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Diffstat (limited to 'guix/scripts/import/cpan.scm')
-rw-r--r-- | guix/scripts/import/cpan.scm | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/guix/scripts/import/cpan.scm b/guix/scripts/import/cpan.scm new file mode 100644 index 0000000000..1f4dedf23f --- /dev/null +++ b/guix/scripts/import/cpan.scm @@ -0,0 +1,91 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.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/>. + +(define-module (guix scripts import cpan) + #:use-module (guix ui) + #:use-module (guix utils) + #:use-module (guix import cpan) + #:use-module (guix scripts import) + #:use-module (srfi srfi-1) + #:use-module (srfi srfi-11) + #:use-module (srfi srfi-37) + #:use-module (ice-9 match) + #:use-module (ice-9 format) + #:export (guix-import-cpan)) + + +;;; +;;; Command-line options. +;;; + +(define %default-options + '()) + +(define (show-help) + (display (_ "Usage: guix import cpan PACKAGE-NAME +Import and convert the CPAN package for PACKAGE-NAME.\n")) + (display (_ " + -h, --help display this help and exit")) + (display (_ " + -V, --version display version information and exit")) + (newline) + (show-bug-report-information)) + +(define %options + ;; Specification of the command-line options. + (cons* (option '(#\h "help") #f #f + (lambda args + (show-help) + (exit 0))) + (option '(#\V "version") #f #f + (lambda args + (show-version-and-exit "guix import cpan"))) + %standard-import-options)) + + +;;; +;;; Entry point. +;;; + +(define (guix-import-cpan . args) + (define (parse-options) + ;; Return the alist of option values. + (args-fold* args %options + (lambda (opt name arg result) + (leave (_ "~A: unrecognized option~%") name)) + (lambda (arg result) + (alist-cons 'argument arg result)) + %default-options)) + + (let* ((opts (parse-options)) + (args (filter-map (match-lambda + (('argument . value) + value) + (_ #f)) + (reverse opts)))) + (match args + ((package-name) + (let ((sexp (cpan->guix-package package-name))) + (unless sexp + (leave (_ "failed to download meta-data for package '~a'~%") + package-name)) + sexp)) + (() + (leave (_ "too few arguments~%"))) + ((many ...) + (leave (_ "too many arguments~%")))))) |