commit: allow associating auxiliary info on-demand

diff --git a/copy.c b/copy.c
index e54d15aced7595ccb11423b0de121db9051ad1f3..a7f58fd905b31b2634f74580090ec664a640e279 100644 (file)
--- a/copy.c
+++ b/copy.c
@@ -35,6 +35,19 @@ int copy_fd(int ifd, int ofd)
        return 0;
 }
 
+static int copy_times(const char *dst, const char *src)
+{
+       struct stat st;
+       struct utimbuf times;
+       if (stat(src, &st) < 0)
+               return -1;
+       times.actime = st.st_atime;
+       times.modtime = st.st_mtime;
+       if (utime(dst, &times) < 0)
+               return -1;
+       return 0;
+}
+
 int copy_file(const char *dst, const char *src, int mode)
 {
        int fdi, fdo, status;
@@ -55,3 +68,11 @@ int copy_file(const char *dst, const char *src, int mode)
 
        return status;
 }
+
+int copy_file_with_time(const char *dst, const char *src, int mode)
+{
+       int status = copy_file(dst, src, mode);
+       if (!status)
+               return copy_times(dst, src);
+       return status;
+}