;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org> ;;; Copyright © 2015, 2017 Ricardo Wurmus <rekado@elephly.net> ;;; ;;; 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 json) #:use-module (json) #:use-module (guix ui) #:use-module (guix utils) #:use-module (guix scripts) #:use-module (guix import utils) #:use-module (guix import print) #:use-module (guix scripts import) #:use-module (guix packages) #:use-module (srfi srfi-1) #:use-module (srfi srfi-9 gnu) #:use-module (srfi srfi-11) #:use-module (srfi srfi-37) #:use-module (srfi srfi-41) #:use-module (ice-9 match) #:use-module (ice-9 rdelim) #:use-module (ice-9 format) #:export (guix-import-json)) ;;; ;;; Command-line options. ;;; (define %default-options '()) (define (show-help) (display (G_ "Usage: guix import json PACKAGE-FILE Import and convert the JSON package definition in PACKAGE-FILE.\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 json"))) %standard-import-options)) ;;; ;;; Entry point. ;;; (define (guix-import-json . args) (define (parse-options) ;; Return the alist of option values. (args-fold* args %options (lambda (opt name arg result) (leave (G_ "~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 ((file-name) (catch 'json-invalid (lambda () (let ((json (json-string->scm (with-input-from-file file-name read-string)))) ;; TODO: also print define-module boilerplate (package->code (alist->package json)))) (lambda _ (leave (G_ "invalid JSON in file '~a'~%") file-name)))) (() (leave (G_ "too few arguments~%"))) ((many ...) (leave (G_ "too many arguments~%"))))))