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| | #!@GUILE@ -s
-*- scheme -*-
!#
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Mark H Weaver <mhw@netris.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 (ice-9 regex))
(let ()
(define-syntax-rule (push! elt v) (set! v (cons elt v)))
(define config-lookup
(let ((config '(("prefix" . "@prefix@")
("datarootdir" . "@datarootdir@")
("guilemoduledir" . "@guilemoduledir@")))
(var-ref-regexp (make-regexp "\\$\\{([a-z]+)\\}")))
(define (expand-var-ref match)
(lookup (match:substring match 1)))
(define (expand str)
(regexp-substitute/global #f var-ref-regexp str
'pre expand-var-ref 'post))
(define (lookup name)
(expand (assoc-ref config name)))
lookup))
(define (maybe-augment-load-paths!)
(unless (getenv "GUIX_UNINSTALLED")
(let ((module-dir (config-lookup "guilemoduledir")))
(push! module-dir %load-path)
(push! module-dir %load-compiled-path))))
(define (run-script name args)
(let* ((symbol (string->symbol name))
(module (resolve-interface `(guix scripts ,symbol)))
(script (module-ref module symbol)))
(apply script args)))
(define (main arg0 . args)
(setlocale LC_ALL "") ; XXX Is there a reason not to do this?
(maybe-augment-load-paths!)
(let ((cmd (basename arg0)))
(cond ((string-prefix? "guix-" cmd)
(run-script cmd args))
((not (null? args))
(run-script (string-append "guix-" (car args))
(cdr args)))
(else
;; TODO: Dynamically generate a summary of available commands.
(format (current-error-port)
"Usage: guix <command> [<args>]~%")
(exit 1)))))
(apply main (command-line)))
|