assert NOARG/NONEG behavior of parse-options callbacks

diff --git a/builtin/init-db.c b/builtin/init-db.c
index 4ecf90936822e64998651e4d51d1be9c921dee60..41faffd28db8850fb97daa52c6d481375b380504 100644 (file)
--- a/builtin/init-db.c
+++ b/builtin/init-db.c
@@ -73,7 +73,8 @@ static void copy_templates_1(struct strbuf *path, struct strbuf *template_path,
                        continue;
                else if (S_ISLNK(st_template.st_mode)) {
                        struct strbuf lnk = STRBUF_INIT;
-                       if (strbuf_readlink(&lnk, template_path->buf, 0) < 0)
+                       if (strbuf_readlink(&lnk, template_path->buf,
+                                           st_template.st_size) < 0)
                                die_errno(_("cannot readlink '%s'"), template_path->buf);
                        if (symlink(lnk.buf, path->buf))
                                die_errno(_("cannot symlink '%s' '%s'"),
@@ -450,6 +451,7 @@ static int guess_repository_type(const char *git_dir)
 
 static int shared_callback(const struct option *opt, const char *arg, int unset)
 {
+       BUG_ON_OPT_NEG(unset);
        *((int *) opt->value) = (arg) ? git_config_perm("arg", arg) : PERM_GROUP;
        return 0;
 }