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Viewing changes to bzrlib/reconfigure.py

  • Committer: Aaron Bentley
  • Date: 2007-09-08 06:02:59 UTC
  • mto: This revision was merged to the branch mainline in revision 2826.
  • Revision ID: aaron.bentley@utoronto.ca-20070908060259-e1bzvj22gu66qk22
Begin work on reconfigure command

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bzrlib/reconfigure.py
 
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# Copyright (C) 2007 Canonical Ltd
 
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#
 
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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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#
 
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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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#
 
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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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"""Reconfigure a bzrdir into a new tree/branch/repository layout"""
 
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from bzrlib import (
 
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    errors,
 
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    )
 
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class Reconfigure(object):
 
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    def __init__(self, bzrdir, tree, branch, unbind):
 
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        self.bzrdir = bzrdir
 
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        self.tree = tree
 
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        self.branch = branch
 
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        self.unbind = unbind
 
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    @staticmethod
 
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    def to_branch(bzrdir):
 
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        try:
 
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            branch = bzrdir.open_branch()
 
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        except errors.NotBranchError:
 
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            raise errors.ReconfigurationNotSupported(bzrdir)
 
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        unbind = (branch.get_bound_location() is not None)
 
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        try:
 
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            tree = bzrdir.open_workingtree()
 
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        except errors.NoWorkingTree:
 
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            raise errors.AlreadyBranch(bzrdir)
 
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        return Reconfigure(bzrdir, tree, branch, unbind)
 
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    def _check(self):
 
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        changes = self.tree.changes_from(self.tree.basis_tree())
 
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        if changes.has_changed():
 
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            raise errors.UncommittedChanges(self.tree)
 
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    def apply(self, force=False):
 
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        if not force:
 
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            self._check()
 
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        self.bzrdir.destroy_workingtree()
 
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        if self.unbind:
 
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            self.branch.unbind()