« back to all changes in this revision
Viewing changes to bzrlib/repository.py
- browse files at revision 2220.2.10
- compare with another revision
- compare with revision 6170
- download diff
- download tarball
- view history from revision 2220.2.10
- Committer: Martin Pool
- Date: 2007-02-12 07:18:26 UTC
- mto: (2220.2.19 tags)
- mto: This revision was merged to the branch mainline in revision 2309.
- Revision ID: mbp@sourcefrog.net-20070212071826-5x37ixz8r6cylk75
(broken) start moving things to branches
- files modified:
- bzrlib/branch.py
added
removed
bzrlib/repository.py
72
72
73
73
74
74
######################################################################
75
# tag storage
76
77
78
class _TagStore(object):
79
def __init__(self, repository):
80
self.repository = repository
81
82
class _DisabledTagStore(_TagStore):
83
"""Tag storage that refuses to store anything.
84
85
This is used by older formats that can't store tags.
86
"""
87
88
def _not_supported(self, *a, **k):
89
raise errors.TagsNotSupported(self.repository)
90
91
def supports_tags(self):
92
return False
93
94
set_tag = _not_supported
95
get_tag_dict = _not_supported
96
_set_tag_dict = _not_supported
97
lookup_tag = _not_supported
98
99
100
class _BasicTagStore(_TagStore):
101
"""Tag storage in an unversioned repository control file.
102
"""
103
104
def supports_tags(self):
105
return True
106
107
def set_tag(self, tag_name, tag_target):
108
"""Add a tag definition to the repository.
109
110
Behaviour if the tag is already present is not defined (yet).
111
"""
112
# all done with a write lock held, so this looks atomic
113
self.repository.lock_write()
114
try:
115
td = self.get_tag_dict()
116
td[tag_name] = tag_target
117
self._set_tag_dict(td)
118
finally:
119
self.repository.unlock()
120
121
def lookup_tag(self, tag_name):
122
"""Return the referent string of a tag"""
123
td = self.get_tag_dict()
124
try:
125
return td[tag_name]
126
except KeyError:
127
raise errors.NoSuchTag(tag_name)
128
129
def get_tag_dict(self):
130
self.repository.lock_read()
131
try:
132
tag_content = self.repository.control_files.get_utf8('tags').read()
133
return self._deserialize_tag_dict(tag_content)
134
finally:
135
self.repository.unlock()
136
137
def _set_tag_dict(self, new_dict):
138
"""Replace all tag definitions
139
140
:param new_dict: Dictionary from tag name to target.
141
"""
142
self.repository.lock_read()
143
try:
144
self.repository.control_files.put_utf8('tags',
145
self._serialize_tag_dict(new_dict))
146
finally:
147
self.repository.unlock()
148
149
def _serialize_tag_dict(self, tag_dict):
150
s = []
151
for tag, target in sorted(tag_dict.items()):
152
# TODO: check that tag names and targets are acceptable
153
s.append(tag + '\t' + target + '\n')
154
return ''.join(s)
155
156
def _deserialize_tag_dict(self, tag_content):
157
"""Convert the tag file into a dictionary of tags"""
158
d = {}
159
for l in tag_content.splitlines():
160
tag, target = l.split('\t', 1)
161
d[tag] = target
162
return d
163
164
165
######################################################################
166
75
# Repositories
167
76
168
77
class Repository(object):
177
86
remote) disk.
178
87
"""
179
88
180
# override this to set the strategy for storing tags
181
_tag_store_class = _DisabledTagStore
182
183
89
_file_ids_altered_regex = lazy_regex.lazy_compile(
184
90
r'file_id="(?P<file_id>[^"]+)"'
185
91
r'.*revision="(?P<revision_id>[^"]+)"'
319
225
# on whether escaping is required.
320
226
self._warn_if_deprecated()
321
227
self._serializer = xml5.serializer_v5
322
self._tag_store = self._tag_store_class(self)
323
228
324
229
def __repr__(self):
325
230
return '%s(%r)' % (self.__class__.__name__,
873
778
except UnicodeEncodeError:
874
779
raise errors.NonAsciiRevisionId(method, self)
875
780
876
def set_tag(self, tag_name, tag_target):
877
self._tag_store.set_tag(tag_name, tag_target)
878
879
def lookup_tag(self, tag_name):
880
return self._tag_store.lookup_tag(tag_name)
881
882
def get_tag_dict(self):
883
return self._tag_store.get_tag_dict()
884
885
def _set_tag_dict(self, new_dict):
886
return self._tag_store._set_tag_dict(new_dict)
887
888
def supports_tags(self):
889
return self._tag_store.supports_tags()
890
891
def copy_tags_to(self, to_repository):
892
"""Copy tags to another repository.
893
894
Subclasses should not override this, but rather customize copying
895
through the InterRepository mechanism.
896
"""
897
return InterRepository.get(self, to_repository).copy_tags()
898
899
781
900
782
class AllInOneRepository(Repository):
901
783
"""Legacy support - the repository behaviour for all-in-one branches."""
1213
1095
1214
1096
# corresponds to RepositoryFormatKnit2
1215
1097
1216
# TODO: within a lock scope, we could keep the tags in memory...
1217
1218
_tag_store_class = _BasicTagStore
1219
1220
1098
def __init__(self, _format, a_bzrdir, control_files, _revision_store,
1221
1099
control_store, text_store):
1222
1100
KnitRepository.__init__(self, _format, a_bzrdir, control_files,
1418
1296
assert klass._formats[format.get_format_string()] is format
1419
1297
del klass._formats[format.get_format_string()]
1420
1298
1421
def supports_tags(self):
1422
"""True if this format supports tags stored in the repository"""
1423
return False # by default
1424
1425
1299
1426
1300
class PreSplitOutRepositoryFormat(RepositoryFormat):
1427
1301
"""Base class for the pre split out repository formats."""
1887
1761
- an optional 'no-working-trees' flag
1888
1762
- a LockDir lock
1889
1763
- Support for recording full info about the tree root
1890
- A tag dictionary stored in the repository, pointing to revisions
1891
1764
"""
1892
1765
1893
1766
rich_root_data = True
Loggerhead is a web-based interface for Breezy
Version: 2.0.1