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-rw-r--r--build-aux/download.scm73
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diff --git a/build-aux/download.scm b/build-aux/download.scm
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-;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2017 Ludovic Courtès <ludo@gnu.org>
-;;; Copyright © 2014, 2015 Mark H Weaver <mhw@netris.org>
-;;; Copyright © 2017 Efraim Flashner <efraim@flashner.co.il>
-;;;
-;;; 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/>.
-
-;;;
-;;; Download a binary file from an external source.
-;;;
-
-(use-modules (ice-9 match)
- (web uri)
- (web client)
- (rnrs io ports)
- (srfi srfi-11)
- (guix base16)
- (guix hash))
-
-(define %url-base
- "http://alpha.gnu.org/gnu/guix/bootstrap"
-
- ;; Alternately:
- ;;"http://www.fdn.fr/~lcourtes/software/guix/packages"
- )
-
-(define (file-name->uri file)
- "Return the URI for FILE."
- (match (string-tokenize file (char-set-complement (char-set #\/)))
- ((_ ... system basename)
- (string->uri
- (string-append %url-base "/" system
- (match system
- ("aarch64-linux"
- "/20170217/")
- ("armhf-linux"
- "/20150101/")
- (_
- "/20131110/"))
- basename)))))
-
-(match (command-line)
- ((_ file expected-hash)
- (let ((uri (file-name->uri file)))
- (format #t "downloading file `~a'~%from `~a'...~%"
- file (uri->string uri))
- (let*-values (((resp data) (http-get uri #:decode-body? #f))
- ((hash) (bytevector->base16-string (sha256 data)))
- ((part) (string-append file ".part")))
- (if (string=? expected-hash hash)
- (begin
- (call-with-output-file part
- (lambda (port)
- (put-bytevector port data)))
- (rename-file part file))
- (begin
- (format (current-error-port)
- "file at `~a' has SHA256 ~a; expected ~a~%"
- (uri->string uri) hash expected-hash)
- (exit 1)))))))