1#include "cache.h"2#include "tree.h"3#include "cache-tree.h"45static struct lock_file index_lock;67int main(int ac, char **av)8{9int fd = hold_locked_index(&index_lock, 1);10if (read_cache() < 0)11die("unable to read index file");12active_cache_tree = NULL;13if (write_cache(fd, active_cache, active_nr)14|| commit_lock_file(&index_lock))15die("unable to write index file");16return 0;17}