1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
|
# Copyright (C) 2005, 2006, 2008-2011 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
"""bzr upgrade logic."""
from bzrlib import (
errors,
trace,
ui,
)
from bzrlib.bzrdir import (
BzrDir,
format_registry,
)
from bzrlib.remote import RemoteBzrDir
class Convert(object):
def __init__(self, url=None, format=None, control_dir=None):
"""Convert a Bazaar control directory to a given format.
Either the url or control_dir parameter must be given.
:param url: the URL of the control directory or None if the
control_dir is explicitly given instead
:param format: the format to convert to or None for the default
:param control_dir: the control directory or None if it is
specified via the URL parameter instead
"""
self.format = format
# XXX: Change to cleanup
warning_id = 'cross_format_fetch'
saved_warning = warning_id in ui.ui_factory.suppressed_warnings
if url is None and control_dir is None:
raise AssertionError(
"either the url or control_dir parameter must be set.")
if control_dir is not None:
self.bzrdir = control_dir
else:
self.bzrdir = BzrDir.open_unsupported(url)
if isinstance(self.bzrdir, RemoteBzrDir):
self.bzrdir._ensure_real()
self.bzrdir = self.bzrdir._real_bzrdir
if self.bzrdir.root_transport.is_readonly():
raise errors.UpgradeReadonly
self.transport = self.bzrdir.root_transport
ui.ui_factory.suppressed_warnings.add(warning_id)
try:
self.convert()
finally:
if not saved_warning:
ui.ui_factory.suppressed_warnings.remove(warning_id)
def convert(self):
try:
branch = self.bzrdir.open_branch()
if branch.user_url != self.bzrdir.user_url:
ui.ui_factory.note(
'This is a checkout. The branch (%s) needs to be upgraded'
' separately.' % (branch.user_url,))
del branch
except (errors.NotBranchError, errors.IncompatibleRepositories):
# might not be a format we can open without upgrading; see e.g.
# https://bugs.launchpad.net/bzr/+bug/253891
pass
if self.format is None:
try:
rich_root = self.bzrdir.find_repository()._format.rich_root_data
except errors.NoRepositoryPresent:
rich_root = False # assume no rich roots
if rich_root:
format_name = "default-rich-root"
else:
format_name = "default"
format = format_registry.make_bzrdir(format_name)
else:
format = self.format
if not self.bzrdir.needs_format_conversion(format):
raise errors.UpToDateFormat(self.bzrdir._format)
if not self.bzrdir.can_convert_format():
raise errors.BzrError("cannot upgrade from bzrdir format %s" %
self.bzrdir._format)
self.bzrdir.check_conversion_target(format)
ui.ui_factory.note('starting upgrade of %s' % self.transport.base)
self.backup_oldpath, self.backup_newpath = self.bzrdir.backup_bzrdir()
while self.bzrdir.needs_format_conversion(format):
converter = self.bzrdir._format.get_converter(format)
self.bzrdir = converter.convert(self.bzrdir, None)
ui.ui_factory.note('finished')
def clean_up(self):
"""Clean-up after a conversion.
This removes the backup.bzr directory.
"""
transport = self.transport
backup_relpath = transport.relpath(self.backup_newpath)
child_pb = ui.ui_factory.nested_progress_bar()
child_pb.update('Deleting backup.bzr')
try:
transport.delete_tree(backup_relpath)
finally:
child_pb.finished()
def upgrade(url, format=None, clean_up=False, dry_run=False):
"""Upgrade locations to format.
This routine wraps the smart_upgrade() routine with a nicer UI.
In particular, it ensures all URLs can be opened before starting
and reports a summary at the end if more than one upgrade was attempted.
This routine is useful for command line tools. Other bzrlib clients
probably ought to use smart_upgrade() instead.
:param url: a URL of the locations to upgrade.
:param format: the format to convert to or None for the best default
:param clean-up: if True, the backup.bzr directory is removed if the
upgrade succeeded for a given repo/branch/tree
:param dry_run: show what would happen but don't actually do any upgrades
:return: the list of exceptions encountered
"""
control_dirs = [BzrDir.open_unsupported(url)]
attempted, succeeded, exceptions = smart_upgrade(control_dirs,
format, clean_up=clean_up, dry_run=dry_run)
if len(attempted) > 1:
attempted_count = len(attempted)
succeeded_count = len(succeeded)
failed_count = attempted_count - succeeded_count
ui.ui_factory.note(
'\nSUMMARY: %d upgrades attempted, %d succeeded, %d failed'
% (attempted_count, succeeded_count, failed_count))
return exceptions
def smart_upgrade(control_dirs, format, clean_up=False,
dry_run=False):
"""Convert control directories to a new format intelligently.
If the control directory is a shared repository, dependent branches
are also converted provided the repository converted successfully.
If the conversion of a branch fails, remaining branches are still tried.
:param control_dirs: the BzrDirs to upgrade
:param format: the format to convert to or None for the best default
:param clean_up: if True, the backup.bzr directory is removed if the
upgrade succeeded for a given repo/branch/tree
:param dry_run: show what would happen but don't actually do any upgrades
:return: attempted-control-dirs, succeeded-control-dirs, exceptions
"""
all_attempted = []
all_succeeded = []
all_exceptions = []
for control_dir in control_dirs:
attempted, succeeded, exceptions = _smart_upgrade_one(control_dir,
format, clean_up=clean_up, dry_run=dry_run)
all_attempted.extend(attempted)
all_succeeded.extend(succeeded)
all_exceptions.extend(exceptions)
return all_attempted, all_succeeded, all_exceptions
def _smart_upgrade_one(control_dir, format, clean_up=False,
dry_run=False):
"""Convert a control directory to a new format intelligently.
See smart_upgrade for parameter details.
"""
# If the URL is a shared repository, find the dependent branches
dependents = None
try:
repo = control_dir.open_repository()
except errors.NoRepositoryPresent:
# A branch or checkout using a shared repository higher up
pass
else:
# The URL is a repository. If it successfully upgrades,
# then upgrade the dependent branches as well.
if repo.is_shared():
dependents = repo.find_branches(using=True)
# Do the conversions
attempted = [control_dir]
succeeded, exceptions = _convert_items([control_dir], format, clean_up,
dry_run)
if succeeded and dependents:
ui.ui_factory.note('Found %d dependent branches - upgrading ...'
% (len(dependents),))
# Convert dependent branches
branch_cdirs = [b.bzrdir for b in dependents]
successes, problems = _convert_items(branch_cdirs, format, clean_up,
dry_run, label="branch")
attempted.extend(branch_cdirs)
succeeded.extend(successes)
exceptions.extend(problems)
# Return the result
return attempted, succeeded, exceptions
# FIXME: There are several problems below:
# - RemoteRepository doesn't support _unsupported (really ?)
# - raising AssertionError is rude and may not be necessary
# - no tests
# - the only caller uses only the label
def _get_object_and_label(control_dir):
"""Return the primary object and type label for a control directory.
:return: object, label where:
* object is a Branch, Repository or WorkingTree and
* label is one of:
* branch - a branch
* repository - a repository
* tree - a lightweight checkout
"""
try:
try:
br = control_dir.open_branch(unsupported=True,
ignore_fallbacks=True)
except NotImplementedError:
# RemoteRepository doesn't support the unsupported parameter
br = control_dir.open_branch(ignore_fallbacks=True)
except errors.NotBranchError:
pass
else:
return br, "branch"
try:
repo = control_dir.open_repository()
except errors.NoRepositoryPresent:
pass
else:
return repo, "repository"
try:
wt = control_dir.open_workingtree()
except (errors.NoWorkingTree, errors.NotLocalUrl):
pass
else:
return wt, "tree"
raise AssertionError("unknown type of control directory %s", control_dir)
def _convert_items(items, format, clean_up, dry_run, label=None):
"""Convert a sequence of control directories to the given format.
:param items: the control directories to upgrade
:param format: the format to convert to or None for the best default
:param clean-up: if True, the backup.bzr directory is removed if the
upgrade succeeded for a given repo/branch/tree
:param dry_run: show what would happen but don't actually do any upgrades
:param label: the label for these items or None to calculate one
:return: items successfully upgraded, exceptions
"""
succeeded = []
exceptions = []
child_pb = ui.ui_factory.nested_progress_bar()
child_pb.update('Upgrading bzrdirs', 0, len(items))
for i, control_dir in enumerate(items):
# Do the conversion
location = control_dir.root_transport.base
bzr_object, bzr_label = _get_object_and_label(control_dir)
type_label = label or bzr_label
child_pb.update("Upgrading %s" % (type_label), i+1, len(items))
ui.ui_factory.note('Upgrading %s %s ...' % (type_label, location,))
try:
if not dry_run:
cv = Convert(control_dir=control_dir, format=format)
except Exception, ex:
trace.warning('conversion error: %s' % ex)
exceptions.append(ex)
continue
# Do any required post processing
succeeded.append(control_dir)
if clean_up:
try:
ui.ui_factory.note('Removing backup ...')
if not dry_run:
cv.clean_up()
except Exception, ex:
trace.warning('failed to clean-up %s: %s' % (location, ex))
exceptions.append(ex)
child_pb.finished()
# Return the result
return succeeded, exceptions
|