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  • Pulkit Goyal's avatar
    upgrade: implement partial upgrade for upgrading persistent-nodemap · 78c2413c80c8
    Pulkit Goyal authored
    Upgrading repositories to use persistent nodemap should be fast and easy as it
    requires only two things:
    
    1) Updating the requirements
    2) Writing a persistent-nodemap on disk
    
    For both of the steps above, we don't need to edit existing revlogs.
    
    This patch makes upgrade only do the above mentioned two steps if we are
    only upgarding to use persistent-nodemap feature.
    
    Since `nodemap.persist_nodemap()` assumes that there exists a nodemap file for
    the given revlog if we are trying to call it, this patch adds `force` argument
    to create a file if does not exist which is true in our upgrade case.
    
    The test changes demonstrate that we no longer write nodemap files for manifest
    after upgrade which I think is desirable.
    78c2413c80c8