guix/build-aux/download.scm
Ludovic Courtès 233e76769a Update license headers.
Change all license headers, except guix/build/* and ld-wrapper.scm, with
this code:

  (use-modules (guix build utils)
	       (srfi srfi-1))

  (fluid-set! %default-port-encoding "UTF-8")

  (substitute* (remove (lambda (f)
			 (or (string-contains f ".tar.")
			     (string-contains f ".git/")
			     (string-contains f ".so")
			     (string-suffix? ".o" f)
			     (string-suffix? ".a" f)
			     (string-suffix? ".go" f)
			     (string-suffix? ".pdf" f)
			     (string-suffix? ".png" f)
			     (string-suffix? ".info" f)
			     (equal? (basename f) "guix-daemon")
			     (equal? (basename f) "nix-setuid-helper")
			     (string-contains f "nix-upstream/")
			     (string-contains f "distro/packages/bootstrap/")))
		       (find-files "." "\\.[a-z]+$"))
    (("^([[:graph:]]+) This file is part of Guix." _ comment-start)
     (string-append comment-start " This file is part of GNU Guix."))
    (("^([[:graph:]]+) Guix --- Nix package management.*" _ comment-start)
     (string-append comment-start
		    " GNU Guix --- Functional package management for GNU\n"))
    (("^([[:graph:]]+) Guix is " _ comment-start)
     (string-append comment-start " GNU Guix is "))
    (("^([[:graph:]]+) along with Guix." _ comment-start)
     (string-append comment-start " along with GNU Guix."))
    (("^([[:graph:]]+) Copyright \\(C\\)" _ comment-start)
     (string-append comment-start " Copyright ©")))

Change headers using C-style comments manually.
2013-01-06 00:47:50 +01:00

58 lines
2.1 KiB
Scheme

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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 utils))
(define %url-base
"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
"/20121115/" 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)))))))