From eff40457a4ab4887c677453d11774322a494a98c Mon Sep 17 00:00:00 2001 From: =?utf8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?= Date: Thu, 8 Jul 2021 12:53:15 +0200 Subject: [PATCH] fetch: fix segfault in --negotiate-only without --negotiation-tip=* MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The recent --negotiate-only option would segfault in the call to oid_array_for_each() in negotiate_using_fetch() unless one or more --negotiation-tip=* options were provided. All of the other tests for the feature combine both, but nothing was checking this assumption, let's do that and add a test for it. Fixes a bug in 9c1e657a8fd (fetch: teach independent negotiation (no packfile), 2021-05-04). Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano --- builtin/fetch.c | 3 +++ t/t5702-protocol-v2.sh | 16 ++++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/builtin/fetch.c b/builtin/fetch.c index dfde96a435..3f3fa0859f 100644 --- a/builtin/fetch.c +++ b/builtin/fetch.c @@ -1990,6 +1990,9 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) fetch_config_from_gitmodules(sfjc, rs); } + if (negotiate_only && !negotiation_tip.nr) + die(_("--negotiate-only needs one or more --negotiate-tip=*")); + if (deepen_relative) { if (deepen_relative < 0) die(_("Negative depth in --deepen is not supported")); diff --git a/t/t5702-protocol-v2.sh b/t/t5702-protocol-v2.sh index 66af411057..78de1ff2ad 100755 --- a/t/t5702-protocol-v2.sh +++ b/t/t5702-protocol-v2.sh @@ -599,6 +599,22 @@ setup_negotiate_only () { test_commit -C client three } +test_expect_success 'usage: --negotiate-only without --negotiation-tip' ' + SERVER="server" && + URI="file://$(pwd)/server" && + + setup_negotiate_only "$SERVER" "$URI" && + + cat >err.expect <<-\EOF && + fatal: --negotiate-only needs one or more --negotiate-tip=* + EOF + + test_must_fail git -c protocol.version=2 -C client fetch \ + --negotiate-only \ + origin 2>err.actual && + test_cmp err.expect err.actual +' + test_expect_success 'file:// --negotiate-only' ' SERVER="server" && URI="file://$(pwd)/server" && -- 2.11.4.GIT