Function reuse_partial_packfile_from_bitmap

pack-bitmap.c:2462–2577

}

void reuse_partial_packfile_from_bitmap(struct bitmap_index *bitmap_git,
					struct bitmapped_pack **packs_out,
					size_t *packs_nr_out,
					struct bitmap **reuse_out,
					int multi_pack_reuse)
{
	struct repository *r = bitmap_repo(bitmap_git);
	struct bitmapped_pack *packs = NULL;
	struct bitmap *result = bitmap_git->result;
	struct bitmap *reuse;
	size_t i;
	size_t packs_nr = 0, packs_alloc = 0;
	size_t word_alloc;
	uint32_t objects_nr = 0;

	assert(result);

	load_reverse_index(r, bitmap_git);

	if (!bitmap_is_midx(bitmap_git) || !bitmap_git->midx->chunk_bitmapped_packs)
		multi_pack_reuse = 0;

	if (multi_pack_reuse) {
		struct multi_pack_index *m = bitmap_git->midx;
		for (i = 0; i < m->num_packs + m->num_packs_in_base; i++) {
			struct bitmapped_pack pack;
			if (nth_bitmapped_pack(bitmap_git->midx, &pack, i) < 0) {
				warning(_("unable to load pack: '%s', disabling pack-reuse"),
					bitmap_git->midx->pack_names[i]);
				free(packs);
				return;
			}

			if (!pack.bitmap_nr)
				continue;

			if (is_pack_valid(pack.p)) {
				ALLOC_GROW(packs, packs_nr + 1, packs_alloc);
				memcpy(&packs[packs_nr++], &pack, sizeof(pack));
			}

			objects_nr += pack.p->num_objects;
		}

		QSORT(packs, packs_nr, bitmapped_pack_cmp);
	} else {
		struct packed_git *pack;
		uint32_t pack_int_id;

		if (bitmap_is_midx(bitmap_git)) {
			struct multi_pack_index *m = bitmap_git->midx;
			uint32_t preferred_pack_pos;

			while (m->base_midx)
				m = m->base_midx;

			if (midx_preferred_pack(m, &preferred_pack_pos) < 0) {
				warning(_("unable to compute preferred pack, disabling pack-reuse"));