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# Copyright (C) 2004, 2005 by Martin Pool
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# Copyright (C) 2005 by Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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import bzrlib.progress
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from bzrlib.xml import serializer_v4
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from bzrlib.osutils import rename
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Upgrade branch to current format.
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This causes objects to be rewritten into the current format.
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If they change, their SHA-1 will of course change, which might
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break any later signatures, or backreferences that check the
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TODO: Check non-mainline revisions.
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from bzrlib.trace import mutter
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from bzrlib.errors import BzrCheckError
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pb = bzrlib.ui.ui_factory.progress_bar()
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history = branch.revision_history()
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revcount = len(history)
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updated_revisions = []
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# Set to True in the case that the previous revision entry
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# was updated, since this will affect future revision entries
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updated_previous_revision = False
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for rev_id in history:
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pb.update('upgrading revision', revno, revcount)
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rev = branch.get_revision(rev_id)
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if rev.revision_id != rev_id:
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raise BzrCheckError('wrong internal revision id in revision {%s}'
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# if set to true, revision must be written out
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if rev.inventory_sha1 is None:
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rev.inventory_sha1 = branch.get_inventory_sha1(rev.inventory_id)
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mutter(" set inventory_sha1 on {%s}" % rev_id)
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for prr in rev.parents:
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actual_sha1 = branch.get_revision_sha1(prr.revision_id)
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except bzrlib.errors.NoSuchRevision:
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mutter("parent {%s} of {%s} not present in branch; skipped"
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% (prr.revision_id, rev_id))
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if actual_sha1 != prr.revision_sha1:
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mutter("parent {%s} of {%s} sha1 mismatch: "
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% (prr.revision_id, rev_id,
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actual_sha1, prr.revision_sha1))
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prr.revision_sha1 = actual_sha1
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updated_previous_revision = True
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# We had to update this revision entries hashes
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# Now we need to write out a new value
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# This is a little bit invasive, since we are *rewriting* a
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# revision entry. I'm not supremely happy about it, but
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# there should be *some* way of making old entries have
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# the full meta information.
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rev_tmp = tempfile.TemporaryFile()
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serializer_v4.write_revision(rev, rev_tmp)
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tmpfd, tmp_path = tempfile.mkstemp(prefix=rev_id, suffix='.gz',
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dir=branch.controlfilename('revision-store'))
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# TODO: We may need to handle the case where the old revision
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# entry was not compressed (and thus did not end with .gz)
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# Remove the old revision entry out of the way
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rev_path = branch.controlfilename(['revision-store', rev_id+'.gz'])
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rename(rev_path, tmp_path)
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branch.revision_store.add(rev_tmp, rev_id) # Add the new one
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os.remove(tmp_path) # Remove the old name
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mutter(' Updated revision entry {%s}' % rev_id)
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# On any exception, restore the old entry
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rename(tmp_path, rev_path)
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updated_revisions.append(rev_id)
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updated_previous_revision = False
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if updated_revisions:
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print '%d revisions updated to current format' % len(updated_revisions)
added
removed
bzrlib/upgrade.py
