#include "cache.h"
#include "lockfile.h"
#include "tree.h"
#include "cache-tree.h"

static struct lock_file index_lock;

int cmd_main(int ac, const char **av)
{
	setup_git_directory();
	hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR);
	if (read_cache() < 0)
		die("unable to read index file");
	active_cache_tree = NULL;
	if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK))
		die("unable to write index file");
	return 0;
}