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1 | ;;; GNU Guix --- Functional package management for GNU |
2 | ;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org> | |
3 | ;;; | |
4 | ;;; This file is part of GNU Guix. | |
5 | ;;; | |
6 | ;;; GNU Guix is free software; you can redistribute it and/or modify it | |
7 | ;;; under the terms of the GNU General Public License as published by | |
8 | ;;; the Free Software Foundation; either version 3 of the License, or (at | |
9 | ;;; your option) any later version. | |
10 | ;;; | |
11 | ;;; GNU Guix is distributed in the hope that it will be useful, but | |
12 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | ;;; GNU General Public License for more details. | |
15 | ;;; | |
16 | ;;; You should have received a copy of the GNU General Public License | |
17 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. | |
18 | ||
19 | (define-module (guix scripts import cpan) | |
20 | #:use-module (guix ui) | |
21 | #:use-module (guix utils) | |
88981dd3 | 22 | #:use-module (guix scripts) |
d45dc6da EB |
23 | #:use-module (guix import cpan) |
24 | #:use-module (guix scripts import) | |
25 | #:use-module (srfi srfi-1) | |
26 | #:use-module (srfi srfi-11) | |
27 | #:use-module (srfi srfi-37) | |
28 | #:use-module (ice-9 match) | |
29 | #:use-module (ice-9 format) | |
30 | #:export (guix-import-cpan)) | |
31 | ||
32 | \f | |
33 | ;;; | |
34 | ;;; Command-line options. | |
35 | ;;; | |
36 | ||
37 | (define %default-options | |
38 | '()) | |
39 | ||
40 | (define (show-help) | |
69daee23 | 41 | (display (G_ "Usage: guix import cpan PACKAGE-NAME |
d45dc6da | 42 | Import and convert the CPAN package for PACKAGE-NAME.\n")) |
69daee23 | 43 | (display (G_ " |
d45dc6da | 44 | -h, --help display this help and exit")) |
69daee23 | 45 | (display (G_ " |
d45dc6da EB |
46 | -V, --version display version information and exit")) |
47 | (newline) | |
48 | (show-bug-report-information)) | |
49 | ||
50 | (define %options | |
51 | ;; Specification of the command-line options. | |
52 | (cons* (option '(#\h "help") #f #f | |
53 | (lambda args | |
54 | (show-help) | |
55 | (exit 0))) | |
56 | (option '(#\V "version") #f #f | |
57 | (lambda args | |
58 | (show-version-and-exit "guix import cpan"))) | |
59 | %standard-import-options)) | |
60 | ||
61 | \f | |
62 | ;;; | |
63 | ;;; Entry point. | |
64 | ;;; | |
65 | ||
66 | (define (guix-import-cpan . args) | |
67 | (define (parse-options) | |
68 | ;; Return the alist of option values. | |
69 | (args-fold* args %options | |
70 | (lambda (opt name arg result) | |
69daee23 | 71 | (leave (G_ "~A: unrecognized option~%") name)) |
d45dc6da EB |
72 | (lambda (arg result) |
73 | (alist-cons 'argument arg result)) | |
74 | %default-options)) | |
75 | ||
76 | (let* ((opts (parse-options)) | |
77 | (args (filter-map (match-lambda | |
78 | (('argument . value) | |
79 | value) | |
80 | (_ #f)) | |
81 | (reverse opts)))) | |
82 | (match args | |
83 | ((package-name) | |
84 | (let ((sexp (cpan->guix-package package-name))) | |
85 | (unless sexp | |
69daee23 | 86 | (leave (G_ "failed to download meta-data for package '~a'~%") |
d45dc6da EB |
87 | package-name)) |
88 | sexp)) | |
89 | (() | |
69daee23 | 90 | (leave (G_ "too few arguments~%"))) |
d45dc6da | 91 | ((many ...) |
69daee23 | 92 | (leave (G_ "too many arguments~%")))))) |