tree 962e5c2742ae80de7f45353ba5813580caeeaa99
parent ebf3c04b262aa27fbb97f8a0156c2347fecafafb
author Taylor Blau <me@ttaylorr.com> 1624473547 -0400
committer Junio C Hamano <gitster@pobox.com> 1624937777 -0700

csum-file: introduce checksum_valid()

Introduce a new function which checks the validity of a file's trailing
checksum. This is similar to hashfd_check(), but different since it is
intended to be used by callers who aren't writing the same data (like
`git index-pack --verify`), but who instead want to validate the
integrity of data that they are reading.

Rewrite the first of two callers which could benefit from this new
function in pack-check.c. Subsequent callers will be added in the
following patches.

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>