From: Cheng-Ling Lai <jamesljlster@gmail.com>
Date: Thu, 5 Feb 2026 01:30:23 +0000 (+0800)
Subject: Prevent manually transferring a read‑write snapshot
X-Git-Tag: v0.13.1~33^2
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=refs%2Fpull%2F1101%2Fhead;p=thirdparty%2Fsnapper.git

Prevent manually transferring a read‑write snapshot
---

diff --git a/client/snbk/TheBigThing.cc b/client/snbk/TheBigThing.cc
index 8ab6a2d5..9a7b8e46 100644
--- a/client/snbk/TheBigThing.cc
+++ b/client/snbk/TheBigThing.cc
@@ -250,6 +250,8 @@ namespace snapper
 
 	if (source_state == SourceState::MISSING)
 	    SN_THROW(Exception(_("Snapshot not on source.")));
+	else if (source_state == SourceState::READ_WRITE)
+	    SN_THROW(Exception(_("Cannot transfer a read-write snapshot.")));
 
 	if (target_state != TargetState::MISSING)
 	    SN_THROW(Exception(_("Snapshot already on target.")));