From: Junio C Hamano <gitster@pobox.com>
Date: Fri, 09 May 2008 03:21:57 GMT
Subject: Re: git gc & deleted branches
Message-ID: <7vabj0b1re.fsf@gitster.siamese.dyndns.org>
In-Reply-To: <loom.20080509T011318-478@post.gmane.org>

Brandon Casey <drafnel@gmail.com> writes:

> @@ -116,7 +113,15 @@ for name in $names ; do
>                 echo >&2 "old-pack-$name.{pack,idx} in $PACKDIR."
>                 exit 1
>         }
> -       rm -f "$PACKDIR/old-pack-$name.pack" "$PACKDIR/old-pack-$name.idx"
> +       rm -f "$PACKDIR/old-pack-$name.idx"
> +       test -z "$keep_unreachable" ||
> +         ! test -f "$PACKDIR/old-pack-$name.pack" ||
> +         git unpack-objects < "$PACKDIR/old-pack-$name.pack" || {
> +               echo >&2 "Failed unpacking unreachable objects from old pack"
> +               echo >&2 "saved as old-pack-$name.pack in $PACKDIR."
> +               exit 1
> +       }

Neat trick.  Unreachable objects that are only in this pack will get
current timestamp and gets a new lease of life for two weeks and then will
disappear.