Add persistent logging: syslog for unix, file for windows (#6)

persistentlog/syslog.go

@@ -0,0 +1,21 @@
+// +build !windows,!nacl,!plan9
+
+package persistentlog
+
+import (
+	"log/syslog"
+
+	log "github.com/sirupsen/logrus"
+	logSyslog "github.com/sirupsen/logrus/hooks/syslog"
+)
+
+// AddPersistentLogHook configures persisting logs in syslog
+func AddPersistentLogHook() {
+	hook, err := logSyslog.NewSyslogHook("", "", syslog.LOG_INFO, "browserpass")
+
+	if err == nil {
+		log.AddHook(hook)
+	} else {
+		log.Warn("Unable to connect to syslog, logs will NOT be persisted")
+	}
+}