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233e7676 | 1 | ;;; GNU Guix --- Functional package management for GNU |
4c0c4db0 | 2 | ;;; Copyright © 2012, 2013, 2017 Ludovic Courtès <ludo@gnu.org> |
aa1e1947 | 3 | ;;; Copyright © 2014, 2015 Mark H Weaver <mhw@netris.org> |
3b88f376 | 4 | ;;; Copyright © 2017 Efraim Flashner <efraim@flashner.co.il> |
ac5aa288 | 5 | ;;; |
233e7676 | 6 | ;;; This file is part of GNU Guix. |
ac5aa288 | 7 | ;;; |
233e7676 | 8 | ;;; GNU Guix is free software; you can redistribute it and/or modify it |
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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 | ;;; | |
233e7676 | 13 | ;;; GNU Guix is distributed in the hope that it will be useful, but |
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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 | |
233e7676 | 19 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. |
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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) | |
4c0c4db0 | 30 | (guix base16) |
a1c39ede | 31 | (guix hash)) |
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32 | |
33 | (define %url-base | |
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34 | "http://alpha.gnu.org/gnu/guix/bootstrap" |
35 | ||
36 | ;; Alternately: | |
37 | ;;"http://www.fdn.fr/~lcourtes/software/guix/packages" | |
38 | ) | |
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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) | |
3b88f376 | 44 | (string->uri |
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45 | (string-append %url-base "/" system |
46 | (match system | |
47 | ("aarch64-linux" | |
48 | "/20170217/") | |
49 | ("armhf-linux" | |
50 | "/20150101/") | |
51 | (_ | |
52 | "/20131110/")) | |
53 | basename))))) | |
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54 | |
55 | (match (command-line) | |
56 | ((_ file expected-hash) | |
57 | (let ((uri (file-name->uri file))) | |
8c3d8894 | 58 | (format #t "downloading file `~a'~%from `~a'...~%" |
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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))))))) |