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
27
from bzrlib.errors import BzrError, InvalidRevisionNumber, InvalidRevisionId
29
from bzrlib.textui import show_status
30
from bzrlib.revision import Revision
31
from bzrlib.xml import unpack_xml
32
from bzrlib.delta import compare_trees
33
from bzrlib.tree import EmptyTree, RevisionTree
38
BZR_BRANCH_FORMAT = "Bazaar-NG branch, format 0.0.4\n"
39
## TODO: Maybe include checks for common corruption of newlines, etc?
42
# TODO: Some operations like log might retrieve the same revisions
43
# repeatedly to calculate deltas. We could perhaps have a weakref
44
# cache in memory to make this faster.
46
# TODO: please move the revision-string syntax stuff out of the branch
47
# object; it's clutter
50
def find_branch(f, **args):
51
if f and (f.startswith('http://') or f.startswith('https://')):
53
return remotebranch.RemoteBranch(f, **args)
55
return Branch(f, **args)
58
def find_cached_branch(f, cache_root, **args):
59
from remotebranch import RemoteBranch
60
br = find_branch(f, **args)
61
def cacheify(br, store_name):
62
from meta_store import CachedStore
63
cache_path = os.path.join(cache_root, store_name)
65
new_store = CachedStore(getattr(br, store_name), cache_path)
66
setattr(br, store_name, new_store)
68
if isinstance(br, RemoteBranch):
69
cacheify(br, 'inventory_store')
70
cacheify(br, 'text_store')
71
cacheify(br, 'revision_store')
75
def _relpath(base, path):
76
"""Return path relative to base, or raise exception.
78
The path may be either an absolute path or a path relative to the
79
current working directory.
81
Lifted out of Branch.relpath for ease of testing.
83
os.path.commonprefix (python2.4) has a bad bug that it works just
84
on string prefixes, assuming that '/u' is a prefix of '/u2'. This
85
avoids that problem."""
86
rp = os.path.abspath(path)
90
while len(head) >= len(base):
93
head, tail = os.path.split(head)
97
from errors import NotBranchError
98
raise NotBranchError("path %r is not within branch %r" % (rp, base))
100
return os.sep.join(s)
103
def find_branch_root(f=None):
104
"""Find the branch root enclosing f, or pwd.
106
f may be a filename or a URL.
108
It is not necessary that f exists.
110
Basically we keep looking up until we find the control directory or
111
run into the root. If there isn't one, raises NotBranchError.
115
elif hasattr(os.path, 'realpath'):
116
f = os.path.realpath(f)
118
f = os.path.abspath(f)
119
if not os.path.exists(f):
120
raise BzrError('%r does not exist' % f)
126
if os.path.exists(os.path.join(f, bzrlib.BZRDIR)):
128
head, tail = os.path.split(f)
130
# reached the root, whatever that may be
131
raise bzrlib.errors.NotBranchError('%s is not in a branch' % orig_f)
136
# XXX: move into bzrlib.errors; subclass BzrError
137
class DivergedBranches(Exception):
138
def __init__(self, branch1, branch2):
139
self.branch1 = branch1
140
self.branch2 = branch2
141
Exception.__init__(self, "These branches have diverged.")
144
######################################################################
147
class Branch(object):
148
"""Branch holding a history of revisions.
151
Base directory of the branch.
157
If _lock_mode is true, a positive count of the number of times the
161
Lock object from bzrlib.lock.
168
# Map some sort of prefix into a namespace
169
# stuff like "revno:10", "revid:", etc.
170
# This should match a prefix with a function which accepts
171
REVISION_NAMESPACES = {}
173
def __init__(self, base, init=False, find_root=True):
174
"""Create new branch object at a particular location.
176
base -- Base directory for the branch.
178
init -- If True, create new control files in a previously
179
unversioned directory. If False, the branch must already
182
find_root -- If true and init is false, find the root of the
183
existing branch containing base.
185
In the test suite, creation of new trees is tested using the
186
`ScratchBranch` class.
188
from bzrlib.store import ImmutableStore
190
self.base = os.path.realpath(base)
193
self.base = find_branch_root(base)
195
self.base = os.path.realpath(base)
196
if not isdir(self.controlfilename('.')):
197
from errors import NotBranchError
198
raise NotBranchError("not a bzr branch: %s" % quotefn(base),
199
['use "bzr init" to initialize a new working tree',
200
'current bzr can only operate from top-of-tree'])
203
self.text_store = ImmutableStore(self.controlfilename('text-store'))
204
self.revision_store = ImmutableStore(self.controlfilename('revision-store'))
205
self.inventory_store = ImmutableStore(self.controlfilename('inventory-store'))
209
return '%s(%r)' % (self.__class__.__name__, self.base)
216
if self._lock_mode or self._lock:
217
from warnings import warn
218
warn("branch %r was not explicitly unlocked" % self)
222
def lock_write(self):
224
if self._lock_mode != 'w':
225
from errors import LockError
226
raise LockError("can't upgrade to a write lock from %r" %
228
self._lock_count += 1
230
from bzrlib.lock import WriteLock
232
self._lock = WriteLock(self.controlfilename('branch-lock'))
233
self._lock_mode = 'w'
239
assert self._lock_mode in ('r', 'w'), \
240
"invalid lock mode %r" % self._lock_mode
241
self._lock_count += 1
243
from bzrlib.lock import ReadLock
245
self._lock = ReadLock(self.controlfilename('branch-lock'))
246
self._lock_mode = 'r'
250
if not self._lock_mode:
251
from errors import LockError
252
raise LockError('branch %r is not locked' % (self))
254
if self._lock_count > 1:
255
self._lock_count -= 1
259
self._lock_mode = self._lock_count = None
261
def abspath(self, name):
262
"""Return absolute filename for something in the branch"""
263
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)
271
def controlfilename(self, file_or_path):
272
"""Return location relative to branch."""
273
if isinstance(file_or_path, basestring):
274
file_or_path = [file_or_path]
275
return os.path.join(self.base, bzrlib.BZRDIR, *file_or_path)
278
def controlfile(self, file_or_path, mode='r'):
279
"""Open a control file for this branch.
281
There are two classes of file in the control directory: text
282
and binary. binary files are untranslated byte streams. Text
283
control files are stored with Unix newlines and in UTF-8, even
284
if the platform or locale defaults are different.
286
Controlfiles should almost never be opened in write mode but
287
rather should be atomically copied and replaced using atomicfile.
290
fn = self.controlfilename(file_or_path)
292
if mode == 'rb' or mode == 'wb':
293
return file(fn, mode)
294
elif mode == 'r' or mode == 'w':
295
# open in binary mode anyhow so there's no newline translation;
296
# codecs uses line buffering by default; don't want that.
298
return codecs.open(fn, mode + 'b', 'utf-8',
301
raise BzrError("invalid controlfile mode %r" % mode)
303
def _make_control(self):
304
from bzrlib.inventory import Inventory
305
from bzrlib.xml import pack_xml
307
os.mkdir(self.controlfilename([]))
308
self.controlfile('README', 'w').write(
309
"This is a Bazaar-NG control directory.\n"
310
"Do not change any files in this directory.\n")
311
self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT)
312
for d in ('text-store', 'inventory-store', 'revision-store'):
313
os.mkdir(self.controlfilename(d))
314
for f in ('revision-history', 'merged-patches',
315
'pending-merged-patches', 'branch-name',
318
self.controlfile(f, 'w').write('')
319
mutter('created control directory in ' + self.base)
321
# if we want per-tree root ids then this is the place to set
322
# them; they're not needed for now and so ommitted for
324
pack_xml(Inventory(), self.controlfile('inventory','w'))
326
def _check_format(self):
327
"""Check this branch format is supported.
329
The current tool only supports the current unstable format.
331
In the future, we might need different in-memory Branch
332
classes to support downlevel branches. But not yet.
334
# This ignores newlines so that we can open branches created
335
# on Windows from Linux and so on. I think it might be better
336
# to always make all internal files in unix format.
337
fmt = self.controlfile('branch-format', 'r').read()
338
fmt.replace('\r\n', '')
339
if fmt != BZR_BRANCH_FORMAT:
340
raise BzrError('sorry, branch format %r not supported' % fmt,
341
['use a different bzr version',
342
'or remove the .bzr directory and "bzr init" again'])
344
def get_root_id(self):
345
"""Return the id of this branches root"""
346
inv = self.read_working_inventory()
347
return inv.root.file_id
349
def set_root_id(self, file_id):
350
inv = self.read_working_inventory()
351
orig_root_id = inv.root.file_id
352
del inv._byid[inv.root.file_id]
353
inv.root.file_id = file_id
354
inv._byid[inv.root.file_id] = inv.root
357
if entry.parent_id in (None, orig_root_id):
358
entry.parent_id = inv.root.file_id
359
self._write_inventory(inv)
361
def read_working_inventory(self):
362
"""Read the working inventory."""
363
from bzrlib.inventory import Inventory
364
from bzrlib.xml import unpack_xml
365
from time import time
369
# ElementTree does its own conversion from UTF-8, so open in
371
inv = unpack_xml(Inventory,
372
self.controlfile('inventory', 'rb'))
373
mutter("loaded inventory of %d items in %f"
374
% (len(inv), time() - before))
380
def _write_inventory(self, inv):
381
"""Update the working inventory.
383
That is to say, the inventory describing changes underway, that
384
will be committed to the next revision.
386
from bzrlib.atomicfile import AtomicFile
387
from bzrlib.xml import pack_xml
391
f = AtomicFile(self.controlfilename('inventory'), 'wb')
400
mutter('wrote working inventory')
403
inventory = property(read_working_inventory, _write_inventory, None,
404
"""Inventory for the working copy.""")
407
def add(self, files, verbose=False, ids=None):
408
"""Make files versioned.
410
Note that the command line normally calls smart_add instead.
412
This puts the files in the Added state, so that they will be
413
recorded by the next commit.
416
List of paths to add, relative to the base of the tree.
419
If set, use these instead of automatically generated ids.
420
Must be the same length as the list of files, but may
421
contain None for ids that are to be autogenerated.
423
TODO: Perhaps have an option to add the ids even if the files do
426
TODO: Perhaps return the ids of the files? But then again it
427
is easy to retrieve them if they're needed.
429
TODO: Adding a directory should optionally recurse down and
430
add all non-ignored children. Perhaps do that in a
433
# TODO: Re-adding a file that is removed in the working copy
434
# should probably put it back with the previous ID.
435
if isinstance(files, basestring):
436
assert(ids is None or isinstance(ids, basestring))
442
ids = [None] * len(files)
444
assert(len(ids) == len(files))
448
inv = self.read_working_inventory()
449
for f,file_id in zip(files, ids):
450
if is_control_file(f):
451
raise BzrError("cannot add control file %s" % quotefn(f))
456
raise BzrError("cannot add top-level %r" % f)
458
fullpath = os.path.normpath(self.abspath(f))
461
kind = file_kind(fullpath)
463
# maybe something better?
464
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
466
if kind != 'file' and kind != 'directory':
467
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
470
file_id = gen_file_id(f)
471
inv.add_path(f, kind=kind, file_id=file_id)
474
print 'added', quotefn(f)
476
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
478
self._write_inventory(inv)
483
def print_file(self, file, revno):
484
"""Print `file` to stdout."""
487
tree = self.revision_tree(self.lookup_revision(revno))
488
# use inventory as it was in that revision
489
file_id = tree.inventory.path2id(file)
491
raise BzrError("%r is not present in revision %s" % (file, revno))
492
tree.print_file(file_id)
497
def remove(self, files, verbose=False):
498
"""Mark nominated files for removal from the inventory.
500
This does not remove their text. This does not run on
502
TODO: Refuse to remove modified files unless --force is given?
504
TODO: Do something useful with directories.
506
TODO: Should this remove the text or not? Tough call; not
507
removing may be useful and the user can just use use rm, and
508
is the opposite of add. Removing it is consistent with most
509
other tools. Maybe an option.
511
## TODO: Normalize names
512
## TODO: Remove nested loops; better scalability
513
if isinstance(files, basestring):
519
tree = self.working_tree()
522
# do this before any modifications
526
raise BzrError("cannot remove unversioned file %s" % quotefn(f))
527
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
529
# having remove it, it must be either ignored or unknown
530
if tree.is_ignored(f):
534
show_status(new_status, inv[fid].kind, quotefn(f))
537
self._write_inventory(inv)
542
# FIXME: this doesn't need to be a branch method
543
def set_inventory(self, new_inventory_list):
544
from bzrlib.inventory import Inventory, InventoryEntry
545
inv = Inventory(self.get_root_id())
546
for path, file_id, parent, kind in new_inventory_list:
547
name = os.path.basename(path)
550
inv.add(InventoryEntry(file_id, name, kind, parent))
551
self._write_inventory(inv)
555
"""Return all unknown files.
557
These are files in the working directory that are not versioned or
558
control files or ignored.
560
>>> b = ScratchBranch(files=['foo', 'foo~'])
561
>>> list(b.unknowns())
564
>>> list(b.unknowns())
567
>>> list(b.unknowns())
570
return self.working_tree().unknowns()
573
def append_revision(self, *revision_ids):
574
from bzrlib.atomicfile import AtomicFile
576
for revision_id in revision_ids:
577
mutter("add {%s} to revision-history" % revision_id)
579
rev_history = self.revision_history()
580
rev_history.extend(revision_ids)
582
f = AtomicFile(self.controlfilename('revision-history'))
584
for rev_id in rev_history:
591
def get_revision_xml(self, revision_id):
592
"""Return XML file object for revision object."""
593
if not revision_id or not isinstance(revision_id, basestring):
594
raise InvalidRevisionId(revision_id)
599
return self.revision_store[revision_id]
601
raise bzrlib.errors.NoSuchRevision(self, revision_id)
606
def get_revision(self, revision_id):
607
"""Return the Revision object for a named revision"""
608
xml_file = self.get_revision_xml(revision_id)
611
r = unpack_xml(Revision, xml_file)
612
except SyntaxError, e:
613
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
617
assert r.revision_id == revision_id
621
def get_revision_delta(self, revno):
622
"""Return the delta for one revision.
624
The delta is relative to its mainline predecessor, or the
625
empty tree for revision 1.
627
assert isinstance(revno, int)
628
rh = self.revision_history()
629
if not (1 <= revno <= len(rh)):
630
raise InvalidRevisionNumber(revno)
632
# revno is 1-based; list is 0-based
634
new_tree = self.revision_tree(rh[revno-1])
636
old_tree = EmptyTree()
638
old_tree = self.revision_tree(rh[revno-2])
640
return compare_trees(old_tree, new_tree)
644
def get_revision_sha1(self, revision_id):
645
"""Hash the stored value of a revision, and return it."""
646
# In the future, revision entries will be signed. At that
647
# point, it is probably best *not* to include the signature
648
# in the revision hash. Because that lets you re-sign
649
# the revision, (add signatures/remove signatures) and still
650
# have all hash pointers stay consistent.
651
# But for now, just hash the contents.
652
return bzrlib.osutils.sha_file(self.get_revision_xml(revision_id))
655
def get_inventory(self, inventory_id):
656
"""Get Inventory object by hash.
658
TODO: Perhaps for this and similar methods, take a revision
659
parameter which can be either an integer revno or a
661
from bzrlib.inventory import Inventory
662
from bzrlib.xml import unpack_xml
664
return unpack_xml(Inventory, self.get_inventory_xml(inventory_id))
667
def get_inventory_xml(self, inventory_id):
668
"""Get inventory XML as a file object."""
669
return self.inventory_store[inventory_id]
672
def get_inventory_sha1(self, inventory_id):
673
"""Return the sha1 hash of the inventory entry
675
return sha_file(self.get_inventory_xml(inventory_id))
678
def get_revision_inventory(self, revision_id):
679
"""Return inventory of a past revision."""
680
# bzr 0.0.6 imposes the constraint that the inventory_id
681
# must be the same as its revision, so this is trivial.
682
if revision_id == None:
683
from bzrlib.inventory import Inventory
684
return Inventory(self.get_root_id())
686
return self.get_inventory(revision_id)
689
def revision_history(self):
690
"""Return sequence of revision hashes on to this branch.
692
>>> ScratchBranch().revision_history()
697
return [l.rstrip('\r\n') for l in
698
self.controlfile('revision-history', 'r').readlines()]
703
def common_ancestor(self, other, self_revno=None, other_revno=None):
706
>>> sb = ScratchBranch(files=['foo', 'foo~'])
707
>>> sb.common_ancestor(sb) == (None, None)
709
>>> commit.commit(sb, "Committing first revision", verbose=False)
710
>>> sb.common_ancestor(sb)[0]
712
>>> clone = sb.clone()
713
>>> commit.commit(sb, "Committing second revision", verbose=False)
714
>>> sb.common_ancestor(sb)[0]
716
>>> sb.common_ancestor(clone)[0]
718
>>> commit.commit(clone, "Committing divergent second revision",
720
>>> sb.common_ancestor(clone)[0]
722
>>> sb.common_ancestor(clone) == clone.common_ancestor(sb)
724
>>> sb.common_ancestor(sb) != clone.common_ancestor(clone)
726
>>> clone2 = sb.clone()
727
>>> sb.common_ancestor(clone2)[0]
729
>>> sb.common_ancestor(clone2, self_revno=1)[0]
731
>>> sb.common_ancestor(clone2, other_revno=1)[0]
734
my_history = self.revision_history()
735
other_history = other.revision_history()
736
if self_revno is None:
737
self_revno = len(my_history)
738
if other_revno is None:
739
other_revno = len(other_history)
740
indices = range(min((self_revno, other_revno)))
743
if my_history[r] == other_history[r]:
744
return r+1, my_history[r]
749
"""Return current revision number for this branch.
751
That is equivalent to the number of revisions committed to
754
return len(self.revision_history())
757
def last_patch(self):
758
"""Return last patch hash, or None if no history.
760
ph = self.revision_history()
767
def missing_revisions(self, other, stop_revision=None, diverged_ok=False):
769
If self and other have not diverged, return a list of the revisions
770
present in other, but missing from self.
772
>>> from bzrlib.commit import commit
773
>>> bzrlib.trace.silent = True
774
>>> br1 = ScratchBranch()
775
>>> br2 = ScratchBranch()
776
>>> br1.missing_revisions(br2)
778
>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
779
>>> br1.missing_revisions(br2)
781
>>> br2.missing_revisions(br1)
783
>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
784
>>> br1.missing_revisions(br2)
786
>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
787
>>> br1.missing_revisions(br2)
789
>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
790
>>> br1.missing_revisions(br2)
791
Traceback (most recent call last):
792
DivergedBranches: These branches have diverged.
794
self_history = self.revision_history()
795
self_len = len(self_history)
796
other_history = other.revision_history()
797
other_len = len(other_history)
798
common_index = min(self_len, other_len) -1
799
if common_index >= 0 and \
800
self_history[common_index] != other_history[common_index]:
801
raise DivergedBranches(self, other)
803
if stop_revision is None:
804
stop_revision = other_len
805
elif stop_revision > other_len:
806
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
808
return other_history[self_len:stop_revision]
811
def update_revisions(self, other, stop_revision=None):
812
"""Pull in all new revisions from other branch.
814
from bzrlib.fetch import greedy_fetch
816
pb = bzrlib.ui.ui_factory.progress_bar()
817
pb.update('comparing histories')
819
revision_ids = self.missing_revisions(other, stop_revision)
821
if len(revision_ids) > 0:
822
count = greedy_fetch(self, other, revision_ids[-1], pb)[0]
825
self.append_revision(*revision_ids)
826
## note("Added %d revisions." % count)
829
def install_revisions(self, other, revision_ids, pb):
830
if hasattr(other.revision_store, "prefetch"):
831
other.revision_store.prefetch(revision_ids)
832
if hasattr(other.inventory_store, "prefetch"):
833
inventory_ids = [other.get_revision(r).inventory_id
834
for r in revision_ids]
835
other.inventory_store.prefetch(inventory_ids)
838
pb = bzrlib.ui.ui_factory.progress_bar()
845
for i, rev_id in enumerate(revision_ids):
846
pb.update('fetching revision', i+1, len(revision_ids))
848
rev = other.get_revision(rev_id)
849
except bzrlib.errors.NoSuchRevision:
853
revisions.append(rev)
854
inv = other.get_inventory(str(rev.inventory_id))
855
for key, entry in inv.iter_entries():
856
if entry.text_id is None:
858
if entry.text_id not in self.text_store:
859
needed_texts.add(entry.text_id)
863
count, cp_fail = self.text_store.copy_multi(other.text_store,
865
#print "Added %d texts." % count
866
inventory_ids = [ f.inventory_id for f in revisions ]
867
count, cp_fail = self.inventory_store.copy_multi(other.inventory_store,
869
#print "Added %d inventories." % count
870
revision_ids = [ f.revision_id for f in revisions]
872
count, cp_fail = self.revision_store.copy_multi(other.revision_store,
875
assert len(cp_fail) == 0
876
return count, failures
879
def commit(self, *args, **kw):
880
from bzrlib.commit import commit
881
commit(self, *args, **kw)
884
def lookup_revision(self, revision):
885
"""Return the revision identifier for a given revision information."""
886
revno, info = self._get_revision_info(revision)
890
def revision_id_to_revno(self, revision_id):
891
"""Given a revision id, return its revno"""
892
history = self.revision_history()
894
return history.index(revision_id) + 1
896
raise bzrlib.errors.NoSuchRevision(self, revision_id)
899
def get_revision_info(self, revision):
900
"""Return (revno, revision id) for revision identifier.
902
revision can be an integer, in which case it is assumed to be revno (though
903
this will translate negative values into positive ones)
904
revision can also be a string, in which case it is parsed for something like
905
'date:' or 'revid:' etc.
907
revno, rev_id = self._get_revision_info(revision)
909
raise bzrlib.errors.NoSuchRevision(self, revision)
912
def get_rev_id(self, revno, history=None):
913
"""Find the revision id of the specified revno."""
917
history = self.revision_history()
918
elif revno <= 0 or revno > len(history):
919
raise bzrlib.errors.NoSuchRevision(self, revno)
920
return history[revno - 1]
922
def _get_revision_info(self, revision):
923
"""Return (revno, revision id) for revision specifier.
925
revision can be an integer, in which case it is assumed to be revno
926
(though this will translate negative values into positive ones)
927
revision can also be a string, in which case it is parsed for something
928
like 'date:' or 'revid:' etc.
930
A revid is always returned. If it is None, the specifier referred to
931
the null revision. If the revid does not occur in the revision
932
history, revno will be None.
938
try:# Convert to int if possible
939
revision = int(revision)
942
revs = self.revision_history()
943
if isinstance(revision, int):
945
revno = len(revs) + revision + 1
948
rev_id = self.get_rev_id(revno, revs)
949
elif isinstance(revision, basestring):
950
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
951
if revision.startswith(prefix):
952
result = func(self, revs, revision)
954
revno, rev_id = result
957
rev_id = self.get_rev_id(revno, revs)
960
raise BzrError('No namespace registered for string: %r' %
963
raise TypeError('Unhandled revision type %s' % revision)
967
raise bzrlib.errors.NoSuchRevision(self, revision)
970
def _namespace_revno(self, revs, revision):
971
"""Lookup a revision by revision number"""
972
assert revision.startswith('revno:')
974
return (int(revision[6:]),)
977
REVISION_NAMESPACES['revno:'] = _namespace_revno
979
def _namespace_revid(self, revs, revision):
980
assert revision.startswith('revid:')
981
rev_id = revision[len('revid:'):]
983
return revs.index(rev_id) + 1, rev_id
986
REVISION_NAMESPACES['revid:'] = _namespace_revid
988
def _namespace_last(self, revs, revision):
989
assert revision.startswith('last:')
991
offset = int(revision[5:])
996
raise BzrError('You must supply a positive value for --revision last:XXX')
997
return (len(revs) - offset + 1,)
998
REVISION_NAMESPACES['last:'] = _namespace_last
1000
def _namespace_tag(self, revs, revision):
1001
assert revision.startswith('tag:')
1002
raise BzrError('tag: namespace registered, but not implemented.')
1003
REVISION_NAMESPACES['tag:'] = _namespace_tag
1005
def _namespace_date(self, revs, revision):
1006
assert revision.startswith('date:')
1008
# Spec for date revisions:
1010
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
1011
# it can also start with a '+/-/='. '+' says match the first
1012
# entry after the given date. '-' is match the first entry before the date
1013
# '=' is match the first entry after, but still on the given date.
1015
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
1016
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
1017
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
1018
# May 13th, 2005 at 0:00
1020
# So the proper way of saying 'give me all entries for today' is:
1021
# -r {date:+today}:{date:-tomorrow}
1022
# The default is '=' when not supplied
1025
if val[:1] in ('+', '-', '='):
1026
match_style = val[:1]
1029
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
1030
if val.lower() == 'yesterday':
1031
dt = today - datetime.timedelta(days=1)
1032
elif val.lower() == 'today':
1034
elif val.lower() == 'tomorrow':
1035
dt = today + datetime.timedelta(days=1)
1038
# This should be done outside the function to avoid recompiling it.
1039
_date_re = re.compile(
1040
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
1042
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
1044
m = _date_re.match(val)
1045
if not m or (not m.group('date') and not m.group('time')):
1046
raise BzrError('Invalid revision date %r' % revision)
1049
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
1051
year, month, day = today.year, today.month, today.day
1053
hour = int(m.group('hour'))
1054
minute = int(m.group('minute'))
1055
if m.group('second'):
1056
second = int(m.group('second'))
1060
hour, minute, second = 0,0,0
1062
dt = datetime.datetime(year=year, month=month, day=day,
1063
hour=hour, minute=minute, second=second)
1067
if match_style == '-':
1069
elif match_style == '=':
1070
last = dt + datetime.timedelta(days=1)
1073
for i in range(len(revs)-1, -1, -1):
1074
r = self.get_revision(revs[i])
1075
# TODO: Handle timezone.
1076
dt = datetime.datetime.fromtimestamp(r.timestamp)
1077
if first >= dt and (last is None or dt >= last):
1080
for i in range(len(revs)):
1081
r = self.get_revision(revs[i])
1082
# TODO: Handle timezone.
1083
dt = datetime.datetime.fromtimestamp(r.timestamp)
1084
if first <= dt and (last is None or dt <= last):
1086
REVISION_NAMESPACES['date:'] = _namespace_date
1088
def revision_tree(self, revision_id):
1089
"""Return Tree for a revision on this branch.
1091
`revision_id` may be None for the null revision, in which case
1092
an `EmptyTree` is returned."""
1093
# TODO: refactor this to use an existing revision object
1094
# so we don't need to read it in twice.
1095
if revision_id == None:
1098
inv = self.get_revision_inventory(revision_id)
1099
return RevisionTree(self.text_store, inv)
1102
def working_tree(self):
1103
"""Return a `Tree` for the working copy."""
1104
from workingtree import WorkingTree
1105
return WorkingTree(self.base, self.read_working_inventory())
1108
def basis_tree(self):
1109
"""Return `Tree` object for last revision.
1111
If there are no revisions yet, return an `EmptyTree`.
1113
r = self.last_patch()
1117
return RevisionTree(self.text_store, self.get_revision_inventory(r))
1121
def rename_one(self, from_rel, to_rel):
1124
This can change the directory or the filename or both.
1128
tree = self.working_tree()
1129
inv = tree.inventory
1130
if not tree.has_filename(from_rel):
1131
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1132
if tree.has_filename(to_rel):
1133
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1135
file_id = inv.path2id(from_rel)
1137
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1139
if inv.path2id(to_rel):
1140
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1142
to_dir, to_tail = os.path.split(to_rel)
1143
to_dir_id = inv.path2id(to_dir)
1144
if to_dir_id == None and to_dir != '':
1145
raise BzrError("can't determine destination directory id for %r" % to_dir)
1147
mutter("rename_one:")
1148
mutter(" file_id {%s}" % file_id)
1149
mutter(" from_rel %r" % from_rel)
1150
mutter(" to_rel %r" % to_rel)
1151
mutter(" to_dir %r" % to_dir)
1152
mutter(" to_dir_id {%s}" % to_dir_id)
1154
inv.rename(file_id, to_dir_id, to_tail)
1156
print "%s => %s" % (from_rel, to_rel)
1158
from_abs = self.abspath(from_rel)
1159
to_abs = self.abspath(to_rel)
1161
os.rename(from_abs, to_abs)
1163
raise BzrError("failed to rename %r to %r: %s"
1164
% (from_abs, to_abs, e[1]),
1165
["rename rolled back"])
1167
self._write_inventory(inv)
1172
def move(self, from_paths, to_name):
1175
to_name must exist as a versioned directory.
1177
If to_name exists and is a directory, the files are moved into
1178
it, keeping their old names. If it is a directory,
1180
Note that to_name is only the last component of the new name;
1181
this doesn't change the directory.
1185
## TODO: Option to move IDs only
1186
assert not isinstance(from_paths, basestring)
1187
tree = self.working_tree()
1188
inv = tree.inventory
1189
to_abs = self.abspath(to_name)
1190
if not isdir(to_abs):
1191
raise BzrError("destination %r is not a directory" % to_abs)
1192
if not tree.has_filename(to_name):
1193
raise BzrError("destination %r not in working directory" % to_abs)
1194
to_dir_id = inv.path2id(to_name)
1195
if to_dir_id == None and to_name != '':
1196
raise BzrError("destination %r is not a versioned directory" % to_name)
1197
to_dir_ie = inv[to_dir_id]
1198
if to_dir_ie.kind not in ('directory', 'root_directory'):
1199
raise BzrError("destination %r is not a directory" % to_abs)
1201
to_idpath = inv.get_idpath(to_dir_id)
1203
for f in from_paths:
1204
if not tree.has_filename(f):
1205
raise BzrError("%r does not exist in working tree" % f)
1206
f_id = inv.path2id(f)
1208
raise BzrError("%r is not versioned" % f)
1209
name_tail = splitpath(f)[-1]
1210
dest_path = appendpath(to_name, name_tail)
1211
if tree.has_filename(dest_path):
1212
raise BzrError("destination %r already exists" % dest_path)
1213
if f_id in to_idpath:
1214
raise BzrError("can't move %r to a subdirectory of itself" % f)
1216
# OK, so there's a race here, it's possible that someone will
1217
# create a file in this interval and then the rename might be
1218
# left half-done. But we should have caught most problems.
1220
for f in from_paths:
1221
name_tail = splitpath(f)[-1]
1222
dest_path = appendpath(to_name, name_tail)
1223
print "%s => %s" % (f, dest_path)
1224
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1226
os.rename(self.abspath(f), self.abspath(dest_path))
1228
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1229
["rename rolled back"])
1231
self._write_inventory(inv)
1236
def revert(self, filenames, old_tree=None, backups=True):
1237
"""Restore selected files to the versions from a previous tree.
1240
If true (default) backups are made of files before
1243
from bzrlib.errors import NotVersionedError, BzrError
1244
from bzrlib.atomicfile import AtomicFile
1245
from bzrlib.osutils import backup_file
1247
inv = self.read_working_inventory()
1248
if old_tree is None:
1249
old_tree = self.basis_tree()
1250
old_inv = old_tree.inventory
1253
for fn in filenames:
1254
file_id = inv.path2id(fn)
1256
raise NotVersionedError("not a versioned file", fn)
1257
if not old_inv.has_id(file_id):
1258
raise BzrError("file not present in old tree", fn, file_id)
1259
nids.append((fn, file_id))
1261
# TODO: Rename back if it was previously at a different location
1263
# TODO: If given a directory, restore the entire contents from
1264
# the previous version.
1266
# TODO: Make a backup to a temporary file.
1268
# TODO: If the file previously didn't exist, delete it?
1269
for fn, file_id in nids:
1272
f = AtomicFile(fn, 'wb')
1274
f.write(old_tree.get_file(file_id).read())
1280
def pending_merges(self):
1281
"""Return a list of pending merges.
1283
These are revisions that have been merged into the working
1284
directory but not yet committed.
1286
cfn = self.controlfilename('pending-merges')
1287
if not os.path.exists(cfn):
1290
for l in self.controlfile('pending-merges', 'r').readlines():
1291
p.append(l.rstrip('\n'))
1295
def add_pending_merge(self, revision_id):
1296
from bzrlib.revision import validate_revision_id
1298
validate_revision_id(revision_id)
1300
p = self.pending_merges()
1301
if revision_id in p:
1303
p.append(revision_id)
1304
self.set_pending_merges(p)
1307
def set_pending_merges(self, rev_list):
1308
from bzrlib.atomicfile import AtomicFile
1311
f = AtomicFile(self.controlfilename('pending-merges'))
1323
class ScratchBranch(Branch):
1324
"""Special test class: a branch that cleans up after itself.
1326
>>> b = ScratchBranch()
1334
def __init__(self, files=[], dirs=[], base=None):
1335
"""Make a test branch.
1337
This creates a temporary directory and runs init-tree in it.
1339
If any files are listed, they are created in the working copy.
1341
from tempfile import mkdtemp
1346
Branch.__init__(self, base, init=init)
1348
os.mkdir(self.abspath(d))
1351
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1356
>>> orig = ScratchBranch(files=["file1", "file2"])
1357
>>> clone = orig.clone()
1358
>>> os.path.samefile(orig.base, clone.base)
1360
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1363
from shutil import copytree
1364
from tempfile import mkdtemp
1367
copytree(self.base, base, symlinks=True)
1368
return ScratchBranch(base=base)
1374
"""Destroy the test branch, removing the scratch directory."""
1375
from shutil import rmtree
1378
mutter("delete ScratchBranch %s" % self.base)
1381
# Work around for shutil.rmtree failing on Windows when
1382
# readonly files are encountered
1383
mutter("hit exception in destroying ScratchBranch: %s" % e)
1384
for root, dirs, files in os.walk(self.base, topdown=False):
1386
os.chmod(os.path.join(root, name), 0700)
1392
######################################################################
1396
def is_control_file(filename):
1397
## FIXME: better check
1398
filename = os.path.normpath(filename)
1399
while filename != '':
1400
head, tail = os.path.split(filename)
1401
## mutter('check %r for control file' % ((head, tail), ))
1402
if tail == bzrlib.BZRDIR:
1404
if filename == head:
1411
def gen_file_id(name):
1412
"""Return new file id.
1414
This should probably generate proper UUIDs, but for the moment we
1415
cope with just randomness because running uuidgen every time is
1418
from binascii import hexlify
1419
from time import time
1421
# get last component
1422
idx = name.rfind('/')
1424
name = name[idx+1 : ]
1425
idx = name.rfind('\\')
1427
name = name[idx+1 : ]
1429
# make it not a hidden file
1430
name = name.lstrip('.')
1432
# remove any wierd characters; we don't escape them but rather
1433
# just pull them out
1434
name = re.sub(r'[^\w.]', '', name)
1436
s = hexlify(rand_bytes(8))
1437
return '-'.join((name, compact_date(time()), s))
1441
"""Return a new tree-root file id."""
1442
return gen_file_id('TREE_ROOT')
1445
def pull_loc(branch):
1446
# TODO: Should perhaps just make attribute be 'base' in
1447
# RemoteBranch and Branch?
1448
if hasattr(branch, "baseurl"):
1449
return branch.baseurl
1454
def copy_branch(branch_from, to_location, revision=None):
1455
"""Copy branch_from into the existing directory to_location.
1457
If revision is not None, the head of the new branch will be revision.
1459
from bzrlib.merge import merge
1460
from bzrlib.branch import Branch
1461
br_to = Branch(to_location, init=True)
1462
br_to.set_root_id(branch_from.get_root_id())
1463
if revision is None:
1464
revno = branch_from.revno()
1466
revno, rev_id = branch_from.get_revision_info(revision)
1467
br_to.update_revisions(branch_from, stop_revision=revno)
1468
merge((to_location, -1), (to_location, 0), this_dir=to_location,
1469
check_clean=False, ignore_zero=True)
1470
from_location = pull_loc(branch_from)
1471
br_to.controlfile("x-pull", "wb").write(from_location + "\n")