struct split_index *init_split_index(struct index_state *istate);
void save_or_free_index_entry(struct index_state *istate, struct cache_entry *ce);
+void replace_index_entry_in_base(struct index_state *istate,
+ struct cache_entry *old,
+ struct cache_entry *new);
int read_link_extension(struct index_state *istate,
const void *data, unsigned long sz);
int write_link_extension(struct strbuf *sb,