/brz/remove-bazaar

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Add FOSDEM roundtripping notes.

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branch.py
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from bzrlib import (
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    branch,
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    config,
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    repository,
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    revision,
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    tag,
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    )
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        result.set_parent(self.bzrdir.root_transport.base)
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        return result
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class InterGitGenericBranch(branch.InterBranch):
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    @classmethod
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    def is_compatible(self, source, target):
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        return isinstance(source, GitBranch)
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    def update_revisions(self, stop_revision=None, overwrite=False,
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        graph=None):
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        """See InterBranch.update_revisions()."""
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        # TODO: stop_revision, overwrite
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        interrepo = repository.InterRepository.get(self.source.repository, self.target.repository)
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        self._last_revid = None
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        def determine_wants(heads):
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            if not self.source.name in heads:
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                raise BzrError("No such remote branch '%s', found: %r" % (
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                    self.source.name, heads.keys()))
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            head = heads[self.source.name]
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            self._last_revid = self.source.mapping.revision_id_foreign_to_bzr(head)
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            if self.target.repository.has_revision(self._last_revid):
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                return []
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            return [head]
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        interrepo.fetch_objects(determine_wants, self.source.mapping)
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        self.target.set_last_revision(last_revid)
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branch.InterBranch.register_optimiser(InterGitGenericBranch)