Megatest

;;======================================================================
;; Copyright 2006-2012, Matthew Welland.
;; 
;;  This program is made available under the GNU GPL version 2.0 or
;;  greater. See the accompanying file COPYING for details.
;; 
;;  This program is distributed WITHOUT ANY WARRANTY; without even the
;;  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;;  PURPOSE.
;;======================================================================

(use sqlite3 srfi-1 posix regex-case base64 format dot-locking csv-xml posix-extras)
(require-extension sqlite3 regex posix)

(require-extension (srfi 18) extras tcp rpc)

(import (prefix sqlite3 sqlite3:))
(import (prefix base64 base64:))

	 (cpu-load #f))
    (for-each (lambda (l)
		(let ((match (string-search load-rx l)))
		  (if match
		      (let ((newval (string->number (cadr match))))
			(if (number? newval)
			    (set! cpu-load newval))))))
              (car load-res))
    cpu-load))

(define (get-uname . params)
  (let* ((uname-res (cmd-run->list (conc "uname " (if (null? params) "-a" (car params)))))
	 (uname #f))
    (if (null? (car uname-res))
	"unknown"
	(caar uname-res))))
	      
;; filter is a list of vars to not save
;; override is an alist of vars value pairs to override
(define (save-environment-as-files fname #!key (flst '())(overrides '()))
  (let ((envvars (get-environment-variables))
        (whitesp (regexp "[^a-zA-Z0-9_\\-:;,.\\/%$]"))
	(cshport (open-output-file (conc fname ".csh")))

	(bshport (open-output-file (conc fname ".sh"))))
    (for-each (lambda (key)
		(let* ((val (cdr key))
		       (var (car key))
		       (sval (if (assoc var overrides)
				 (cadr (assoc var overrides))
				 (if (string-search whitesp val)(conc "\"" val "\"") val))))
		  (if (not (member var flst))
		      (begin
			(with-output-to-port cshport
			  (lambda ()
			    (print "setenv " (car key) " " sval)))

			(with-output-to-port bshport
			  (lambda ()



			    (print "export " (car key) "=" sval)))))))
	      envvars)))

;; set some env vars from an alist, return an alist with original values
;; (("VAR" "value") ...)
(define (alist->env-vars lst)
  (if (list? lst)
      (let ((res '()))
	(for-each (lambda (p)

	  (set-megatest-env-vars db run-id) ;; these may be needed by the launching process
	  (change-directory work-area) 
	  (set-run-config-vars db run-id)
	  ;; environment overrides are done *before* the remaining critical envars.
	  (alist->env-vars env-ovrd)
	  (set-megatest-env-vars db run-id)
	  (set-item-env-vars itemdat)
	  (save-environment-as-files "megatest" 
				     flst:      '("DISPLAY")
				     overrides: (if (config-lookup *configdat* "setup" "homedir")
						    (list (list "HOME" (config-lookup *configdat* "setup" "homedir"))
						    (list (list "HOME" work-area)))))
	  (test-set-meta-info db run-id test-name itemdat)
	  (test-set-status! db test-id "REMOTEHOSTSTART" "n/a" (args:get-arg "-m") #f)
	  (if (args:get-arg "-xterm")
	      (set! fullrunscript "xterm")
	      (if (and fullrunscript (not (file-execute-access? fullrunscript)))
		  (system (conc "chmod ug+x " fullrunscript))))
	  ;; We are about to actually kick off the test

  ;; pass on that idea for now.
  (set! *configinfo* (find-and-read-config (if (args:get-arg "-config")(args:get-arg "-config") "megatest.config") environ-patt: "env-override"))
  (set! *configdat*  (if (car *configinfo*)(car *configinfo*) #f))
  (set! *toppath*    (if (car *configinfo*)(cadr *configinfo*) #f))
  (if *toppath*
      (setenv "MT_RUN_AREA_HOME" *toppath*) ;; to be deprecated
      (debug:print 0 "ERROR: failed to find the top path to your run setup."))
  ;; here we extract the path to the megatest executable and append it to the path
  (let ((path (pathname-directory (car (argv)))))
    (if path
	(setenv "PATH" (conc
			(get-environment-variable "PATH")
			":"
			(posix-extras#resolve-pathname path)))))
  *toppath*)

(define (get-best-disk confdat)
  (let* ((disks    (hash-table-ref/default confdat "disks" #f))
	 (best     #f)
	 (bestsize 0))
    (if disks 

[setup]
# exectutable /path/to/megatest
max_concurrent_jobs 200
linktree /tmp/mt_links
# homedir overrides the $HOME environment variable. 
# if unset $HOME is set to the test run dir ($MT_TEST_RUN_DIR)
# use #{getenv HOME} to use the normal Unix home
# homedir #{getenv HOME}

[jobtools]
useshell yes
# ## launcher launches jobs, the job is managed on the target host
## by megatest, comment out launcher to run local
# workhosts localhost hermes
launcher nbfake