Megatest

   ods.scm runconfig.scm server.scm configf.scm \
   db.scm keys.scm margs.scm megatest-version.scm \
   process.scm runs.scm tasks.scm tests.scm genexample.scm \
   http-transport.scm filedb.scm \
   client.scm synchash.scm daemon.scm mt.scm \
   ezsteps.scm lock-queue.scm sdb.scm \
   rmt.scm api.scm tdb.scm rpc-transport.scm \
   portlogger.scm archive.scm env.scm
   portlogger.scm archive.scm env.scm diff-report.scm

# Eggs to install (straightforward ones)
EGGS=matchable readline apropos base64 regex-literals format regex-case test coops trace csv \
dot-locking posix-utils posix-extras directory-utils hostinfo tcp-server rpc csv-xml fmt \
json md5 awful http-client spiffy uri-common intarweb spiffy-request-vars \
spiffy-directory-listing ssax sxml-serializer sxml-modifications iup canvas-draw sqlite3

;;======================================================================
;; C L I E N T S
;;======================================================================

(require-extension (srfi 18) extras tcp s11n)

(use srfi-1 posix regex regex-case srfi-69 hostinfo md5 message-digest)
(use srfi-1 posix regex regex-case srfi-69 hostinfo md5 message-digest matchable)
;; (use zmq)

(use (prefix sqlite3 sqlite3:))

(use spiffy uri-common intarweb http-client spiffy-request-vars uri-common intarweb directory-utils)

(declare (unit client))

(define (client:connect iface port)
  (case (server:get-transport)
    ((rpc)  (rpc:client-connect  iface port))
    ((http) (http:client-connect iface port))
    ((zmq)  (zmq:client-connect  iface port))
    (else   (rpc:client-connect  iface port))))

(define (client:setup  run-id #!key (remaining-tries 10) (failed-connects 0))
(define (client:setup areapath #!key (remaining-tries 100) (failed-connects 0))
  (case (server:get-transport)
    ((rpc) (rpc-transport:client-setup run-id remaining-tries: remaining-tries failed-connects: failed-connects)) ;;(client:setup-rpc run-id))
    ((http)(client:setup-http run-id remaining-tries: remaining-tries failed-connects: failed-connects))
    (else  (rpc-transport:client-setup run-id remaining-tries: remaining-tries failed-connects: failed-connects)))) ;; (client:setup-rpc run-id))))
    ((rpc) (rpc-transport:client-setup remaining-tries: remaining-tries failed-connects: failed-connects)) ;;(client:setup-rpc run-id))
    ((http)(client:setup-http areapath remaining-tries: remaining-tries failed-connects: failed-connects))
    (else  (rpc-transport:client-setup remaining-tries: remaining-tries failed-connects: failed-connects)))) ;; (client:setup-rpc run-id))))

;; (define (client:login-no-auto-setup server-info run-id)
;;   (case (server:get-transport)
;;     ((rpc)  (rpc:login-no-auto-client-setup server-info run-id))
;;     ((http) (rmt:login-no-auto-client-setup server-info run-id))
;;     (else   (rpc:login-no-auto-client-setup server-info run-id))))
;; 
;; (define (client:setup-rpc run-id)
;;   (debug:print 0 *default-log-port* "INFO: client:setup remaining-tries=" remaining-tries)
;;   (if (<= remaining-tries 0)
;;       (begin
;; 	(debug:print-error 0 *default-log-port* "failed to start or connect to server for run-id " run-id)
;; 	(exit 1))
;;       (let ((host-info (hash-table-ref/default *runremote* run-id #f)))
;; 	(debug:print-info 0 *default-log-port* "client:setup host-info=" host-info ", remaining-tries=" remaining-tries)
;; 	(if host-info
;; 	    (let* ((iface     (car  host-info))
;; 		   (port      (cadr host-info))
;; 		   (start-res (client:connect iface port))
;; 		   ;; (ping-res  (server:ping-server run-id iface port))
;; 		   (ping-res  (client:login-no-auto-setup start-res run-id)))
;; 	      (if ping-res   ;; sucessful login?
;; 		  (begin
;; 		    (hash-table-set! *runremote* run-id start-res)
;; 		    start-res)  ;; return the server info
;; 		  (if (member remaining-tries '(3 4 6))
;; 		      (begin    ;; login failed
;; 			(debug:print 25 *default-log-port* "INFO: client:setup start-res=" start-res ", run-id=" run-id ", server-dat=" host-info)
;; 			(hash-table-delete! *runremote* run-id)
;; 			(open-run-close tasks:server-force-clean-run-record
;; 			 		tasks:open-db
;; 			 		run-id 
;; 			 		(car  host-info)
;; 			 		(cadr host-info)
;; 					" client:setup (host-info=#t)")
;; 			(thread-sleep! 5)
;; 			(client:setup run-id remaining-tries: 10)) ;; (- remaining-tries 1)))
;; 		      (begin
;; 			(debug:print 25 *default-log-port* "INFO: client:setup failed to connect, start-res=" start-res ", run-id=" run-id ", host-info=" host-info)
;; 			(thread-sleep! 5)
;; 			(client:setup run-id remaining-tries: (- remaining-tries 1))))))
;; 	    ;; YUK: rename server-dat here
;; 	    (let* ((server-dat (open-run-close tasks:get-server tasks:open-db run-id)))
;; 	      (debug:print-info 0 *default-log-port* "client:setup server-dat=" server-dat ", remaining-tries=" remaining-tries)
;; 	      (if server-dat
;; 		  (let* ((iface     (tasks:hostinfo-get-interface server-dat))
;; 			 (port      (tasks:hostinfo-get-port      server-dat))
;; 			 (start-res (http-transport:client-connect iface port))
;; 			 ;; (ping-res  (server:ping-server run-id iface port))
;; 			 (ping-res  (rmt:login-no-auto-client-setup start-res run-id)))
;; 		    (if start-res
;; 			(begin
;; 			  (hash-table-set! *runremote* run-id start-res)
;; 			  start-res)
;; 			(if (member remaining-tries '(2 5))
;; 			    (begin    ;; login failed
;; 			      (debug:print 25 *default-log-port* "INFO: client:setup start-res=" start-res ", run-id=" run-id ", server-dat=" server-dat)
;; 			      (hash-table-delete! *runremote* run-id)
;; 			      (open-run-close tasks:server-force-clean-run-record
;; 					      tasks:open-db
;; 					      run-id 
;; 					      (tasks:hostinfo-get-interface server-dat)
;; 					      (tasks:hostinfo-get-port      server-dat)
;; 					      " client:setup (server-dat = #t)")
;; 			      (thread-sleep! 2)
;; 			      (server:try-running run-id)
;; 			      (thread-sleep! 10) ;; give server a little time to start up
;; 			      (client:setup run-id remaining-tries: 10)) ;; (- remaining-tries 1)))
;; 			    (begin
;; 			      (debug:print 25 *default-log-port* "INFO: client:setup start-res=" start-res ", run-id=" run-id ", server-dat=" server-dat)
;; 			      (thread-sleep! 5)
;; 			      (client:setup run-id remaining-tries: (- remaining-tries 1))))))
;; 		  (begin    ;; no server registered
;; 		    (if (eq? remaining-tries 2)
;; 			(begin
;; 			  ;; (open-run-close tasks:server-clean-out-old-records-for-run-id tasks:open-db run-id " client:setup (server-dat=#f)")
;; 			  (client:setup run-id remaining-tries: 10))
;; 			(begin
;; 			  (thread-sleep! 2) 
;; 			  (debug:print 25 *default-log-port* "INFO: client:setup start-res (not defined here), run-id=" run-id ", server-dat=" server-dat)
;; 			  (if (< (open-run-close tasks:num-in-available-state tasks:open-db run-id) 3)
;; 			      (begin
;; 				;; (open-run-close tasks:server-clean-out-old-records-for-run-id tasks:open-db run-id " client:setup (server-dat=#f)")
;; 				(server:try-running run-id)))
;; 			  (thread-sleep! 10) ;; give server a little time to start up
;; 			  (client:setup run-id remaining-tries: (- remaining-tries 1)))))))))))

;; Do all the connection work, look up the transport type and set up the
;; connection if required.
;;
;; There are two scenarios. 
;;   1. We are a test manager and we received *transport-type* and *runremote* via cmdline
;;   2. We are a run tests, list runs or other interactive process and we must figure out
;;      *transport-type* and *runremote* from the monitor.db
;;
;; client:setup
;;
;; lookup_server, need to remove *runremote* stuff
;;
(define (client:setup-http run-id #!key (remaining-tries 10) (failed-connects 0))

(define (client:setup-http areapath #!key (remaining-tries 100) (failed-connects 0))
  (debug:print-info 2 *default-log-port* "client:setup remaining-tries=" remaining-tries)
  (let* ((tdbdat (tasks:open-db)))
    (if (<= remaining-tries 0)
	(begin
	  (debug:print-error 0 *default-log-port* "failed to start or connect to server for run-id " run-id)
	  (exit 1))
	(let* ((server-dat (tasks:get-server (db:delay-if-busy tdbdat) run-id)))
	  (debug:print-info 4 *default-log-port* "client:setup server-dat=" server-dat ", remaining-tries=" remaining-tries)
	  (if server-dat
  (server:start-and-wait areapath)
  (if (<= remaining-tries 0)
      (begin
	(debug:print-error 0 *default-log-port* "failed to start or connect to server")
	(exit 1))
      ;;
      ;; Alternatively here, we can get the list of candidate servers and work our way
      ;; through them searching for a good one.
      ;;
      (let* ((server-dat (server:get-first-best areapath)))
	(if (not server-dat) ;; no server found
	    (client:setup-http areapath remaining-tries: (- remaining-tries 1))
	    (let ((host  (cadr  server-dat))
		  (port  (caddr server-dat)))
	      (debug:print-info 4 *default-log-port* "client:setup server-dat=" server-dat ", remaining-tries=" remaining-tries)
	      (if (not *runremote*)(set! *runremote* (make-remote)))
	      (if (and host port)
	      (let* ((iface     (tasks:hostinfo-get-interface server-dat))
		     (hostname  (tasks:hostinfo-get-hostname  server-dat))
		     (port      (tasks:hostinfo-get-port      server-dat))
		     (start-res (case *transport-type*
				  ((http)(http-transport:client-connect iface port))
		  (let* ((start-res (case *transport-type*
				      ((http)(http-transport:client-connect host port))))
				  ;;((nmsg)(nmsg-transport:client-connect hostname port))
                                  ))
		     (ping-res  (case *transport-type* 
				  ((http)(rmt:login-no-auto-client-setup start-res))
			 (ping-res  (case *transport-type* 
				      ((http)(rmt:login-no-auto-client-setup start-res)))))
				  ;; ((nmsg)(let ((logininfo (rmt:login-no-auto-client-setup start-res run-id)))
 				  ;;          (if logininfo
 				  ;;              (car (vector-ref logininfo 1))
 				  ;;              #f)))
                                  
                                  )))
		(if (and start-res
			 ping-res)
		    (begin
		      (remote-conndat-set! *runremote* start-res) ;; (hash-table-set! *runremote* run-id start-res)
		      (debug:print-info 2 *default-log-port* "connected to " (http-transport:server-dat-make-url start-res))
		      start-res)
		    (begin    ;; login failed but have a server record, clean out the record and try again
		      (debug:print-info 0 *default-log-port* "client:setup, login failed, will attempt to start server ... start-res=" start-res ", run-id=" run-id ", server-dat=" server-dat)
		      (case *transport-type* 
			((http)(http-transport:close-connections run-id)))
		      (remote-conndat-set! *runremote* #f)  ;; (hash-table-delete! *runremote* run-id)
		    (if (and start-res
			     ping-res)
			(begin
			  (remote-conndat-set! *runremote* start-res) ;; (hash-table-set! *runremote* run-id start-res)
			  (debug:print-info 2 *default-log-port* "connected to " (http-transport:server-dat-make-url start-res))
			  start-res)
			(begin    ;; login failed but have a server record, clean out the record and try again
			  (debug:print-info 0 *default-log-port* "client:setup, login failed, will attempt to start server ... start-res=" start-res ", run-id=" run-id ", server-dat=" server-dat)
			  (case *transport-type* 
			    ((http)(http-transport:close-connections)))
			  (remote-conndat-set! *runremote* #f)  ;; (hash-table-delete! *runremote* run-id)
		      (tasks:kill-server-run-id run-id)
		      (tasks:server-force-clean-run-record (db:delay-if-busy tdbdat)
							   run-id 
							   (tasks:hostinfo-get-interface server-dat)
							   (tasks:hostinfo-get-port      server-dat)
							   " client:setup (server-dat = #t)")
		      (if (> remaining-tries 8)
			  (thread-sleep! (+ 1 (random 5))) ;; spread out the starts a little
			  (thread-sleep! (+ 15 (random 20)))) ;; it isn't going well. give it plenty of time
		      (server:try-running *toppath*)
		      (thread-sleep! 5)   ;; give server a little time to start up
		      (client:setup run-id remaining-tries: (- remaining-tries 1))
		      )))
	      (begin    ;; no server registered
			  (thread-sleep! 1)
			  (client:setup-http areapath remaining-tries: (- remaining-tries 1))
			  )))
		  (begin    ;; no server registered
		(let ((num-available (tasks:num-in-available-state (db:dbdat-get-db tdbdat) run-id)))
		  (debug:print-info 0 *default-log-port* "client:setup, no server registered, remaining-tries=" remaining-tries " num-available=" num-available)
		    (server:kind-run areapath)
		    (debug:print-info 0 *default-log-port* "client:setup, no server registered, remaining-tries=" remaining-tries)
		  (if (< num-available 2)
		      (server:try-running *toppath*))
		  (thread-sleep! (+ 5 (random (- 20 remaining-tries))))  ;; give server a little time to start up, randomize a little to avoid start storms.
		  (client:setup run-id remaining-tries: (- remaining-tries 1)))))))))
		    (thread-sleep! 1) ;; (+ 5 (random (- 20 remaining-tries))))  ;; give server a little time to start up, randomize a little to avoid start storms.
		    (server:start-and-wait areapath)
		    (client:setup-http areapath remaining-tries: (- remaining-tries 1)))))))))

;; keep this as a function to ease future 
(define (client:start run-id server-info)
  (http-transport:client-connect (tasks:hostinfo-get-interface server-info)
				 (tasks:hostinfo-get-port server-info)))

;; ;; client:signal-handler
;; (define (client:signal-handler signum)
;;   (signal-mask! signum)
;;   (set! *time-to-exit* #t)
;;   (handle-exceptions
;;    exn
;;    (debug:print 0 *default-log-port* " ... exiting ...")
;;    (let ((th1 (make-thread (lambda ()
;; 			     "") ;; do nothing for now (was flush out last call if applicable)
;; 			   "eat response"))
;; 	 (th2 (make-thread (lambda ()
;; 			     (debug:print-error 0 *default-log-port* "Received ^C, attempting clean exit. Please be patient and wait a few seconds before hitting ^C again.")
;; 			     (thread-sleep! 1) ;; give the flush one second to do it's stuff
;; 			     (debug:print 0 *default-log-port* "       Done.")
;; 			     (exit 4))
;; 			   "exit on ^C timer")))
;;      (thread-start! th2)
;;      (thread-start! th1)
;;      (thread-join! th2))))
;; 
;; ;; client:launch
;; ;; Need to set the signal handler somewhere other than here as this
;; ;; routine will go away.
;; ;;
;; (define (client:launch run-id)
;;   (set-signal-handler! signal/int  client:signal-handler)
;;   (set-signal-handler! signal/term client:signal-handler)
;;   (if (client:setup run-id)
;;       (debug:print-info 2 *default-log-port* "connected as client")
;;       (begin
;; 	(debug:print-error 0 *default-log-port* "Failed to connect as client")
;; 	(exit))))
;; 

(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))

(defstruct remote
  (hh-dat            (common:get-homehost)) ;; homehost record ( addr . hhflag )
  (server-url        (if *toppath* (server:read-dotserver->url *toppath*))) ;; (server:check-if-running *toppath*) #f))
  (server-url        (if *toppath* (server:check-if-running *toppath*))) ;; (server:check-if-running *toppath*) #f))
  (last-server-check 0)  ;; last time we checked to see if the server was alive
  (conndat           #f)
  (transport         *transport-type*)
  (server-timeout    (or (server:get-timeout) 100))) ;; default to 100 seconds

;; launching and hosts
(defstruct host

;; WARNING: This proc operates assuming that it is in the directory above the
;;          logs directory you wish to log-rotate.
;;
(define (common:rotate-logs)
  (if (not (directory-exists? "logs"))(create-directory "logs"))
  (directory-fold 
   (lambda (file rem)
     (handle-exceptions
      exn
      (debug:print-info 0 *default-log-port* "failed to rotate log " file ", probably handled by another process.")
      (let* ((fullname (conc "logs/" file))
             (file-age (- (current-seconds)(file-modification-time fullname))))
     (if (and (string-match "^.*.log" file)
	      (> (file-size (conc "logs/" file)) 200000))
	 (let ((gzfile (conc "logs/" file ".gz")))
	   (if (file-exists? gzfile)
	       (begin
		 (debug:print-info 0 *default-log-port* "removing " gzfile)
		 (delete-file gzfile)))
	   (debug:print-info 0 *default-log-port* "compressing " file)
	   (system (conc "gzip logs/" file)))))
        (if (or (and (string-match "^.*.log" file)
                     (> (file-size fullname) 200000))
                (and (string-match "^server-.*.log" file)
                     (> (- (current-seconds) (file-modification-time fullname))
                        (* 8 60 60))))
            (let ((gzfile (conc fullname ".gz")))
              (if (file-exists? gzfile)
                  (begin
                    (debug:print-info 0 *default-log-port* "removing " gzfile)
                    (delete-file gzfile)))
              (debug:print-info 0 *default-log-port* "compressing " file)
              (system (conc "gzip " fullname)))
            (if (> file-age (* (string->number (or (configf:lookup *configdat* "setup" "log-expire-days") "30")) 24 3600))
                (handle-exceptions
                 exn
                 #f
                 (delete-file fullname)))))))
   '()
   "logs"))

;; Force a megatest cleanup-db if version is changed and skip-version-check not specified
;;
(define (common:exit-on-version-changed)
  (if (common:version-changed?)

(define *wdnum* 0)
(define *wdnum*mutex (make-mutex))
;; currently the primary job of the watchdog is to run the sync back to megatest.db from the db in /tmp
;; if we are on the homehost and we are a server (by definition we are on the homehost if we are a server)
;;
(define (common:watchdog)
  
  (thread-sleep! 0.05) ;; delay for startup
  (let ((legacy-sync (common:run-sync?))
	(debug-mode  (debug:debug-mode 1))
	(last-time   (current-seconds))
        (this-wd-num     (begin (mutex-lock! *wdnum*mutex) (let ((x *wdnum*)) (set! *wdnum* (add1 *wdnum*)) (mutex-unlock! *wdnum*mutex) x)))
        (this-wd-num     (begin (mutex-lock! *wdnum*mutex) (let ((x *wdnum*)) (set! *wdnum* (add1 *wdnum*)) (mutex-unlock! *wdnum*mutex) x))))
        )
    (debug:print-info 0 *default-log-port* "watchdog starting. legacy-sync is " legacy-sync" pid="(current-process-id)" this-wd-num="this-wd-num)
    (if (and legacy-sync (not *time-to-exit*))
	(let ((dbstruct (db:setup)))
	(let* ((dbstruct (db:setup))
	       (mtdb     (dbr:dbstruct-mtdb dbstruct))
	       (mtpath   (db:dbdat-get-path mtdb)))
	  (debug:print-info 0 *default-log-port* "Server running, periodic sync started.")
	  (let loop ()
            ;;(BB> "watchdog loop.  pid="(current-process-id)" this-wd-num="this-wd-num" *time-to-exit*="*time-to-exit*)
	    ;; sync for filesystem local db writes
	    ;;
	    (mutex-lock! *db-multi-sync-mutex*)
	    (let* ((need-sync        (>= *db-last-access* *db-last-sync*)) ;; no sync since last write
		   (sync-in-progress *db-sync-in-progress*)
		   (should-sync      (and (not *time-to-exit*)
                                          (> (- (current-seconds) *db-last-sync*) 5))) ;; sync every five seconds minimum
		   (start-time       (current-seconds))
		   (mt-mod-time      (file-modification-time mtpath))
		   (recently-synced  (> (- start-time mt-mod-time) 4))
		   (will-sync        (and (or need-sync should-sync)
					  (not sync-in-progress)))
		   (start-time       (current-seconds)))
					  (not sync-in-progress)
					  (not recently-synced))))
	      ;; (if recently-synced (debug:print-info 0 *default-log-port* "Skipping sync due to recently-synced flag=" recently-synced))
	      ;; (debug:print-info 0 *default-log-port* "need-sync: " need-sync " sync-in-progress: " sync-in-progress " should-sync: " should-sync " will-sync: " will-sync)
	      (if will-sync (set! *db-sync-in-progress* #t))
	      (mutex-unlock! *db-multi-sync-mutex*)
	      (if will-sync
		  (let ((res (common:sync-to-megatest.db dbstruct))) ;; did we sync any data? If so need to set the db touched flag to keep the server alive
		    (if (> res 0) ;; some records were transferred, keep the db alive
			(begin

      (exit)))

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

(if (not (common:on-homehost?))
    (begin
      (debug:print 0 *default-log-port* "ERROR: Current policy requires running dashboard on homehost: " (common:get-homehost))))
    
;; TODO: Move this inside (main)
;;
(if (not (launch:setup))
    (begin
      (print "Failed to find megatest.config, exiting") 
      (exit 1)))

;;======================================================================
;; Database access
;;======================================================================

;; dbstruct vector containing all the relevant dbs like main.db, megatest.db, run.db etc

(use (srfi 18) extras tcp stack) ;; RADT => use of require-extension?
(use sqlite3 srfi-1 posix regex regex-case srfi-69 csv-xml s11n md5 message-digest base64 format dot-locking z3 typed-records sql-null)
(use (srfi 18) extras tcp stack)
(use sqlite3 srfi-1 posix regex regex-case srfi-69 csv-xml s11n md5 message-digest base64 format dot-locking z3 typed-records sql-null matchable)
(import (prefix sqlite3 sqlite3:))
(import (prefix base64 base64:)) ;; RADT => prefix??
(import (prefix base64 base64:))
(include "/nfs/site/disks/icf_fdk_cw_gwa002/srehman/fossil/dbi/dbi.scm")
(import (prefix dbi dbi:))

(declare (unit db))
(declare (uses common))
(declare (uses keys))
(declare (uses ods))

		    (db:dbdat-get-db dbdat)
		    dbstruct))
	 (use-mutex (> *api-process-request-count* 25)))
    (if (and use-mutex
	     (common:low-noise-print 120 "over-50-parallel-api-requests"))
	(debug:print-info 0 *default-log-port* *api-process-request-count* " parallel api requests being processed in process " (current-process-id) ", throttling access"))
    (if (common:low-noise-print 600 (conc "parallel-api-requests" *max-api-process-requests*))
	(debug:print-info 0 *default-log-port* "Parallel api request count: " *api-process-request-count* " max parallel requests: " *max-api-process-requests*))
	(debug:print-info 2 *default-log-port* "Parallel api request count: " *api-process-request-count* " max parallel requests: " *max-api-process-requests*))
    (handle-exceptions
     exn
     (begin
       (print-call-chain (current-error-port))
       (debug:print-error 0 *default-log-port* "sqlite3 issue in db:with-db, dbstruct=" dbstruct ", run-id=" run-id ", proc=" proc ", params=" params " error: " ((condition-property-accessor 'exn 'message) exn))
       ;; there is no recovering at this time. exit
       (exit 50))

       '("comment"        "TEXT")
       '("fail_count"     "INTEGER")
       '("pass_count"     "INTEGER"))

     (list "test_meta"
	   '("id"             "INTEGER" 'key)
	   '("testname"       "TEXT")
     '("author"       "TEXT")
	   '("owner"          "TEXT")
	   '("description"    "TEXT")
	   '("reviewed"       "INTEGER")
	   '("reviewed"       "TEXT")
	   '("iterated"       "TEXT")
	   '("avg_runtime"    "REAL")
	   '("avg_disk"       "REAL")
	   '("tags"           "TEXT")
	   '("jobgroup"       "TEXT")))))

(define (db:sync-all-tables-list dbstruct)

		      "\"\n")
	 (exit) ;; we can not safely continue when a db was corrupted - even if fixed.
	 )
       ;; test read/write access to the database
       (let ((db (dbi:open 'sqlite3 (cons (cons ('dbname dbpath) '())))))
	 (cond
	  ((equal? fname "megatest.db")
	   (sqlite3:executeute db "DELETE FROM tests WHERE state='DELETED';"))
	   (sqlite3:execute db "DELETE FROM tests WHERE state='DELETED';"))
	  ((equal? fname "main.db")
	   (sqlite3:executeute db "DELETE FROM runs WHERE state='deleted';"))
	   (sqlite3:execute db "DELETE FROM runs WHERE state='deleted';"))
	  ((string-match "\\d.db" fname)
	   (sqlite3:executeute db "UPDATE tests SET state='DELETED' WHERE state='DELETED';"))
	   (sqlite3:execute db "UPDATE tests SET state='DELETED' WHERE state='DELETED';"))
	  ((equal? fname "monitor.db")
	   (sqlite3:executeute "DELETE FROM servers WHERE state LIKE 'defunct%';"))
	   (sqlite3:execute "DELETE FROM servers WHERE state LIKE 'defunct%';"))
	  (else
	   (sqlite3:executeute db "vacuum;")))
	   (sqlite3:execute db "vacuum;")))
	 
	 (dbi:close db)
	 (sqlite3:finalize! db)
	 #t))))))
    
;; tbls is ( ("tablename" ( "field1" [#f|proc1] ) ( "field2" [#f|proc2] ) .... ) )
;; db's are dbdat's
;;
;; if last-update specified ("field-name" . time-in-seconds)
;;    then sync only records where field-name >= time-in-seconds

  (if (not (launch:setup))
      (debug:print 0 *default-log-port* "ERROR: not able to setup up for megatest.")
      (let* ((mtdb     (dbr:dbstruct-mtdb dbstruct))
	         (tmpdb    (db:get-db dbstruct))
             (refndb   (dbr:dbstruct-refndb dbstruct))
             (slave-dbs (dbr:dbstruct-slave-dbs dbstruct))
	     (allow-cleanup #t) ;; (if run-ids #f #t))
	     (tdbdat  (tasks:open-db))
	     (servers (tasks:get-all-servers (db:delay-if-busy tdbdat)))
	     ;; (tdbdat  (tasks:open-db))
	     (servers (server:get-list *toppath*)) ;; (tasks:get-all-servers (db:delay-if-busy tdbdat)))
	     (data-synced 0)) ;; count of changed records (I hope)
    
	;; kill servers
	(if (member 'killservers options)
	    (for-each
	     (lambda (server)
	       (tasks:server-delete-record (db:delay-if-busy tdbdat) (vector-ref server 0) "dbmigration")
	       (tasks:kill-server (vector-ref server 2)(vector-ref server 1)))
	       (match-let (((mod-time host port start-time pid) server))
		 (if (and host pid)
		     (tasks:kill-server host pid))))
	     servers))

	;; clear out junk records
	;;
	(if (member 'dejunk options)
	    (begin
	      (db:delay-if-busy mtdb) ;; ok to delay on mtdb

	(lambda (run-id)
	  (set! run-ids (cons run-id run-ids)))
	db
	"SELECT id FROM runs WHERE state != 'deleted' ORDER BY event_time DESC;")
    (reverse run-ids)))))

;; get some basic run stats
;;
;; data structure:
;;
;; ( (runname (( state  count ) ... ))
;;   (   ...  
;;   (   ...
;;
(define (db:get-run-stats dbstruct)
  (let* ((totals       (make-hash-table))
	 (curr         (make-hash-table))
	 (res          '())
	 (runs-info    '()))
    ;; First get all the runname/run-ids
    (db:with-db

;;======================================================================

(use format)
(require-library iup)
(import (prefix iup iup:))
(use canvas-draw)
(import canvas-draw-iup)
(use regex typed-records)
(use regex typed-records matchable)

(declare (unit dcommon))

(declare (uses megatest-version))
(declare (uses gutils))
(declare (uses db))
(declare (uses synchash))

				     #:numcol 7
				     #:numcol-visible 7
				     #:numlin-visible 5
				     ))
	 (colnames       (list "Id" "MTver" "Pid" "Host" "Interface:OutPort" "RunTime" "State" "RunId"))
	 (updater        (lambda ()
			   (if (dashboard:monitor-changed? commondat tabdat)
			       (let ((servers  (server:get-list *toppath* limit: 10)))
			       (let ((servers (tasks:get-all-servers (db:delay-if-busy tdbdat))))
				 ;; (tasks:get-all-servers (db:delay-if-busy tdbdat))))
				 (iup:attribute-set! servers-matrix "NUMLIN" (length servers))
				 ;; (set! colnum 0)
				 ;; (for-each (lambda (colname)
				 ;;    	 ;; (print "colnum: " colnum " colname: " colname)
				 ;;    	 (iup:attribute-set! servers-matrix (conc "0:" colnum) colname)
				 ;;    	 (set! colnum (+ 1 colnum)))
				 ;;           colnames)
				 (set! rownum 1)
				 (for-each 
				  (lambda (server)
				    (set! colnum 0)
				    (match-let (((mod-time host port start-time pid)
						 server))
				      (let* ((uptime  (- (current-seconds) mod-time))
					     (runtime (if start-time
							  (- mod-time start-time)
							  0))
				    (let* ((vals (list (vector-ref server 0) ;; Id
						       (vector-ref server 9) ;; MT-Ver
						       (vector-ref server 1) ;; Pid
						       (vector-ref server 2) ;; Hostname
						       (conc (vector-ref server 3) ":" (vector-ref server 4)) ;; IP:Port
					     (vals (list "-"  ;; (vector-ref server 0) ;; Id
							 "-"  ;; (vector-ref server 9) ;; MT-Ver
							 pid  ;; (vector-ref server 1) ;; Pid
							 host ;; (vector-ref server 2) ;; Hostname
							 (conc host ":" port) ;; (conc (vector-ref server 3) ":" (vector-ref server 4)) ;; IP:Port
						       (seconds->hr-min-sec (- (current-seconds)(vector-ref server 6)))
						       ;; (vector-ref server 5) ;; Pubport
							 (seconds->hr-min-sec runtime) ;; (- (current-seconds) start-time)) ;; (vector-ref server 6)))
						       ;; (vector-ref server 10) ;; Last beat
						       ;; (vector-ref server 6) ;; Start time
							 (cond
							  ((< uptime 5)  "alive")
						       ;; (vector-ref server 7) ;; Priority
						       ;; (vector-ref server 8) ;; State
						       (vector-ref server 8) ;; State
						       (vector-ref server 12)  ;; RunId
						       )))
				      (for-each (lambda (val)
						  (let* ((row-col (conc rownum ":" colnum))
							 (curr-val (iup:attribute servers-matrix row-col)))
						    (if (not (equal? (conc val) curr-val))
							(begin
							  (iup:attribute-set! servers-matrix row-col val)
							  (iup:attribute-set! servers-matrix "FITTOTEXT" (conc "C" colnum))))
						    (set! colnum (+ 1 colnum))))
						vals)
				      (set! rownum (+ rownum 1)))
				    (iup:attribute-set! servers-matrix "REDRAW" "ALL"))
				  servers))))))
							  ((< uptime 16) "probably alive");; less than 15 seconds since mod, call it alive (vector-ref server 8) ;; State
							  (else "dead"))
							 "-" ;; (vector-ref server 12)  ;; RunId
							 )))
					(for-each (lambda (val)
						    (let* ((row-col (conc rownum ":" colnum))
							   (curr-val (iup:attribute servers-matrix row-col)))
						      (if (not (equal? (conc val) curr-val))
							  (begin
							    (iup:attribute-set! servers-matrix row-col val)
							    (iup:attribute-set! servers-matrix "FITTOTEXT" (conc "C" colnum))))
						      (set! colnum (+ 1 colnum))))
						  vals)
					(set! rownum (+ rownum 1)))
				      (iup:attribute-set! servers-matrix "REDRAW" "ALL")))
				    (sort servers (lambda (a b)(> (car a)(car b))))))))))
    (set! colnum 0)
    (for-each (lambda (colname)
		(iup:attribute-set! servers-matrix (conc "0:" colnum) colname)
		(iup:attribute-set! servers-matrix "FITTOTEXT" (conc "C" colnum))
		(set! colnum (+ colnum 1)))
	      colnames)
    ;; (set! dashboard:update-servers-table updater) 

(declare (unit diff-report))
(declare (uses common))
(declare (uses rmt))
         
(include "common_records.scm")
(use matchable)
(use fmt)
(use ducttape-lib)
(define css "")

(define (diff:tests-mindat->hash tests-mindat)
  (let* ((res (make-hash-table)))
    (for-each
     (lambda (item)
       (let* ((test-name+item-path (cons (list-ref item 0) (list-ref item 1)))
              (value (list-ref item 2)))
         (hash-table-set! res test-name+item-path value)))
     tests-mindat)
    res))

;; return 1 if status1 is better
;; return 0 if status1 and 2 are equally good
;; return -1 if status2 is better
(define (diff:status-compare3 status1 status2)
  (let*
      ((status-goodness-ranking  (list "PASS" "WARN" "WAIVED" "SKIP" "FAIL" "ABORT" #f))
       (mem1 (member status1 status-goodness-ranking))
       (mem2 (member status2 status-goodness-ranking))
       )
    (cond
     ((and (not mem1) (not mem2)) 0)
     ((not mem1) -1)
     ((not mem2) 1)
     ((= (length mem1) (length mem2)) 0)
     ((> (length mem1) (length mem2)) 1)
     (else -1))))


(define (diff:xor-tests-mindat src-tests-mindat dest-tests-mindat #!key (hide-clean #f) (consistent-fail-not-clean #f))
  (let* ((src-hash (diff:tests-mindat->hash src-tests-mindat))
         (dest-hash (diff:tests-mindat->hash dest-tests-mindat))
         (all-keys
          (reverse (sort 
           (delete-duplicates
            (append (hash-table-keys src-hash) (hash-table-keys dest-hash)))

           (lambda (a b) 
             (cond
              ((< 0 (string-compare3 (car a) (car b))) #t)
              ((> 0 (string-compare3 (car a) (car b))) #f)
              ((< 0 (string-compare3 (cdr a) (cdr b))) #t)
              (else #f)))

           ))))
    (let ((res
           (map ;; TODO: rename xor to delta globally in dcommon and dashboard
            (lambda (key)
              (let* ((test-name (car key))
                     (item-path (cdr key))

                     (dest-value    (hash-table-ref/default dest-hash key (list 0 "NULL" "NULL"))) ;; (list test-id state status)
                     (dest-test-id  (list-ref dest-value 0))
                     (dest-state    (list-ref dest-value 1))
                     (dest-status   (list-ref dest-value 2))

                     (src-value     (hash-table-ref/default src-hash key (list 0 "NULL" "NULL")))   ;; (list test-id state status)
                     (src-test-id   (list-ref src-value 0))
                     (src-state     (list-ref src-value 1))
                     (src-status    (list-ref src-value 2))

                     (incomplete-statuses '("DELETED" "INCOMPLETE" "STUCK/DEAD" "N/A")) ;; if any of these statuses apply, treat test as incomplete

                     (dest-complete
                      (and dest-value dest-state dest-status
                           (equal? dest-state "COMPLETED")
                           (not (member dest-status incomplete-statuses))))
                     (src-complete
                      (and src-value src-state src-status
                           (equal? src-state "COMPLETED")
                           (not (member src-status incomplete-statuses))))
                     (status-compare-result (diff:status-compare3 src-status dest-status))
                     (xor-new-item
                      (cond
                       ;; complete, for this case means: state=compelte AND status not in ( deleted uncomplete stuck/dead n/a )
                       ;; neither complete -> bad

                       ;; src !complete, dest complete -> better
                       ((and (not dest-complete) (not src-complete))
                        (list dest-test-id "BOTH-BAD" "BOTH-INCOMPLETE") src-value dest-value)
                       ((not dest-complete)
                        (list src-test-id "NOT-IN-DEST" "DEST-INCOMPLETE") src-value dest-value)  
                       ((not src-complete)
                        (list dest-test-id "NOT-IN-SRC" "SRC-INCOMPLETE") src-value dest-value)      
                       ((and
                         (equal? src-state dest-state)
                         (equal? src-status dest-status))
                        (if (and consistent-fail-not-clean (not (member dest-status '("PASS" "SKIP" "WAIVED" "WARN"))))
                            (list dest-test-id  (conc "BOTH-BAD") (conc "CLEAN-" dest-status) src-value dest-value)
                            (list dest-test-id  (conc "CLEAN") (conc "CLEAN-" dest-status) src-value dest-value)))
                       ;;    better or worse: pass > warn > waived > skip > fail > abort
                       ;;     pass > warn > waived > skip > fail > abort
                       
                       ((= 1 status-compare-result) ;; src is better, dest is worse
                        (list dest-test-id "WORSE" (conc src-status "->" dest-status) src-value dest-value))
                       (else
                        (list dest-test-id "BETTER" (conc src-status "->" dest-status) src-value dest-value)))))
                (list test-name item-path  xor-new-item)))
            all-keys)))

      (if hide-clean
          (filter
           (lambda (item)
             (not
              (equal?
               "CLEAN"
               (list-ref (list-ref item 2) 1))))
           res)
          res))))

(define (diff:run-name->run-id run-name)
  (if (number? run-name)
      run-name
      (let* ((qry-res (rmt:get-runs run-name 1 0 '())))
        (if (eq? 2 (vector-length qry-res))
            (vector-ref (car (vector-ref qry-res 1)) 1)
            #f))))

(define (diff:target+run-name->run-id target run-name)
  (let* ((keys (rmt:get-keys))
         (target-parts (if target (string-split target "/") (map (lambda (x) "%") keys))))
    (if (not (eq? (length keys) (length keys)))
        (begin
          (print "Error: Target ("target") item count does not match fields count target tokens="target-parts" fields="keys)
          #f)
        (let* ((target-map (zip keys target-parts))
               (qry-res (rmt:get-runs run-name 1 0 target-map)))

          (if (eq? 2 (vector-length qry-res))
              (let ((first-ent (vector-ref qry-res 1)))
                (if (> (length first-ent) 0)
                    (vector-ref (car first-ent) 1)
                    #f))
              #f)))))

(define (diff:run-id->tests-mindat run-id #!key (testpatt "%/%"))
  (let* ((states '())
         (statuses '())
         (offset #f)
         (limit #f)
         (not-in #t)
         (sort-by #f)
         (sort-order #f)
         (qryvals "id,testname,item_path,state,status")
         (qryvals "id,testname,item_path,state,status")
         (last-update 0)
         (mode #f)
         )
    (map
     ;; (lambda (row)
     ;;   (match row
     ;;     ((#(id test-name item-path state status)
     ;;       (list test-name item-path (list id state status))))
     ;;     (else #f)))
     (lambda (row)
       (let* ((id        (vector-ref row 0))
              (test-name  (vector-ref row 1))
              (item-path (vector-ref row 2))
              (state     (vector-ref row 3))
              (status    (vector-ref row 4)))
             (list test-name item-path (list id state status))))
     
     (rmt:get-tests-for-run run-id
                            testpatt states statuses
                            offset limit
                            not-in sort-by sort-order
                            qryvals
                            last-update
                            mode))))


(define (diff:diff-runs src-run-id dest-run-id)
  (let* ((src-tests-mindat  (diff:run-id->tests-mindat src-run-id))
         (dest-tests-mindat (diff:run-id->tests-mindat dest-run-id)))
    (diff:xor-tests-mindat src-tests-mindat dest-tests-mindat consistent-fail-not-clean: #t)))


(define (diff:rundiff-find-by-state run-diff state)
    (filter
     (lambda (x)
       (equal? (list-ref (caddr x) 1) state))
     run-diff))

(define (diff:rundiff-clean-breakdown run-diff)
  (map
   (lambda (run-diff-item)
     (match run-diff-item
       ((test-name item-path (junk-id diff-state diff-status (src-test-id src-state src-status) (dest-test-id dest-state dest-status)))
        (list test-name item-path "CLEAN" src-status))
       (else "")))
   (diff:rundiff-find-by-state run-diff "CLEAN")))
  
(define (diff:summarize-run-diff run-diff)
  
  (let* ((diff-states (list "CLEAN" "BETTER" "WORSE" "BOTH-BAD" "NOT-IN-DEST" "NOT-IN-SRC" )))
    (map
     (lambda (state)
       (list state 
             (length (diff:rundiff-find-by-state run-diff state))))
     diff-states)))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Presentation code below, business logic above ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(define (diff:stml->string in-stml)
  (with-output-to-string
    (lambda ()
      (s:output-new
       (current-output-port)
       in-stml))))

(define (diff:state-status->bgcolor state status)
  (match (list state status)
    (("CLEAN"           _) "#88ff88")
    (("BETTER"          _) "#33ff33")
    (("WORSE"           _) "#ff3333")
    (("BOTH-BAD"        _) "#ff3333")
    ((_            "WARN") "#ffff88")
    ((_            "FAIL") "#ff8888")
    ((_           "ABORT") "#ff0000")
    ((_            "PASS") "#88ff88")
    ((_            "SKIP") "#ffff00")           
    (else                  "#ffffff")))

(define (diff:test-state-status->diff-report-cell state status)
  (s:td 'bgcolor (diff:state-status->bgcolor state status) status))

(define (diff:diff-state-status->diff-report-cell state status)
  (s:td state 'bgcolor (diff:state-status->bgcolor state status)))


(define (diff:megatest-html-logo)

  "<pre>
___  ___                 _            _
|  \\/  | ___  __ _  __ _| |_ ___  ___| |_
| |\\/| |/ _ \\/ _` |/ _` | __/ _ \\/ __| __|
| |  | |  __/ (_| | (_| | ||  __/\\__ \\ |_
|_|  |_|\\___|\\__, |\\__,_|\\__\\___||___/\\__|
             |___/
</pre>")

(define (diff:megatest-html-diff-logo)
  "<pre>
___  ___                 _            _
|  \\/  | ___  __ _  __ _| |_ ___  ___| |_  |  _ \\(_)/ _|/ _|
| |\\/| |/ _ \\/ _` |/ _` | __/ _ \\/ __| __| | | | | | |_| |_
| |  | |  __/ (_| | (_| | ||  __/\\__ \\ |_  | |_| | |  _|  _|
|_|  |_|\\___|\\__, |\\__,_|\\__\\___||___/\\__| |____/|_|_| |_|
             |___/
</pre>")


(define (diff:run-id->target+run-name+starttime run-id)
  (let* ((target      (rmt:get-target run-id))
         (runinfo     (rmt:get-run-info run-id)) ; vector of header (list) and result (vector)
         (info-hash   (alist->hash-table
                       (map (lambda (x) (cons (car x) (cadr x)))  ; make it a useful hash
                            (zip (vector-ref runinfo 0) (vector->list (vector-ref runinfo 1))))))
         (run-name    (hash-table-ref/default info-hash "runname" "N/A"))
         (start-time  (hash-table-ref/default info-hash "event_time" 0)))
    (list target run-name start-time)))

(define (diff:deliver-diff-report src-run-id dest-run-id
                                    #!key
                                    (html-output-file #f)
                                    (email-subject-prefix "[MEGATEST DIFF]")
                                    (email-recipients-list '())  )
  (let* ((src-info         (diff:run-id->target+run-name+starttime src-run-id))
         (src-target       (car src-info))
         (src-run-name     (cadr src-info))
         (src-start        (conc (seconds->string (caddr src-info)) " " (local-timezone-abbreviation)))
         (dest-info        (diff:run-id->target+run-name+starttime dest-run-id))
         (dest-target      (car dest-info))
         (dest-run-name    (cadr dest-info))
         (dest-start       (conc (seconds->string (caddr dest-info)) " " (local-timezone-abbreviation)))


         (run-diff (diff:diff-runs src-run-id dest-run-id ))
         (test-count (length run-diff))
         (summary-table
          (apply s:table 'cellspacing "0" 'border "1"
                 (s:tr
                  (s:th "Diff type")
                  (s:th "% share")
                  (s:th "Count"))
                 
                 (map
                  (lambda (state-count)
                    (s:tr
                     (diff:diff-state-status->diff-report-cell (car state-count) #f)
                     (s:td 'align "right" (fmt #f
                                (decimal-align 3
                                               (fix 2
                                                    (num/fit 6
                                                             (* 100 (/ (cadr state-count) test-count)))))))
                     (s:td 'align "right" (cadr state-count))))
                  (diff:summarize-run-diff run-diff))))
         (meta-table
          (s:table 'cellspacing "0" 'border "1"
                   
           (s:tr
            (s:td 'colspan "2"
                  (s:table 'cellspacing "0" 'border "1"
                           (s:tr
                            (s:th 'align "LEFT" "")          (s:th "SOURCE RUN")     (s:th "DESTINATION RUN"))
                           (s:tr
                            (s:th 'align "LEFT" "Started")  (s:td src-start)  (s:td dest-start))
                           (s:tr
                            (s:th 'align "LEFT" "TARGET")  (s:td src-target)  (s:td dest-target))
                           (s:tr
                            (s:th 'align "LEFT" "RUN NAME")  (s:td src-run-name)  (s:td dest-run-name)))))))
           
         (main-table
          (apply s:table 'cellspacing "0" 'border "1"
                 (s:tr
                  (s:th "Test name")
                  (s:th "Item Path")
                  (s:th (conc "SOURCE"))
                  (s:th (conc "DEST"))
                  (s:th "Diff"))
                 (map
                  (lambda (run-diff-item)
                    (match run-diff-item
                      ((test-name item-path (junk-id diff-state diff-status (src-test-id src-state src-status) (dest-test-id dest-state dest-status)))
                       (s:tr
                        (s:td test-name)
                        (s:td item-path)
                        (diff:test-state-status->diff-report-cell src-state src-status)
                        (diff:test-state-status->diff-report-cell dest-state dest-status)
                        (diff:diff-state-status->diff-report-cell diff-state diff-status)))
                      (else "")))
                  (filter (lambda (run-diff-item)
                            (match run-diff-item
                              ((test-name item-path (junk-id diff-state diff-status (src-test-id src-state src-status) (dest-test-id dest-state dest-status)))
                               (not (equal? diff-state "CLEAN")))
                              (else #f)))
                            run-diff))))
         (email-subject (conc email-subject-prefix " " src-target "/" src-run-name" vs. "dest-target"/"dest-run-name))
         (html-body     (diff:stml->string (s:body
                   (diff:megatest-html-diff-logo)
                   (s:h2 "Summary")
                   (s:table 'border "0"
                            (s:tr
                             (s:td "Diff calculated at")
                             (s:td (conc (seconds->string) " " (local-timezone-abbreviation))))
                            (s:tr
                             (s:td "MT_RUN_AREA_HOME" ) (s:td *toppath*))
                            (s:tr 'valign "TOP"
                     (s:td summary-table)
                     (s:td meta-table)))
                   (s:h2 "Diffs + consistently failing tests")
                   main-table)))

         )
    (if html-output-file
        (with-output-to-file html-output-file (lambda () (print html-body))))
    (when (and email-recipients-list (> (length email-recipients-list) 0))
      (sendmail (string-join email-recipients-list ",") email-subject html-body use_html: #t))
    html-body))
      

  


;; (let* ((src-run-name "all57")
;;        (dest-run-name "all60")
;;        (src-run-id (diff:run-name->run-id src-run-name))
;;        (dest-run-id (diff:run-name->run-id dest-run-name))
;;        (to-list (list "bjbarcla")))
;;   (diff:deliver-diff-report src-run-id dest-run-id email-recipients-list: to-list html-output-file: "/tmp/bjbarcla/zippy.html")
;;   )

(define (do-diff-report src-target src-runname dest-target dest-runname html-file to-list-raw)
  (let* (;;(src-target "nope%")
         ;;(src-runname "all57")
         ;;(dest-target "%")
         ;;(dest-runname "all60")
         (src-run-id (diff:target+run-name->run-id src-target src-runname))
         (dest-run-id (diff:target+run-name->run-id dest-target dest-runname))
         ;(html-file "/tmp/bjbarcla/zippy.html")
         (to-list (if (string? to-list-raw) (string-split to-list-raw ",:") #f))
         )
    
    (cond
     ((not src-run-id)
      (print "No match for source target/runname="src-target"/"src-runname)
      (print "Cannot proceed.")
      #f)
     ((not dest-run-id)
      (print "No match for source target/runname="dest-target"/"dest-runname)
      (print "Cannot proceed.")
      #f)
     (else
      (diff:deliver-diff-report src-run-id dest-run-id email-recipients-list: to-list html-output-file: html-file)))))

  

help:
	@echo ""
	@echo "make targets:"
	@echo "============="
	@echo "install      - build and install general_lib egg as icfadm"
	@echo "test         - run unit tests on ducttape-lib.scm (tests code, not egg)"
	@echo "eggs-info     - show chicken-install commands to get eggs upon which ducttape-lib depends"
	@echo "test_example - compile an example scm against installed general_lib egg"
	@echo "clean        - remove binaries and other build artifacts"
	@echo ""

clean:
	rm -f *.so *.import.scm test_ducttape test_example foo *.c *.o

install:
	chicken-install

test:
	chicken-install -no-install
	csc test_ducttape.scm

	./test_ducttape
	rm -f foo

test_example:
	@csc test_example.scm
	@./test_example
	@rm test_example

eggs-info:
	@echo chicken-install ansi-escape-sequences
	@echo chicken-install slice
	@echo chicken-install rfc3339

This directory holds the "ducttape" chicken scheme egg used by megatest.

Run "make test" to ensure this egg works on your system.

Run "make install" as your admin user with chicken on your $PATH to install this egg.

;;; ducttape-lib.meta -*- Hen -*-

((egg "ducttape-lib.egg")
 (synopsis "Miscellaneous tool and standard print routines.")
 (category env)
 (author "Brandon Barclay")
 (doc-from-wiki)
 (license "GPL-2")
 ;; srfi-69, posix, srfi-18
 (depends regex)
 (test-depends test)
 ; suspicious - (files "ducttape-lib")
 )

(module ducttape-lib
    (
     runs-ok
     ducttape-debug-level
     ducttape-debug-regex-filter
     ducttape-silent-mode
     ducttape-quiet-mode
     ducttape-log-file
     ducttape-color-mode
     iputs-preamble
     script-name
     idbg
     ierr
     iwarn
     inote
     iputs
     re-match?
                                        ;     launch-repl
     keyword-skim
     skim-cmdline-opts-noarg-by-regex
     skim-cmdline-opts-withargs-by-regex 
     concat-lists
     ducttape-process-command-line
     ducttape-append-logfile
     ducttape-activate-logfile
     isys
     do-or-die
     counter-maker
     dir-is-writable?
     mktemp
     get-tmpdir
     sendmail
     find-exe

     zeropad
     string-leftpad
     string-rightpad
     seconds->isodate
     seconds->wwdate
     seconds->wwdate-values
     isodate->seconds
     isodate->wwdate
     wwdate->seconds
     wwdate->isodate
     current-wwdate
     current-isodate
     
     )

  (import scheme chicken extras ports data-structures )
  (use posix regex ansi-escape-sequences test srfi-1 irregex slice srfi-13 rfc3339)
  ;;scsh-process ;; dropping scsh-process, it was clobbering posix's process and process*
  (use directory-utils uuid-lib filepath srfi-19 ) ; linenoise
  
  (include "mimetypes.scm") ; provides ext->mimetype
  (include "workweekdate.scm")
  (define ducttape-lib-version 1.00)
  (define (toplevel-command sym proc) (lambda () #f))
;;;; utility procedures

  ;; begin credit: megatest's process.scm
  (define (port->list fh )
    (if (eof-object? fh) #f
        (let loop ((curr (read-line fh))
                   (result '()))
          (if (not (eof-object? curr))
              (loop (read-line fh)
                    (append result (list curr)))
              result))))

  (define (conservative-read port)
    (let loop ((res ""))
      (if (not (eof-object? (peek-char port)))
          (loop (conc res (read-char port)))
          res)))
  ;; end credit: megatest's process.scm

  (define (counter-maker)
    (let ((acc 0))
      (lambda ( #!optional (increment 1) )
        (set! acc (+ increment acc))
        acc)))

  (define (port->string port #!optional ) ; todo - add newline 
    (let ((linelist (port->list port)))
      (if linelist
          (string-join linelist "\n")
          "")))


  (define (outport->foreach outport foreach-thunk)
    (let loop ((line (foreach-thunk)))
      (if line
          (begin
            (write-line line outport)
            (loop (foreach-thunk))
            )
          (begin
            ;;http://bugs.call-cc.org/ticket/766
            ;;close-[input|output]-port implicitly calling process-wait on process pipe ports. This leads to errors like
            ;;Error: (process-wait) waiting for child process failed - No child processes: 10872
            (close-output-port outport)
            #f))))
  
  ;; weird - alist-ref arg order changes signature csc vs. csi... explitly defining.
  (define (my-alist-ref key alist)
    (let ((res (assoc key alist)))
      (if res (cdr res) #f)))

  (define (keyword-skim-alist args alist)
    (let loop ((result-alist '()) (result-args args) (rest-alist alist))
      (cond
       ((null? rest-alist) (values result-alist result-args))
       (else
        (let ((keyword (caar rest-alist))
              (defval (cdar rest-alist)))
          (let-values (((kwval result-args2)
                        (keyword-skim
                         keyword
                         defval
                         result-args)))
            (loop
             (cons (cons keyword kwval) result-alist)
             result-args2
             (cdr rest-alist))))))))
  
  (define (isys command . rest-args)
    (let-values
        (((opt-alist args)
          (keyword-skim-alist
           rest-args
           '( ( foreach-stdout-thunk: . #f )
              ( foreach-stdin-thunk: . #f )
              ( stdin-proc: . #f ) ) )))
      (let* ((foreach-stdout-thunk
              (my-alist-ref foreach-stdout-thunk: opt-alist))
             (foreach-stdin-thunk
              (my-alist-ref foreach-stdin-thunk: opt-alist))
             (stdin-proc
              (if foreach-stdin-thunk
                  (lambda (port)
                    (outport->foreach port foreach-stdin-thunk))
                  (my-alist-ref stdin-proc: opt-alist))))

        ;; TODO: support command is list.
        
        (let-values (((stdout stdin pid stderr)
                      (if (null? args)
                          (process* command)
                          (process* command args))))
          
                                        ;(if foreach-stdin-thunk
                                        ;    (set! stdin-proc
                                        ;          (lambda (port)
                                        ;            (outport->foreach port foreach-stdin-thunk))))
          
          (if stdin-proc
              (stdin-proc stdin))
          
          (let ((stdout-res 
                 (if foreach-stdout-thunk  ;; don't accumulate stdout if we have a thunk; probably doing this because stdout is BIG so lets not waste memory
                     (begin
                       (port-for-each foreach-stdout-thunk (lambda () (read-line stdout)))
                       "foreach-stdout-thunk ate stdout"
                       )
                     (if stdin-proc
                         "foreach-stdin-thunk/stdin-proc blocks stdout"
                         (port->string stdout))))
                (stderr-res
                 (if stdin-proc
                     "foreach-stdin-thunk/stdin-proc blocks stdout"
                     (port->string stderr))))

            ;; if we've used a stdin-proc, we've closed stdin port, which unfortunately causes a wait-pid internally, causing stdout and stderr ports to auto-close.  don't close them again.  (so sad - we lost stdout and stderr contents when we write to stdin)
            ;; see - http://bugs.call-cc.org/ticket/766
            (if (not stdin-proc)
                (close-input-port stdout)
                (close-input-port stderr))
            
            (let-values (((anotherpid normalexit? exitstatus)  (process-wait pid)))
              (values exitstatus stdout-res stderr-res)))))))
  
  (define (do-or-die command   #!key nodie (foreach-stdout #f) (stdin-proc #f))
    (let-values (((exit-code stdout-str stderr-str) (isys command foreach-stdout-thunk: foreach-stdout stdin-proc: stdin-proc )))
      (if (equal? 0 exit-code)
          stdout-str
          (begin
            (ierr (conc "Command  > " command " "  "< failed with " exit-code " because: \n" stderr-str) )
            (if nodie #f (exit exit-code))))))


  ;; runs-ok: evaluate expression while suppressing exceptions.
                                        ;    on caught exception, returns #f
                                        ;    otherwise, returns expression value
  (define (runs-ok thunk)
    (handle-exceptions exn #f (begin (thunk) #t)))

  ;; concat-lists: result list = lista + listb
  (define (concat-lists lista listb) ;; ok, I just reimplemented append...
    (foldr cons listb lista))
  

;;; setup general_lib env var parameters

  ;; show warning/note/error/debug prefixes using ansi colors
  (define ducttape-color-mode
    (make-parameter (get-environment-variable "DUCTTAPE_COLORIZE")))

  ;; if defined, has number value.  if number value > 0, show debug messages
  ;; value should be decremented in subshells -- idea is raising debug level will show debug messages deeper and deeper in process call stack
  (define ducttape-debug-level
    (make-parameter
     (let ( (raw-debug-level (get-environment-variable "DUCTTAPE_DEBUG_LEVEL")) )
       (if raw-debug-level
           (let ((num-debug-level (runs-ok (string->number raw-debug-level))))
             (if (integer? num-debug-level)
                 (begin
                   (let ((new-num-debug-level (- num-debug-level 1)))
                     (if (> new-num-debug-level 0) ;; decrement
                         (setenv "DUCTTAPE_DEBUG_LEVEL" (number->string new-num-debug-level))
                         (unsetenv "DUCTTAPE_DEBUG_LEVEL")))
                   num-debug-level) ; it was set and > 0, mode is value
                 (begin
                   (unsetenv "DUCTTAPE_DEBUG_LEVEL") ;; value was invalid, unset it
                   #f))) ; value was invalid, mode is f
           #f)))) ; var not set, mode is f


  (define ducttape-debug-mode (if (ducttape-debug-level)  #t  #f))

  ;; ducttape-debug-regex-filter suppresses non-matching debug messages
  (define ducttape-debug-regex-filter
    (make-parameter
     (let ((raw-debug-pattern (get-environment-variable "DUCTTAPE_DEBUG_PATTERN")))
       (if raw-debug-pattern
           raw-debug-pattern
           "."))))

  ;; silent mode suppresses Note and Warning type messages
  (define ducttape-silent-mode
    (make-parameter (get-environment-variable "DUCTTAPE_SILENT_MODE")))

  ;; quiet mode suppresses Note type messages
  (define ducttape-quiet-mode
    (make-parameter (get-environment-variable "DUCTTAPE_QUIET_MODE")))

  ;; if log file is defined, warning/note/error/debug messages are appended
  ;; to named logfile.
  (define ducttape-log-file
    (make-parameter (get-environment-variable "DUCTTAPE_LOG_FILE")))




  
  
;;; standard messages printing implementation

                                        ; get the name of the current script/binary being run
  (define (script-name)
    (car (reverse (string-split (car (argv)) "/"))))

  (define (ducttape-timestamp)
    (rfc3339->string (time->rfc3339 (seconds->local-time))))


  (define (iputs-preamble msg-type #!optional (suppress-color #f))
    (let ((do-color (and
                     (not suppress-color)
                     (ducttape-color-mode)
                     (terminal-port? (current-error-port)))))
      (case msg-type
        ((note)
         (if do-color
             (set-text (list 'fg-green 'bg-black 'bold) "Note:")
             "Note:"
             ))
        ((warn)
         (if do-color
             (set-text (list 'fg-yellow 'bg-black 'bold) "Warning:")
             "Warning:"
             ))
        ((err)
         (if do-color
             (set-text (list 'fg-red 'bg-black 'bold) "Error:")
             "Error:"
             ))
        ((dbg)
         (if do-color
             (set-text (list 'fg-blue 'bg-magenta) "Debug:")
             "Debug:"
             )))))

  (define (ducttape-append-logfile msg-type message #!optional (suppress-preamble #f))
    (let
        ((txt 
          (string-join 
           (list 
            (ducttape-timestamp) 
            (script-name)
            (if suppress-preamble
                message
                (string-join  (list (iputs-preamble msg-type #t) message) " ")))
           " | ")))

      (if (ducttape-log-file)
          (runs-ok
           (call-with-output-file (ducttape-log-file)
             (lambda (output-port)
               (format output-port "~A ~%" txt)
               )
             #:append))
          #t)))

  (define (ducttape-activate-logfile #!optional (logfile #f))
    ;; from python ducttape-lib.py
                                        ; message = "START - pid=%d ppid=%d argv=(%s) pwd=%s user=%s host=%s"%(pid,ppid," ".join("'"+x+"'" for x in sys.argv),os.environ['PWD'],os.getenv('USER','nouser'),os.getenv('HOST','nohost') )
    (let ((pid (number->string (current-process-id)))
          (ppid (number->string (parent-process-id)))
          (argv 
           (string-join 
            (map 
             (lambda (x) 
               (string-join (list "\"" x "\"")  "" ))
             (argv))
            " "))
          (pwd (or (get-environment-variable "PWD") "nopwd"))
          (user (or (get-environment-variable "USER") "nouser"))
          (host (or (get-environment-variable "HOST") "nohost")))
      (if logfile
          (begin
            (ducttape-log-file logfile)
            (setenv "DUCTTAPE_LOG_FILE" (ducttape-log-file))))
      (ducttape-append-logfile 'note (format #f "START - pid=~A ppid=~A argv=(~A) pwd=~A user=~A host=~A" pid ppid argv pwd user host) #t)))         


  ;; log exit code
  (define (set-ducttape-log-exit-handler)
    (let ((orig-exit-handler (exit-handler)))
      (exit-handler 
       (lambda (exitcode) 
         (ducttape-append-logfile 'note (format #f "Exit ~A by sys.exit" exitcode) #t)
         (orig-exit-handler exitcode)))))


  (define (idbg first-message  . rest-args)
    (let* ((debug-level-threshold
            (if (> (length rest-args) 0) (car rest-args) 1))
           (message-list
            (if (> (length rest-args) 1)
                (cons first-message (cdr rest-args))
                (list first-message)) )
           (message (apply conc
                  (map ->string message-list))))

      (ducttape-append-logfile 'dbg message)
      (if (ducttape-debug-level)
          (if (<= debug-level-threshold (ducttape-debug-level))
              (if (string-search (ducttape-debug-regex-filter) message)
                  (begin 
                    (format (current-error-port) "~A ~A (~A)~%" (iputs-preamble 'dbg) message (script-name))))))))

  (define (ierr message-first  . message-rest)
    (let* ((message
            (apply conc
             (map ->string (cons message-first message-rest)))))
      (ducttape-append-logfile 'err message)
      (format (current-error-port) "~A ~A (~A)~%" (iputs-preamble 'err) message (script-name))))

  (define (iwarn message-first  . message-rest)
    (let* ((message
            (apply conc
             (map ->string (cons message-first message-rest)))))
      (ducttape-append-logfile 'warn message)
      (if (not (ducttape-silent-mode))
          (begin
            (format (current-error-port) "~A ~A (~A)~%" (iputs-preamble 'warn) message (script-name))))))

  (define (inote message-first  . message-rest)
    (let* ((message
            (apply conc
             (map ->string (cons message-first message-rest)))))
      (ducttape-append-logfile 'note message)
      (if (not (or (ducttape-silent-mode) (ducttape-quiet-mode)))
          (begin 
            (format (current-error-port) "~A ~A (~A)~%" (iputs-preamble 'note) message (script-name))))))

  
  (define (iputs kind message #!optional (debug-level-threshold 1))
    (cond
     ((member kind (string-split "NOTE/Note/note/n/N" "/")) (inote message))
     ((member kind (string-split "Error/ERROR/error/Err/ERR/err/E/e" "/")) (ierr message))
     ((member kind
              (string-split "Warning/WARNING/warning/Warn/WARN/warn/W/w" "/"))
      (iwarn message))
     ((member kind (string-split "Debug/DEBUG/debug/Dbg/DBG/dbg/D/d" "/"))
      (idbg message debug-level-threshold))))

  (define (mkdir-recursive path-so-far hier-list-to-create)
    (if (null? hier-list-to-create)
        path-so-far
        (let* ((next-hier-item (car hier-list-to-create))
               (rest-hier-items (cdr hier-list-to-create))
               (path-to-mkdir (string-concatenate (list path-so-far "/" next-hier-item))))
          (if (runs-ok (lambda () (create-directory path-to-mkdir)))
              (mkdir-recursive path-to-mkdir rest-hier-items)
              #f))))

                                        ; ::mkdir-if-not-exists::
                                        ; make a dir recursively if it does not 
                                        ; already exist.
                                        ; on success - returns path
                                        ; on fail - returns #f
  (define (mkdirp-if-not-exists the-dir)
    (let ( (path-list (string-split the-dir "/")))
      (mkdir-recursive "/" path-list)))

                                        ; ::mkdir-if-not-exists::
                                        ; make a dir recursively if it does not 
                                        ; already exist.
                                        ; on success - returns path
                                        ; on fail - returns #f


  (define (mkdirp-if-not-exists the-dir)
    (let ( (path-list (string-split the-dir "/")))
      (mkdir-recursive "/" path-list)))

  (define (dir-is-writable? the-dir)
    (let ((dummy-file (string-concatenate (list the-dir "/.dummyfile"))))
      (and
       (file-exists? the-dir)
       (cond 
        ((runs-ok (lambda ()(with-output-to-file dummy-file (lambda () (print "foo")))))
         (begin
           (runs-ok (lambda () (delete-file dummy-file) ))
           the-dir))
        (else #f)))))


  (define (get-tmpdir )
    (let* ((tmproot
            (dir-is-writable?
             (or 
              (get-environment-variable "TMPDIR") 
              "/tmp")))

           (user
            (or
             (get-environment-variable "USER")
             "USER_Envvar_not_set"))
           (tmppath
            (string-concatenate 
             (list tmproot "/env21-general-" user ))))

      (dir-is-writable?
       (mkdirp-if-not-exists
        tmppath))))

  (define (mktemp
           #!optional
           (prefix "general_lib_tmpfile")
           (dir #f))
    (let-values
        (((fd path) 
          (file-mkstemp 
           (conc 
            (if dir  dir  (get-tmpdir))
            "/" prefix ".XXXXXX"))))
      (close-output-port (open-output-file* fd))
      path))



  ;;http://stackoverflow.com/questions/11134857/using-sendmail-for-html-body-and-binary-attachment
  ;; write send-email using:
  ;;   - isys-foreach-stdin-line
  ;;   - formatting in http://stackoverflow.com/questions/11134857/using-sendmail-for-html-body-and-binary-attachment
  (define (sendmail to_addr subject body
                    #!key
                    (from_addr "admin")
                    cc_addr
                    bcc_addr
                    more-headers
                    use_html
                    (attach-files-list '())
                    (images-with-content-id-alist '())
                    )

    (define (sendmail-proc sendmail-port)
      (define (wl line-str)
        (write-line line-str sendmail-port))

      (define (get-uuid)
        (string-upcase (uuid->string (uuid-generate))))

      (let ((mailpart-uuid (get-uuid))
            (mailpart-body-uuid (get-uuid)))
        
        (define (boundary)
          (wl (conc "--" mailpart-uuid)))

        (define (body-boundary)
          (wl (conc "--" mailpart-body-uuid)))


        (define (email-mime-header)
          (wl (conc "From: " from_addr))
          (wl (conc "To: " to_addr))
          (if cc_addr
              (wl (conc "Cc: " cc_addr)))
          (if bcc_addr
              (wl (conc "Bcc: " bcc_addr)))
          (if more-headers
              (wl more-headers))
          (wl (conc "Subject: " subject))
          (wl "MIME-Version: 1.0")
          (wl (conc "Content-Type: multipart/mixed; boundary=\"" mailpart-uuid "\""))
          (wl "")
          (boundary)
          (wl (conc "Content-Type: multipart/alternative; boundary=\"" mailpart-body-uuid "\""))
          (wl "")
          )

        
        (define (email-text-body)
          (body-boundary)
          (wl "Content-Type: text/plain; charset=ISO-8859-1")
          (wl "Content-Disposition: inline")
          (wl "")
          (wl body)
          (body-boundary))
        
        (define (email-html-body)
          (body-boundary)
          (wl "Content-Type: text/plain; charset=ISO-8859-1")
          (wl "")
          (wl "You need to enable HTML option for email")
          (body-boundary)
          (wl "Content-Type: text/html; charset=ISO-8859-1")
          (wl "Content-Disposition: inline")
          (wl "")
          (wl body)
          (body-boundary))

        (define (attach-file file #!key (content-id #f))
          (let* ((filename
                  (filepath:take-file-name file))
                 (ext-with-dot
                  (filepath:take-extension file))
                 (ext (string-take-right
                       ext-with-dot
                       (- (string-length ext-with-dot) 1)))
                 (mimetype (ext->mimetype ext))
                 (uuencode-command (conc "uuencode " file " " filename)))
            (boundary)
            (wl (conc "Content-Type: " mimetype "; name=\"" filename "\""))
            (wl "Content-Transfer-Encoding: uuencode")
            (if content-id
                (wl (conc "Content-Id: " content-id)))
            (wl (conc "Content-Disposition: attachment; filename=\"" filename "\""))
            (wl "")
            (do-or-die
             uuencode-command
             foreach-stdout:
             (lambda (line)
               (wl line)))))

        (define (embed-image file+content-id)
          (let ((file (car file+content-id))
                (content-id (cdr file+content-id)))
            (attach-file file content-id: content-id)))
        
        ;; send the email
        (email-mime-header)
        (if use_html
            (email-html-body)
            (email-text-body))
        (for-each attach-file attach-files-list)
        (for-each embed-image images-with-content-id-alist)
        (boundary)
        (close-output-port sendmail-port)))
    
    (do-or-die "/usr/sbin/sendmail -t"
               stdin-proc: sendmail-proc))

  ;; like shell "which" command
  (define (find-exe exe)
    (let* ((path-items
            (string-split
             (or
              (get-environment-variable "PATH") "")
             ":")))

      (let loop ((rest-path-items path-items))
        (if (null? rest-path-items)
            #f
            (let* ((this-dir (car rest-path-items))
                   (next-rest (cdr rest-path-items))
                   (candidate (conc this-dir "/" exe)))
              (if (file-execute-access? candidate)
                  candidate
                  (loop next-rest)))))))


;;;; process command line options

  ;; get command line switches (have no subsequent arg; eg. [-foo])
  ;;  assumes these are switches without arguments
  ;;  will return list of matches
  ;;  removes matches from command-line-arguments parameter
  (define (skim-cmdline-opts-noarg-by-regex switch-pattern)
    (let* (
           (irr (irregex switch-pattern))
           (matches (filter
                     (lambda (x)
                       (irregex-match irr x))
                     (command-line-arguments)))
           (non-matches (filter
                         (lambda (x)
                           (not (member x matches)))
                         (command-line-arguments))))

      (command-line-arguments non-matches)
      matches))

  (define (keyword-skim keyword default args #!optional (eqpred equal?))
    (let loop ( (kwval default) (args-remaining args) (args-to-return '()) )
      (cond 
       ((null? args-remaining)
        (values
         (if (list? kwval) (reverse kwval) kwval)
         (reverse args-to-return)))
       ((and (> (length args-remaining) 1) (eqpred keyword (car args-remaining)))
        (if (list? default)
            (if (equal? default kwval)
                (loop (list (cadr args-remaining)) (cddr args-remaining) args-to-return)
                (loop (cons (cadr args-remaining) kwval) (cddr args-remaining) args-to-return))
            (loop (cadr args-remaining) (cddr args-remaining) args-to-return)))
       (else (loop kwval (cdr args-remaining) (cons (car args-remaining) args-to-return))))))



  ;; get command line switches (have a subsequent arg; eg. [-foo bar])
  ;;  assumes these are switches without arguments
  ;;  will return list of arguments to matches
  ;;  removes matches from command-line-arguments parameter

  (define (re-match? re str)
    (irregex-match re str))

  (define (skim-cmdline-opts-withargs-by-regex switch-pattern)
    (let-values
        (((result new-cmdline-args)
          (keyword-skim switch-pattern
                        '()
                        (command-line-arguments)
                        re-match?
                        )))
      (command-line-arguments new-cmdline-args)
      result))
  
  

  ;; recognize ducttape-lib command line switches (--quiet, --silent, --color, -d.., -dp.., -logfile)
  ;;    - reset parameters; reset DUCTTAPE_* env vars to match user specified intent
  ;;    - mutate (command-line-arguments) parameter to subtract these recognized and handled switches
  ;;       * beware -- now (argv) and (command-line-arguments) are inconsistent... cannot mutate (argv) alas.  Use (command-line-arguments)
  ;; WARNING: this defines command line arguments that may clash with your program.  Only call this if you
  ;; are sure they can coexist.
  (define (ducttape-process-command-line)

    ;; --quiet
    (let ((quiet-opts (skim-cmdline-opts-noarg-by-regex "--?quiet")))
      (if (not (null? quiet-opts))
          (begin
            (setenv "DUCTTAPE_QUIET_MODE" "1")
            (ducttape-quiet-mode "1"))))

    ;; --silent
    (let ((silent-opts (skim-cmdline-opts-noarg-by-regex "--?silent")))
      (if (not (null? silent-opts))
          (begin
            (setenv "DUCTTAPE_SILENT_MODE" "1")
            (ducttape-silent-mode "1"))))

    ;; -color
    (let ((color-opts (skim-cmdline-opts-noarg-by-regex "--?colou?r(ize)?")))
      (if (not (null? color-opts))
          (begin
            (setenv "DUCTTAPE_COLORIZE" "1")
            (ducttape-color-mode "1"))))

    ;; -nocolor
    (let ((nocolor-opts (skim-cmdline-opts-noarg-by-regex "--?nocolou?r(ize)?")))
      (if (not (null? nocolor-opts))
          (begin
            (unsetenv "DUCTTAPE_COLORIZE" )
            (ducttape-color-mode #f))))

    ;; -logfile
    (let ((logfile-opts (skim-cmdline-opts-withargs-by-regex "--?log(-?file)?")))
      (if (not (null? logfile-opts))
          (begin
            (ducttape-log-file (car (reverse logfile-opts)))
            (setenv "DUCTTAPE_LOG_FILE" (ducttape-log-file)))))

    ;; -d -dd -d#
    (let ((debug-opts (skim-cmdline-opts-noarg-by-regex "-d(d*|\\d+)"))
          (initial-debuglevel (if (ducttape-debug-level) (ducttape-debug-level) 0) ))
      (if (not (null? debug-opts))
          (begin
            (ducttape-debug-level
             (let loop ((opts debug-opts) (debuglevel initial-debuglevel))
               (if (null? opts)
                   debuglevel
                   (let*
                       ( (curopt (car opts))
                         (restopts (cdr opts))
                         (ds (string-match "-(d+)" curopt))
                         (dnum (string-match "-d(\\d+)" curopt)))
                     (cond
                      (ds (loop restopts (+ debuglevel (string-length (cadr ds)))))
                      (dnum  (loop restopts (string->number (cadr dnum)))))))))
            (setenv "DUCTTAPE_DEBUG_LEVEL" (number->string (ducttape-debug-level))))))


    ;; -dp <pat> / --debug-pattern <pat>
    (let ((debugpat-opts (skim-cmdline-opts-withargs-by-regex "--?(debug-pattern|dp)")))
      (if (not (null? debugpat-opts))
          (begin
            (ducttape-debug-regex-filter (string-join debugpat-opts "|"))
            (setenv "DUCTTAPE_DEBUG_PATTERN" (ducttape-debug-regex-filter)))))) 


  ;;; following code commented out; side effects not wanted on startup
  ;; immediately activate logfile (will be noop if logfile disabled)
  ;;(ducttape-activate-logfile)
  ;;(set-ducttape-log-exit-handler)
  
  ;; TODO: hook exception handler so we can log exception before we sign off.

  ;; handle command line immediately; 
  ;;(process-command-line)                    


  ) ; end module

(standard-extension 'ducttape-lib '1.0.0)