| 1 | ;;; GNU Guix --- Functional package management for GNU |
| 2 | ;;; Copyright © 2012, 2013, 2017 Ludovic Courtès <ludo@gnu.org> |
| 3 | ;;; Copyright © 2014, 2015 Mark H Weaver <mhw@netris.org> |
| 4 | ;;; Copyright © 2017 Efraim Flashner <efraim@flashner.co.il> |
| 5 | ;;; |
| 6 | ;;; This file is part of GNU Guix. |
| 7 | ;;; |
| 8 | ;;; GNU Guix is free software; you can redistribute it and/or modify it |
| 9 | ;;; under the terms of the GNU General Public License as published by |
| 10 | ;;; the Free Software Foundation; either version 3 of the License, or (at |
| 11 | ;;; your option) any later version. |
| 12 | ;;; |
| 13 | ;;; GNU Guix is distributed in the hope that it will be useful, but |
| 14 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | ;;; GNU General Public License for more details. |
| 17 | ;;; |
| 18 | ;;; You should have received a copy of the GNU General Public License |
| 19 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. |
| 20 | |
| 21 | ;;; |
| 22 | ;;; Download a binary file from an external source. |
| 23 | ;;; |
| 24 | |
| 25 | (use-modules (ice-9 match) |
| 26 | (web uri) |
| 27 | (web client) |
| 28 | (rnrs io ports) |
| 29 | (srfi srfi-11) |
| 30 | (guix base16) |
| 31 | (guix hash)) |
| 32 | |
| 33 | (define %url-base |
| 34 | "http://alpha.gnu.org/gnu/guix/bootstrap" |
| 35 | |
| 36 | ;; Alternately: |
| 37 | ;;"http://www.fdn.fr/~lcourtes/software/guix/packages" |
| 38 | ) |
| 39 | |
| 40 | (define (file-name->uri file) |
| 41 | "Return the URI for FILE." |
| 42 | (match (string-tokenize file (char-set-complement (char-set #\/))) |
| 43 | ((_ ... system basename) |
| 44 | (string->uri |
| 45 | (string-append %url-base "/" system |
| 46 | (match system |
| 47 | ("aarch64-linux" |
| 48 | "/20170217/") |
| 49 | ("armhf-linux" |
| 50 | "/20150101/") |
| 51 | (_ |
| 52 | "/20131110/")) |
| 53 | basename))))) |
| 54 | |
| 55 | (match (command-line) |
| 56 | ((_ file expected-hash) |
| 57 | (let ((uri (file-name->uri file))) |
| 58 | (format #t "downloading file `~a'~%from `~a'...~%" |
| 59 | file (uri->string uri)) |
| 60 | (let*-values (((resp data) (http-get uri #:decode-body? #f)) |
| 61 | ((hash) (bytevector->base16-string (sha256 data))) |
| 62 | ((part) (string-append file ".part"))) |
| 63 | (if (string=? expected-hash hash) |
| 64 | (begin |
| 65 | (call-with-output-file part |
| 66 | (lambda (port) |
| 67 | (put-bytevector port data))) |
| 68 | (rename-file part file)) |
| 69 | (begin |
| 70 | (format (current-error-port) |
| 71 | "file at `~a' has SHA256 ~a; expected ~a~%" |
| 72 | (uri->string uri) hash expected-hash) |
| 73 | (exit 1))))))) |