From 947d73eeb663d08ead88bc777a5a75e02fcc4cb1 Mon Sep 17 00:00:00 2001
From: ed <s@ocv.me>
Date: Wed, 16 Sep 2026 22:35:11 +0000
Subject: [PATCH] check xlink on copy

---
 copyparty/up2k.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/copyparty/up2k.py b/copyparty/up2k.py
index d7b8c3ac5..32aa2af60 100644
--- a/copyparty/up2k.py
+++ b/copyparty/up2k.py
@@ -4667,6 +4667,12 @@ class Up2k(object):
             self.log("not found in src db: %r" % (svp,))
 
         try:
+            if svn_dbv != dvn and not (
+                "xlink" in dvn.flags
+                or "reflink" in dvn.flags
+                or "hardlinkonly" in dvn.flags
+            ):
+                raise OSError(errno.EXDEV, "different volumes")
             if is_link and st != stl:
                 # relink non-broken symlinks to still work after the move,
                 # but only resolve 1st level to maintain relativity