Copy config.xml and cinemas.xml if they fail to load so data is not lost.

2 files changed, 11 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 178601665..b1ffde15b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2017-04-26  Carl Hetherington  <cth@carlh.net>
+
+	* Make a copy of the configuration, if it fails to load, before making new defaults.
+
 2017-04-07  Carl Hetherington  <cth@carlh.net>
 
 	* Make jump-to-content-start on selection in the content list
diff --git a/src/lib/config.cc b/src/lib/config.cc
index 01a67522f..10bee140c 100644
--- a/src/lib/config.cc
+++ b/src/lib/config.cc
@@ -323,6 +323,13 @@ try
 }
 catch (...) {
 	if (have_existing ("config.xml")) {
+
+		/* Make a copy of the configuration */
+		try {
+			boost::filesystem::copy (path ("config.xml", false), path ("config.xml.backup", false));
+			boost::filesystem::copy (path ("cinemas.xml", false), path ("cinemas.xml.backup", false));
+		} catch (...) {}
+
 		/* We have a config file but it didn't load */
 		FailedToLoad ();
 	}