read-cache.c: write prefix-compressed names in the index

diff --git a/cache.h b/cache.h
index 65a7aba158cd5a556038039ea95d540609b67e8e..a3f1279a3edde0c084de9fee1ac708bbb93f6197 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -105,6 +105,9 @@ struct cache_header {
        unsigned int hdr_entries;
 };
 
+#define INDEX_FORMAT_LB 2
+#define INDEX_FORMAT_UB 4
+
 /*
  * The "cache_time" is just the low 32 bits of the
  * time. It doesn't matter if it overflows - we only
@@ -265,6 +268,7 @@ static inline unsigned int canon_mode(unsigned int mode)
 
 struct index_state {
        struct cache_entry **cache;
+       unsigned int version;
        unsigned int cache_nr, cache_alloc, cache_changed;
        struct string_list *resolve_undo;
        struct cache_tree *cache_tree;