Treat Windows drive paths as local copy endpoints

src/file_transfer.rs

@@ -263,10 +263,7 @@ pub fn ensure_relative_child(path: &Path) -> Result<String> {
 
 fn looks_like_windows_path(raw: &str) -> bool {
     let bytes = raw.as_bytes();
-    bytes.len() >= 3
+    bytes.len() >= 2 && bytes[0].is_ascii_alphabetic() && bytes[1] == b':'
-        && bytes[0].is_ascii_alphabetic()
-        && bytes[1] == b':'
-        && (bytes[2] == b'\\' || bytes[2] == b'/')
 }
 
 #[cfg(test)]
@@ -314,6 +311,14 @@ mod tests {
             parse_copy_endpoint("C:\\Users\\palav\\x"),
             CopyEndpoint::Local(PathBuf::from("C:\\Users\\palav\\x"))
         );
+        assert_eq!(
+            parse_copy_endpoint("C:/Users/palav/x"),
+            CopyEndpoint::Local(PathBuf::from("C:/Users/palav/x"))
+        );
+        assert_eq!(
+            parse_copy_endpoint("C:relative\\x"),
+            CopyEndpoint::Local(PathBuf::from("C:relative\\x"))
+        );
     }
 
     #[test]