repart: respect `SOURCE_DATE_EPOCH` on `mkdir_p_root`

This let's systemd-repart respect the `SOURCE_DATE_EPOCH` environment
variable when creating directories in the local tree through `CopyFiles`
or `MakeDirectories`.

To do this, we pass a timestamp `ts` to `mkdir_p_root`, which it will
use to fix up `mtime` and `atime` of the directory it creates as
well as the `mtime` of the directory it creates the other directory *in*,
as the `mtime` of the latter is modified when creating a directory in it.

For the same reason, it also needs to fixup the `mtime` of the upper
directory when copying a file into it through `CopyFiles`.

If `SOURCE_DATE_EPOCH`, times are left as is. (`UTIME_OMIT`)

1 files changed, 1 insertions, 1 deletions

diff --git a/src/shared/dissect-image.c b/src/shared/dissect-image.c
index cd49276bd3..471e83b074 100644
--- a/src/shared/dissect-image.c
+++ b/src/shared/dissect-image.c
@@ -2008,7 +2008,7 @@ static int mount_partition(
         if (where) {
                 if (directory) {
                         /* Automatically create missing mount points inside the image, if necessary. */
-                        r = mkdir_p_root(where, directory, uid_shift, (gid_t) uid_shift, 0755, NULL);
+                        r = mkdir_p_root(where, directory, uid_shift, (gid_t) uid_shift, 0755);
                         if (r < 0 && r != -EROFS)
                                 return r;