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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix 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.
;;;
;;; GNU Guix 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 GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(use-modules (guix modules)
(guix utils)
(srfi srfi-26)
(ice-9 match))
(define (relevant-module? module)
(match module
(('guix _ ...) #t)
(('gnu 'packages _ ...) #f)
(('gnu _ ...) #t)
(_ #f)))
(define srcdir (or (getenv "srcdir")"."))
(define (relative-file file)
(if (string-prefix? (string-append srcdir "/") file)
(string-drop file (+ 1 (string-length srcdir)))
file))
(define (file->module file)
(let* ((relative (relative-file file))
(module-path (string-drop-right relative 4)))
(map string->symbol
(string-split module-path #\/))))
(define (module->file module)
(string-append srcdir "/"
(string-join (map symbol->string module) "/")))
(define (display-module-rule module dependencies port)
(format port "~a.go: ~a.scm~{ ~a~}~%"
(module->file module)
(module->file module)
(map (compose (cut string-append <> ".go")
module->file) dependencies)))
(match (command-line)
((command . files)
(format #t "# Automatically generated. -*- read-only -*-\n")
(for-each (lambda (file)
(match (file->module file)
(('gnu 'packages _ ...)
;; We don't want to rebuild package modules too often,
;; especially since it's rarely useful. Thus, generate a
;; simple static rule.
(format #t "~a.go: ~a guix/packages.go~%"
(file-sans-extension file) file))
(module
(display-module-rule module
(filter relevant-module?
(source-module-dependencies module))
(current-output-port)))))
files)))
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