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odb/source-loose: store pointer to "files" instead of generic source

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The `struct odb_source_loose` holds a pointer to its owning parent
source. The way that Git is currently structured, this parent is always
the "files" source. In subsequent commits we're going to detangle that
so that the "loose" source doesn't have any owning parent source at all
so that it can be used as a completely standalone source.

Detangling this mess is somewhat intricate though, and is made even more
intricate because it's not always clear which kind of source one is
holding at a specific point in time -- either the parent "files" source,
or the child "loose" source.

Make this relationship more explicit by storing a pointer to the "files"
source instead of storing a pointer to a generic `struct odb_source`.
This will help make subsequent steps a bit clearer.

Note that this is a temporary step, only. At the end of this series
we will have dropped the parent pointer completely.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt
2026-06-01 10:20:25 +02:00
committed by Junio C Hamano
parent 514f039c90
commit 1d451ba6fe
4 changed files with 8 additions and 7 deletions
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4
object-file.c
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@@ -178,7 +178,7 @@ static int open_loose_object(struct odb_source_loose *loose,
static struct strbuf buf = STRBUF_INIT;
int fd;
*path = odb_loose_path(loose->source, &buf, oid);
*path = odb_loose_path(&loose->files->base, &buf, oid);
fd = git_open(*path);
if (fd >= 0)
return fd;
@@ -189,7 +189,7 @@ static int open_loose_object(struct odb_source_loose *loose,
static int quick_has_loose(struct odb_source_loose *loose,
const struct object_id *oid)
{
return !!oidtree_contains(odb_source_loose_cache(loose->source, oid), oid);
return !!oidtree_contains(odb_source_loose_cache(&loose->files->base, oid), oid);
}
/*