From: Thomas Rast <tr@thomasrast.ch>
Date: Sun, 19 Jan 2014 17:06:16 GMT
Subject: Re: [PATCH/WIP v2 02/14] read-cache: new extension to mark what file is watched
Message-ID: <87fvojewaf.fsf@thomasrast.ch>
In-Reply-To: <1389952060-12297-3-git-send-email-pclouds@gmail.com>

Nguyễn Thái Ngọc Duy <pclouds@gmail.com> writes:

> If an entry is "watched", git lets an external program decide if the
> entry is modified or not. It's more like --assume-unchanged, but
> designed to be controlled by machine.
>
> We are running out of on-disk ce_flags, so instead of extending
> on-disk entry format again, "watched" flags are in-core only and
> stored as extension instead.

I wonder if this would be a good use-case for EWAH bitmaps?  Presumably
most users would end up having only a few large ranges of files that are
being watched.  Quite possibly most users would watch *all* files.

-- 
Thomas Rast
tr@thomasrast.ch