1 ;;; Guix --- Nix package management from Guile. -*- coding: utf-8 -*-
2 ;;; Copyright (C) 2012 Ludovic Courtès <ludo@gnu.org>
4 ;;; This file is part of Guix.
6 ;;; Guix is free software; you can redistribute it and/or modify it
7 ;;; under the terms of the GNU General Public License as published by
8 ;;; the Free Software Foundation; either version 3 of the License, or (at
9 ;;; your option) any later version.
11 ;;; Guix is distributed in the hope that it will be useful, but
12 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
13 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 ;;; GNU General Public License for more details.
16 ;;; You should have received a copy of the GNU General Public License
17 ;;; along with Guix. If not, see <http://www.gnu.org/licenses/>.
19 (define-module (guix http)
20 #:use-module (guix derivations)
21 #:use-module (guix utils)
22 #:export (http-fetch))
26 ;;; Produce fixed-output derivations with data fetched over HTTP.
30 (define* (http-fetch store url hash-algo hash
32 #:key (system (%current-system)))
33 "Return the path of a fixed-output derivation in STORE that fetches URL,
34 which is expected to have hash HASH of type HASH-ALGO (a symbol). By
35 default, the file name is the base name of URL; optionally, NAME can specify
36 a different file name."
39 (use-modules (guix build http))
40 (http-fetch ,url %output)))
42 (build-expression->derivation store (or name (basename url)) system
46 #:modules '((guix build http))))