name-rev: refactor logic to see if a new candidate is a better name

diff --git a/builtin/update-index.c b/builtin/update-index.c
index f3f07e7f1cb2d952144bf98969b481dc331155bf..d74d72cc7fad93980abd409d2c9dc10ae4652fd3 100644 (file)
--- a/builtin/update-index.c
+++ b/builtin/update-index.c
@@ -1012,6 +1012,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
        /* We can't free this memory, it becomes part of a linked list parsed atexit() */
        lock_file = xcalloc(1, sizeof(struct lock_file));
 
+       /* we will diagnose later if it turns out that we need to update it */
        newfd = hold_locked_index(lock_file, 0);
        if (newfd < 0)
                lock_error = errno;
@@ -1098,17 +1099,20 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
        }
 
        if (split_index > 0) {
-               init_split_index(&the_index);
-               the_index.cache_changed |= SPLIT_INDEX_ORDERED;
-       } else if (!split_index && the_index.split_index) {
-               /*
-                * can't discard_split_index(&the_index); because that
-                * will destroy split_index->base->cache[], which may
-                * be shared with the_index.cache[]. So yeah we're
-                * leaking a bit here.
-                */
-               the_index.split_index = NULL;
-               the_index.cache_changed |= SOMETHING_CHANGED;
+               if (git_config_get_split_index() == 0)
+                       warning(_("core.splitIndex is set to false; "
+                                 "remove or change it, if you really want to "
+                                 "enable split index"));
+               if (the_index.split_index)
+                       the_index.cache_changed |= SPLIT_INDEX_ORDERED;
+               else
+                       add_split_index(&the_index);
+       } else if (!split_index) {
+               if (git_config_get_split_index() == 1)
+                       warning(_("core.splitIndex is set to true; "
+                                 "remove or change it, if you really want to "
+                                 "disable split index"));
+               remove_split_index(&the_index);
        }
 
        switch (untracked_cache) {