guix-play/guix/scripts/import/cpan.scm
Sarah Morgensen 15452f319c
import: Use PARSE-COMMAND-LINE for options.
* guix/scripts/import/go.scm (guix-import-go)[parse-options]: Use
PARSE-COMMAND-LINE instead of ARGS-FOLD*.
* guix/scripts/import/egg.scm (guix-import-egg)[parse-options]:
Likewise.
* guix/scripts/import/gem.scm (guix-import-gem)[parse-options]:
Likewise.
* guix/scripts/import/gnu.scm (guix-import-gnu)[parse-options]:
Likewise.
* guix/scripts/import/cpan.scm (guix-import-cpan)[parse-options]:
Likewise.
* guix/scripts/import/cran.scm (guix-import-cran)[parse-options]:
Likewise.
* guix/scripts/import/elpa.scm (guix-import-elpa)[parse-options]:
Likewise.
* guix/scripts/import/json.scm (guix-import-json)[parse-options]:
Likewise.
* guix/scripts/import/opam.scm (guix-import-opam)[parse-options]:
Likewise.
* guix/scripts/import/pypi.scm (guix-import-pypi)[parse-options]:
Likewise.
* guix/scripts/import/crate.scm (guix-import-crate)[parse-options]:
Likewise.
* guix/scripts/import/texlive.scm (guix-import-texlive)[parse-options]:
Likewise.
* guix/scripts/import/hackage.scm (guix-import-hackage)[parse-options]:
Likewise.
* guix/scripts/import/stackage.scm (guix-import-stackage)[parse-options]:
Likewise.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-08-04 17:22:19 +02:00

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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org>
;;; Copyright © 2021 Sarah Morgensen <iskarian@mgsn.dev>
;;;
;;; 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 scripts)
#: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 (G_ "Usage: guix import cpan PACKAGE-NAME
Import and convert the CPAN package for PACKAGE-NAME.\n"))
(display (G_ "
-h, --help display this help and exit"))
(display (G_ "
-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.
(parse-command-line args %options (list %default-options)
#:build-options? #f))
(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 (G_ "failed to download meta-data for package '~a'~%")
package-name))
sexp))
(()
(leave (G_ "too few arguments~%")))
((many ...)
(leave (G_ "too many arguments~%"))))))