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Viewing changes to bzrlib/switch.py

(jelmer) Merge colocated branch support back into the 2a format. (Jelmer
 Vernooij)

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bzrlib/switch.py
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        source_repository = control_dir.open_branch().repository
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    except errors.NotBranchError:
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        source_repository = to_branch.repository
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    _set_branch_location(control_dir, to_branch, force)
 
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    to_branch.lock_read()
 
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    try:
 
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        _set_branch_location(control_dir, to_branch, force)
 
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    finally:
 
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        to_branch.unlock()
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    tree = control_dir.open_workingtree()
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    _update(tree, source_repository, quiet, revision_id)
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    _run_post_switch_hooks(control_dir, to_branch, force, revision_id)
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        else:
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            # If this is a standalone tree and the new branch
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            # is derived from this one, create a lightweight checkout.
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            graph = b.repository.get_graph(to_branch.repository)
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            if (b.bzrdir._format.colocated_branches and
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                 (force or graph.is_ancestor(b.last_revision(),
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                    to_branch.last_revision()))):
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                b.bzrdir.destroy_branch()
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                b.bzrdir.set_branch_reference(to_branch, name="")
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            else:
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                raise errors.BzrCommandError(gettext('Cannot switch a branch, '
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                    'only a checkout.'))
 
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            b.lock_read()
 
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            try:
 
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                graph = b.repository.get_graph(to_branch.repository)
 
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                if (b.bzrdir._format.colocated_branches and
 
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                     (force or graph.is_ancestor(b.last_revision(),
 
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                        to_branch.last_revision()))):
 
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                    b.bzrdir.destroy_branch()
 
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                    b.bzrdir.set_branch_reference(to_branch, name="")
 
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                else:
 
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                    raise errors.BzrCommandError(gettext('Cannot switch a branch, '
 
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                        'only a checkout.'))
 
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            finally:
 
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                b.unlock()
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def _any_local_commits(this_branch, possible_transports):