1
# Copyright (C) 2004, 2005 by Martin Pool
2
# Copyright (C) 2005 by Canonical Ltd
4
# This program is free software; you can redistribute it and/or modify
5
# it under the terms of the GNU General Public License as published by
6
# the Free Software Foundation; either version 2 of the License, or
7
# (at your option) any later version.
9
# This program is distributed in the hope that it will be useful,
10
# but WITHOUT ANY WARRANTY; without even the implied warranty of
11
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12
# GNU General Public License for more details.
14
# You should have received a copy of the GNU General Public License
15
# along with this program; if not, write to the Free Software
16
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19
import bzrlib.progress
24
Upgrade branch to current format.
26
This causes objects to be rewritten into the current format.
28
If they change, their SHA-1 will of course change, which might
29
break any later signatures, or backreferences that check the
32
TODO: Check non-mainline revisions.
36
from bzrlib.trace import mutter
37
from bzrlib.errors import BzrCheckError
42
pb = bzrlib.ui.progress_bar()
47
history = branch.revision_history()
49
revcount = len(history)
51
updated_revisions = []
53
# Set to True in the case that the previous revision entry
54
# was updated, since this will affect future revision entries
55
updated_previous_revision = False
57
for rev_id in history:
59
pb.update('upgrading revision', revno, revcount)
60
rev = branch.get_revision(rev_id)
61
if rev.revision_id != rev_id:
62
raise BzrCheckError('wrong internal revision id in revision {%s}'
67
# if set to true, revision must be written out
70
if rev.inventory_sha1 is None:
71
rev.inventory_sha1 = branch.get_inventory_sha1(rev.inventory_id)
73
mutter(" set inventory_sha1 on {%s}" % rev_id)
75
for prr in rev.parents:
77
actual_sha1 = branch.get_revision_sha1(prr.revision_id)
78
except bzrlib.errors.NoSuchRevision:
79
mutter("parent {%s} of {%s} not present in branch; skipped"
80
% (prr.revision_id, rev_id))
83
if actual_sha1 != prr.revision_sha1:
84
mutter("parent {%s} of {%s} sha1 mismatch: "
86
% (prr.revision_id, rev_id,
87
actual_sha1, prr.revision_sha1))
88
prr.revision_sha1 = actual_sha1
92
updated_previous_revision = True
93
# We had to update this revision entries hashes
94
# Now we need to write out a new value
95
# This is a little bit invasive, since we are *rewriting* a
96
# revision entry. I'm not supremely happy about it, but
97
# there should be *some* way of making old entries have
98
# the full meta information.
99
import tempfile, os, errno
100
from bzrlib.xml import pack_xml
102
rev_tmp = tempfile.TemporaryFile()
103
pack_xml(rev, rev_tmp)
106
tmpfd, tmp_path = tempfile.mkstemp(prefix=rev_id, suffix='.gz',
107
dir=branch.controlfilename('revision-store'))
109
def special_rename(p1, p2):
110
if sys.platform == 'win32':
114
if e.errno != errno.ENOENT:
119
# TODO: We may need to handle the case where the old revision
120
# entry was not compressed (and thus did not end with .gz)
122
# Remove the old revision entry out of the way
123
rev_path = branch.controlfilename(['revision-store', rev_id+'.gz'])
124
special_rename(rev_path, tmp_path)
125
branch.revision_store.add(rev_tmp, rev_id) # Add the new one
126
os.remove(tmp_path) # Remove the old name
127
mutter(' Updated revision entry {%s}' % rev_id)
129
# On any exception, restore the old entry
130
special_rename(tmp_path, rev_path)
133
updated_revisions.append(rev_id)
135
updated_previous_revision = False
142
if updated_revisions:
143
print '%d revisions updated to current format' % len(updated_revisions)
added
removed
bzrlib/upgrade.py
