1 files changed, 17 insertions, 15 deletions

diff --git a/third_party/git/pack-check.c b/third_party/git/pack-check.c
index dad6d8ae7f..2cc3603189 100644
--- a/third_party/git/pack-check.c
+++ b/third_party/git/pack-check.c
@@ -8,6 +8,10 @@
 
 struct idx_entry {
 	off_t                offset;
+	union idx_entry_object {
+		const unsigned char *hash;
+		struct object_id *oid;
+	} oid;
 	unsigned int nr;
 };
 
@@ -63,23 +67,23 @@ static int verify_packfile(struct repository *r,
 	if (!is_pack_valid(p))
 		return error("packfile %s cannot be accessed", p->pack_name);
 
-	r->hash_algo->init_fn(&ctx);
+	the_hash_algo->init_fn(&ctx);
 	do {
 		unsigned long remaining;
 		unsigned char *in = use_pack(p, w_curs, offset, &remaining);
 		offset += remaining;
 		if (!pack_sig_ofs)
-			pack_sig_ofs = p->pack_size - r->hash_algo->rawsz;
+			pack_sig_ofs = p->pack_size - the_hash_algo->rawsz;
 		if (offset > pack_sig_ofs)
 			remaining -= (unsigned int)(offset - pack_sig_ofs);
-		r->hash_algo->update_fn(&ctx, in, remaining);
+		the_hash_algo->update_fn(&ctx, in, remaining);
 	} while (offset < pack_sig_ofs);
-	r->hash_algo->final_fn(hash, &ctx);
+	the_hash_algo->final_fn(hash, &ctx);
 	pack_sig = use_pack(p, w_curs, pack_sig_ofs, NULL);
 	if (!hasheq(hash, pack_sig))
 		err = error("%s pack checksum mismatch",
 			    p->pack_name);
-	if (!hasheq(index_base + index_size - r->hash_algo->hexsz, pack_sig))
+	if (!hasheq(index_base + index_size - the_hash_algo->hexsz, pack_sig))
 		err = error("%s pack checksum does not match its index",
 			    p->pack_name);
 	unuse_pack(w_curs);
@@ -93,6 +97,9 @@ static int verify_packfile(struct repository *r,
 	entries[nr_objects].offset = pack_sig_ofs;
 	/* first sort entries by pack offset, since unpacking them is more efficient that way */
 	for (i = 0; i < nr_objects; i++) {
+		entries[i].oid.hash = nth_packed_object_sha1(p, i);
+		if (!entries[i].oid.hash)
+			die("internal error pack-check nth-packed-object");
 		entries[i].offset = nth_packed_object_offset(p, i);
 		entries[i].nr = i;
 	}
@@ -100,16 +107,11 @@ static int verify_packfile(struct repository *r,
 
 	for (i = 0; i < nr_objects; i++) {
 		void *data;
-		struct object_id oid;
 		enum object_type type;
 		unsigned long size;
 		off_t curpos;
 		int data_valid;
 
-		if (nth_packed_object_id(&oid, p, entries[i].nr) < 0)
-			BUG("unable to get oid of object %lu from %s",
-			    (unsigned long)entries[i].nr, p->pack_name);
-
 		if (p->index_version > 1) {
 			off_t offset = entries[i].offset;
 			off_t len = entries[i+1].offset - offset;
@@ -117,7 +119,7 @@ static int verify_packfile(struct repository *r,
 			if (check_pack_crc(p, w_curs, offset, len, nr))
 				err = error("index CRC mismatch for object %s "
 					    "from %s at offset %"PRIuMAX"",
-					    oid_to_hex(&oid),
+					    oid_to_hex(entries[i].oid.oid),
 					    p->pack_name, (uintmax_t)offset);
 		}
 
@@ -140,14 +142,14 @@ static int verify_packfile(struct repository *r,
 
 		if (data_valid && !data)
 			err = error("cannot unpack %s from %s at offset %"PRIuMAX"",
-				    oid_to_hex(&oid), p->pack_name,
+				    oid_to_hex(entries[i].oid.oid), p->pack_name,
 				    (uintmax_t)entries[i].offset);
-		else if (check_object_signature(r, &oid, data, size, type_name(type)))
+		else if (check_object_signature(entries[i].oid.oid, data, size, type_name(type)))
 			err = error("packed %s from %s is corrupt",
-				    oid_to_hex(&oid), p->pack_name);
+				    oid_to_hex(entries[i].oid.oid), p->pack_name);
 		else if (fn) {
 			int eaten = 0;
-			err |= fn(&oid, type, size, data, &eaten);
+			err |= fn(entries[i].oid.oid, type, size, data, &eaten);
 			if (eaten)
 				data = NULL;
 		}