Megatest

(define *configdat*  #f)
(define *toppath*    #f)
(define *already-seen-runconfig-info* #f)
(define *waiting-queue*     (make-hash-table))
(define *test-meta-updated* (make-hash-table))
(define *globalexitstatus*  0) ;; attempt to work around possible thread issues
(define *passnum*           0) ;; when running track calls to run-tests or similar

(define *rpc:listener*      #f) ;; if set up for server communication this will hold the tcp port
(define *runremote*         #f) ;; if set up for server communication this will hold <host port>
(define *last-db-access*    (current-seconds))  ;; update when db is accessed via server
(define *max-cache-size*    0)
(define *target*            (make-hash-table)) ;; cache the target here; target is keyval1/keyval2/.../keyvalN
(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

;; Debugging stuff
(define *verbosity*         1)
(define *logging*           #f)

(define (get-with-default val default)
  (let ((val (args:get-arg val)))
    (if val val default)))

(define (assoc/default key lst . default)
  (let ((res (assoc key lst)))
    (if res (cadr res)(if (null? default) #f (car default)))))

;;======================================================================
;; 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.
;;======================================================================

(define-inline (debug:print n . params)
  (begin
    (if (<= n *verbosity*)
	(apply print params))
    (if *logging*
	(apply db:log-event params))))

;; if a value is printable (i.e. string or number) return the value
;; else return an empty string
(define-inline (printable val)
  (if (or (number? val)(string? val)) val ""))

                                status TEXT DEFAULT 'n/a',
                                type TEXT DEFAULT '',
                              CONSTRAINT test_data_constraint UNIQUE (test_id,category,variable));")
    ;; Must do this *after* running patch db !! No more. 
    (db:set-var db "MEGATEST_VERSION" megatest-version)
    ))

;;======================================================================
;; T E S T   S P E C I F I C   D B 
;;======================================================================

;; Create the sqlite db for the individual test(s)
(define (open-test-db testpath) 
  (if (and (directory? testpath)
	   (file-read-access? testpath))
      (let* ((dbpath    (conc testpath "/testdat.db"))
	     (dbexists  (file-exists? dbpath))
	     (db        (sqlite3:open-database dbpath)) ;; (never-give-up-open-db dbpath))

	 ;;      the ackstate is set to 1 once the command has been completed
	 "CREATE TABLE IF NOT EXISTS test_meta (
              id INTEGER PRIMARY KEY,
              var TEXT,
              val TEXT,
              ackstate INTEGER DEFAULT 0,
              CONSTRAINT metadat_constraint UNIQUE (var));")))

;;======================================================================
;; L O G G I N G    D B 
;;======================================================================

(define (open-logging-db) ;;  (conc *toppath* "/megatest.db") (car *configinfo*)))
  (let* ((dbpath    (conc (if *toppath* (conc *toppath* "/") "") "logging.db")) ;; fname)
	 (dbexists  (file-exists? dbpath))
	 (db        (sqlite3:open-database dbpath)) ;; (never-give-up-open-db dbpath))
	 (handler   (make-busy-timeout (if (args:get-arg "-override-timeout")
					   (string->number (args:get-arg "-override-timeout"))
					   36000)))) ;; 136000)))
    (sqlite3:set-busy-handler! db handler)
    (if (not dbexists)
	(begin
	  (sqlite3:execute db "CREATE TABLE IF NOT EXISTS log (id INTEGER PRIMARY KEY,event_time TIMESTAMP DEFAULT (strftime('%s','now')),logline TEXT);")
	  (sqlite3:execute db (conc "PRAGMA synchronous = 0;"))))
    db))

(define (db:log-event . loglst)
  (let ((db      (open-logging-db))
	(logline (apply conc loglst)))
    (sqlite3:execute db "INSERT INTO log (logline) VALUES (?);" logline)
    (sqlite3:finalize! db)
    logline))

;;======================================================================
;; TODO:
;;   put deltas into an assoc list with version numbers
;;   apply all from last to current
;;======================================================================
(define (patch-db db)

	 (cmdparms   #f)
	 (fullcmd    #f) ;; (define a (with-output-to-string (lambda ()(write x))))
	 (mt-bindir-path #f)
	 (item-path (item-list->path itemdat))
	 (test-id    (open-run-close db:get-test-id db run-id test-name item-path))
	 (testinfo   (open-run-close db:get-test-info-by-id db test-id))
	 (mt_target  (string-intersperse (map cadr keyvallst) "/"))
	 (debug-param (append (if (args:get-arg "-debug")  (list "-debug" (args:get-arg "-debug")) '())
			      (if (args:get-arg "-logging")(list "-logging") '()))))
    (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*))

  -update-meta            : update the tests metadata for all tests
  -env2file fname         : write the environment to fname.csh and fname.sh
  -setvars VAR1=val1,VAR2=val2 : Add environment variables to a run NB// these are
                                 overwritten by values set in config files.
  -server -|hostname      : start the server (reduces contention on megatest.db), use
                            - to automatically figure out hostname
  -repl                   : start a repl (useful for extending megatest)
  -debug N                : increase verbosity to N. (try 10 for lots of noise)
  -logging                : turn on logging all debug output to logging.db

Spreadsheet generation
  -extract-ods fname.ods  : extract an open document spreadsheet from the database
  -pathmod path           : insert path, i.e. path/runame/itempath/logfile.html
                            will clear the field if no rundir/testname/itempath/logfile
                            if it contains forward slashes the path will be converted
                            to windows style

			"-rebuild-db"
			"-rollup"
			"-update-meta"
			"-gen-megatest-area"

			"-v" ;; verbose 2, more than normal (normal is 1)
			"-q" ;; quiet 0, errors/warnings only
			"-logging"
		       )
		 args:arg-hash
		 0))

(if (args:get-arg "-h")
    (begin
      (print help)

		   ((args:get-arg "-q")    0)
		   (else                   1)))

(if (not (number? *verbosity*))
    (begin
      (print "ERROR: Invalid debug value " (args:get-arg "-debug"))
      (exit)))

(if (args:get-arg "-logging")(set! *logging* #t))

;;======================================================================
;; Misc general calls
;;======================================================================

(if (args:get-arg "-env2file")
    (begin

	       (hostname       (if (string=? "-" hostn)
				   (get-host-name) 
				   hostn))
	       (ipaddrstr      (if (string=? "-" hostn)
				   (string-intersperse (map number->string (u8vector->list (hostname->ip hostname))) ".")
				   #f))
	       (host:port      (conc (if ipaddrstr ipaddrstr hostname) ":" (rpc:default-server-port))))
	  (debug:print 0 "Server started on " host:port)
	  (db:set-var db "SERVER" host:port)
	  (set! *cache-on* #t)
	  
	  ;; can use this to run most anything at the remote
	  (rpc:publish-procedure! 
	   'remote:run 
	   (lambda (procstr . params)

			 (mutex-unlock! *incoming-mutex*)
			 (if (> queue-len 0)
			     (begin
			       (debug:print 0 "INFO: Queue not flushed, waiting ...")
			       (loop (+ n 1)))))
		      )))
	  (thread-start! th1)
	  ;; (debug:print 0 "Server started on port " (rpc:default-server-port) "...")
	  (thread-start! th2)
	  ;; (thread-join!  th2)
	  ;; return th2 for the calling process to do a join with 
	  th2
	  )))) ;; rpc:server)))

(define (server:keep-running db host:port)

(define (server:find-free-port-and-open port)
  (handle-exceptions
   exn
   (begin
     (print "Failed to bind to port " (rpc:default-server-port) ", trying next port")
     (server:find-free-port-and-open (+ port 1)))
   (rpc:default-server-port port)
   (tcp-read-timeout 240000)
   (tcp-listen (rpc:default-server-port) 10000)))

(define (server:client-setup)
  (if *runremote*
      (begin
	(debug:print 0 "ERROR: Attempt to connect to server but already connected")
	#f)
      (let* ((hostinfo (open-run-close db:get-var #f "SERVER"))