/brz/remove-bazaar

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More work on roundtrip push support.

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revspec.py
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    InvalidRevisionId,
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    InvalidRevisionSpec,
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    )
 
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from bzrlib.revision import (
 
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    NULL_REVISION,
 
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)
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from bzrlib.revisionspec import (
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    RevisionInfo,
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    RevisionSpec,
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def valid_git_sha1(hex):
 
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    """Check if `hex` is a validly formatted Git SHA1.
 
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    :param hex: Hex string to validate
 
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    :return: Boolean
 
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    """
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    import binascii
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    try:
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        binascii.unhexlify(hex)
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        raise InvalidRevisionSpec(self.user_spec, branch)
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    def _history(self, branch, revid):
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        history = list(branch.repository.iter_reverse_revision_history(revid))
 
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        branch.lock_read()
 
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        try:
 
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            history = list(branch.repository.iter_reverse_revision_history(
 
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                revid))
 
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        finally:
 
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            branch.unlock()
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        history.reverse()
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        return history
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    def __nonzero__(self):
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        from bzrlib.revision import (
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            NULL_REVISION,
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            )
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        # The default implementation uses branch.repository.has_revision()
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        if self.rev_id is None:
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            return False
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    def _find_short_git_sha1(self, branch, sha1):
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        from bzrlib.plugins.git.mapping import (
 
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            ForeignGit,
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            mapping_registry,
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            )
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        parse_revid = getattr(branch.repository, "lookup_bzr_revision_id",
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        try:
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            graph = branch.repository.get_graph()
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            for revid, _ in graph.iter_ancestry([branch.last_revision()]):
 
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                if revid == NULL_REVISION:
 
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                    continue
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                try:
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                    foreign_revid, mapping = parse_revid(revid)
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                except InvalidRevisionId:
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                    continue
 
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                if not isinstance(mapping.vcs, ForeignGit):
 
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                    continue
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                if foreign_revid.startswith(sha1):
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                    history = self._history(branch, revid)
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                    return RevisionInfo.from_revision_id(branch, revid, history)