gitea dump: include version & Check InstallLock (#12760) (#12762)

* gitea dump: include version

* Check InstallLock

cmd/dump.go

@@ -66,6 +66,10 @@ func fatal(format string, args ...interface{}) {
 
 func runDump(ctx *cli.Context) error {
 	setting.NewContext()
+	if !setting.InstallLock {
+		log.Error("Is '%s' really the right config path?\n", setting.CustomConf)
+		return fmt.Errorf("gitea is not initialized")
+	}
 	setting.NewServices() // cannot access session settings otherwise
 
 	err := models.SetEngine()