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Viewing changes to bzrlib/reconfigure.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2010-03-11 13:47:06 UTC
  • mfrom: (5051.3.16 use-branch-open)
  • Revision ID: pqm@pqm.ubuntu.com-20100311134706-kaerqhx3lf7xn6rh
(Jelmer) Pass colocated branch names further down the call stack.

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bzrlib/reconfigure.py
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# Copyright (C) 2007 Canonical Ltd
 
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# Copyright (C) 2007, 2009 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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#
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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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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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"""Reconfigure a bzrdir into a new tree/branch/repository layout.
 
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Various types of reconfiguration operation are available either by
 
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constructing a class or using a factory method on Reconfigure.
 
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"""
 
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from bzrlib import (
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    branch,
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    bzrdir,
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    errors,
 
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    trace,
 
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    ui,
 
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    urlutils,
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    )
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# TODO: common base class for all reconfigure operations, making no
 
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# assumptions about what kind of change will be done.
 
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class ReconfigureStackedOn(object):
 
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    """Reconfigures a branch to be stacked on another branch."""
 
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    def apply(self, bzrdir, stacked_on_url):
 
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        branch = bzrdir.open_branch()
 
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        # it may be a path relative to the cwd or a url; the branch wants
 
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        # a path relative to itself...
 
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        on_url = urlutils.relative_url(branch.base,
 
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            urlutils.normalize_url(stacked_on_url))
 
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        branch.lock_write()
 
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        try:
 
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            branch.set_stacked_on_url(on_url)
 
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            if not trace.is_quiet():
 
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                ui.ui_factory.note(
 
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                    "%s is now stacked on %s\n"
 
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                    % (branch.base, branch.get_stacked_on_url()))
 
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        finally:
 
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            branch.unlock()
 
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class ReconfigureUnstacked(object):
 
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    def apply(self, bzrdir):
 
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        branch = bzrdir.open_branch()
 
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        branch.lock_write()
 
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        try:
 
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            branch.set_stacked_on_url(None)
 
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            if not trace.is_quiet():
 
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                ui.ui_factory.note(
 
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                    "%s is now not stacked\n"
 
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                    % (branch.base,))
 
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        finally:
 
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            branch.unlock()
 
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class Reconfigure(object):
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    def __init__(self, bzrdir, new_bound_location=None):
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        self.bzrdir = bzrdir
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        self.new_bound_location = new_bound_location
 
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        self.local_repository = None
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        try:
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            self.repository = self.bzrdir.find_repository()
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        except errors.NoRepositoryPresent:
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            self.repository = None
 
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            self.local_repository = None
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        else:
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            if (self.repository.bzrdir.root_transport.base ==
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                self.bzrdir.root_transport.base):
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        self._create_tree = False
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        self._create_repository = False
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        self._destroy_repository = False
 
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        self._repository_trees = None
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    @staticmethod
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    def to_branch(bzrdir):
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            raise errors.AlreadyStandalone(bzrdir)
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        return reconfiguration
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    @classmethod
 
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    def set_repository_trees(klass, bzrdir, with_trees):
 
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        """Adjust a repository's working tree presence default"""
 
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        reconfiguration = klass(bzrdir)
 
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        if not reconfiguration.repository.is_shared():
 
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            raise errors.ReconfigurationNotSupported(reconfiguration.bzrdir)
 
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        if with_trees and reconfiguration.repository.make_working_trees():
 
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            raise errors.AlreadyWithTrees(bzrdir)
 
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        elif (not with_trees
 
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              and not reconfiguration.repository.make_working_trees()):
 
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            raise errors.AlreadyWithNoTrees(bzrdir)
 
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        else:
 
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            reconfiguration._repository_trees = with_trees
 
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        return reconfiguration
 
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    def _plan_changes(self, want_tree, want_branch, want_bound,
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                      want_reference):
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        """Determine which changes are needed to assume the configuration"""
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    def _check(self):
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        """Raise if reconfiguration would destroy local changes"""
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        if self._destroy_tree:
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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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        if self._destroy_tree and self.tree.has_changes():
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                raise errors.UncommittedChanges(self.tree)
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        if self._create_reference and self.local_branch is not None:
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            reference_branch = branch.Branch.open(self._select_bind_location())
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        if not force:
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            self._check()
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        if self._create_repository:
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            repo = self.bzrdir.create_repository()
 
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            if self.local_branch and not self._destroy_branch:
 
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                old_repo = self.local_branch.repository
 
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            elif self._create_branch and self.referenced_branch is not None:
 
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                old_repo = self.referenced_branch.repository
 
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            else:
 
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                old_repo = None
 
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            if old_repo is not None:
 
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                repository_format = old_repo._format
 
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            else:
 
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                repository_format = None
 
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            if repository_format is not None:
 
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                repo = repository_format.initialize(self.bzrdir)
 
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            else:
 
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                repo = self.bzrdir.create_repository()
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            if self.local_branch and not self._destroy_branch:
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                repo.fetch(self.local_branch.repository,
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                           self.local_branch.last_revision())
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                local_branch.set_last_revision_info(*last_revision_info)
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            if self._destroy_reference:
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                self.referenced_branch.tags.merge_to(local_branch.tags)
 
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                self.referenced_branch.update_references(local_branch)
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        else:
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            local_branch = self.local_branch
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        if self._create_reference:
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            format = branch.BranchReferenceFormat().initialize(self.bzrdir,
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                reference_branch)
 
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                target_branch=reference_branch)
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        if self._destroy_tree:
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            self.bzrdir.destroy_workingtree()
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        if self._create_tree:
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            local_branch.bind(branch.Branch.open(bind_location))
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        if self._destroy_repository:
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            self.bzrdir.destroy_repository()
 
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        if self._repository_trees is not None:
 
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            repo.set_make_working_trees(self._repository_trees)