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|
;;; autofrisk --- Generate module checks for use with auto* tools
;; Copyright (C) 2002, 2006, 2009, 2011 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: Thien-Thi Nguyen <ttn@gnu.org>
;;; Commentary:
;; Usage: autofrisk [file]
;;
;; This program looks for the file modules.af in the current directory
;; and writes out modules.af.m4 containing autoconf definitions.
;; If given, look for FILE instead of modules.af and output to FILE.m4.
;;
;; After running autofrisk, you should add to configure.ac the lines:
;; AUTOFRISK_CHECKS
;; AUTOFRISK_SUMMARY
;; Then run "aclocal -I ." to update aclocal.m4, and finally autoconf.
;;
;; The modules.af file consists of a series of configuration forms (Scheme
;; lists), which have one of the following formats:
;; (files-glob PATTERN ...)
;; (non-critical-external MODULE ...)
;; (non-critical-internal MODULE ...)
;; (programs (MODULE PROG ...) ...)
;; (pww-varname VARNAME)
;; PATTERN is a string that may contain "*" and "?" characters to be
;; expanded into filenames. MODULE is a list of symbols naming a
;; module, such as `(srfi srfi-1)'. VARNAME is a shell-safe name to use
;; instead of "probably_wont_work", the default. This var is passed to
;; `AC_SUBST'. PROG is a string.
;;
;; Only the `files-glob' form is required.
;;
;; TODO: Write better commentary.
;; Make "please see README" configurable.
;;; Code:
(define-module (scripts autofrisk)
:autoload (ice-9 popen) (open-input-pipe)
:use-module (srfi srfi-1)
:use-module (srfi srfi-8)
:use-module (srfi srfi-13)
:use-module (srfi srfi-14)
:use-module (scripts read-scheme-source)
:use-module (scripts frisk)
:export (autofrisk))
(define %include-in-guild-list #f)
(define %summary "Generate snippets for use in configure.ac files.")
(define *recognized-keys* '(files-glob
non-critical-external
non-critical-internal
programs
pww-varname))
(define (canonical-configuration forms)
(let ((chk (lambda (condition . x)
(or condition (apply error "syntax error:" x)))))
(chk (list? forms) "input not a list")
(chk (every list? forms) "non-list element")
(chk (every (lambda (form) (< 1 (length form))) forms) "list too short")
(let ((un #f))
(chk (every (lambda (form)
(let ((key (car form)))
(and (symbol? key)
(or (eq? 'quote key)
(memq key *recognized-keys*)
(begin
(set! un key)
#f)))))
forms)
"unrecognized key:" un))
(let ((bunched (map (lambda (key)
(fold (lambda (form so-far)
(or (and (eq? (car form) key)
(cdr form)
(append so-far (cdr form)))
so-far))
(list key)
forms))
*recognized-keys*)))
(lambda (key)
(assq-ref bunched key)))))
(define (>>strong modules)
(for-each (lambda (module)
(format #t "GUILE_MODULE_REQUIRED~A\n" module))
modules))
(define (safe-name module)
(let ((var (object->string module)))
(string-map! (lambda (c)
(if (char-set-contains? char-set:letter+digit c)
c
#\_))
var)
var))
(define *pww* "probably_wont_work")
(define (>>weak weak-edges)
(for-each (lambda (edge)
(let* ((up (edge-up edge))
(down (edge-down edge))
(var (format #f "have_guile_module~A" (safe-name up))))
(format #t "GUILE_MODULE_AVAILABLE(~A, ~A)\n" var up)
(format #t "test \"$~A\" = no &&\n ~A=\"~A $~A\"~A"
var *pww* down *pww* "\n\n")))
weak-edges))
(define (>>program module progs)
(let ((vars (map (lambda (prog)
(format #f "guile_module~Asupport_~A"
(safe-name module)
prog))
progs)))
(for-each (lambda (var prog)
(format #t "AC_PATH_PROG(~A, ~A)\n" var prog))
vars progs)
(format #t "test \\\n")
(for-each (lambda (var)
(format #t " \"$~A\" = \"\" -o \\\n" var))
vars)
(format #t "~A &&\n~A=\"~A $~A\"\n\n"
(list-ref (list "war = peace"
"freedom = slavery"
"ignorance = strength")
(random 3))
*pww* module *pww*)))
(define (>>programs programs)
(for-each (lambda (form)
(>>program (car form) (cdr form)))
programs))
(define (unglob pattern)
(let ((p (open-input-pipe (format #f "echo '(' ~A ')'" pattern))))
(map symbol->string (read p))))
(define (>>checks forms)
(let* ((cfg (canonical-configuration forms))
(files (apply append (map unglob (cfg 'files-glob))))
(ncx (cfg 'non-critical-external))
(nci (cfg 'non-critical-internal))
(report ((make-frisker) files))
(external (report 'external)))
(let ((pww-varname (cfg 'pww-varname)))
(or (null? pww-varname) (set! *pww* (car pww-varname))))
(receive (weak strong)
(partition (lambda (module)
(or (member module ncx)
(every (lambda (i)
(member i nci))
(map edge-down (mod-down-ls module)))))
external)
(format #t "AC_DEFUN([AUTOFRISK_CHECKS],[\n\n")
(>>strong strong)
(format #t "\n~A=~S\n\n" *pww* "")
(>>weak (fold (lambda (module so-far)
(append so-far (mod-down-ls module)))
(list)
weak))
(>>programs (cfg 'programs))
(format #t "AC_SUBST(~A)\n])\n\n" *pww*))))
(define (>>summary)
(format #t
(symbol->string
'#{
AC_DEFUN([AUTOFRISK_SUMMARY],[
if test ! "$~A" = "" ; then
p=" ***"
echo "$p"
echo "$p NOTE:"
echo "$p The following modules probably won't work:"
echo "$p $~A"
echo "$p They can be installed anyway, and will work if their"
echo "$p dependencies are installed later. Please see README."
echo "$p"
fi
])
}#)
*pww* *pww*))
(define (autofrisk . args)
(let ((file (if (null? args) "modules.af" (car args))))
(or (file-exists? file)
(error "could not find input file:" file))
(with-output-to-file (format #f "~A.m4" file)
(lambda ()
(>>checks (read-scheme-source-silently file))
(>>summary)))))
(define main autofrisk)
;; Local variables:
;; eval: (put 'receive 'scheme-indent-function 2)
;; End:
;;; autofrisk ends here
|
