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# Copyright (C) 2007 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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"""Utility for create branches with particular contents."""
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from bzrlib import bzrdir, errors, memorytree
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class BranchBuilder(object):
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"""A BranchBuilder aids creating Branches with particular shapes.
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The expected way to use BranchBuilder is to construct a
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BranchBuilder on the transport you want your branch on, and then call
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appropriate build_ methods on it to get the shape of history you want.
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builder = BranchBuilder(self.get_transport().clone('relpath'))
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builder.build_commit()
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builder.build_commit()
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builder.build_commit()
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branch = builder.get_branch()
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def __init__(self, transport, format=None):
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"""Construct a BranchBuilder on transport.
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:param transport: The transport the branch should be created on.
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If the path of the transport does not exist but its parent does
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:param format: The name of a format in the bzrdir format registry
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for the branch to be built.
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if not transport.has('.'):
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self._branch = bzrdir.BzrDir.create_branch_convenience(transport.base,
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format=bzrdir.format_registry.make_bzrdir(format))
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def build_commit(self):
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"""Build a commit on the branch."""
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tree = memorytree.MemoryTree.create_on_branch(self._branch)
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return tree.commit('commit %d' % (self._branch.revno() + 1))
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"""Return the branch created by the builder."""