Megatest

	 (target   (common:args-get-target))
	 (linktree (common:get-linktree))
	 (sections (if target (list "default" target) #f)) ;; for runconfigs
	 (mtconfig (or (args:get-arg "-config") "megatest.config")) ;; allow overriding megatest.config 
	 (rundir   (if (and runname target linktree)(conc linktree "/" target "/" runname) #f))
	 (mtcachef (and rundir (conc rundir "/" ".megatest.cfg-"  megatest-version "-" megatest-fossil-hash)))
	 (rccachef (and rundir (conc rundir "/" ".runconfigs.cfg-"  megatest-version "-" megatest-fossil-hash)))
	 (cancreate (and rundir (file-exists? rundir)(file-write-access? rundir)))
	 (cancreate (and rundir (common:file-exists? rundir)(file-write-access? rundir)))
         (cxt       (hash-table-ref/default *contexts* toppath #f)))

    ;; create our cxt for this area if it doesn't already exist
    (if (not cxt)(hash-table-set! *contexts* toppath (make-cxt)))

    ;; (print "runname: " runname " target: " target " mtcachef: " mtcachef " rccachef: " rccachef)
    (set! *toppath* toppath) ;; This is needed when we are running as a test using CMDINFO as a datasource
    (cond
     ;; data was read and cached and available in *configstatus*, toppath has already been set
     ((eq? *configstatus* 'fulldata)
      *toppath*)
     ;; if mtcachef exists just read it, however we need to assume toppath is available in $MT_RUN_AREA_HOME
     ((and mtcachef (file-exists? mtcachef) (get-environment-variable "MT_RUN_AREA_HOME") use-cache)
     ((and mtcachef (common:file-exists? mtcachef) (get-environment-variable "MT_RUN_AREA_HOME") use-cache)
      (set! *configdat*    (configf:read-alist mtcachef))
      (set! *runconfigdat* (configf:read-alist rccachef))
      (set! *configinfo*   (list *configdat*  (get-environment-variable "MT_RUN_AREA_HOME")))
      (set! *configstatus* 'fulldata)
      (set! *toppath*      (get-environment-variable "MT_RUN_AREA_HOME"))
      *toppath*)
     ;; we have all the info needed to fully process runconfigs and megatest.config

	      (debug:print-error 0 *default-log-port* "No " mtconfig " file found. Giving up.")
	      (exit 2))))))
    ;; additional house keeping
    (let* ((linktree (or (getenv "MT_LINKTREE")
			 (if *configdat* (configf:lookup *configdat* "setup" "linktree") #f))))
      (if linktree
	  (begin
	    (if (not (file-exists? linktree))
	    (if (not (common:file-exists? linktree))
		(begin
		  (handle-exceptions
		   exn
		   (begin
		     (debug:print-error 0 *default-log-port* "Something went wrong when trying to create linktree dir at " linktree)
		     (debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
		     (exit 1))

	 (lnktarget (conc lnkpath "/" item-path)))

    ;; Update the rundir path in the test record for all, rundir=physical, shortdir=logical
    ;;                                                 rundir   shortdir
    (rmt:general-call 'test-set-rundir-shortdir run-id lnkpathf test-path testname item-path run-id)

    (debug:print 2 *default-log-port* "INFO:\n       lnkbase=" lnkbase "\n       lnkpath=" lnkpath "\n  toptest-path=" toptest-path "\n     test-path=" test-path)
    (if (not (file-exists? linktree))
    (if (not (common:file-exists? linktree))
	(begin
	  (debug:print 0 *default-log-port* "WARNING: linktree did not exist! Creating it now at " linktree)
	  (create-directory linktree #t))) ;; (system (conc "mkdir -p " linktree))))
    ;; create the directory for the tests dir links, this is needed no matter what...
    (if (and (not (directory-exists? lnkbase))
	     (not (file-exists? lnkbase)))
    (if (and (not (common:directory-exists? lnkbase))
	     (not (common:file-exists? lnkbase)))
	(handle-exceptions
	 exn
	 (begin
	   (debug:print-error 0 *default-log-port* "Problem creating linktree base at " lnkbase)
	   (print-error-message exn (current-error-port)))
	 (create-directory lnkbase #t)))