« back to all changes in this revision
Viewing changes to bzrlib/branch.py
- browse files at revision 1185.1.22
- compare with another revision
- compare with revision 1185.2.7
- download diff
- download tarball
- view history from revision 1185.1.22
- Committer: Robert Collins
- Date: 2005-09-15 17:48:08 UTC
- mfrom: (1185.2.19)
- mto: (1185.41.1 bzr.sftp) (1092.3.4) (1417.1.4) (1464.1.1) (1534.1.1 integration) (1495.1.4) (1505.1.16 bzr-bound-branch) (1508.1.15) (1526.1.3 run_tests_twice_for_i18n) (1540.1.3 bzr.dev (Main development branch)) (1685.1.1 bzr-encoding) (1553.5.1 bzr.dev (Main development branch)) (1608.2.1 bzr.mbp.escape-stores) (1393.1.21)
- mto: This revision was merged to the branch mainline in revision 1390.
- Revision ID: robertc@robertcollins.net-20050915174807-7c2e9af156dae948
lalos branch constructor patch
- files added:
- bzrlib/revisionspec.py
- files modified:
- bzrlib/__init__.py
added
removed
bzrlib/branch.py
43
43
# repeatedly to calculate deltas. We could perhaps have a weakref
44
44
# cache in memory to make this faster.
45
45
46
# TODO: please move the revision-string syntax stuff out of the branch
47
# object; it's clutter
48
49
50
def find_branch(f, **args):
51
if f and (f.startswith('http://') or f.startswith('https://')):
52
from bzrlib.remotebranch import RemoteBranch
53
return RemoteBranch(f, **args)
54
else:
55
return Branch(f, **args)
56
57
58
def find_cached_branch(f, cache_root, **args):
59
from bzrlib.remotebranch import RemoteBranch
60
br = find_branch(f, **args)
61
def cacheify(br, store_name):
62
from bzrlib.meta_store import CachedStore
63
cache_path = os.path.join(cache_root, store_name)
64
os.mkdir(cache_path)
65
new_store = CachedStore(getattr(br, store_name), cache_path)
66
setattr(br, store_name, new_store)
67
68
if isinstance(br, RemoteBranch):
69
cacheify(br, 'inventory_store')
70
cacheify(br, 'text_store')
71
cacheify(br, 'revision_store')
72
return br
73
46
def find_branch(*ignored, **ignored_too):
47
# XXX: leave this here for about one release, then remove it
48
raise NotImplementedError('find_branch() is not supported anymore, '
49
'please use one of the new branch constructors')
74
50
75
51
def _relpath(base, path):
76
52
"""Return path relative to base, or raise exception.
140
116
"""Branch holding a history of revisions.
141
117
142
118
base
143
Base directory of the branch.
119
Base directory/url of the branch.
120
"""
121
base = None
122
123
def __init__(self, *ignored, **ignored_too):
124
raise NotImplementedError('The Branch class is abstract')
125
126
@staticmethod
127
def open(base):
128
"""Open an existing branch, rooted at 'base' (url)"""
129
if base and (base.startswith('http://') or base.startswith('https://')):
130
from bzrlib.remotebranch import RemoteBranch
131
return RemoteBranch(base, find_root=False)
132
else:
133
return LocalBranch(base, find_root=False)
134
135
@staticmethod
136
def open_containing(url):
137
"""Open an existing branch, containing url (search upwards for the root)
138
"""
139
if url and (url.startswith('http://') or url.startswith('https://')):
140
from bzrlib.remotebranch import RemoteBranch
141
return RemoteBranch(url)
142
else:
143
return LocalBranch(url)
144
145
@staticmethod
146
def initialize(base):
147
"""Create a new branch, rooted at 'base' (url)"""
148
if base and (base.startswith('http://') or base.startswith('https://')):
149
from bzrlib.remotebranch import RemoteBranch
150
return RemoteBranch(base, init=True)
151
else:
152
return LocalBranch(base, init=True)
153
154
def setup_caching(self, cache_root):
155
"""Subclasses that care about caching should override this, and set
156
up cached stores located under cache_root.
157
"""
158
159
160
class LocalBranch(Branch):
161
"""A branch stored in the actual filesystem.
162
163
Note that it's "local" in the context of the filesystem; it doesn't
164
really matter if it's on an nfs/smb/afs/coda/... share, as long as
165
it's writable, and can be accessed via the normal filesystem API.
144
166
145
167
_lock_mode
146
168
None, or 'r' or 'w'
152
174
_lock
153
175
Lock object from bzrlib.lock.
154
176
"""
155
base = None
177
# We actually expect this class to be somewhat short-lived; part of its
178
# purpose is to try to isolate what bits of the branch logic are tied to
179
# filesystem access, so that in a later step, we can extricate them to
180
# a separarte ("storage") class.
156
181
_lock_mode = None
157
182
_lock_count = None
158
183
_lock = None
159
160
# Map some sort of prefix into a namespace
161
# stuff like "revno:10", "revid:", etc.
162
# This should match a prefix with a function which accepts
163
REVISION_NAMESPACES = {}
164
184
165
185
def __init__(self, base, init=False, find_root=True):
166
186
"""Create new branch object at a particular location.
463
483
"""Print `file` to stdout."""
464
484
self.lock_read()
465
485
try:
466
tree = self.revision_tree(self.lookup_revision(revno))
486
tree = self.revision_tree(self.get_rev_id(revno))
467
487
# use inventory as it was in that revision
468
488
file_id = tree.inventory.path2id(file)
469
489
if not file_id:
804
824
if stop_revision is None:
805
825
other_revision = other.last_patch()
806
826
else:
807
other_revision = other.lookup_revision(stop_revision)
827
other_revision = other.get_rev_id(stop_revision)
808
828
count = greedy_fetch(self, other, other_revision, pb)[0]
809
829
try:
810
830
revision_ids = self.missing_revisions(other, stop_revision)
879
899
commit(self, *args, **kw)
880
900
881
901
882
def lookup_revision(self, revision):
883
"""Return the revision identifier for a given revision information."""
884
revno, info = self._get_revision_info(revision)
885
return info
886
887
888
902
def revision_id_to_revno(self, revision_id):
889
903
"""Given a revision id, return its revno"""
890
904
history = self.revision_history()
894
908
raise bzrlib.errors.NoSuchRevision(self, revision_id)
895
909
896
910
897
def get_revision_info(self, revision):
898
"""Return (revno, revision id) for revision identifier.
899
900
revision can be an integer, in which case it is assumed to be revno (though
901
this will translate negative values into positive ones)
902
revision can also be a string, in which case it is parsed for something like
903
'date:' or 'revid:' etc.
904
"""
905
revno, rev_id = self._get_revision_info(revision)
906
if revno is None:
907
raise bzrlib.errors.NoSuchRevision(self, revision)
908
return revno, rev_id
909
910
911
def get_rev_id(self, revno, history=None):
911
912
"""Find the revision id of the specified revno."""
912
913
if revno == 0:
917
918
raise bzrlib.errors.NoSuchRevision(self, revno)
918
919
return history[revno - 1]
919
920
920
def _get_revision_info(self, revision):
921
"""Return (revno, revision id) for revision specifier.
922
923
revision can be an integer, in which case it is assumed to be revno
924
(though this will translate negative values into positive ones)
925
revision can also be a string, in which case it is parsed for something
926
like 'date:' or 'revid:' etc.
927
928
A revid is always returned. If it is None, the specifier referred to
929
the null revision. If the revid does not occur in the revision
930
history, revno will be None.
931
"""
932
933
if revision is None:
934
return 0, None
935
revno = None
936
try:# Convert to int if possible
937
revision = int(revision)
938
except ValueError:
939
pass
940
revs = self.revision_history()
941
if isinstance(revision, int):
942
if revision < 0:
943
revno = len(revs) + revision + 1
944
else:
945
revno = revision
946
rev_id = self.get_rev_id(revno, revs)
947
elif isinstance(revision, basestring):
948
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
949
if revision.startswith(prefix):
950
result = func(self, revs, revision)
951
if len(result) > 1:
952
revno, rev_id = result
953
else:
954
revno = result[0]
955
rev_id = self.get_rev_id(revno, revs)
956
break
957
else:
958
raise BzrError('No namespace registered for string: %r' %
959
revision)
960
else:
961
raise TypeError('Unhandled revision type %s' % revision)
962
963
if revno is None:
964
if rev_id is None:
965
raise bzrlib.errors.NoSuchRevision(self, revision)
966
return revno, rev_id
967
968
def _namespace_revno(self, revs, revision):
969
"""Lookup a revision by revision number"""
970
assert revision.startswith('revno:')
971
try:
972
return (int(revision[6:]),)
973
except ValueError:
974
return None
975
REVISION_NAMESPACES['revno:'] = _namespace_revno
976
977
def _namespace_revid(self, revs, revision):
978
assert revision.startswith('revid:')
979
rev_id = revision[len('revid:'):]
980
try:
981
return revs.index(rev_id) + 1, rev_id
982
except ValueError:
983
return None, rev_id
984
REVISION_NAMESPACES['revid:'] = _namespace_revid
985
986
def _namespace_last(self, revs, revision):
987
assert revision.startswith('last:')
988
try:
989
offset = int(revision[5:])
990
except ValueError:
991
return (None,)
992
else:
993
if offset <= 0:
994
raise BzrError('You must supply a positive value for --revision last:XXX')
995
return (len(revs) - offset + 1,)
996
REVISION_NAMESPACES['last:'] = _namespace_last
997
998
def _namespace_tag(self, revs, revision):
999
assert revision.startswith('tag:')
1000
raise BzrError('tag: namespace registered, but not implemented.')
1001
REVISION_NAMESPACES['tag:'] = _namespace_tag
1002
1003
def _namespace_date(self, revs, revision):
1004
assert revision.startswith('date:')
1005
import datetime
1006
# Spec for date revisions:
1007
# date:value
1008
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
1009
# it can also start with a '+/-/='. '+' says match the first
1010
# entry after the given date. '-' is match the first entry before the date
1011
# '=' is match the first entry after, but still on the given date.
1012
#
1013
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
1014
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
1015
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
1016
# May 13th, 2005 at 0:00
1017
#
1018
# So the proper way of saying 'give me all entries for today' is:
1019
# -r {date:+today}:{date:-tomorrow}
1020
# The default is '=' when not supplied
1021
val = revision[5:]
1022
match_style = '='
1023
if val[:1] in ('+', '-', '='):
1024
match_style = val[:1]
1025
val = val[1:]
1026
1027
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
1028
if val.lower() == 'yesterday':
1029
dt = today - datetime.timedelta(days=1)
1030
elif val.lower() == 'today':
1031
dt = today
1032
elif val.lower() == 'tomorrow':
1033
dt = today + datetime.timedelta(days=1)
1034
else:
1035
import re
1036
# This should be done outside the function to avoid recompiling it.
1037
_date_re = re.compile(
1038
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
1039
r'(,|T)?\s*'
1040
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
1041
)
1042
m = _date_re.match(val)
1043
if not m or (not m.group('date') and not m.group('time')):
1044
raise BzrError('Invalid revision date %r' % revision)
1045
1046
if m.group('date'):
1047
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
1048
else:
1049
year, month, day = today.year, today.month, today.day
1050
if m.group('time'):
1051
hour = int(m.group('hour'))
1052
minute = int(m.group('minute'))
1053
if m.group('second'):
1054
second = int(m.group('second'))
1055
else:
1056
second = 0
1057
else:
1058
hour, minute, second = 0,0,0
1059
1060
dt = datetime.datetime(year=year, month=month, day=day,
1061
hour=hour, minute=minute, second=second)
1062
first = dt
1063
last = None
1064
reversed = False
1065
if match_style == '-':
1066
reversed = True
1067
elif match_style == '=':
1068
last = dt + datetime.timedelta(days=1)
1069
1070
if reversed:
1071
for i in range(len(revs)-1, -1, -1):
1072
r = self.get_revision(revs[i])
1073
# TODO: Handle timezone.
1074
dt = datetime.datetime.fromtimestamp(r.timestamp)
1075
if first >= dt and (last is None or dt >= last):
1076
return (i+1,)
1077
else:
1078
for i in range(len(revs)):
1079
r = self.get_revision(revs[i])
1080
# TODO: Handle timezone.
1081
dt = datetime.datetime.fromtimestamp(r.timestamp)
1082
if first <= dt and (last is None or dt <= last):
1083
return (i+1,)
1084
REVISION_NAMESPACES['date:'] = _namespace_date
1085
1086
1087
def _namespace_ancestor(self, revs, revision):
1088
from revision import common_ancestor, MultipleRevisionSources
1089
other_branch = find_branch(_trim_namespace('ancestor', revision))
1090
revision_a = self.last_patch()
1091
revision_b = other_branch.last_patch()
1092
for r, b in ((revision_a, self), (revision_b, other_branch)):
1093
if r is None:
1094
raise bzrlib.errors.NoCommits(b)
1095
revision_source = MultipleRevisionSources(self, other_branch)
1096
result = common_ancestor(revision_a, revision_b, revision_source)
1097
try:
1098
revno = self.revision_id_to_revno(result)
1099
except bzrlib.errors.NoSuchRevision:
1100
revno = None
1101
return revno,result
1102
1103
1104
REVISION_NAMESPACES['ancestor:'] = _namespace_ancestor
1105
921
1106
922
def revision_tree(self, revision_id):
1107
923
"""Return Tree for a revision on this branch.
1390
1206
raise InvalidRevisionNumber(revno)
1391
1207
1392
1208
1393
1394
1395
class ScratchBranch(Branch):
1209
1210
1211
1212
class ScratchBranch(LocalBranch):
1396
1213
"""Special test class: a branch that cleans up after itself.
1397
1214
1398
1215
>>> b = ScratchBranch()
1415
1232
if base is None:
1416
1233
base = mkdtemp()
1417
1234
init = True
1418
Branch.__init__(self, base, init=init)
1235
LocalBranch.__init__(self, base, init=init)
1419
1236
for d in dirs:
1420
1237
os.mkdir(self.abspath(d))
1421
1238
1527
1344
The name of a local directory that exists but is empty.
1528
1345
"""
1529
1346
from bzrlib.merge import merge
1347
from bzrlib.revisionspec import RevisionSpec
1530
1348
1531
1349
assert isinstance(branch_from, Branch)
1532
1350
assert isinstance(to_location, basestring)
1533
1351
1534
br_to = Branch(to_location, init=True)
1352
br_to = Branch.initialize(to_location)
1535
1353
br_to.set_root_id(branch_from.get_root_id())
1536
1354
if revision is None:
1537
1355
revno = branch_from.revno()
1538
1356
else:
1539
revno, rev_id = branch_from.get_revision_info(revision)
1357
revno, rev_id = RevisionSpec(revision).in_history(branch_from)
1540
1358
br_to.update_revisions(branch_from, stop_revision=revno)
1541
1359
merge((to_location, -1), (to_location, 0), this_dir=to_location,
1542
1360
check_clean=False, ignore_zero=True)
1543
1361
br_to.set_parent(branch_from.base)
1544
1362
return br_to
1545
1546
def _trim_namespace(namespace, spec):
1547
full_namespace = namespace + ':'
1548
assert spec.startswith(full_namespace)
1549
return spec[len(full_namespace):]
Loggerhead is a web-based interface for Breezy
Version: 2.0.1