Megatest

     current-wwdate
     current-isodate
     *this-exe-dir*
     *this-exe-name*
     *this-exe-fullpath*
     )

  (import scheme chicken extras ports data-structures )
  (use posix regex ansi-escape-sequences test srfi-1 irregex slice srfi-13 rfc3339)
  (import scheme chicken.base chicken.port chicken.process chicken.io chicken.pathname chicken.process-context chicken.time chicken.process chicken.condition chicken.time.posix chicken.process-context.posix chicken.format chicken.file.posix)
  (import regex ansi-escape-sequences test srfi-1 chicken.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
  ;;(import directory-utils uuid-lib filepath srfi-19 ) ; linenoise
  (import directory-utils filepath srfi-19 ) ; linenoise

    ;; plugs a hole in posix-extras in latter chicken versions
  (use posix-extras pathname-expand files)
  (import pathname-expand chicken.file chicken.string)
  (define ##sys#expand-home-path pathname-expand)
  (define (realpath x) (resolve-pathname  (pathname-expand (or x "/dev/null")) ))
  (define (realpath x) (print "Path: " x) (normalize-pathname  (pathname-expand (or x "/dev/null")) ))
  ;;(define (realpath x) (pathname-expand (or x "/dev/null")))

  ;; (include "mimetypes.scm") ; provides ext->mimetype
  ;; (include "workweekdate.scm")

  ;; gathered from macosx:
;;   cat /etc/apache2/mime.types | grep -v '^#' | perl -ne 'print "(\"$2\" . \"$1\")\n" if /(\S+)\s+(\S+)/' > mimetypes.scm
;; + manual manipulation

("wmx" . "video/x-ms-wmx")
("wvx" . "video/x-ms-wvx")
("avi" . "video/x-msvideo")
("movie" . "video/x-sgi-movie")
("smv" . "video/x-smv")
("ice" . "x-conference/x-cooltalk")))

(use srfi-19)
(use test)
(import srfi-19)
(import test)
;;(use format)
(use regex)
(import regex)
;(declare (unit wwdate))
;; utility procedures to convert among
;; different ways to express date (wwdate, seconds since epoch, isodate)
;;
;; samples:
;; isodate   -> "2016-01-01"
;; wwdate -> "16ww01.5"

      (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)
              (if (file-executable? candidate)
                  candidate
                  (loop next-rest)))))))


  
;;;; define some handy globals
  ;; resolve fullpath to this script or binary.

     (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")))
                         (set-environment-variable! "DUCTTAPE_DEBUG_LEVEL" (number->string new-num-debug-level))
                         (unset-environment-variable! "DUCTTAPE_DEBUG_LEVEL")))
                   num-debug-level) ; it was set and > 0, mode is value
                 (begin
                   (unsetenv "DUCTTAPE_DEBUG_LEVEL") ;; value was invalid, unset it
                   (unset-environment-variable! "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

            " "))
          (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))))
            (set-environment-variable! "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 

                    )

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

      (define (get-uuid)
	"foo")
        (string-upcase (uuid->string (uuid-generate))))
        ;;(string-upcase (uuid->string (uuid-generate))))

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

  ;; 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")
            (set-environment-variable! "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")
            (set-environment-variable! "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")
            (set-environment-variable! "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" )
            (unset-environment-variable! "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)))))
            (set-environment-variable! "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))))))
            (set-environment-variable! "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)))))) 
            (set-environment-variable! "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)