[PATCH 09/15] [GSOC] ref-filter: modify the error message and value in get_object

["ZheNing Hu via GitGitGadget" <gitgitgadget@gmail.com>]

From: ZheNing Hu <adlternative@gmail.com>

Let get_object() return 1 and print "<oid> missing" instead
of returning -1 and printing "missing object <oid> for <refname>"
if oid_object_info_extended() unable to find the data corresponding
to oid. When `cat-file --batch` use ref-filter logic later it can
help `format_ref_array_item()` just report that the object is missing
without letting Git exit.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Hariom Verma <hariom18599@gmail.com>
Signed-off-by: ZheNing Hu <adlternative@gmail.com>
---
 ref-filter.c                   | 4 ++--
 t/t6301-for-each-ref-errors.sh | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/ref-filter.c b/ref-filter.c
index 45122959eef..9ca3dd5557d 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -1749,8 +1749,8 @@ static int get_object(struct ref_array_item *ref, int deref, struct object **obj
 	}
 	if (oid_object_info_extended(the_repository, &oi->oid, &oi->info,
 				     OBJECT_INFO_LOOKUP_REPLACE))
-		return strbuf_addf_ret(err, -1, _("missing object %s for %s"),
-				       oid_to_hex(&oi->oid), ref->refname);
+		return strbuf_addf_ret(err, 1, _("%s missing"),
+				       oid_to_hex(&oi->oid));
 	if (oi->info.disk_sizep && oi->disk_size < 0)
 		BUG("Object size is less than zero.");
 
diff --git a/t/t6301-for-each-ref-errors.sh b/t/t6301-for-each-ref-errors.sh
index 40edf9dab53..3553f84a00c 100755
--- a/t/t6301-for-each-ref-errors.sh
+++ b/t/t6301-for-each-ref-errors.sh
@@ -41,7 +41,7 @@ test_expect_success 'Missing objects are reported correctly' '
 	r=refs/heads/missing &&
 	echo $MISSING >.git/$r &&
 	test_when_finished "rm -f .git/$r" &&
-	echo "fatal: missing object $MISSING for $r" >missing-err &&
+	echo "fatal: $MISSING missing" >missing-err &&
 	test_must_fail git for-each-ref 2>err &&
 	test_cmp missing-err err &&
 	(
-- 
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