Function prime_cache_tree_rec

cache-tree.c:796–850

}

static void prime_cache_tree_rec(struct repository *r,
				 struct cache_tree *it,
				 struct tree *tree,
				 struct strbuf *tree_path)
{
	struct tree_desc desc;
	struct name_entry entry;
	int cnt;
	size_t base_path_len = tree_path->len;

	oidcpy(&it->oid, &tree->object.oid);

	init_tree_desc(&desc, &tree->object.oid, tree->buffer, tree->size);
	cnt = 0;
	while (tree_entry(&desc, &entry)) {
		if (!S_ISDIR(entry.mode))
			cnt++;
		else {
			struct cache_tree_sub *sub;
			struct tree *subtree = lookup_tree(r, &entry.oid);

			if (repo_parse_tree(the_repository, subtree) < 0)
				exit(128);
			sub = cache_tree_sub(it, entry.path);
			sub->cache_tree = cache_tree();

			/*
			 * Recursively-constructed subtree path is only needed when working
			 * in a sparse index (where it's used to determine whether the
			 * subtree is a sparse directory in the index).
			 */
			if (r->index->sparse_index) {
				strbuf_setlen(tree_path, base_path_len);
				strbuf_add(tree_path, entry.path, entry.pathlen);
				strbuf_addch(tree_path, '/');
			}

			/*
			 * If a sparse index is in use, the directory being processed may be
			 * sparse. To confirm that, we can check whether an entry with that
			 * exact name exists in the index. If it does, the created subtree
			 * should be sparse. Otherwise, cache tree expansion should continue
			 * as normal.
			 */
			if (r->index->sparse_index &&
			    index_entry_exists(r->index, tree_path->buf, tree_path->len))
				prime_cache_tree_sparse_dir(sub->cache_tree, subtree);
			else
				prime_cache_tree_rec(r, sub->cache_tree, subtree, tree_path);
			cnt += sub->cache_tree->entry_count;
		}
	}

	it->entry_count = cnt;
}

void prime_cache_tree(struct repository *r,
		      struct index_state *istate,