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[PATCH v2 3/3] fetch: die on invalid --negotiation-tip hash

From
JTJonathan Tan <jonathantanmy@google.com>
Date
Jul 15, 2021, 17:44 UTC
Message-ID
<476da85859eb333573c3f87cc7284b8b28032214.1626370766.git.jonathantanmy@google.com>
In-Reply-To
<cover.1626370766.git.jonathantanmy@google.com>

If a full hexadecimal hash is given as a --negotiation-tip to "git fetch", and that hash does not correspond to an object, "git fetch" will segfault if --negotiate-only is given and will silently ignore that hash otherwise. Make these cases fatal errors, just like the case when an invalid ref name or abbreviated hash is given.

While at it, mark the error messages as translatable.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin/fetch.c  |  4 +++-
 t/t5510-fetch.sh | 13 +++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)
diff --git a/builtin/fetch.c b/builtin/fetch.c
index dfde96a435..0aeb043840 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -1428,7 +1428,9 @@ static void add_negotiation_tips(struct git_transport_options *smart_options)
 		if (!has_glob_specials(s)) {
 			struct object_id oid;
 			if (get_oid(s, &oid))
-				die("%s is not a valid object", s);
+				die(_("%s is not a valid object"), s);
+			if (!has_object(the_repository, &oid, 0))
+				die(_("the object %s does not exist"), s);
 			oid_array_append(oids, &oid);
 			continue;
 		}
diff --git a/t/t5510-fetch.sh b/t/t5510-fetch.sh
index e83b2a6506..a0faf0dd94 100755
--- a/t/t5510-fetch.sh
+++ b/t/t5510-fetch.sh
@@ -1214,6 +1214,19 @@ test_expect_success '--negotiation-tip understands abbreviated SHA-1' '
 	check_negotiation_tip
 '
 
+test_expect_success '--negotiation-tip rejects missing OIDs' '
+	setup_negotiation_tip server server 0 &&
+	test_must_fail git -C client fetch \
+		--negotiation-tip=alpha_1 \
+		--negotiation-tip=$(test_oid zero) \
+		origin alpha_s beta_s 2>err &&
+	cat >fatal-expect <<-EOF &&
+	fatal: the object $(test_oid zero) does not exist
+EOF
+	grep fatal: err >fatal-actual &&
+	test_cmp fatal-expect fatal-actual
+'
+
 . "$TEST_DIRECTORY"/lib-httpd.sh
 start_httpd
 
-- 
2.32.0.93.g670b81a890-goog
Previous: Jonathan TanNext: Junio C Hamano
Message 23 of 24 in “Push negotiation fixes”
  1. 0/3 Push negotiation fixesJonathan Tan, Jun 23, 2021
  2. 2/3 send-pack: fix push nego. when remote has refsJonathan Tan, Jun 23, 2021
  3. Emily ShafferJul 13, 2021
  4. Jonathan TanJul 14, 2021
  5. 1/3 send-pack: fix push.negotiate with remote helperJonathan Tan, Jun 23, 2021
  6. Emily ShafferJul 13, 2021
  7. Jonathan TanJul 14, 2021
  8. Ævar Arnfjörð BjarmasonJul 13, 2021
  9. Jonathan TanJul 14, 2021
  10. Ævar Arnfjörð BjarmasonJul 14, 2021
  11. 3/3 fetch: die on invalid --negotiation-tip hashJonathan Tan, Jun 23, 2021
  12. Emily ShafferJul 13, 2021
  13. Ævar Arnfjörð BjarmasonJul 13, 2021
  14. Jonathan TanJul 14, 2021
  15. Ævar Arnfjörð BjarmasonJul 14, 2021
  16. 0/3 Push negotiation fixesJonathan Tan, Jul 15, 2021
  17. 1/3 send-pack: fix push.negotiate with remote helperJonathan Tan, Jul 15, 2021
  18. Ævar Arnfjörð BjarmasonJul 27, 2021
  19. 2/3 send-pack: fix push nego. when remote has refsJonathan Tan, Jul 15, 2021
  20. Ævar Arnfjörð BjarmasonJul 27, 2021
  21. Jeff KingJul 27, 2021
  22. Jonathan TanJul 27, 2021
  23. 3/3 fetch: die on invalid --negotiation-tip hashJonathan Tan, Jul 15, 2021
  24. Junio C HamanoJul 15, 2021

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