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bzrlib/commands.py
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from bzrlib.symbol_versioning import (
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    deprecated_function,
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    deprecated_method,
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    zero_eight,
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    zero_eleven,
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    )
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# Compatibility
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from bzrlib.option import Option
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            return None
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# Technically, this function hasn't been use in a *really* long time
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# but we are only deprecating it now.
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@deprecated_function(zero_eleven)
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def parse_spec(spec):
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    """
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    >>> parse_spec(None)
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    [None, None]
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    >>> parse_spec("./")
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    ['./', None]
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    >>> parse_spec("../@")
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    ['..', -1]
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    >>> parse_spec("../f/@35")
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    ['../f', 35]
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    >>> parse_spec('./@revid:john@arbash-meinel.com-20050711044610-3ca0327c6a222f67')
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    ['.', 'revid:john@arbash-meinel.com-20050711044610-3ca0327c6a222f67']
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    """
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    if spec is None:
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        return [None, None]
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    if '/@' in spec:
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        parsed = spec.split('/@')
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        assert len(parsed) == 2
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        if parsed[1] == "":
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            parsed[1] = -1
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        else:
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            try:
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                parsed[1] = int(parsed[1])
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            except ValueError:
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                pass # We can allow stuff like ./@revid:blahblahblah
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            else:
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                assert parsed[1] >=0
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    else:
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        parsed = [spec, None]
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    return parsed
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def parse_args(command, argv, alias_argv=None):
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    """Parse command line.
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