On Thu, Jun 7, 2018 at 4:07 PM Derrick Stolee wrote:
>
> If the multi-pack-index contains a packfile, then we do not need to add
> that packfile to the packed_git linked list or the MRU list.
Because...?
I think I see the reason, but I'd like it spelled out to avoid any
misunderstanding.
>
> Signed-off-by: Derrick Stolee
> ---
> midx.c | 23 +++
> midx.h | 1 +
> packfile.c | 7 +++
> 3 files changed, 31 insertions(+)
>
> diff --git a/midx.c b/midx.c
> index 388d79b7d9..3242646fe0 100644
> --- a/midx.c
> +++ b/midx.c
> @@ -278,6 +278,29 @@ int fill_midx_entry(const struct object_id *oid, struct
> pack_entry *e, struct mi
> return nth_midxed_pack_entry(m, e, pos);
> }
>
> +int midx_contains_pack(struct midxed_git *m, const char *idx_name)
> +{
> + uint32_t first = 0, last = m->num_packs;
> +
> + while (first < last) {
> + uint32_t mid = first + (last - first) / 2;
> + const char *current;
> + int cmp;
> +
> + current = m->pack_names[mid];
> + cmp = strcmp(idx_name, current);
> + if (!cmp)
> + return 1;
> + if (cmp > 0) {
> + first = mid + 1;
> + continue;
> + }
> + last = mid;
> + }
> +
> + return 0;
> +}
> +
> int prepare_midxed_git_one(struct repository *r, const char *object_dir)
> {
> struct midxed_git *m = r->objects->midxed_git;
> diff --git a/midx.h b/midx.h
> index 497bdcc77c..c1db58d8c4 100644
> --- a/midx.h
> +++ b/midx.h
> @@ -13,6 +13,7 @@ struct object_id *nth_midxed_object_oid(struct object_id
> *oid,
> struct midxed_git *m,
> uint32_t n);
> int fill_midx_entry(const struct object_id *oid, struct pack_entry *e,
> struct midxed_git *m);
> +int midx_contains_pack(struct midxed_git *m, const char *idx_name);
> int prepare_midxed_git_one(struct repository *r, const char *object_dir);
>
> int write_midx_file(const char *object_dir);
> diff --git a/packfile.c b/packfile.c
> index 059b2aa097..479cb69b9f 100644
> --- a/packfile.c
> +++ b/packfile.c
> @@ -746,6 +746,11 @@ static void prepare_packed_git_one(struct repository *r,
> char *objdir, int local
> DIR *dir;
> struct dirent *de;
> struct string_list garbage = STRING_LIST_INIT_DUP;
> + struct midxed_git *m = r->objects->midxed_git;
> +
> + /* look for the multi-pack-index for this object directory */
> + while (m && strcmp(m->object_dir, objdir))
> + m = m->next;
>
> strbuf_addstr(&path, objdir);
> strbuf_addstr(&path, "/pack");
> @@ -772,6 +777,8 @@ static void prepare_packed_git_one(struct repository *r,
> char *objdir, int local
> base_len = path.len;
> if (strip_suffix_mem(path.buf, &base_len, ".idx")) {
> /* Don't reopen a pack we already have. */
> + if (m && midx_contains_pack(m, de->d_name))
> + continue;
> for (p = r->objects->packed_git; p;
> p = p->next) {
> size_t len;
> --
> 2.18.0.rc1
>
--
Duy
