Re: [PATCH] get_sha1: support relative path "<obj>:<sth>" syntax

Nguyễn Thái Ngọc Duy  [off-list ref] writes:

 		if (namelen < 3 ||
 		    name[2] != ':' ||
-		    name[1] < '0' || '3' < name[1])
+		    name[1] < '0' || '3' < name[1]) {
 			cp = name + 1;
+			if (startup_info && cp[0] == '.' &&
+			    (cp[1] == '/' || (cp[1] == '.' && cp[2] == '/'))) {
+				new_path = prefix_path(startup_info->prefix,
+						       strlen(startup_info->prefix),
+						       cp);
+				cp = new_path;
+			}
+		}

What does this new codepath do when we know where the working tree is and
we are outside of the working tree (e.g. we are looking at the index or a
commit in a submodule from above the superproject)?

What should it do?