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fetch-pack: call prepare_shallow_info only if v0 

In fetch_pack(), be clearer that there is no shallow information before
the fetch when v2 is used - memset the struct shallow_info to 0 instead
of calling prepare_shallow_info().

This patch is in preparation for a future patch in which a v2 fetch
might call prepare_shallow_info() after shallow info has been retrieved
during the fetch, so I needed to ensure that prepare_shallow_info() is
not called before the fetch.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Tan 2019-03-26 12:31:20 -07:00 committed by Junio C Hamano
parent a51423bc68
commit 1e7d440b0a
2 changed files with 11 additions and 3 deletions
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4
commit.h
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@ -257,6 +257,10 @@ extern void setup_alternate_shallow(struct lock_file *shallow_lock,
extern const char *setup_temporary_shallow(const struct oid_array *extra);
extern void advertise_shallow_grafts(int);
/*
* Initialize with prepare_shallow_info() or zero-initialize (equivalent to
* prepare_shallow_info with a NULL oid_array).
*/
struct shallow_info {
struct oid_array *shallow;
int *ours, nr_ours;

10
fetch-pack.c
View File

@ -1648,13 +1648,17 @@ struct ref *fetch_pack(struct fetch_pack_args *args,
packet_flush(fd[1]);
die(_("no matching remote head"));
}
prepare_shallow_info(&si, shallow);
if (version == protocol_v2)
if (version == protocol_v2) {
if (shallow->nr)
BUG("Protocol V2 does not provide shallows at this point in the fetch");
memset(&si, 0, sizeof(si));
ref_cpy = do_fetch_pack_v2(args, fd, ref, sought, nr_sought,
pack_lockfile);
else
} else {
prepare_shallow_info(&si, shallow);
ref_cpy = do_fetch_pack(args, fd, ref, sought, nr_sought,
&si, pack_lockfile);
}
reprepare_packed_git(the_repository);
if (!args->cloning && args->deepen) {