Re: [PATCH 1/3 v2] Add --blob-filter option to filter-branch.

On Wed, Apr 23, 2008 at 06:07:03PM -0400, Avery Pennarun wrote:

I think it would be fine to index into the cache using $path$sha1,
which would seem to resolve this issue.  The catch is that $path isn't
a very good cachefile name.  I'd suggest doing an md5sum or something
on it, but that would result in an extra fork for every file, which
brings us back to our original level of slowness (or worse).

Hmm, I gues using a cachefile like $sha1/$path would work; it requires
a "mkdir -p", but only when *filling* the cache.

Keep in mind that $path can have slashes. So you actually need to:

   mkdir -p `dirname $sha1/$path`
   echo $new >$sha1/$path

-Peff