Megatest

         "-show-runconfig"
         "-show-config"
         "-show-cmdinfo"
	 "-cleanup-db"))
       (no-watchdog-args-vals (filter (lambda (x) x)
                                      (map args:get-arg no-watchdog-args)))
       (start-watchdog (null? no-watchdog-args-vals)))
       ;;(print  "no-watchdog-args="no-watchdog-args "no-watchdog-args-vals="no-watchdog-args-vals " start-watchdog-specail-arg-val:" start-watchdog-specail-arg-val " start-watchdog:" start-watchdog) 
  ;;(BB> "no-watchdog-args="no-watchdog-args "no-watchdog-args-vals="no-watchdog-args-vals) 
  (if start-watchdog
      (thread-start! *watchdog*)))


;; bracket open-output-file with code to make leading directory if it does not exist and handle exceptions
(define (open-logfile logpath-in)

(let ((envcap (args:get-arg "-envcap")))
  (if envcap
      (let* ((db      (env:open-db (if (null? remargs) "envdat.db" (car remargs)))))
	(env:save-env-vars db envcap)
	(env:close-database db)
	(set! *didsomething* #t))))

;; delta "language" will eventually be res=a+b-c but for now it is just res=a-b
;;
;; db file can be stuck on the end of the command line:
;;   megatest -envdelta start-end -dumpmode bash -o .ezsteps/step5.sh /tmp/myfile.db 
;;
(let ((envdelta (args:get-arg "-envdelta")))
  (if envdelta
      (let ((match (string-split envdelta "-")));; (string-match "([a-z0-9_]+)=([a-z0-9_\\-,]+)" envdelta)))
	(if (not (null? match))
	    (let* ((db        (env:open-db (if (null? remargs) "envdat.db" (car remargs))))
		   ;; (resctx    (cadr match))