Megatest

	 (toptest-work-area #f) ;; for iterated tests the top test contains data relevant for all
	 (diskpath   #f)
	 (cmdparms   #f)
	 (fullcmd    #f) ;; (define a (with-output-to-string (lambda ()(write x))))
	 (mt-bindir-path #f)
	 (item-path (item-list->path itemdat))
	 (testinfo   (rdb:get-test-info db run-id test-name item-path))
	 (test-id    (db:test-get-id testinfo)))
	 (test-id    (db:test-get-id testinfo))
	 (debug-param (if (args:get-arg "-debug")(list "-debug" (args:get-arg "-debug")) '())))
  (if hosts (set! hosts (string-split hosts)))
    ;; set the megatest to be called on the remote host
    (if (not remote-megatest)(set! remote-megatest local-megatest)) ;; "megatest"))
    (set! mt-bindir-path (pathname-directory remote-megatest))
    (if launcher (set! launcher (string-split launcher)))
    ;; set up the run work area for this test
    (set! diskpath (get-best-disk *configdat*))

						   (list 'runname   runname)
						   (list 'mt-bindir-path mt-bindir-path))))))) ;; (string-intersperse keyvallst " "))))
    ;; clean out step records from previous run if they exist
    (db:delete-test-step-records db run-id test-name itemdat)
    (change-directory work-area) ;; so that log files from the launch process don't clutter the test dir
    (cond
     ((and launcher hosts) ;; must be using ssh hostname
      (set! fullcmd (append launcher (car hosts)(list remote-megatest test-sig "-execute" cmdparms) debug-param)))
      (set! fullcmd (append launcher (car hosts)(list remote-megatest test-sig "-execute" cmdparms))))
      ;; (set! fullcmd (append launcher (car hosts)(list remote-megatest test-sig "-execute" cmdparms))))
     (launcher
      (set! fullcmd (append launcher (list remote-megatest test-sig "-execute" cmdparms) debug-param)))
      (set! fullcmd (append launcher (list remote-megatest test-sig "-execute" cmdparms))))
      ;; (set! fullcmd (append launcher (list remote-megatest test-sig "-execute" cmdparms))))
     (else
      (if (not useshell)(debug:print 0 "WARNING: internal launching will not work well without \"useshell yes\" in your [jobtools] section"))
      (set! fullcmd (append (list remote-megatest test-sig "-execute" cmdparms) debug-param (list (if useshell "&" ""))))))
      (set! fullcmd (list remote-megatest test-sig "-execute" cmdparms (if useshell "&" "")))))
      ;; (set! fullcmd (list remote-megatest test-sig "-execute" cmdparms (if useshell "&" "")))))
    (if (args:get-arg "-xterm")(set! fullcmd (append fullcmd (list "-xterm"))))
    (debug:print 1 "Launching megatest for test " test-name " in " work-area" ...")
    (test-set-status! db test-id "LAUNCHED" "n/a" #f #f) ;; (if launch-results launch-results "FAILED"))
    ;; set pre-launch-env-vars before launching, keep the vars in prevvals and put the envionment back when done
    (debug:print 4 "fullcmd: " fullcmd)
    (let* ((commonprevvals (alist->env-vars
			    (hash-table-ref/default *configdat* "env-override" '())))