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odb: use size_t for object_info.sizep and the size APIs

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When `js/objects-larger-than-4gb-on-windows` widened the streaming,
index-pack and unpack-objects code paths, in the interest of keeping the
patches somewhat reasonably-sized, it left the public ODB API still
typed in `unsigned long`. In particular `struct object_info::sizep` and
the four wrappers built on top of it (`odb_read_object`,
`odb_read_object_peeled`, `odb_read_object_info`, `odb_pretend_object`)
still return the unpacked size through `unsigned long *`, so on Windows
`cat-file -s` and the `git add` / `git status` paths for a >4 GiB blob
silently cap at 4 GiB.

Widen the field and the four wrappers. The previous commits already
widened the `unpack_entry()` cascade and pack-objects' in-core size
accessors, so most of the cascade arrives here with no further work: the
temporary shims in `packed_object_info_with_index_pos()` and in
`unpack_entry()`'s delta-base recovery path go away, the two
`SET_SIZE(entry, cast_size_t_to_ulong(canonical_size))` calls in
`check_object()` and the matching one in `drop_reused_delta()` collapse
to plain `SET_SIZE`, and `oe_get_size_slow()`'s tail
`cast_size_t_to_ulong()` is gone too.

What remains narrow are the boundaries this series does not
intend to touch: the diff, blame, textconv and fast-import machinery.

Even so, this patch is unfortunately quite large.

Assisted-by: Opus 4.7
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin
2026-06-15 11:52:29 +00:00
committed by Junio C Hamano
parent 7a3a78cc76
commit c6a4629e32
65 changed files with 209 additions and 191 deletions
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5
protocol-caps.c
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@@ -50,7 +50,7 @@ static void send_info(struct repository *r, struct packet_writer *writer,
for_each_string_list_item (item, oid_str_list) {
const char *oid_str = item->string;
struct object_id oid;
unsigned long object_size;
size_t object_size;
if (get_oid_hex_algop(oid_str, &oid, r->hash_algo) < 0) {
packet_writer_error(
@@ -66,7 +66,8 @@ static void send_info(struct repository *r, struct packet_writer *writer,
if (odb_read_object_info(r->objects, &oid, &object_size) < 0) {
strbuf_addstr(&send_buffer, " ");
} else {
strbuf_addf(&send_buffer, " %lu", object_size);
strbuf_addf(&send_buffer, " %"PRIuMAX,
(uintmax_t)object_size);
}
}