raise BzrError('You must supply a positive value for --revision last:XXX')
1000
return (len(revs) - offset + 1,)
1001
REVISION_NAMESPACES['last:'] = _namespace_last
1003
def _namespace_tag(self, revs, revision):
1004
assert revision.startswith('tag:')
1005
raise BzrError('tag: namespace registered, but not implemented.')
1006
REVISION_NAMESPACES['tag:'] = _namespace_tag
1008
def _namespace_date(self, revs, revision):
1009
assert revision.startswith('date:')
1011
# Spec for date revisions:
1013
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
1014
# it can also start with a '+/-/='. '+' says match the first
1015
# entry after the given date. '-' is match the first entry before the date
1016
# '=' is match the first entry after, but still on the given date.
1018
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
1019
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
1020
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
1021
# May 13th, 2005 at 0:00
1023
# So the proper way of saying 'give me all entries for today' is:
1024
# -r {date:+today}:{date:-tomorrow}
1025
# The default is '=' when not supplied
1028
if val[:1] in ('+', '-', '='):
1029
match_style = val[:1]
1032
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
1033
if val.lower() == 'yesterday':
1034
dt = today - datetime.timedelta(days=1)
1035
elif val.lower() == 'today':
1037
elif val.lower() == 'tomorrow':
1038
dt = today + datetime.timedelta(days=1)
1041
# This should be done outside the function to avoid recompiling it.
1042
_date_re = re.compile(
1043
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
1045
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
1047
m = _date_re.match(val)
1048
if not m or (not m.group('date') and not m.group('time')):
1049
raise BzrError('Invalid revision date %r' % revision)
1052
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
1054
year, month, day = today.year, today.month, today.day
1056
hour = int(m.group('hour'))
1057
minute = int(m.group('minute'))
1058
if m.group('second'):
1059
second = int(m.group('second'))
1063
hour, minute, second = 0,0,0
1065
dt = datetime.datetime(year=year, month=month, day=day,
1066
hour=hour, minute=minute, second=second)
1070
if match_style == '-':
1072
elif match_style == '=':
1073
last = dt + datetime.timedelta(days=1)
1076
for i in range(len(revs)-1, -1, -1):
1077
r = self.get_revision(revs[i])
1078
# TODO: Handle timezone.
1079
dt = datetime.datetime.fromtimestamp(r.timestamp)
1080
if first >= dt and (last is None or dt >= last):
1083
for i in range(len(revs)):
1084
r = self.get_revision(revs[i])
1085
# TODO: Handle timezone.
1086
dt = datetime.datetime.fromtimestamp(r.timestamp)
1087
if first <= dt and (last is None or dt <= last):
1089
REVISION_NAMESPACES['date:'] = _namespace_date
1091
def revision_tree(self, revision_id):
1092
"""Return Tree for a revision on this branch.
1094
`revision_id` may be None for the null revision, in which case
1095
an `EmptyTree` is returned."""
1096
# TODO: refactor this to use an existing revision object
1097
# so we don't need to read it in twice.
1098
if revision_id == None:
1101
inv = self.get_revision_inventory(revision_id)
1102
return RevisionTree(self.text_store, inv)
1105
def working_tree(self):
1106
"""Return a `Tree` for the working copy."""
1107
from workingtree import WorkingTree
1108
return WorkingTree(self.base, self.read_working_inventory())
1111
def basis_tree(self):
1112
"""Return `Tree` object for last revision.
1114
If there are no revisions yet, return an `EmptyTree`.
1116
r = self.last_patch()
1120
return RevisionTree(self.text_store, self.get_revision_inventory(r))
1124
def rename_one(self, from_rel, to_rel):
1127
This can change the directory or the filename or both.
1131
tree = self.working_tree()
1132
inv = tree.inventory
1133
if not tree.has_filename(from_rel):
1134
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1135
if tree.has_filename(to_rel):
1136
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1138
file_id = inv.path2id(from_rel)
1140
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1142
if inv.path2id(to_rel):
1143
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1145
to_dir, to_tail = os.path.split(to_rel)
1146
to_dir_id = inv.path2id(to_dir)
1147
if to_dir_id == None and to_dir != '':
1148
raise BzrError("can't determine destination directory id for %r" % to_dir)
1150
mutter("rename_one:")
1151
mutter(" file_id {%s}" % file_id)
1152
mutter(" from_rel %r" % from_rel)
1153
mutter(" to_rel %r" % to_rel)
1154
mutter(" to_dir %r" % to_dir)
1155
mutter(" to_dir_id {%s}" % to_dir_id)
1157
inv.rename(file_id, to_dir_id, to_tail)
1159
print "%s => %s" % (from_rel, to_rel)
1161
from_abs = self.abspath(from_rel)
1162
to_abs = self.abspath(to_rel)
1164
os.rename(from_abs, to_abs)
1166
raise BzrError("failed to rename %r to %r: %s"
1167
% (from_abs, to_abs, e[1]),
1168
["rename rolled back"])
1170
self._write_inventory(inv)
1175
def move(self, from_paths, to_name):
1178
to_name must exist as a versioned directory.
1180
If to_name exists and is a directory, the files are moved into
1181
it, keeping their old names. If it is a directory,
1183
Note that to_name is only the last component of the new name;
1184
this doesn't change the directory.
1188
## TODO: Option to move IDs only
1189
assert not isinstance(from_paths, basestring)
1190
tree = self.working_tree()
1191
inv = tree.inventory
1192
to_abs = self.abspath(to_name)
1193
if not isdir(to_abs):
1194
raise BzrError("destination %r is not a directory" % to_abs)
1195
if not tree.has_filename(to_name):
1196
raise BzrError("destination %r not in working directory" % to_abs)
1197
to_dir_id = inv.path2id(to_name)
1198
if to_dir_id == None and to_name != '':
1199
raise BzrError("destination %r is not a versioned directory" % to_name)
1200
to_dir_ie = inv[to_dir_id]
1201
if to_dir_ie.kind not in ('directory', 'root_directory'):
1202
raise BzrError("destination %r is not a directory" % to_abs)
1204
to_idpath = inv.get_idpath(to_dir_id)
1206
for f in from_paths:
1207
if not tree.has_filename(f):
1208
raise BzrError("%r does not exist in working tree" % f)
1209
f_id = inv.path2id(f)
1211
raise BzrError("%r is not versioned" % f)
1212
name_tail = splitpath(f)[-1]
1213
dest_path = appendpath(to_name, name_tail)
1214
if tree.has_filename(dest_path):
1215
raise BzrError("destination %r already exists" % dest_path)
1216
if f_id in to_idpath:
1217
raise BzrError("can't move %r to a subdirectory of itself" % f)
1219
# OK, so there's a race here, it's possible that someone will
1220
# create a file in this interval and then the rename might be
1221
# left half-done. But we should have caught most problems.
1223
for f in from_paths:
1224
name_tail = splitpath(f)[-1]
1225
dest_path = appendpath(to_name, name_tail)
1226
print "%s => %s" % (f, dest_path)
1227
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1229
os.rename(self.abspath(f), self.abspath(dest_path))
1231
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1232
["rename rolled back"])
1234
self._write_inventory(inv)
1239
def revert(self, filenames, old_tree=None, backups=True):
1240
"""Restore selected files to the versions from a previous tree.
1243
If true (default) backups are made of files before
1246
from bzrlib.errors import NotVersionedError, BzrError
1247
from bzrlib.atomicfile import AtomicFile
1248
from bzrlib.osutils import backup_file
1250
inv = self.read_working_inventory()
1251
if old_tree is None:
1252
old_tree = self.basis_tree()
1253
old_inv = old_tree.inventory
1256
for fn in filenames:
1257
file_id = inv.path2id(fn)
1259
raise NotVersionedError("not a versioned file", fn)
1260
if not old_inv.has_id(file_id):
1261
raise BzrError("file not present in old tree", fn, file_id)
1262
nids.append((fn, file_id))
1264
# TODO: Rename back if it was previously at a different location
1266
# TODO: If given a directory, restore the entire contents from
1267
# the previous version.
1269
# TODO: Make a backup to a temporary file.
1271
# TODO: If the file previously didn't exist, delete it?
1272
for fn, file_id in nids:
1275
f = AtomicFile(fn, 'wb')
1277
f.write(old_tree.get_file(file_id).read())
1283
def pending_merges(self):
1284
"""Return a list of pending merges.
1286
These are revisions that have been merged into the working
1287
directory but not yet committed.
1289
cfn = self.controlfilename('pending-merges')
1290
if not os.path.exists(cfn):
1293
for l in self.controlfile('pending-merges', 'r').readlines():
1294
p.append(l.rstrip('\n'))
1298
def add_pending_merge(self, revision_id):
1299
from bzrlib.revision import validate_revision_id
1301
validate_revision_id(revision_id)
1303
p = self.pending_merges()
1304
if revision_id in p:
1306
p.append(revision_id)
1307
self.set_pending_merges(p)
1310
def set_pending_merges(self, rev_list):
1311
from bzrlib.atomicfile import AtomicFile
1314
f = AtomicFile(self.controlfilename('pending-merges'))
1326
class ScratchBranch(Branch):
1327
"""Special test class: a branch that cleans up after itself.
1329
>>> b = ScratchBranch()
1337
def __init__(self, files=[], dirs=[], base=None):
1338
"""Make a test branch.
1340
This creates a temporary directory and runs init-tree in it.
1342
If any files are listed, they are created in the working copy.
1344
from tempfile import mkdtemp
1349
Branch.__init__(self, base, init=init)
1351
os.mkdir(self.abspath(d))
1354
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1359
>>> orig = ScratchBranch(files=["file1", "file2"])
1360
>>> clone = orig.clone()
1361
>>> os.path.samefile(orig.base, clone.base)
1363
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1366
from shutil import copytree
1367
from tempfile import mkdtemp
1370
copytree(self.base, base, symlinks=True)
1371
return ScratchBranch(base=base)
1377
"""Destroy the test branch, removing the scratch directory."""
1378
from shutil import rmtree
1381
mutter("delete ScratchBranch %s" % self.base)
1384
# Work around for shutil.rmtree failing on Windows when
1385
# readonly files are encountered
1386
mutter("hit exception in destroying ScratchBranch: %s" % e)
1387
for root, dirs, files in os.walk(self.base, topdown=False):
1389
os.chmod(os.path.join(root, name), 0700)
1395
######################################################################
1399
def is_control_file(filename):
1400
## FIXME: better check
1401
filename = os.path.normpath(filename)
1402
while filename != '':
1403
head, tail = os.path.split(filename)
1404
## mutter('check %r for control file' % ((head, tail), ))
1405
if tail == bzrlib.BZRDIR:
1407
if filename == head:
1414
def gen_file_id(name):
1415
"""Return new file id.
1417
This should probably generate proper UUIDs, but for the moment we
1418
cope with just randomness because running uuidgen every time is
1421
from binascii import hexlify
1422
from time import time
1424
# get last component
1425
idx = name.rfind('/')
1427
name = name[idx+1 : ]
1428
idx = name.rfind('\\')
1430
name = name[idx+1 : ]
1432
# make it not a hidden file
1433
name = name.lstrip('.')
1435
# remove any wierd characters; we don't escape them but rather
1436
# just pull them out
1437
name = re.sub(r'[^\w.]', '', name)
1439
s = hexlify(rand_bytes(8))
1440
return '-'.join((name, compact_date(time()), s))
1444
"""Return a new tree-root file id."""
1445
return gen_file_id('TREE_ROOT')