mercurial/__main__.py

rust-index: return an error on a bad index header

This is more idiomatic and allows us to better handle the problem later.

from __future__ import annotations


def run():
    from . import demandimport

    with demandimport.tracing.log('hg script'):
        demandimport.enable()
        from . import dispatch

        dispatch.run()


if __name__ == '__main__':
    run()