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fetch-pack: directly end negotiation if ACK ready

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When "ACK %s ready" is received, find_common() clears rev_list in an
attempt to stop further "have" lines from being sent [1]. It is much
more readable to explicitly break from the loop instead.

So explicitly break from the loop, and make the clearing of the rev_list
happen unconditionally.

[1] The rationale is further described in the originating commit
f2cba9299b ("fetch-pack: Finish negotation if remote replies "ACK %s
ready"", 2011-03-14).

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Tan 2018-06-14 15:54:24 -07:00 committed by Junio C Hamano
parent af008558cc
commit 21bcf6e429
1 changed files with 5 additions and 4 deletions
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9
fetch-pack.c
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@ -517,10 +517,8 @@ static int find_common(struct fetch_pack_args *args,
mark_common(commit, 0, 1);
retval = 0;
got_continue = 1;
if (ack == ACK_ready) {
clear_prio_queue(&rev_list);
if (ack == ACK_ready)
got_ready = 1;
}
break;
}
}
@ -530,6 +528,8 @@ static int find_common(struct fetch_pack_args *args,
print_verbose(args, _("giving up"));
break; /* give up */
}
if (got_ready)
break;
}
}
done:
@ -1096,6 +1096,7 @@ static struct ref *do_fetch_pack(struct fetch_pack_args *args,
die(_("git fetch-pack: fetch failed."));
all_done:
clear_prio_queue(&rev_list);
return ref;
}
@ -1300,7 +1301,6 @@ static int process_acks(struct packet_reader *reader, struct oidset *common)
}
if (!strcmp(reader->line, "ready")) {
clear_prio_queue(&rev_list);
received_ready = 1;
continue;
}
@ -1441,6 +1441,7 @@ static struct ref *do_fetch_pack_v2(struct fetch_pack_args *args,
}
}
clear_prio_queue(&rev_list);
oidset_clear(&common);
return ref;
}