/brz/remove-bazaar

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Merge foreign branch utility code.

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mapping.py
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"""Converters, etc for going between Bazaar and Git ids."""
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NAMESPACE = 'git-experimental'
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_revision_id_prefix = NAMESPACE + '-r:'
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def convert_revision_id_git_to_bzr(git_rev_id):
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    """Convert a git revision id handle to a Bazaar revision id."""
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    return _revision_id_prefix + git_rev_id
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def convert_revision_id_bzr_to_git(bzr_rev_id):
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    """Convert a Bazaar revision id to a git revision id handle."""
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    assert bzr_rev_id.startswith(_revision_id_prefix)
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    return bzr_rev_id[len(_revision_id_prefix):]
 
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class BzrGitMapping(object):
 
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    """Class that maps between Git and Bazaar semantics."""
 
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    experimental = False
 
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    namespace = None
 
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    def convert_revision_id_git_to_bzr(self, git_rev_id):
 
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        """Convert a git revision id handle to a Bazaar revision id."""
 
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        return "%s:%s" % (self.namespace, git_rev_id)
 
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    def convert_revision_id_bzr_to_git(self, bzr_rev_id):
 
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        """Convert a Bazaar revision id to a git revision id handle."""
 
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        assert bzr_rev_id.startswith("%s:" % self.namespace)
 
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        return bzr_rev_id[len(self.namespace)+1:]
 
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class BzrGitMappingExperimental(BzrGitMapping):
 
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    namespace = 'git-experimental'
 
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default_mapping = BzrGitMappingExperimental()