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+;;; Compile --- Command-line Guile Scheme compiler
+
+;; Copyright 2005,2008,2009 Free Software Foundation, Inc.
+;;
+;; This program is free software; you can redistribute it and/or
+;; modify it under the terms of the GNU Lesser General Public License
+;; as published by the Free Software Foundation; either version 3, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+;; Lesser General Public License for more details.
+;;
+;; You should have received a copy of the GNU Lesser General Public
+;; License along with this software; see the file COPYING.LESSER. If
+;; not, write to the Free Software Foundation, Inc., 51 Franklin
+;; Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+;;; Author: Ludovic Courtès <ludo@gnu.org>
+;;; Author: Andy Wingo <wingo@pobox.com>
+
+;;; Commentary:
+
+;; Usage: compile [ARGS]
+;;
+;; A command-line interface to the Guile compiler.
+
+;;; Code:
+
+(define-module (scripts compile)
+ #:use-module ((system base compile) #:select (compile-file))
+ #:use-module (system base message)
+ #:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-13)
+ #:use-module (srfi srfi-37)
+ #:use-module (ice-9 format)
+ #:export (compile))
+
+
+(define (fail . messages)
+ (format (current-error-port)
+ (string-concatenate `("error: " ,@messages "~%")))
+ (exit 1))
+
+(define %options
+ ;; Specifications of the command-line options.
+ (list (option '(#\h "help") #f #f
+ (lambda (opt name arg result)
+ (alist-cons 'help? #t result)))
+ (option '("version") #f #f
+ (lambda (opt name arg result)
+ (show-version)
+ (exit 0)))
+
+ (option '(#\L "load-path") #t #f
+ (lambda (opt name arg result)
+ (let ((load-path (assoc-ref result 'load-path)))
+ (alist-cons 'load-path (cons arg load-path)
+ result))))
+ (option '(#\o "output") #t #f
+ (lambda (opt name arg result)
+ (if (assoc-ref result 'output-file)
+ (fail "`-o' option cannot be specified more than once")
+ (alist-cons 'output-file arg result))))
+
+ (option '(#\W "warn") #t #f
+ (lambda (opt name arg result)
+ (if (string=? arg "help")
+ (begin
+ (show-warning-help)
+ (exit 0))
+ (let ((warnings (assoc-ref result 'warnings)))
+ (alist-cons 'warnings
+ (cons (string->symbol arg) warnings)
+ (alist-delete 'warnings result))))))
+
+ (option '(#\O "optimize") #f #f
+ (lambda (opt name arg result)
+ (alist-cons 'optimize? #t result)))
+ (option '(#\f "from") #t #f
+ (lambda (opt name arg result)
+ (if (assoc-ref result 'from)
+ (fail "`--from' option cannot be specified more than once")
+ (alist-cons 'from (string->symbol arg) result))))
+ (option '(#\t "to") #t #f
+ (lambda (opt name arg result)
+ (if (assoc-ref result 'to)
+ (fail "`--to' option cannot be specified more than once")
+ (alist-cons 'to (string->symbol arg) result))))))
+
+(define (parse-args args)
+ "Parse argument list @var{args} and return an alist with all the relevant
+options."
+ (args-fold args %options
+ (lambda (opt name arg result)
+ (format (current-error-port) "~A: unrecognized option" name)
+ (exit 1))
+ (lambda (file result)
+ (let ((input-files (assoc-ref result 'input-files)))
+ (alist-cons 'input-files (cons file input-files)
+ result)))
+
+ ;; default option values
+ '((input-files)
+ (load-path)
+ (warnings unsupported-warning))))
+
+(define (show-version)
+ (format #t "compile (GNU Guile) ~A~%" (version))
+ (format #t "Copyright (C) 2009 Free Software Foundation, Inc.
+License LGPLv3+: GNU LGPL version 3 or later <http://gnu.org/licenses/lgpl.html>.
+This is free software: you are free to change and redistribute it.
+There is NO WARRANTY, to the extent permitted by law.~%"))
+
+(define (show-warning-help)
+ (format #t "The available warning types are:~%~%")
+ (for-each (lambda (wt)
+ (format #t " ~22A ~A~%"
+ (format #f "`~A'" (warning-type-name wt))
+ (warning-type-description wt)))
+ %warning-types)
+ (format #t "~%"))
+
+
+(define (compile . args)
+ (let* ((options (parse-args args))
+ (help? (assoc-ref options 'help?))
+ (compile-opts (let ((o `(#:warnings
+ ,(assoc-ref options 'warnings))))
+ (if (assoc-ref options 'optimize?)
+ (cons #:O o)
+ o)))
+ (from (or (assoc-ref options 'from) 'scheme))
+ (to (or (assoc-ref options 'to) 'objcode))
+ (input-files (assoc-ref options 'input-files))
+ (output-file (assoc-ref options 'output-file))
+ (load-path (assoc-ref options 'load-path)))
+ (if (or help? (null? input-files))
+ (begin
+ (format #t "Usage: compile [OPTION] FILE...
+Compile each Guile source file FILE into a Guile object.
+
+ -h, --help print this help message
+
+ -L, --load-path=DIR add DIR to the front of the module load path
+ -o, --output=OFILE write output to OFILE
+
+ -W, --warn=WARNING emit warnings of type WARNING; use `--warn=help'
+ for a list of available warnings
+
+ -f, --from=LANG specify a source language other than `scheme'
+ -t, --to=LANG specify a target language other than `objcode'
+
+Note that autocompilation will be turned off.
+
+Report bugs to <~A>.~%"
+ %guile-bug-report-address)
+ (exit 0)))
+
+ (set! %load-path (append load-path %load-path))
+ (set! %load-should-autocompile #f)
+
+ (if (and output-file
+ (or (null? input-files)
+ (not (null? (cdr input-files)))))
+ (fail "`-o' option can only be specified "
+ "when compiling a single file"))
+
+ (for-each (lambda (file)
+ (format #t "wrote `~A'\n"
+ (compile-file file
+ #:output-file output-file
+ #:from from
+ #:to to
+ #:opts compile-opts)))
+ input-files)))
+
+(define main compile)
+
+;;; Local Variables:
+;;; coding: latin-1
+;;; End: