read-cache: mark updated entries for split index

diff --git a/split-index.c b/split-index.c
index 2bb5d556f0d7929f4d58737154874f9879862009..b36c73b3aa95f41d1f3170deeda796bdc34996bc 100644 (file)
--- a/split-index.c
+++ b/split-index.c
@@ -100,3 +100,18 @@ void save_or_free_index_entry(struct index_state *istate, struct cache_entry *ce
        else
                free(ce);
 }
+
+void replace_index_entry_in_base(struct index_state *istate,
+                                struct cache_entry *old,
+                                struct cache_entry *new)
+{
+       if (old->index &&
+           istate->split_index &&
+           istate->split_index->base &&
+           old->index <= istate->split_index->base->cache_nr) {
+               new->index = old->index;
+               if (old != istate->split_index->base->cache[new->index - 1])
+                       free(istate->split_index->base->cache[new->index - 1]);
+               istate->split_index->base->cache[new->index - 1] = new;
+       }
+}