Function freshen_shared_index

read-cache.c:2342–2346

* Signal that the shared index is used by updating its mtime. * * This way, shared index can be removed if they have not been used * for some time. */

 * for some time.
 */
static void freshen_shared_index(const char *shared_index, int warn)
{
	if (!check_and_freshen_file(shared_index, 1) && warn)
		warning(_("could not freshen shared index '%s'"), shared_index);
}

int read_index_from(struct index_state *istate, const char *path,
		    const char *gitdir)