Megatest

$(PREFIX)/bin/mt_xterm : utils/mt_xterm
	$(INSTALL) $< $@
	chmod a+x $@

$(PREFIX)/bin/nbfake : utils/nbfake
	$(INSTALL) $< $@
	chmod a+x $@

$(PREFIX)/bin/remrun : utils/remrun
	$(INSTALL) $< $@
	chmod a+x $@

$(PREFIX)/bin/viewscreen : utils/viewscreen
	$(INSTALL) $< $@
	chmod a+x $@

$(PREFIX)/bin/nbfind : utils/nbfind
	$(INSTALL) $< $@

	utils/mk_wrapper $(PREFIX) dboard $(PREFIX)/bin/dashboard
	chmod a+x $(PREFIX)/bin/dashboard
	$(INSTALL) dboard $(PREFIX)/bin/.$(ARCHSTR)/dboard

install : $(PREFIX)/bin/.$(ARCHSTR) $(PREFIX)/bin/.$(ARCHSTR)/mtest $(PREFIX)/bin/megatest \
          $(PREFIX)/bin/.$(ARCHSTR)/dboard $(PREFIX)/bin/dashboard $(HELPERS) $(PREFIX)/bin/nbfake \
	  $(PREFIX)/bin/nbfind $(PREFIX)/bin/loadrunner $(PREFIX)/bin/viewscreen $(PREFIX)/bin/mt_xterm \
	  $(PREFIX)/share/docs/megatest_manual.html 
	  $(PREFIX)/share/docs/megatest_manual.html $(PREFIX)/bin/remrun

$(PREFIX)/bin/.$(ARCHSTR) : 
	mkdir -p $(PREFIX)/bin/.$(ARCHSTR)

test: tests/tests.scm
	cd tests;csi -I .. -b -n tests.scm

#	for i in apropos base64 canvas-draw csv-xml directory-utils dot-locking extras fmt format hostinfo http-client intarweb json md5 message-digest posix posix-extras readline regex regex-case s11n spiffy spiffy-request-vars sqlite3 srfi-1 srfi-18 srfi-69 tcp test uri-common check-errors synch matchable sql-null tcp-server rpc blob-utils string-utils variable-item defstruct uri-generic sendfile opensll openssl lookup-table list-utils stack; do \
#	chicken-install -prefix deploytarg -deploy $$i;done

# deploytarg/libsqlite3.so : 
# 	CSC_OPTIONS="-Ideploytarg -Ldeploytarg" $CHICKEN_INSTALL -prefix deploytarg -deploy sqlite3

deploy : deploytarg/mtest deploytarg/dboard $(DEPLOYHELPERS) deploytarg/nbfake deploytarg/viewsceen deploytarg/nbfind deploytarg/apropos.so
deploy : deploytarg/mtest deploytarg/dboard $(DEPLOYHELPERS) deploytarg/nbfake deploytarg/remrun deploytarg/viewsceen deploytarg/nbfind deploytarg/apropos.so

# deploytarg/libiupcd.so : $(CKPATH)/lib/libiupcd.so
# 	for i in iup im cd av call sqlite; do \
# 	  cp $(CKPATH)/lib/lib$$i* deploytarg/ ; \
# 	done
# 	cp $(CKPATH)/include/*.h deploytarg

(define *keys*              (make-hash-table)) ;; cache the keys here
(define *keyvals*           (make-hash-table))
(define *toptest-paths*     (make-hash-table)) ;; cache toptest path settings here
(define *test-paths*        (make-hash-table)) ;; cache test-id to test run paths here
(define *test-ids*          (make-hash-table)) ;; cache run-id, testname, and item-path => test-id
(define *test-info*         (make-hash-table)) ;; cache the test info records, update the state, status, run_duration etc. from testdat.db

(define *run-info-cache*    (make-hash-table)) ;; run info is stable, no need to reget
(define *run-info-cache*     (make-hash-table)) ;; run info is stable, no need to reget
(define *launch-setup-mutex* (make-mutex))     ;; need to be able to call launch:setup often so mutex it and re-call the real deal only if *toppath* not set
(define *homehost-mutex*     (make-mutex))

;; launching and hosts
(defstruct host
  (reachable    #f)
  (last-update  0)
  (last-used    0)
  (last-cpuload 1))

(define *host-loads*         (make-hash-table))

;; cache environment vars for each run here
(define *env-vars-by-run-id* (make-hash-table))

;; Testconfig and runconfig caches. 
(define *testconfigs*       (make-hash-table)) ;; test-name => testconfig
(define *runconfigs*        (make-hash-table)) ;; target    => runconfig
(define *testconfigs*        (make-hash-table)) ;; test-name => testconfig
(define *runconfigs*         (make-hash-table)) ;; target    => runconfig

;; This is a cache of pre-reqs met, don't re-calc in cases where called with same params less than
;; five seconds ago
(define *pre-reqs-met-cache* (make-hash-table))

;; cache of verbosity given string
;;
(define *verbosity-cache* (make-hash-table))
(define *verbosity-cache*    (make-hash-table))

(define (common:clear-caches)
  (set! *target*             (make-hash-table))
  (set! *keys*               (make-hash-table))
  (set! *keyvals*            (make-hash-table))
  (set! *toptest-paths*      (make-hash-table))
  (set! *test-paths*         (make-hash-table))

               (proc-rx  ( x p         ) (loop (car tal)(cdr tal) loads           (max-num p proc-num) phys-num core-num))
               (phys-rx  ( x p         ) (loop (car tal)(cdr tal) loads           proc-num (max-num p phys-num) core-num))
               (core-rx  ( x c         ) (loop (car tal)(cdr tal) loads           proc-num phys-num (max-num c core-num)))
               (else 
                (begin
                  ;; (print "NO MATCH: " hed)
                  (loop (car tal)(cdr tal) loads proc-num phys-num core-num)))))))))

(define (common:unix-ping hostname)
  (let ((res (system (conc "ping -c 1 " hostname " > /dev/null"))))
    (eq? res 0)))

;; ideally put all this info into the db, no need to preserve it across moving homehost
;;
(define (common:get-least-loaded-host hosts)
  (if (null? hosts)
      #f
      ;;
      ;; stategy:
      ;;    sort by last-used and normalized-load
      ;;    if last-updated > 15 seconds then re-update
      ;;    take the host with the lowest load with the lowest last-used (i.e. not used for longest time)
      ;;
      (let ((best-host #f)
	    (curr-time (current-seconds)))
	(for-each
	 (lambda (hostname)
	   (let* ((rec       (let ((h (hash-table-ref/default *host-loads* hostname #f)))
			       (if h
				   h
				   (let ((h (make-host)))
				     (hash-table-set! *host-loads* hostname h)
				     h))))
		  ;; if host hasn't been pinged in 15 sec update it's data
		  (ping-good (if (< (- curr-time (host-last-update rec)) 15)
				 (host-reachable rec)
				 (or (host-reachable rec)
				     (begin
				       (host-reachable-set! rec (common:unix-ping hostname))
				       (host-last-update-set! rec curr-time)
				       (host-last-cpuload-set! rec (common:get-normalized-cpu-load hostname))
				       (host-reachable rec))))))
	     (cond
	      ((not best-host)
	       (set! best-host hostname))
	      ((and ping-good
		    (< (alist-ref 'adj-core-load (host-last-cpuload rec))
		       (alist-ref 'adj-core-load
				  (host-last-cpuload (hash-table-ref *host-loads* best-host)))))
	       (set! best-host rec)))))
	 hosts)
	best-host)))

(define (common:wait-for-cpuload maxload numcpus waitdelay #!key (count 1000) (msg #f)(remote-host #f))
  (let* ((loadavg (common:get-cpu-load remote-host))
	 (first   (car loadavg))
	 (next    (cadr loadavg))
	 (adjload (* maxload numcpus))
	 (loadjmp (- first next)))

    (query fetch-column
	   (sql db "SELECT ipaddr || ':' || portnum FROM dashboards;"))))
    
;;======================================================================
;;  T E S T   L A U N C H I N G   P E R   I T E M   W I T H   H O S T   T Y P E S
;;======================================================================
;; 
;; [host-types]
;; general ssh #{getbgesthost general}
;; nbgeneral nbjob run JOBCOMMAND -log $MT_LINKTREE/$MT_TARGET/$MT_RUNNAME.$MT_TESTNAME-$MT_ITEM_PATH.lgo
;; [hosts]
;; arm cubie01 cubie02
;; x86_64 zeus xena myth01
;; allhosts #{g hosts arm} #{g hosts x86_64}
;; 
;; [hosts]
;; general cubian xena
;; [host-types]
;; general #MTLOWESTLOAD #{g hosts allhosts}
;; arm     #MTLOWESTLOAD #{g hosts arm}
;; nbgeneral nbjob run JOBCOMMAND -log $MT_LINKTREE/$MT_TARGET/$MT_RUNNAME.$MT_TESTNAME-$MT_ITEM_PATH.lgo
;; 
;; [launchers]
;; envsetup general
;; xor/%/n 4C16G
;; % nbgeneral
;; 
;; [jobtools]
;; launcher bsub
;; # if defined and not "no" flexi-launcher will bypass launcher unless there is no
;; # if defined and not "no" flexi-launcher will bypass "launcher" unless no match.
;; # match.
;; flexi-launcher yes  

;; launcher nbfake
;;
(define (common:get-launcher configdat testname itempath)
  (let ((fallback-launcher (configf:lookup configdat "jobtools" "launcher")))
    (if (and (configf:lookup configdat "jobtools" "flexi-launcher") ;; overrides launcher
	     (not (equal? (configf:lookup configdat "jobtools" "flexi-launcher") "no")))
	(let* ((launchers         (hash-table-ref/default configdat "launchers" '())))
	  (if (null? launchers)
	      fallback-launcher
	      (let loop ((hed (car launchers))
			 (tal (cdr launchers)))
		(let ((patt      (car hed))
		      (host-type (cadr hed)))
		  (if (tests:match patt testname itempath)
		      (begin
			(debug:print-info 2 *default-log-port* "Have flexi-launcher match for " testname "/" itempath " = " host-type)
			(let ((launcher (configf:lookup configdat "host-types" host-type)))
			  (if launcher
			      (let* ((launcher-parts (string-split launcher))
				     (launcher-exe   (car launcher-parts)))
				(if (equal? launcher-exe "#MTLOWESTLOAD") ;; this is our special case, we will find the lowest load and craft a nbfake commandline
				    (let ((targ-host (common:get-least-loaded-host (cdr launcher-parts))))
				      (conc "remrun " targ-host))
			      launcher
				    launcher))
			      (begin
				(debug:print-info 0 *default-log-port* "WARNING: no launcher found for host-type " host-type)
				(if (null? tal)
				    fallback-launcher
				    (loop (car tal)(cdr tal)))))))
		      ;; no match, try again
		      (if (null? tal)

;; 2. create run dir on disk, path name is meaningful
;; 3. create link from run dir to megatest runs area 
;; 4. remotely run the test on allocated host
;;    - could be ssh to host from hosts table (update regularly with load)
;;    - could be netbatch
;;      (launch-test db (cadr status) test-conf))
(define (launch-test test-id run-id run-info keyvals runname test-conf test-name test-path itemdat params)
  (let* ((item-path       (item-list->path itemdat)))
  (let loop ((delta        (- (current-seconds) *last-launch*))
	     (launch-delay (string->number (or (configf:lookup *configdat* "setup" "launch-delay") "5"))))
    (if (> launch-delay delta)
	(begin
	  (debug:print-info 0 *default-log-port* "Delaying launch of " test-name " for " (- launch-delay delta) " seconds")
	  (thread-sleep! (- launch-delay delta))
	  (loop (- (current-seconds) *last-launch*) launch-delay))))
  (set! *last-launch* (current-seconds))
  (change-directory *toppath*)
  (alist->env-vars ;; consolidate this code with the code in megatest.scm for "-execute"
   (list ;; (list "MT_TEST_RUN_DIR" work-area)
    (list "MT_RUN_AREA_HOME" *toppath*)
    (list "MT_TEST_NAME" test-name)
    (let loop ((delta        (- (current-seconds) *last-launch*))
	       (launch-delay (string->number (or (configf:lookup *configdat* "setup" "launch-delay") "5"))))
      (if (> launch-delay delta)
	  (begin
	    (debug:print-info 0 *default-log-port* "Delaying launch of " test-name " for " (- launch-delay delta) " seconds")
	    (thread-sleep! (- launch-delay delta))
	    (loop (- (current-seconds) *last-launch*) launch-delay))))
    (set! *last-launch* (current-seconds))
    (change-directory *toppath*)
    (alist->env-vars ;; consolidate this code with the code in megatest.scm for "-execute", *maybe* - the longer they are set the longer each launch takes (must be non-overlapping with the vars)
     (list
      (list "MT_RUN_AREA_HOME" *toppath*)
      (list "MT_TEST_NAME" test-name)
    ;; (list "MT_ITEM_INFO" (conc itemdat)) 
    (list "MT_RUNNAME"   runname)
    ;; (list "MT_TARGET"    mt_target)
    ))
  (let* ((tregistry       (tests:get-all))
      (list "MT_RUNNAME"   runname)
      (list "MT_ITEMPATH"  item-path)
      ))
    (let* ((tregistry       (tests:get-all))
	 (item-path       (let ((ip (item-list->path itemdat)))
			    (alist->env-vars (list (list "MT_ITEMPATH" ip)))
			    ip))
	 (tconfig         (or (tests:get-testconfig test-name tregistry #t force-create: #t)
			      test-conf)) ;; force re-read now that all vars are set
	 (useshell        (let ((ush (config-lookup *configdat* "jobtools"     "useshell")))
			    (if ush 
				(if (equal? ush "no") ;; must use "no" to NOT use shell
				    #f
				    ush)
				#t)))     ;; default is yes
	 (runscript       (config-lookup tconfig   "setup"        "runscript"))
	 (ezsteps         (> (length (hash-table-ref/default tconfig "ezsteps" '())) 0)) ;; don't send all the steps, could be big
	 (diskspace       (config-lookup tconfig   "requirements" "diskspace"))
	 (memory          (config-lookup tconfig   "requirements" "memory"))
	 (hosts           (config-lookup *configdat* "jobtools"     "workhosts"))
	 (remote-megatest (config-lookup *configdat* "setup" "executable"))
	 (run-time-limit  (or (configf:lookup  tconfig   "requirements" "runtimelim")
			      (configf:lookup  *configdat* "setup" "runtimelim")))
	 ;; FIXME SOMEDAY: not good how this is so obtuse, this hack is to 
	 ;;                allow running from dashboard. Extract the path
	 ;;                from the called megatest and convert dashboard
	 ;;             	  or dboard to megatest
	 (local-megatest  (let* ((lm  (car (argv)))
				 (dir (pathname-directory lm))
				 (exe (pathname-strip-directory lm)))
			    (conc (if dir (conc dir "/") "")
				  (case (string->symbol exe)
				    ((dboard)    "../megatest")
				    ((mtest)     "../megatest")
				    ((dashboard) "megatest")
				    (else exe)))))
	 (launcher        (common:get-launcher *configdat* test-name item-path)) ;; (config-lookup *configdat* "jobtools"     "launcher"))
	 (test-sig   (conc (common:get-testsuite-name) ":" test-name ":" item-path)) ;; (item-list->path itemdat))) ;; test-path is the full path including the item-path
	 (work-area  #f)
	 (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)
	 (testinfo   (rmt:get-test-info-by-id run-id test-id))
	 (mt_target  (string-intersperse (map cadr keyvals) "/"))
	 (debug-param (append (if (args:get-arg "-debug")  (list "-debug" (args:get-arg "-debug")) '())
			      (if (args:get-arg "-logging")(list "-logging") '()))))

	   (tconfig         (or (tests:get-testconfig test-name tregistry #t force-create: #t)
				test-conf)) ;; force re-read now that all vars are set
	   (useshell        (let ((ush (config-lookup *configdat* "jobtools"     "useshell")))
			      (if ush 
				  (if (equal? ush "no") ;; must use "no" to NOT use shell
				      #f
				      ush)
				  #t)))     ;; default is yes
	   (runscript       (config-lookup tconfig   "setup"        "runscript"))
	   (ezsteps         (> (length (hash-table-ref/default tconfig "ezsteps" '())) 0)) ;; don't send all the steps, could be big
	   ;; (diskspace       (config-lookup tconfig   "requirements" "diskspace"))
	   ;; (memory          (config-lookup tconfig   "requirements" "memory"))
	   ;; (hosts           (config-lookup *configdat* "jobtools"     "workhosts")) ;; I'm pretty sure this was never completed
	   (remote-megatest (config-lookup *configdat* "setup" "executable"))
	   (run-time-limit  (or (configf:lookup  tconfig   "requirements" "runtimelim")
				(configf:lookup  *configdat* "setup" "runtimelim")))
	   ;; FIXME SOMEDAY: not good how this is so obtuse, this hack is to 
	   ;;                allow running from dashboard. Extract the path
	   ;;                from the called megatest and convert dashboard
	   ;;             	  or dboard to megatest
	   (local-megatest  (let* ((lm  (car (argv)))
				   (dir (pathname-directory lm))
				   (exe (pathname-strip-directory lm)))
			      (conc (if dir (conc dir "/") "")
				    (case (string->symbol exe)
				      ((dboard)    "../megatest")
				      ((mtest)     "../megatest")
				      ((dashboard) "megatest")
				      (else exe)))))
	   (launcher        (common:get-launcher *configdat* test-name item-path)) ;; (config-lookup *configdat* "jobtools"     "launcher"))
	   (test-sig   (conc (common:get-testsuite-name) ":" test-name ":" item-path)) ;; (item-list->path itemdat))) ;; test-path is the full path including the item-path
	   (work-area  #f)
	   (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)
	   (testinfo   (rmt:get-test-info-by-id run-id test-id))
	   (mt_target  (string-intersperse (map cadr keyvals) "/"))
	   (debug-param (append (if (args:get-arg "-debug")  (list "-debug" (args:get-arg "-debug")) '())
				(if (args:get-arg "-logging")(list "-logging") '()))))
      
    (setenv "MT_ITEMPATH" item-path)
    (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
    (if (and (args:get-arg "-preclean") ;; user has requested to preclean for this run
	     (not (member (db:test-get-rundir testinfo)(list "n/a" "/tmp/badname")))) ;; n/a is a placeholder and thus not a read dir
	(begin
	  (debug:print-info 0 *default-log-port* "attempting to preclean directory " (db:test-get-rundir testinfo) " for test " test-name "/" item-path)
	  (runs:remove-test-directory testinfo 'remove-data-only))) ;; remove data only, do not perturb the record

    ;; prevent overlapping actions - set to LAUNCHED as early as possible
    ;;
    ;; the following call handles waiver propogation. cannot yet condense into roll-up-pass-fail
    (tests:test-set-status! run-id test-id "LAUNCHED" "n/a" #f #f) ;; (if launch-results launch-results "FAILED"))
    (rmt:roll-up-pass-fail-counts run-id test-name item-path #f "LAUNCHED" #f)
    (set! diskpath (get-best-disk *configdat* tconfig))
    (if diskpath
	(let ((dat  (create-work-area run-id run-info keyvals test-id test-path diskpath test-name itemdat)))
	  (set! work-area (car dat))
	  (set! toptest-work-area (cadr dat))
	  (debug:print-info 2 *default-log-port* "Using work area " work-area))
	(begin
	  (set! work-area (conc test-path "/tmp_run"))
	  (create-directory work-area #t)
	  (debug:print 0 *default-log-port* "WARNING: No disk work area specified - running in the test directory under tmp_run")))
    (set! cmdparms (base64:base64-encode 
		    (z3:encode-buffer 
		     (with-output-to-string
		       (lambda () ;; (list 'hosts     hosts)
			 (write (list (list 'testpath  test-path)
				      (list 'transport (conc *transport-type*))
				      ;; (list 'serverinf *server-info*)
				      (list 'toppath   *toppath*)
				      (list 'work-area work-area)
				      (list 'test-name test-name) 
				      (list 'runscript runscript) 
				      (list 'run-id    run-id   )
				      (list 'test-id   test-id  )
				      ;; (list 'item-path item-path )
				      (list 'itemdat   itemdat  )
				      (list 'megatest  remote-megatest)
				      (list 'ezsteps   ezsteps) 
				      (list 'target    mt_target)
				      (list 'runtlim   (if run-time-limit (common:hms-string->seconds run-time-limit) #f))
				      (list 'env-ovrd  (hash-table-ref/default *configdat* "env-override" '())) 
				      (list 'set-vars  (if params (hash-table-ref/default params "-setvars" #f)))
				      (list 'runname   runname)
				      (list 'mt-bindir-path mt-bindir-path))))))))

    ;; clean out step records from previous run if they exist
    ;; (rmt:delete-test-step-records run-id test-id)
    ;; if the dir does not exist we may have a itempath where individual variables are a path, launch anyway
    (if (file-exists? work-area)
	(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 "-m" test-sig "-execute" cmdparms) debug-param)))
     ;; (set! fullcmd (append launcher (car hosts)(list remote-megatest test-sig "-execute" cmdparms))))
     (launcher
      (set! fullcmd (append launcher (list remote-megatest "-m" test-sig "-execute" cmdparms) debug-param)))
     ;; (set! fullcmd (append launcher (list remote-megatest test-sig "-execute" cmdparms))))
     (else
      (if (not useshell)(debug:print 0 *default-log-port* "WARNING: internal launching will not work well without \"useshell yes\" in your [jobtools] section"))
      (set! fullcmd (append (list remote-megatest "-m" test-sig "-execute" cmdparms) debug-param (list (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 *default-log-port* "Launching " work-area)
    ;; set pre-launch-env-vars before launching, keep the vars in prevvals and put the envionment back when done
    (debug:print 4 *default-log-port* "fullcmd: " fullcmd)
    (let* ((commonprevvals (alist->env-vars
			    (hash-table-ref/default *configdat* "env-override" '())))
      ;; (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
      (if (and (args:get-arg "-preclean") ;; user has requested to preclean for this run
	       (not (member (db:test-get-rundir testinfo)(list "n/a" "/tmp/badname")))) ;; n/a is a placeholder and thus not a read dir
	  (begin
	    (debug:print-info 0 *default-log-port* "attempting to preclean directory " (db:test-get-rundir testinfo) " for test " test-name "/" item-path)
	    (runs:remove-test-directory testinfo 'remove-data-only))) ;; remove data only, do not perturb the record
      
      ;; prevent overlapping actions - set to LAUNCHED as early as possible
      ;;
      ;; the following call handles waiver propogation. cannot yet condense into roll-up-pass-fail
      (tests:test-set-status! run-id test-id "LAUNCHED" "n/a" #f #f) ;; (if launch-results launch-results "FAILED"))
      (rmt:roll-up-pass-fail-counts run-id test-name item-path #f "LAUNCHED" #f)
      (set! diskpath (get-best-disk *configdat* tconfig))
      (if diskpath
	  (let ((dat  (create-work-area run-id run-info keyvals test-id test-path diskpath test-name itemdat)))
	    (set! work-area (car dat))
	    (set! toptest-work-area (cadr dat))
	    (debug:print-info 2 *default-log-port* "Using work area " work-area))
	  (begin
	    (set! work-area (conc test-path "/tmp_run"))
	    (create-directory work-area #t)
	    (debug:print 0 *default-log-port* "WARNING: No disk work area specified - running in the test directory under tmp_run")))
      (set! cmdparms (base64:base64-encode 
		      (z3:encode-buffer 
		       (with-output-to-string
			 (lambda () ;; (list 'hosts     hosts)
			   (write (list (list 'testpath  test-path)
					(list 'transport (conc *transport-type*))
					;; (list 'serverinf *server-info*)
					(list 'toppath   *toppath*)
					(list 'work-area work-area)
					(list 'test-name test-name) 
					(list 'runscript runscript) 
					(list 'run-id    run-id   )
					(list 'test-id   test-id  )
					;; (list 'item-path item-path )
					(list 'itemdat   itemdat  )
					(list 'megatest  remote-megatest)
					(list 'ezsteps   ezsteps) 
					(list 'target    mt_target)
					(list 'runtlim   (if run-time-limit (common:hms-string->seconds run-time-limit) #f))
					(list 'env-ovrd  (hash-table-ref/default *configdat* "env-override" '())) 
					(list 'set-vars  (if params (hash-table-ref/default params "-setvars" #f)))
					(list 'runname   runname)
					(list 'mt-bindir-path mt-bindir-path))))))))
      
      ;; clean out step records from previous run if they exist
      ;; (rmt:delete-test-step-records run-id test-id)
      ;; if the dir does not exist we may have a itempath where individual variables are a path, launch anyway
      (if (file-exists? work-area)
	  (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 "-m" test-sig "-execute" cmdparms) debug-param)))
       ;; (set! fullcmd (append launcher (car hosts)(list remote-megatest test-sig "-execute" cmdparms))))
       (launcher
	(set! fullcmd (append launcher (list remote-megatest "-m" test-sig "-execute" cmdparms) debug-param)))
       ;; (set! fullcmd (append launcher (list remote-megatest test-sig "-execute" cmdparms))))
       (else
	(if (not useshell)(debug:print 0 *default-log-port* "WARNING: internal launching will not work well without \"useshell yes\" in your [jobtools] section"))
	(set! fullcmd (append (list remote-megatest "-m" test-sig "-execute" cmdparms) debug-param (list (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 *default-log-port* "Launching " work-area)
      ;; set pre-launch-env-vars before launching, keep the vars in prevvals and put the envionment back when done
      (debug:print 4 *default-log-port* "fullcmd: " fullcmd)
      (let* ((commonprevvals (alist->env-vars
			      (hash-table-ref/default *configdat* "env-override" '())))
	   (testprevvals   (alist->env-vars
			    (hash-table-ref/default tconfig "pre-launch-env-overrides" '())))
	   (miscprevvals   (alist->env-vars ;; consolidate this code with the code in megatest.scm for "-execute"
			    (append (list (list "MT_TEST_RUN_DIR" work-area)
					  (list "MT_TEST_NAME" test-name)
					  (list "MT_ITEM_INFO" (conc itemdat)) 
					  (list "MT_RUNNAME"   runname)
					  (list "MT_TARGET"    mt_target)
					  (list "MT_ITEMPATH"  item-path)
					  )
				    itemdat)))
	   ;; Launchwait defaults to true, must override it to turn off wait
	   (launchwait     (if (equal? (configf:lookup *configdat* "setup" "launchwait") "no") #f #t))
	   (launch-results (apply (if launchwait
				      process:cmd-run-with-stderr->list
				      process-run)
				  (if useshell
				      (let ((cmdstr (string-intersperse fullcmd " ")))
					(if launchwait
					    cmdstr
					    (conc cmdstr " >> mt_launch.log 2>&1")))
				      (car fullcmd))
				  (if useshell
				      '()
				      (cdr fullcmd)))))
      (if (not launchwait) ;; give the OS a little time to allow the process to start
	  (thread-sleep! 0.01))
      (with-output-to-file "mt_launch.log"
	(lambda ()
	  (print "LAUNCHCMD: " (string-intersperse fullcmd " "))
	  (if (list? launch-results)
	      (apply print launch-results)
	      (print "NOTE: launched \"" fullcmd "\"\n  but did not wait for it to proceed. Add the following to megatest.config \n[setup]\nlaunchwait yes\n  if you have problems with this"))
	  #:append))
      (debug:print 2 *default-log-port* "Launching completed, updating db")
      (debug:print 2 *default-log-port* "Launch results: " launch-results)
      (if (not launch-results)
          (begin
            (print "ERROR: Failed to run " (string-intersperse fullcmd " ") ", exiting now")
            ;; (sqlite3:finalize! db)
            ;; good ole "exit" seems not to work
            ;; (_exit 9)
            ;; but this hack will work! Thanks go to Alan Post of the Chicken email list
            ;; NB// Is this still needed? Should be safe to go back to "exit" now?
            (process-signal (current-process-id) signal/kill)
            ))
      (alist->env-vars miscprevvals)
      (alist->env-vars testprevvals)
      (alist->env-vars commonprevvals)
      launch-results))
  (change-directory *toppath*))
	     (miscprevvals   (alist->env-vars ;; consolidate this code with the code in megatest.scm for "-execute"
			      (append (list (list "MT_TEST_RUN_DIR" work-area)
					    (list "MT_TEST_NAME" test-name)
					    (list "MT_ITEM_INFO" (conc itemdat)) 
					    (list "MT_RUNNAME"   runname)
					    (list "MT_TARGET"    mt_target)
					    (list "MT_ITEMPATH"  item-path)
					    )
				      itemdat)))
	     (testprevvals   (alist->env-vars
			      (hash-table-ref/default tconfig "pre-launch-env-overrides" '())))
	     ;; Launchwait defaults to true, must override it to turn off wait
	     (launchwait     (if (equal? (configf:lookup *configdat* "setup" "launchwait") "no") #f #t))
	     (launch-results (apply (if launchwait
					process:cmd-run-with-stderr->list
					process-run)
				    (if useshell
					(let ((cmdstr (string-intersperse fullcmd " ")))
					  (if launchwait
					      cmdstr
					      (conc cmdstr " >> mt_launch.log 2>&1")))
					(car fullcmd))
				    (if useshell
					'()
					(cdr fullcmd)))))
	(if (not launchwait) ;; give the OS a little time to allow the process to start
	    (thread-sleep! 0.01))
	(with-output-to-file "mt_launch.log"
	  (lambda ()
	    (print "LAUNCHCMD: " (string-intersperse fullcmd " "))
	    (if (list? launch-results)
		(apply print launch-results)
		(print "NOTE: launched \"" fullcmd "\"\n  but did not wait for it to proceed. Add the following to megatest.config \n[setup]\nlaunchwait yes\n  if you have problems with this"))
	    #:append))
	(debug:print 2 *default-log-port* "Launching completed, updating db")
	(debug:print 2 *default-log-port* "Launch results: " launch-results)
	(if (not launch-results)
	    (begin
	      (print "ERROR: Failed to run " (string-intersperse fullcmd " ") ", exiting now")
	      ;; (sqlite3:finalize! db)
	      ;; good ole "exit" seems not to work
	      ;; (_exit 9)
	      ;; but this hack will work! Thanks go to Alan Post of the Chicken email list
	      ;; NB// Is this still needed? Should be safe to go back to "exit" now?
	      (process-signal (current-process-id) signal/kill)
	      ))
	(alist->env-vars miscprevvals)
	(alist->env-vars testprevvals)
	(alist->env-vars commonprevvals)
	launch-results))
    (change-directory *toppath*)))

;; recover a test where the top controlling mtest may have died
;;
(define (launch:recover-test run-id test-id)
  ;; this function is called on the test run host via ssh
  ;;
  ;; 1. look at the process from pid

#!/bin/bash
###############################################################################
#
# remrun - same behavior as nbfake but first param is a hosthane
#          (capture command output in a logfile)
#
# remrun behavior can be changed by setting the following env var:
#   NBFAKE_LOG        Logfile for nbfake output
#
###############################################################################

if [[ -z "$@" ]]; then
  cat <<__EOF

remrun usage:

remrun hostname <command to run>

remrun behavior can be changed by setting the following env vars:
   NBFAKE_LOG        Logfile for remrun output

__EOF
  exit
fi

export NBFAKE_HOST=$1
shift
exec nbfake $*