submodule: add a helper to check if it is safe to write to .gitmodules

diff --git a/builtin/check-attr.c b/builtin/check-attr.c
index 4d01ca0c8ba0ba2a1d2c209b766e19d9ca9c8ac0..c05573ff9cd091cbe3b5ff1980fa7fb4815f6ebd 100644 (file)
--- a/builtin/check-attr.c
+++ b/builtin/check-attr.c
@@ -1,5 +1,6 @@
 #include "builtin.h"
 #include "cache.h"
+#include "config.h"
 #include "attr.h"
 #include "quote.h"
 #include "parse-options.h"
@@ -62,9 +63,9 @@ static void check_attr(const char *prefix,
                prefix_path(prefix, prefix ? strlen(prefix) : 0, file);
 
        if (collect_all) {
-               git_all_attrs(full_path, check);
+               git_all_attrs(&the_index, full_path, check);
        } else {
-               if (git_check_attr(full_path, check))
+               if (git_check_attr(&the_index, full_path, check))
                        die("git_check_attr died");
        }
        output_attr(check, file);
@@ -119,7 +120,7 @@ int cmd_check_attr(int argc, const char **argv, const char *prefix)
        }
 
        if (cached_attrs)
-               git_attr_set_direction(GIT_ATTR_INDEX, NULL);
+               git_attr_set_direction(GIT_ATTR_INDEX);
 
        doubledash = -1;
        for (i = 0; doubledash < 0 && i < argc; i++) {