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Viewing changes to bzrlib/reconfigure.py

  • Committer: Aaron Bentley
  • Date: 2007-11-27 19:37:36 UTC
  • mto: This revision was merged to the branch mainline in revision 3052.
  • Revision ID: abentley@panoramicfeedback.com-20071127193736-fjqqz482w0a6400o
Support reconfigure --lightweight-checkout

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Lines of Context:
bzrlib/reconfigure.py
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        self._unbind = False
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        self._bind = False
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        self._destroy_reference = False
 
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        self._create_reference = False
 
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        self._destroy_branch = False
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        self._create_branch = False
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        self._destroy_tree = False
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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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    @staticmethod
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    def to_branch(bzrdir):
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        """
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        reconfiguration = Reconfigure(bzrdir)
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        reconfiguration._plan_changes(want_tree=False, want_branch=True,
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                                      want_bound=False)
 
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                                      want_bound=False, want_reference=False)
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        if not reconfiguration.changes_planned():
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            raise errors.AlreadyBranch(bzrdir)
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        return reconfiguration
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        """
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        reconfiguration = Reconfigure(bzrdir)
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        reconfiguration._plan_changes(want_tree=True, want_branch=True,
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                                      want_bound=False)
 
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                                      want_bound=False, want_reference=False)
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        if not reconfiguration.changes_planned():
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            raise errors.AlreadyTree(bzrdir)
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        return reconfiguration
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        """
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        reconfiguration = Reconfigure(bzrdir, bound_location)
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        reconfiguration._plan_changes(want_tree=True, want_branch=True,
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                                      want_bound=True)
 
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                                      want_bound=True, want_reference=False)
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        if not reconfiguration.changes_planned():
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            raise errors.AlreadyCheckout(bzrdir)
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        return reconfiguration
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    def _plan_changes(self, want_tree, want_branch, want_bound):
 
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    @classmethod
 
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    def to_lightweight_checkout(klass, bzrdir, reference_location=None):
 
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        """Make a Reconfiguration to convert bzrdir into a lightweight checkout
 
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        :param bzrdir: The bzrdir to reconfigure
 
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        :param bound_location: The location the checkout should be bound to.
 
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        :raise errors.AlreadyLightweightCheckout: if bzrdir is already a
 
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            lightweight checkout
 
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        :raise errors.ReconfigurationNotSupported: if bzrdir does not contain
 
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            a branch or branch reference
 
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        """
 
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        reconfiguration = klass(bzrdir, reference_location)
 
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        reconfiguration._plan_changes(want_tree=True, want_branch=False,
 
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                                      want_bound=False, want_reference=True)
 
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        if not reconfiguration.changes_planned():
 
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            raise errors.AlreadyLightweightCheckout(bzrdir)
 
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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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        if not want_branch and not want_reference:
 
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            raise errors.ReconfigurationNotSupported(self.bzrdir)
 
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        if want_branch and want_reference:
 
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            raise errors.ReconfigurationNotSupported(self.bzrdir)
 
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        if (want_branch or want_reference) and (self.local_branch is None and
 
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                                                self.referenced_branch
 
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                                                is None):
 
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            raise errors.ReconfigurationNotSupported(self.bzrdir)
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        if self.repository is None:
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            self._create_repository = True
 
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            if not want_reference:
 
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                self._create_repository = True
 
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        else:
 
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            if want_reference and (self.repository.bzrdir.root_transport.base
 
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                                   == self.bzrdir.root_transport.base):
 
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                self._destroy_repository = True
 
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        if self.referenced_branch is None:
 
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            if want_reference:
 
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                self._create_reference = True
 
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        else:
 
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            if not want_reference:
 
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                self._destroy_reference = True
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        if self.local_branch is None:
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            if want_branch is True:
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                if self.referenced_branch is not None:
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                    self._destroy_reference = True
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                    self._create_branch = True
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                    if want_bound:
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                        self._bind = True
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                else:
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                    raise errors.ReconfigurationNotSupported(self.bzrdir)
 
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                self._create_branch = True
 
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                if want_bound:
 
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                    self._bind = True
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        else:
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            if want_bound:
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                if self.local_branch.get_bound_location() is None:
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                raise errors.UncommittedChanges(self.tree)
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    def _select_bind_location(self):
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        """Select a location to bind to.
 
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        """Select a location to bind or create a reference to.
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        Preference is:
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        1. user specified location
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        2. branch reference location (it's a kind of bind location)
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        3. previous bind location (it was a good choice once)
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        4. push location (it's writeable, so committable)
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        5. parent location (it's pullable, so update-from-able)
 
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        3. current bind location
 
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        4. previous bind location (it was a good choice once)
 
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        5. push location (it's writeable, so committable)
 
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        6. parent location (it's pullable, so update-from-able)
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        """
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        if self.new_bound_location is not None:
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            return self.new_bound_location
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        if self.local_branch is not None:
 
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            bound = self.local_branch.get_bound_location()
 
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            if bound is not None:
 
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                return bound
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            old_bound = self.local_branch.get_old_bound_location()
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            if old_bound is not None:
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                return old_bound
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        if self._destroy_reference:
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            reference_info = self.referenced_branch.last_revision_info()
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            self.bzrdir.destroy_branch()
 
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        if self._destroy_branch:
 
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            reference_info = self.local_branch.last_revision_info()
 
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            self.bzrdir.destroy_branch()
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        if self._create_branch:
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            local_branch = self.bzrdir.create_branch()
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            local_branch.set_last_revision_info(*reference_info)
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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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            reference_branch = branch.Branch.open(self._select_bind_location())
 
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            format = branch.BranchReferenceFormat().initialize(self.bzrdir,
 
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                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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        if self._bind:
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            bind_location = self._select_bind_location()
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            local_branch.bind(branch.Branch.open(bind_location))
 
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        if self._destroy_repository:
 
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            if self._create_reference:
 
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                reference_branch.repository.fetch(self.repository)
 
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            self.bzrdir.destroy_repository()