view .arcconfig @ 39087:f90b333e79cb

revlog: filter out "invalid" delta base candidates

There are bases that we know won't produce a good delta chain. For example, if
the base is already bigger than twice the size of the text we store, we know
the resulting delta chain will never be valid.

We might make the check a bit more powerful and generic in the future, but
this looks a good start.

In particular, empty file (size 0) will never find a good base, so we should
stop spending time trying to find one.

{
    "conduit_uri": "https://phab.mercurial-scm.org/api",
    "repository.callsign": "HG",
    "arc.land.onto.default": "@",
    "base": "hg:.^"
}