submodule.c: stricter checking for submodules in is_submodule_modified

By having a stricter check in the superproject we catch errors earlier,
instead of spawning a child process to tell us.

Signed-off-by: Stefan Beller <sbeller@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/submodule.c b/submodule.c
index 5865795..fa21c7b 100644 (file)
--- a/submodule.c
+++ b/submodule.c
@@ -1052,11 +1052,12 @@ unsigned is_submodule_modified(const char *path, int ignore_untracked)
        git_dir = read_gitfile(buf.buf);
        if (!git_dir)
                git_dir = buf.buf;
-       if (!is_directory(git_dir)) {
+       if (!is_git_directory(git_dir)) {
+               if (is_directory(git_dir))
+                       die(_("'%s' not recognized as a git repository"), git_dir);
                strbuf_release(&buf);
                /* The submodule is not checked out, so it is not modified */
                return 0;
-
        }
        strbuf_reset(&buf);