Improve error message if regress operation fails due to Security Violation.

git-svn-id: http://svn.savannah.nongnu.org/svn/rdiff-backup@1018 2b77aa54-bcbc-44c9-a7ec-4f6cf2b41109

trunk/rdiff-backup/CHANGELOG

 New in v1.3.2 (????/??/??)
 ---------------------------
 
-
+Improve error message if regress operation fails due to Security Violation.
+Thanks to Grzegorz Marszalek for the bug report. (Andrew Ferguson)
 
 
 New in v1.3.1 (2009/01/27)

trunk/rdiff-backup/rdiff_backup/Main.py

@@ -919,4 +919,9 @@ def checkdest_if_necessary(dest_rp):
 	if need_check == 1:
 		Log("Previous backup seems to have failed, regressing "
 			"destination now.", 2)
-		dest_rp.conn.regress.Regress(dest_rp)
+		try:
+			dest_rp.conn.regress.Regress(dest_rp)
+		except Security.Violation:
+			Log.FatalError("Security violation while attempting to regress "
+						   "destination, perhaps due to --restrict-read-only "
+						   "or --restrict-update-only.")