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midx: expose `midx_layer_contains_pack()` 

Rename the function `midx_contains_pack_1()` to instead be called
`midx_layer_contains_pack()` and make it accessible. Unlike
`midx_contains_pack()` (which recurses through the entire chain), this
function checks only a single MIDX layer.

This will be used by a subsequent commit to determine whether a given
pack belongs to the tip MIDX layer specifically, rather than to any
layer in the chain.

No functional changes are present in this commit.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
main
Taylor Blau 2026-05-19 11:58:00 -04:00 committed by Junio C Hamano
parent f0ef2afb8b
commit ee6fb58238
2 changed files with 5 additions and 3 deletions
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6
midx.c
View File

@ -667,8 +667,8 @@ static int midx_pack_names_cmp(const void *a, const void *b, void *m_)
m->pack_names[*(const size_t *)b]);
}

static int midx_contains_pack_1(struct multi_pack_index *m,
const char *idx_or_pack_name)
int midx_layer_contains_pack(struct multi_pack_index *m,
const char *idx_or_pack_name)
{
uint32_t first = 0, last = m->num_packs;

@ -709,7 +709,7 @@ static int midx_contains_pack_1(struct multi_pack_index *m,
int midx_contains_pack(struct multi_pack_index *m, const char *idx_or_pack_name)
{
for (; m; m = m->base_midx)
if (midx_contains_pack_1(m, idx_or_pack_name))
if (midx_layer_contains_pack(m, idx_or_pack_name))
return 1;
return 0;
}

2
midx.h
View File

@ -119,6 +119,8 @@ struct object_id *nth_midxed_object_oid(struct object_id *oid,
int fill_midx_entry(struct multi_pack_index *m, const struct object_id *oid, struct pack_entry *e);
int midx_contains_pack(struct multi_pack_index *m,
const char *idx_or_pack_name);
int midx_layer_contains_pack(struct multi_pack_index *m,
const char *idx_or_pack_name);
int midx_preferred_pack(struct multi_pack_index *m, uint32_t *pack_int_id);
int prepare_multi_pack_index_one(struct odb_source *source);