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Amiga Format CD41 (1999-06)(Future Publishing)(GB)[!][issue 1999-07].iso
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-seriously_amiga-
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programming
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scm
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slib
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batch.scm
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1999-04-19
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;;; "batch.scm" Group and execute commands on various systems.
;Copyright (C) 1994, 1995, 1997 Aubrey Jaffer
;
;Permission to copy this software, to redistribute it, and to use it
;for any purpose is granted, subject to the following restrictions and
;understandings.
;
;1. Any copy made of this software must include this copyright notice
;in full.
;
;2. I have made no warrantee or representation that the operation of
;this software will be error-free, and I am under no obligation to
;provide any services, by way of maintenance, update, or otherwise.
;
;3. In conjunction with products arising from the use of this
;material, there shall be no use of my name in any advertising,
;promotional, or sales literature without prior written consent in
;each case.
(require 'line-i/o) ;Just for write-line
(require 'parameters)
(require 'database-utilities)
(require 'string-port)
(require 'tree)
(define system
(if (provided? 'system)
system
(lambda (str) 1)))
(define system:success?
(case (software-type)
((VMS) (lambda (int) (eqv? 1 int)))
(else zero?)))
;;(trace system system:success? exit quit slib:exit)
(define (batch:port parms)
(let ((bp (parameter-list-ref parms 'batch-port)))
(cond ((or (not (pair? bp)) (not (output-port? (car bp))))
(slib:warn 'batch-line "missing batch-port parameter" bp)
(current-output-port))
(else (car bp)))))
(define (batch:dialect parms) ; was batch-family
(car (parameter-list-ref parms 'batch-dialect)))
(define (batch:line-length-limit parms)
(let ((bl (parameter-list-ref parms 'batch-line-length-limit)))
(cond (bl (car bl))
(else (case (batch:dialect parms)
((unix) 1023)
((dos) 127)
((vms) 1023)
((amigados) 511)
((system) 1023)
((*unknown*) -1))))))
(define (write-batch-line str line-limit port)
(cond ((and line-limit (>= (string-length str) line-limit)) #f)
(else (write-line str port) #t)))
(define (batch-line parms str)
(write-batch-line str (batch:line-length-limit parms) (batch:port parms)))
;;; add a Scheme batch-dialect?
(define (batch:apply-chop-to-fit proc . args)
(define args-but-last (butlast args 1))
(let loop ((fodder (car (last-pair args))))
(let ((hlen (quotient (length fodder) 2)))
(cond ((apply proc (append args-but-last (list fodder))))
((not (positive? hlen))
(slib:error 'batch:apply-chop-to-fit "can't split"
(cons proc (append args-but-last (list fodder)))))
(else (loop (nthcdr (- (length fodder) hlen) fodder))
(loop (butlast fodder hlen)))))))
(define (batch:try-system parms . strings)
(set! strings (batch:flatten strings))
(case (batch:dialect parms)
((unix) (batch-line parms (apply string-join " " strings)))
((dos) (batch-line parms (apply string-join " " strings)))
((vms) (batch-line parms (apply string-join " " "$" strings)))
((amigados) (batch-line parms (apply string-join " " strings)))
((system)
(let ((port (batch:port parms))
(str (apply string-join " " strings)))
(write `(system ,str) port) (newline port)
(and (provided? 'system) (system:success? (system str)))))
((*unknown*)
(let ((port (batch:port parms))
(str (apply string-join " " strings)))
(write `(system ,str) port) (newline port))
#t)
(else #f)))
(define (batch:system parms . strings)
(cond ((apply batch:try-system parms strings))
(else (slib:error 'batch:system 'failed strings))))
(define (batch:run-script parms name . strings)
(case (batch:dialect parms strings)
((vms) (batch:system parms (string-append "@" name) strings))
(else (batch:system parms name strings))))
(define (batch:write-comment-line dialect line port)
(case dialect
((unix) (write-batch-line (string-append "# " line) #f port))
((dos) (write-batch-line (string-append "rem " line) #f port))
((vms) (write-batch-line (string-append "$! " line) #f port))
((amigados) (write-batch-line (string-append "; " line) #f port))
((system) (write-batch-line (string-append "; " line) #f port))
((*unknown*) (write-batch-line (string-append ";;; " line) #f port)
;;(newline port)
#f)))
(define (batch:comment parms . lines)
(define port (batch:port parms))
(define dialect (batch:dialect parms))
(set! lines (batch:flatten lines))
(every (lambda (line)
(batch:write-comment-line dialect line port))
lines))
(define (batch:lines->file parms file . lines)
(define port (batch:port parms))
(set! lines (batch:flatten lines))
(case (or (batch:dialect parms) '*unknown*)
((unix) (batch-line parms (string-append "rm -f " file))
(every
(lambda (string)
(batch-line parms (string-append "echo '" string "'>>" file)))
lines))
((dos) (batch-line parms (string-append "DEL " file))
(every
(lambda (string)
(batch-line parms
(string-append "ECHO" (if (equal? "" string) "." " ")
string ">>" file)))
lines))
((vms) (and (batch-line parms (string-append "$DELETE " file))
(batch-line parms (string-append "$CREATE " file))
(batch-line parms (string-append "$DECK"))
(every (lambda (string) (batch-line parms string))
lines)
(batch-line parms (string-append "$EOD"))))
((amigados) (batch-line parms (string-append "delete force " file))
(every
(lambda (str)
(letrec ((star-quote
(lambda (str)
(if (equal? "" str)
str
(let* ((ch (string-ref str 0))
(s (if (char=? ch #\")
(string #\* ch)
(string ch))))
(string-append
s
(star-quote
(substring str 1 (string-length str)))))))))
(batch-line parms (string-append "echo \"" (star-quote str)
"\" >> " file))))
lines))
((system) (write `(delete-file ,file) port) (newline port)
(delete-file file)
(require 'pretty-print)
(pretty-print `(call-with-output-file ,file
(lambda (fp)
(for-each
(lambda (string) (write-line string fp))
',lines)))
port)
(call-with-output-file file
(lambda (fp) (for-each (lambda (string) (write-line string fp))
lines)))
#t)
((*unknown*)
(write `(delete-file ,file) port) (newline port)
(require 'pretty-print)
(pretty-print
`(call-with-output-file ,file
(lambda (fp)
(for-each
(lambda (string)
(write-line string fp))
,lines)))
port)
#f)))
(define (batch:delete-file parms file)
(define port (batch:port parms))
(case (batch:dialect parms)
((unix) (batch-line parms (string-append "rm -f " file))
#t)
((dos) (batch-line parms (string-append "DEL " file))
#t)
((vms) (batch-line parms (string-append "$DELETE " file))
#t)
((amigados) (batch-line parms (string-append "delete force " file))
#t)
((system) (write `(delete-file ,file) port) (newline port)
(delete-file file)) ; SLIB provides
((*unknown*) (write `(delete-file ,file) port) (newline port)
#f)))
(define (batch:rename-file parms old-name new-name)
(define port (batch:port parms))
(case (batch:dialect parms)
((unix) (batch-line parms (string-join " " "mv -f" old-name new-name)))
;;((dos) (batch-line parms (string-join " " "REN" old-name new-name)))
((dos) (batch-line parms (string-join " " "MOVE" "/Y" old-name new-name)))
((vms) (batch-line parms (string-join " " "$RENAME" old-name new-name)))
((amigados) (batch-line parms (string-join " " "failat 21"))
(batch-line parms (string-join " " "delete force" new-name))
(batch-line parms (string-join " " "rename" old-name new-name)))
((system) (batch:extender 'rename-file batch:rename-file))
((*unknown*) (write `(rename-file ,old-name ,new-name) port)
(newline port)
#f)))
(define (batch:write-header-comment dialect name port)
(batch:write-comment-line
dialect
(string-append (if (string? name)
(string-append "\"" name "\"")
(case dialect
((system *unknown*) "Scheme")
((vms) "VMS")
((dos) "DOS")
((default-for-platform) "??")
(else (symbol->string dialect))))
" script created by SLIB/batch "
(cond ((provided? 'bignum)
(require 'posix-time)
(let ((ct (ctime (current-time))))
(substring ct 0 (+ -1 (string-length ct)))))
(else "")))
port))
(define (batch:call-with-output-script parms name proc)
(define dialect (batch:dialect parms))
(case dialect
((unix) ((cond ((and (string? name) (provided? 'system))
(lambda (proc)
(let ((ans (call-with-output-file name proc)))
(system (string-append "chmod +x " name))
ans)))
((output-port? name) (lambda (proc) (proc name)))
(else (lambda (proc) (proc (current-output-port)))))
(lambda (port)
(write-line "#!/bin/sh" port)
(batch:write-header-comment dialect name port)
(proc port))))
((dos) ((cond ((string? name)
(lambda (proc)
(call-with-output-file (string-append name ".bat") proc)))
((output-port? name) (lambda (proc) (proc name)))
(else (lambda (proc) (proc (current-output-port)))))
(lambda (port)
(batch:write-header-comment dialect name port)
(proc port))))
((vms) ((cond ((string? name)
(lambda (proc)
(call-with-output-file (string-append name ".COM") proc)))
((output-port? name) (lambda (proc) (proc name)))
(else (lambda (proc) (proc (current-output-port)))))
(lambda (port)
(batch:write-header-comment dialect name port)
;;(write-line "$DEFINE/USER SYS$OUTPUT BUILD.LOG" port)
(proc port))))
((amigados) ((cond ((and (string? name) (provided? 'system))
(lambda (proc)
(let ((ans (call-with-output-file name proc)))
(system (string-append "protect " name " rswd"))
ans)))
((output-port? name) (lambda (proc) (proc name)))
(else (lambda (proc) (proc (current-output-port)))))
(lambda (port)
(batch:write-header-comment dialect name port)
(proc port))))
((system) ((cond ((and (string? name) (provided? 'system))
(lambda (proc)
(let ((ans (call-with-output-file name
(lambda (port) (proc name)))))
(system (string-append "chmod +x " name))
ans)))
((output-port? name) (lambda (proc) (proc name)))
(else (lambda (proc) (proc (current-output-port)))))
(lambda (port)
(batch:write-header-comment dialect name port)
(proc port))))
((*unknown*) ((cond ((and (string? name) (provided? 'system))
(lambda (proc)
(let ((ans (call-with-output-file name
(lambda (port) (proc name)))))
(system (string-append "chmod +x " name))
ans)))
((output-port? name) (lambda (proc) (proc name)))
(else (lambda (proc) (proc (current-output-port)))))
(lambda (port)
(batch:write-header-comment dialect name port)
(proc port))))))
;;; This little ditty figures out how to use a Scheme extension or
;;; SYSTEM to execute a command that is not available in the batch
;;; mode chosen.
(define (batch:extender NAME BATCHER)
(lambda (parms . args)
(define port (batch:port parms))
(cond
((provided? 'i/o-extensions) ; SCM specific
(write `(,NAME ,@args) port)
(newline port)
(apply (slib:eval NAME) args))
((not (provided? 'system)) #f)
(else
(let ((pl (make-parameter-list (map car parms))))
(adjoin-parameters!
pl (cons 'batch-dialect (os->batch-dialect
(parameter-list-ref parms 'platform))))
(system
(call-with-output-string
(lambda (port)
(batch:call-with-output-script
port
(lambda (batch-port)
(define new-parms (copy-tree pl))
(adjoin-parameters! new-parms (list 'batch-port batch-port))
(apply BATCHER new-parms args)))))))))))
(define (truncate-up-to str chars)
(define (tut str)
(do ((i (string-length str) (+ -1 i)))
((or (zero? i) (memv (string-ref str (+ -1 i)) chars))
(substring str i (string-length str)))))
(cond ((char? chars) (set! chars (list chars)))
((string? chars) (set! chars (string->list chars))))
(if (string? str) (tut str) (map tut str)))
(define (must-be-first firsts lst)
(append (remove-if-not (lambda (i) (member i lst)) firsts)
(remove-if (lambda (i) (member i firsts)) lst)))
(define (must-be-last lst lasts)
(append (remove-if (lambda (i) (member i lasts)) lst)
(remove-if-not (lambda (i) (member i lst)) lasts)))
(define (string-join joiner . args)
(if (null? args) ""
(apply string-append
(car args)
(map (lambda (s) (string-append joiner s)) (cdr args)))))
(define (batch:flatten strings)
(apply
append (map
(lambda (obj)
(cond ((eq? "" obj) '())
((string? obj) (list obj))
((eq? #f obj) '())
((null? obj) '())
((list? obj) (batch:flatten obj))
(else (slib:error 'batch:flatten "unexpected type"
obj "in" strings))))
strings)))
(define batch:platform (software-type))
(cond ((and (eq? 'unix batch:platform) (provided? 'system))
(let ((file-name (tmpnam)))
(system (string-append "uname > " file-name))
(set! batch:platform (call-with-input-file file-name read))
(delete-file file-name))))
(define batch:database #f)
(define (os->batch-dialect os)
((((batch:database 'open-table) 'operating-system #f)
'get 'os-family) os))
(define (batch:initialize! database)
(set! batch:database database)
(define-tables database
'(batch-dialect
((family atom))
()
((unix)
(dos)
(vms)
(amigados)
(system)
(*unknown*)))
'(operating-system
((name symbol))
((os-family batch-dialect))
(;;(3b1 *unknown*)
(*unknown* *unknown*)
(acorn *unknown*)
(aix unix)
(alliant *unknown*)
(amiga amigados)
(apollo unix)
(apple2 *unknown*)
(arm *unknown*)
(atari.st *unknown*)
(cdc *unknown*)
(celerity *unknown*)
(concurrent *unknown*)
(convex *unknown*)
(encore *unknown*)
(harris *unknown*)
(hp-ux unix)
(hp48 *unknown*)
(irix unix)
(isis *unknown*)
(linux unix)
(mac *unknown*)
(masscomp unix)
(mips *unknown*)
(ms-dos dos)
(ncr *unknown*)
(newton *unknown*)
(next unix)
(novell *unknown*)
(os/2 dos)
(osf1 unix)
(prime *unknown*)
(psion *unknown*)
(pyramid *unknown*)
(sequent *unknown*)
(sgi *unknown*)
(stratus *unknown*)
(sunos unix)
(transputer *unknown*)
(unicos unix)
(unix unix)
(vms vms)
)))
((database 'add-domain) '(operating-system operating-system #f symbol #f))
)