submodule--helper: die on config error when cloning module

diff --git a/path.c b/path.c
index f28ace2963bb3f0f76af0e363add22ed73a5a2c9..8b7e16812927645367c4912e88d2a5f3065efb85 100644 (file)
--- a/path.c
+++ b/path.c
@@ -740,6 +740,18 @@ int adjust_shared_perm(const char *path)
        return 0;
 }
 
+void safe_create_dir(const char *dir, int share)
+{
+       if (mkdir(dir, 0777) < 0) {
+               if (errno != EEXIST) {
+                       perror(dir);
+                       exit(1);
+               }
+       }
+       else if (share && adjust_shared_perm(dir))
+               die(_("Could not make %s writable by group"), dir);
+}
+
 static int have_same_root(const char *path1, const char *path2)
 {
        int is_abs1, is_abs2;
@@ -770,13 +782,10 @@ const char *relative_path(const char *in, const char *prefix,
        else if (!prefix_len)
                return in;
 
-       if (have_same_root(in, prefix)) {
+       if (have_same_root(in, prefix))
                /* bypass dos_drive, for "c:" is identical to "C:" */
-               if (has_dos_drive_prefix(in)) {
-                       i = 2;
-                       j = 2;
-               }
-       } else {
+               i = j = has_dos_drive_prefix(in);
+       else {
                return in;
        }
 
@@ -931,11 +940,10 @@ const char *remove_leading_path(const char *in, const char *prefix)
 int normalize_path_copy_len(char *dst, const char *src, int *prefix_len)
 {
        char *dst0;
+       int i;
 
-       if (has_dos_drive_prefix(src)) {
+       for (i = has_dos_drive_prefix(src); i > 0; i--)
                *dst++ = *src++;
-               *dst++ = *src++;
-       }
        dst0 = dst;
 
        if (is_dir_sep(*src)) {