Jeff King <[email protected]> writes:
> I wonder if the thinking in the original was that it was our
> responsibility here to make sure that ref->old_sha1 was filled in.
I am reasonably sure that is the (perhaps mistaken) reasoning behind
the use of old_sha1 as the second parameter to get_sha1_hex().
> It is
> always filled in by the caller who gives us "sought", which makes sense
> to me (this matches the rest of the "sought" entries, which come from
> reading the remote's ref list, and of course must fill in old_sha1 from
> that list).
I see that sought is populated by reading the command line of "git
fetch-pack", and for a 40-hex request ref->old_sha1 is already
filled there, so I agree that it is redundant to try filling it in
filter_refs().
Thanks.
> fetch-pack.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/fetch-pack.c b/fetch-pack.c
> index 655ee64..058c258 100644
> --- a/fetch-pack.c
> +++ b/fetch-pack.c
> @@ -544,10 +544,14 @@ static void filter_refs(struct fetch_pack_args *args,
> /* Append unmatched requests to the list */
> if (allow_tip_sha1_in_want) {
> for (i = 0; i < nr_sought; i++) {
> + unsigned char sha1[20];
> +
> ref = sought[i];
> if (ref->matched)
> continue;
> - if (get_sha1_hex(ref->name, ref->old_sha1))
> + if (get_sha1_hex(ref->name, sha1) ||
> + ref->name[40] != '\0' ||
> + hashcmp(sha1, ref->old_sha1))
> continue;
>
> ref->matched = 1;
--
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