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Diffstat (limited to 'guix/gx-download.scm')
-rw-r--r-- | guix/gx-download.scm | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/guix/gx-download.scm b/guix/gx-download.scm new file mode 100644 index 0000000000..4acf7bf61d --- /dev/null +++ b/guix/gx-download.scm @@ -0,0 +1,131 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2018 Pierre Neidhardt <mail@ambrevar.xyz> +;;; +;;; 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/>. + +(define-module (guix gx-download) + #:use-module (guix gexp) + #:use-module (guix store) + #:use-module (guix monads) + #:use-module (guix records) + #:use-module (guix packages) + #:use-module (guix utils) + #:use-module (guix modules) + ;; #:autoload (guix build-system gnu) (standard-packages) + #:use-module (ice-9 match) + #:use-module (ice-9 vlist) + #:use-module (srfi srfi-1) + #:export (gx-reference + gx-reference? + gx-reference-hash + + gx-fetch + gx-version + gx-file-name)) + +;;; Commentary: +;;; +;;; An <origin> method that uses gx to fetch a specific hash over IPFS. +;;; See https://github.com/whyrusleeping/gx. +;;; The hash is specified with a <gx-reference> object. +;;; +;;; Code: + +(define-record-type* <gx-reference> + gx-reference make-gx-reference + gx-reference? + (hash gx-reference-hash)) + +(define (gx-package) + "Return the default gx package." + (let ((distro (resolve-interface '(gnu packages ipfs)))) + (module-ref distro 'gx))) + +(define* (gx-fetch ref hash-algo hash + #:optional name + #:key (system (%current-system)) (guile (default-guile)) + (gx (gx-package))) + "Return a fixed-output derivation that fetches REF, a <gx-reference> +object. The output is expected to have recursive hash HASH of type +HASH-ALGO (a symbol). Use NAME as the file name, or a generic name if #f." + ;; (define inputs + ;; ;; When doing 'git clone --recursive', we need sed, grep, etc. to be + ;; ;; available so that 'git submodule' works. + ;; ;; (if (git-reference-recursive? ref) + ;; ;; (standard-packages) + ;; ;; '()) + ;; ) + + ;; (define zlib + ;; (module-ref (resolve-interface '(gnu packages compression)) 'zlib)) + + ;; (define config.scm + ;; (scheme-file "config.scm" + ;; #~(begin + ;; (define-module (guix config) + ;; #:export (%libz)) + + ;; (define %libz + ;; #+(file-append zlib "/lib/libz"))))) + + ;; (define modules + ;; (cons `((guix config) => ,config.scm) + ;; (delete '(guix config) + ;; (source-module-closure '((guix build git) + ;; (guix build utils) + ;; (guix build download-nar)))))) + + (define build + (with-imported-modules '((guix build gx) + (guix build utils)) + #~(begin + (use-modules (guix build gx) + ;; (guix build utils) + ;; (guix build download-nar) + ;; (ice-9 match) + ) + + ;; The 'git submodule' commands expects Coreutils, sed, + ;; grep, etc. to be in $PATH. + ;; (set-path-environment-variable "PATH" '("bin") + ;; (match '#+inputs + ;; (((names dirs outputs ...) ...) + ;; dirs))) + + (or (gx-fetch '#$(gx-reference-hash ref) + #$output + #:gx-command (string-append #+gx "/bin/gx")) + ;; (download-nar #$output) + )))) + + (mlet %store-monad ((guile (package->derivation guile system))) + (gexp->derivation (or name "gx-checkout") build + #:system system + #:local-build? #t + #:hash-algo hash-algo + #:hash hash + #:recursive? #t + #:guile-for-build guile))) + +(define (gx-version version revision hash) + "Return the version string for packages using gx-download." + (string-append version "-" revision "." (string-take hash 7))) + +(define (gx-file-name name version) + "Return the file-name for packages using gx-download." + (string-append name "-" version "-checkout")) + +;;; gx-download.scm ends here |