object-file: get rid of the_repository in has_loose_object()

We implicitly depend on `the_repository` in `has_loose_object()`.
Refactor the function to accept an `odb_source` as input that should be
checked for such a loose object.

This refactoring changes semantics of the function to not check the
whole object database for such a loose object anymore, but instead we
now only check that single source. Existing callers thus need to loop
through all sources manually now.

While this change may seem illogical at first, whether or not an object
exists in a specific format should be answered by the source using that
format. As such, we can eventually convert this into a generic function
`odb_source_has_object()` that simply checks whether a given object
exists in an object source. And as we will know about the format that
any given source uses it allows us to derive whether the object exists
in a given format.

This change also makes `has_loose_object_nonlocal()` obsolete. The only
caller of this function is adapted so that it skips the primary object
source.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt
2025-07-17 06:56:29 +02:00
committed by Junio C Hamano
parent 18323f5b48
commit 931e8c9f52
3 changed files with 30 additions and 17 deletions

View File

@@ -1703,8 +1703,16 @@ static int want_object_in_pack_mtime(const struct object_id *oid,
struct list_head *pos;
struct multi_pack_index *m;
if (!exclude && local && has_loose_object_nonlocal(oid))
return 0;
if (!exclude && local) {
/*
* Note that we start iterating at `sources->next` so that we
* skip the local object source.
*/
struct odb_source *source = the_repository->objects->sources->next;
for (; source; source = source->next)
if (has_loose_object(source, oid))
return 0;
}
/*
* If we already know the pack object lives in, start checks from that
@@ -3928,7 +3936,14 @@ static void add_cruft_object_entry(const struct object_id *oid, enum object_type
} else {
if (!want_object_in_pack_mtime(oid, 0, &pack, &offset, mtime))
return;
if (!pack && type == OBJ_BLOB && !has_loose_object(oid)) {
if (!pack && type == OBJ_BLOB) {
struct odb_source *source = the_repository->objects->sources;
int found = 0;
for (; !found && source; source = source->next)
if (has_loose_object(source, oid))
found = 1;
/*
* If a traversed tree has a missing blob then we want
* to avoid adding that missing object to our pack.
@@ -3942,7 +3957,8 @@ static void add_cruft_object_entry(const struct object_id *oid, enum object_type
* limited to "ensure non-tip blobs which don't exist in
* packs do exist via loose objects". Confused?
*/
return;
if (!found)
return;
}
entry = create_object_entry(oid, type, pack_name_hash_fn(name),