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1 | ;;; GNU Guix --- Functional package management for GNU |
2 | ;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org> | |
3 | ;;; Copyright © 2015, 2017 Ricardo Wurmus <rekado@elephly.net> | |
4 | ;;; | |
5 | ;;; This file is part of GNU Guix. | |
6 | ;;; | |
7 | ;;; GNU Guix is free software; you can redistribute it and/or modify it | |
8 | ;;; under the terms of the GNU General Public License as published by | |
9 | ;;; the Free Software Foundation; either version 3 of the License, or (at | |
10 | ;;; your option) any later version. | |
11 | ;;; | |
12 | ;;; GNU Guix is distributed in the hope that it will be useful, but | |
13 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | ;;; GNU General Public License for more details. | |
16 | ;;; | |
17 | ;;; You should have received a copy of the GNU General Public License | |
18 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. | |
19 | ||
20 | (define-module (guix scripts import json) | |
21 | #:use-module (json) | |
22 | #:use-module (guix ui) | |
23 | #:use-module (guix utils) | |
24 | #:use-module (guix scripts) | |
25 | #:use-module (guix import utils) | |
c8934323 | 26 | #:use-module (guix import json) |
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27 | #:use-module (guix scripts import) |
28 | #:use-module (guix packages) | |
29 | #:use-module (srfi srfi-1) | |
30 | #:use-module (srfi srfi-9 gnu) | |
31 | #:use-module (srfi srfi-11) | |
32 | #:use-module (srfi srfi-37) | |
33 | #:use-module (srfi srfi-41) | |
34 | #:use-module (ice-9 match) | |
35 | #:use-module (ice-9 rdelim) | |
36 | #:use-module (ice-9 format) | |
37 | #:export (guix-import-json)) | |
38 | ||
39 | \f | |
40 | ;;; | |
41 | ;;; Command-line options. | |
42 | ;;; | |
43 | ||
44 | (define %default-options | |
45 | '()) | |
46 | ||
47 | (define (show-help) | |
48 | (display (G_ "Usage: guix import json PACKAGE-FILE | |
49 | Import and convert the JSON package definition in PACKAGE-FILE.\n")) | |
50 | (display (G_ " | |
51 | -h, --help display this help and exit")) | |
52 | (display (G_ " | |
53 | -V, --version display version information and exit")) | |
54 | (newline) | |
55 | (show-bug-report-information)) | |
56 | ||
57 | (define %options | |
58 | ;; Specification of the command-line options. | |
59 | (cons* (option '(#\h "help") #f #f | |
60 | (lambda args | |
61 | (show-help) | |
62 | (exit 0))) | |
63 | (option '(#\V "version") #f #f | |
64 | (lambda args | |
65 | (show-version-and-exit "guix import json"))) | |
66 | %standard-import-options)) | |
67 | ||
68 | \f | |
69 | ;;; | |
70 | ;;; Entry point. | |
71 | ;;; | |
72 | ||
73 | (define (guix-import-json . args) | |
74 | (define (parse-options) | |
75 | ;; Return the alist of option values. | |
76 | (args-fold* args %options | |
77 | (lambda (opt name arg result) | |
78 | (leave (G_ "~A: unrecognized option~%") name)) | |
79 | (lambda (arg result) | |
80 | (alist-cons 'argument arg result)) | |
81 | %default-options)) | |
82 | ||
83 | (let* ((opts (parse-options)) | |
84 | (args (filter-map (match-lambda | |
85 | (('argument . value) | |
86 | value) | |
87 | (_ #f)) | |
88 | (reverse opts)))) | |
89 | (match args | |
90 | ((file-name) | |
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91 | (or (json->code file-name) |
92 | (leave (G_ "invalid JSON in file '~a'~%") file-name))) | |
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93 | (() |
94 | (leave (G_ "too few arguments~%"))) | |
95 | ((many ...) | |
96 | (leave (G_ "too many arguments~%")))))) |