Megatest

	  ;; srfi-13
	  srfi-69
	  ports
	  extras
	  regex
	  posix
	  data-structures
	  matchable
	  )

(define (mutils:hierhash-ref hh . keys)
  (if (null? keys)
      #f
      (let loop ((ht   hh)
		 (key  (car keys))

	  (begin
	    (with-output-to-file fname
	      (lambda ()
		(print "You can delete this file")))
	    (delete-file fname)
	    #t)))))

(define (run-and-return-output cmd . params)
  (let-values (((inp oup pid)
		(process cmd params)))
    (let ((res (with-input-from-port inp read-lines)))
      (let-values (((pidres status estatus)
		    (process-wait pid)))
	(and status (eq? estatus 0) res)))))

(define (confirm-ssh-access-to-host hostname)
  (run-and-return-output "ssh" hostname "uptime"))

(define (check-display dsp)
  (run-and-return-output "xdpyinfo" "-display" dsp))

#;(define (check-display dsp)
  (let-values (((inp oup pid)
		(process "xdpyinfo" `("-display" ,dsp))))
    (let ((res (with-input-from-port inp read-lines)))
      (let-values (((pidres status estatus)
		    (process-wait pid)))
	(and status (eq? estatus 0) res)))))

;; do some sanity checks on the system
;;
(define (mutils:syscheck common:raw-get-remote-host-load
			 server:get-best-guess-address
			 read-config)
  ;; current dir writeable and do megatest.config, runconfigs.config files exist/readable
  (print "Current directory " (current-directory) " writeable: " 
	 (if (check-write-create ".") "yes" "NO"))
  ;; home dir writeable
  (print "Home directory " (get-environment-variable "HOME") " writeable: "
	 (if (check-write-create (get-environment-variable "HOME")) "yes" "NO"))
  ;; /tmp writeable
  (print "/tmp directory writeable: " (if (check-write-create "/tmp") "yes" "NO"))
  ;; load configs
  (print "$DISPLAY set: " (if (get-environment-variable "DISPLAY")
			      (conc  (get-environment-variable "DISPLAY") " yes")
			      "NO"))

  (print "$DISPLAY accessible? "
	  ;; (eq? (system "xdpyinfo -display $DISPLAY &>/dev/null") 0)
	 (if (check-display (get-environment-variable "DISPLAY"))
	     "yes" "NO"))

  (print "Password-less ssh access to localhost: "
	 (if  (confirm-ssh-access-to-host "localhost")
	      "yes"
	      "NO"))

  ;; if I'm in a Megatest area do some checks
  (print "Have megatest.config: "
	 (if (file-exists? "megatest.config")
	     "yes"
	     "NO"))

  (print "Have runconfigs.config: "
	 (if (file-exists? "runconfigs.config")
	     "yes"
	     "NO"))

  (if (file-exists? ".homehost")
      (let* ((homehost (with-input-from-file ".homehost"
			 read-line))
	     (currhost (get-host-name))
	     (bestadrs (server:get-best-guess-address currhost)))
	(print "Have .homehost and it is the localhost: "
	       (if (equal? homehost bestadrs)
		   "yes"
		   (conc ".homehost=" homehost ", localhost=" bestadrs ", NO")))
	(print "Have .homehost and it is reachable via ssh: "
	       (if (confirm-ssh-access-to-host homehost)
		   "yes"
		   "NO"))
	))

  (if (file-exists? "megatest.config")
      (let* ((cdat (read-config "megatest.config" #f #f)))
	(print "Have [disks] section: "
	       (if (hash-table-ref/default cdat "disks" #f)
		   (conc (hash-table-ref cdat "disks") " yes")
		   "NO"))
	(for-each
	 (lambda (entry)
	   (match
	    entry
	    ((dname path)
	     (print "Disk " dname " at " path " writeable: "
		    (if (check-write-create path) "yes" "NO")))
	    (else (print "bad entry: " entry))))
	 (hash-table-ref/default cdat "disks" '()))))
	
  ;;    check load on homehost
  ;;    each run disk read/write
  ;;    link tree writeable
  )
  
)