Function create_alias_ce

read-cache.c:684–702

* If we add a filename that aliases in the cache, we will use the * name that we already have - but we don't want to update the same * alias twice, because that implies that there were actually two * different files with aliasing names! * * So we use the CE_ADDED flag to verify that the alias was an old * one before we accept it as */

 * one before we accept it as
 */
static struct cache_entry *create_alias_ce(struct index_state *istate,
					   struct cache_entry *ce,
					   struct cache_entry *alias)
{
	int len;
	struct cache_entry *new_entry;

	if (alias->ce_flags & CE_ADDED)
		die(_("will not add file alias '%s' ('%s' already exists in index)"),
		    ce->name, alias->name);

	/* Ok, create the new entry using the name of the existing alias */
	len = ce_namelen(alias);
	new_entry = make_empty_cache_entry(istate, len);
	memcpy(new_entry->name, alias->name, len);
	copy_cache_entry(new_entry, ce);
	save_or_free_index_entry(istate, ce);
	return new_entry;
}

void set_object_name_for_intent_to_add_entry(struct cache_entry *ce)
{