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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>
This commit is contained in:
Johannes Schindelin
2026-06-01 17:53:15 +02:00
parent 12c142f8ab
commit 37d030d867
65 changed files with 209 additions and 191 deletions
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5
diff.c
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@@ -4594,8 +4594,9 @@ int diff_populate_filespec(struct repository *r,
}
}
else {
size_t size_st = 0;
struct object_info info = {
.sizep = &s->size
.sizep = &size_st
};
if (!(size_only || check_binary))
@@ -4617,6 +4618,7 @@ int diff_populate_filespec(struct repository *r,
die("unable to read %s", oid_to_hex(&s->oid));
object_read:
s->size = cast_size_t_to_ulong(size_st);
if (size_only || check_binary) {
if (size_only)
return 0;
@@ -4631,6 +4633,7 @@ object_read:
if (odb_read_object_info_extended(r->objects, &s->oid, &info,
OBJECT_INFO_LOOKUP_REPLACE))
die("unable to read %s", oid_to_hex(&s->oid));
s->size = cast_size_t_to_ulong(size_st);
}
s->should_free = 1;
}