On Feb 27, 2007, at 15:05, Johannes Schindelin wrote:
On Tue, 27 Feb 2007, Geert Bosch wrote:
The object-count at the beginning of the pack is a little strange for
local on-disk pack files, as it is data that can easily be derived.
The SHA1 is also easily derived. So think of it as a doubly secure
way to
ensure integrity.
Remember, there were some people unable to accept that SHA1
collisions are
_unlikely_...
Ah, you include the count because you don't trust the SHA1
and now you can count that you got the right number of objects ;-)
It's just that I don't see a use for the count in a local on-disk
pack. In these cases we'll always have an index. We can keep the
current protocol for sending/receiving packs, no need to ever upgrade
to v4 there.
-Geert
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