auto-backup: libardour part. (from mixbus)

[ardour.git] / libs / ardour / session_state.cc

diff --git a/libs/ardour/session_state.cc b/libs/ardour/session_state.cc
index b27a292642a21db84a42b62b7461bb1ac959f2b0..6eb06d8c356abb6ba7edc3a76f6cec65d639c54f 100644 (file)
--- a/libs/ardour/session_state.cc
+++ b/libs/ardour/session_state.cc
@@ -749,6 +749,8 @@ Session::remove_state (string snapshot_name)
                error << string_compose(_("Could not remove session file at path \"%1\" (%2)"),
                                xml_path, g_strerror (errno)) << endmsg;
        }
+
+       StateSaved (snapshot_name); /* EMIT SIGNAL */
 }
 
 /** @param snapshot_name Name to save under, without .ardour / .pending prefix */
@@ -873,6 +875,32 @@ Session::save_state (string snapshot_name, bool pending, bool switch_to_snapshot
                }
        }
 
+       //Mixbus auto-backup mechanism
+       if(Profile->get_mixbus()) {
+               if (pending) {  //"pending" save means it's a backup, or some other non-user-initiated save;  a good time to make a backup
+                       // make a serialized safety backup
+                       // (will make one periodically but only one per hour is left on disk)
+                       // these backup files go into a separated folder
+                       char timebuf[128];
+                       time_t n;
+                       struct tm local_time;
+                       time (&n);
+                       localtime_r (&n, &local_time);
+                       strftime (timebuf, sizeof(timebuf), "%y-%m-%d.%H", &local_time);
+                       std::string save_path(session_directory().backup_path());
+                       save_path += G_DIR_SEPARATOR;
+                       save_path += legalize_for_path(_current_snapshot_name);
+                       save_path += "-";
+                       save_path += timebuf;
+                       save_path += statefile_suffix;
+                       if ( !tree.write (save_path) )
+                                       error << string_compose(_("Could not save backup file at path \"%1\" (%2)"),
+                                                       save_path, g_strerror (errno)) << endmsg;
+               }
+
+               StateSaved (snapshot_name); /* EMIT SIGNAL */
+       }
+
        if (!pending && !for_archive) {
 
                save_history (snapshot_name);