From: Arvin Schnell <aschnell@suse.de>
Date: Thu, 6 Sep 2012 13:57:57 +0000 (+0200)
Subject: - disallow post snapshots with pre snapshots that already have a post snapshot
X-Git-Tag: v0.1.3~107
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=082b73820ca9f950cff74470094618f496bfaacd;p=thirdparty%2Fsnapper.git

- disallow post snapshots with pre snapshots that already have a post snapshot
---

diff --git a/snapper/Snapshot.cc b/snapper/Snapshot.cc
index a4a9ceb9..a3a2a271 100644
--- a/snapper/Snapshot.cc
+++ b/snapper/Snapshot.cc
@@ -530,7 +530,8 @@ namespace snapper
     Snapshots::iterator
     Snapshots::createPostSnapshot(string description, Snapshots::const_iterator pre)
     {
-	if (pre == entries.end() || pre->isCurrent() || pre->getType() != PRE)
+	if (pre == entries.end() || pre->isCurrent() || pre->getType() != PRE ||
+	    findPost(pre) != entries.end())
 	    throw IllegalSnapshotException();
 
 	Snapshot snapshot(snapper, POST, nextNumber(), time(NULL));