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authorÆvar Arnfjörð Bjarmason <avarab@gmail.com>2022-02-05 02:48:30 +0300
committerJunio C Hamano <gitster@pobox.com>2022-02-26 04:16:31 +0300
commit0f156dbb04b434d95ce5465e6b07d8869d55e8e0 (patch)
treed53cf2b523a488748552b463a499908496592516 /pack-check.c
parentee213de22d15e801ba3712be0cb8ecbf7415fa1d (diff)
object-file API: split up and simplify check_object_signature()
Split up the check_object_signature() function into that non-streaming version (it accepts an already filled "buf"), and a new stream_object_signature() which will retrieve the object from storage, and hash it on-the-fly. All of the callers of check_object_signature() were effectively calling two different functions, if we go by cyclomatic complexity. I.e. they'd either take the early "if (map)" branch and return early, or not. This has been the case since the "if (map)" condition was added in 090ea12671b (parse_object: avoid putting whole blob in core, 2012-03-07). We can then further simplify the resulting check_object_signature() function since only one caller wanted to pass a non-NULL "buf" and a non-NULL "real_oidp". That "read_loose_object()" codepath used by "git fsck" can instead use hash_object_file() followed by oideq(). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'pack-check.c')
-rw-r--r--pack-check.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/pack-check.c b/pack-check.c
index 48d818ee7b..d8d8f91de6 100644
--- a/pack-check.c
+++ b/pack-check.c
@@ -127,7 +127,7 @@ static int verify_packfile(struct repository *r,
if (type == OBJ_BLOB && big_file_threshold <= size) {
/*
- * Let check_object_signature() check it with
+ * Let stream_object_signature() check it with
* the streaming interface; no point slurping
* the data in-core only to discard.
*/
@@ -142,8 +142,11 @@ static int verify_packfile(struct repository *r,
err = error("cannot unpack %s from %s at offset %"PRIuMAX"",
oid_to_hex(&oid), p->pack_name,
(uintmax_t)entries[i].offset);
- else if (check_object_signature(r, &oid, data, size,
- type_name(type), NULL) < 0)
+ else if (data && check_object_signature(r, &oid, data, size,
+ type_name(type)) < 0)
+ err = error("packed %s from %s is corrupt",
+ oid_to_hex(&oid), p->pack_name);
+ else if (!data && stream_object_signature(r, &oid) < 0)
err = error("packed %s from %s is corrupt",
oid_to_hex(&oid), p->pack_name);
else if (fn) {