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;;; ccwl --- Concise Common Workflow Language
;;; Copyright © 2022 Arun Isaac <arunisaac@systemreboot.net>
;;;
;;; This file is part of ccwl.
;;;
;;; ccwl is free software: you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation, either version 3 of the License, or
;;; (at your option) any later version.
;;;
;;; ccwl 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
;;; General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with ccwl. If not, see <https://www.gnu.org/licenses/>.
(use-modules (rnrs io ports)
(srfi srfi-1)
(srfi srfi-26)
(srfi srfi-28)
(srfi srfi-37)
(ice-9 match)
(ice-9 popen))
(define (call-with-input-pipe command proc)
"Call PROC with input pipe to COMMAND. COMMAND is a list of program
arguments."
(match command
((prog args ...)
(let ((port #f))
(dynamic-wind
(lambda ()
(set! port (apply open-pipe* OPEN_READ prog args)))
(cut proc port)
(cut close-pipe port))))))
(define (check-for-guile-3.0)
(display "checking for guile 3.0... ")
(if (string=? (effective-version) "3.0")
(display (format "yes~%"))
(begin
(display (format "no~%error: Guile 3.0 not found~%"))
(exit #f))))
(define (check-for-module module)
(display (format "checking for module ~a... " module))
(if (resolve-module module #:ensure #f)
(display (format "yes~%"))
(begin
(display (format "no~%error: no ~a found~%" module))
(exit #f))))
(define (find-program program)
(find file-exists?
(map (lambda (path)
(string-append path "/" program))
(string-split (getenv "PATH")
#\:))))
(define* (check-for-program program #:optional package)
(display (format "checking for program ~a... " program))
(let ((found-program (find-program program)))
(cond
(found-program
(display (format "~a~%" found-program)))
(package
(display (format "no~%error: cannot find ~a from the ~a package~%"
program package))
(exit #f))
(else
(display (format "no~%error: cannot find ~a~%" program))
(exit #f)))))
(define* (check-for-optional-program program msg)
(display (format "checking for program ~a... " program))
(let ((found-program (find-program program)))
(display (or found-program msg))
(newline)))
(define (option-proc opt name arg result)
(cons (cons (string->symbol name) arg)
result))
(define (unrecognized-option-proc opt name arg result)
(display (if arg
(format "Ignoring unrecognized option --~a=~a~%"
name arg)
(format "Ignoring unrecognized option --~a~%"
name)))
result)
(define (unrecognized-argument-proc arg result)
(display (format "Ignoring unrecognized argument ~a~%"
arg))
result)
(define processed-args
(match (program-arguments)
((_ project args ...)
(let* ((args (args-fold args
(list (option '("prefix") #t #f
option-proc))
unrecognized-option-proc
unrecognized-argument-proc
'()))
(prefix (or (assq-ref args 'prefix)
"/usr/local"))
(exec-prefix (or (assq-ref args 'exec-prefix)
prefix))
(datarootdir (or (assq-ref args 'datarootdir)
(string-append prefix "/share"))))
`((project . ,project)
(bindir . ,(or (assq-ref args 'bindir)
(string-append exec-prefix "/bin")))
(libdir . ,(or (assq-ref args 'libdir)
(string-append exec-prefix "/lib")))
(datarootdir . ,datarootdir)
(infodir . ,(or (assq-ref args 'infodir)
(string-append datarootdir "/info"))))))))
(define version
(call-with-input-pipe (list "git" "tag" "--sort=taggerdate"
"--list" "v*")
(lambda (port)
(let ((line (get-line port)))
(if (eof-object? line)
;; If there are no tags, assume first version.
"0.1.0"
(substring line (string-length "v")))))))
(check-for-guile-3.0)
(check-for-module '(yaml))
(check-for-program "dot" "graphviz")
(check-for-program "cwltool")
(check-for-program "skribilo")
(check-for-optional-program "emacs" "cannot find emacs, and therefore cannot build the website")
(call-with-output-file "Makefile.include"
(lambda (port)
(display (format "# This file was automatically generated by configure.
project = ~a
version = ~a
bindir = ~a
libdir = ~a
datarootdir = ~a
infodir = ~a
guile_effective_version = ~a
"
(assq-ref processed-args 'project)
version
(assq-ref processed-args 'bindir)
(assq-ref processed-args 'libdir)
(assq-ref processed-args 'datarootdir)
(assq-ref processed-args 'infodir)
(effective-version))
port)))
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