Make sure the empty tree exists when needed in merge-recursive.

diff --git a/read-cache.c b/read-cache.c
index 20c9d494ac94380c9074997e9cb3c69ff1c04a3f..eae4745d284e00e279b5b8f4b032bdb9ca433984 100644 (file)
--- a/read-cache.c
+++ b/read-cache.c
@@ -347,11 +347,13 @@ int add_file_to_index(const char *path, int verbose)
        ce->ce_mode = create_ce_mode(st.st_mode);
        if (!trust_executable_bit) {
                /* If there is an existing entry, pick the mode bits
-                * from it.
+                * from it, otherwise assume unexecutable.
                 */
                int pos = cache_name_pos(path, namelen);
                if (pos >= 0)
                        ce->ce_mode = active_cache[pos]->ce_mode;
+               else if (S_ISREG(st.st_mode))
+                       ce->ce_mode = create_ce_mode(S_IFREG | 0666);
        }
 
        if (index_path(ce->sha1, path, &st, 1))
@@ -842,7 +844,7 @@ int read_cache_from(const char *path)
        die("index file corrupt");
 }
 
-int discard_cache()
+int discard_cache(void)
 {
        int ret;