t7508: add test for "git status" refreshing the index

diff --git a/parse-options.c b/parse-options.c
index c83035d013d3f50e9367f2b07d49cf17a1e22ff6..8546d8526f311e2a2703c258a4da3f02f8650df4 100644 (file)
--- a/parse-options.c
+++ b/parse-options.c
@@ -659,3 +659,18 @@ int parse_opt_tertiary(const struct option *opt, const char *arg, int unset)
        *target = unset ? 2 : 1;
        return 0;
 }
+
+int parse_options_concat(struct option *dst, size_t dst_size, struct option *src)
+{
+       int i, j;
+
+       for (i = 0; i < dst_size; i++)
+               if (dst[i].type == OPTION_END)
+                       break;
+       for (j = 0; i < dst_size; i++, j++) {
+               dst[i] = src[j];
+               if (src[j].type == OPTION_END)
+                       return 0;
+       }
+       return -1;
+}