From 376a9fa08fa3ffb5a5ab0980acf75abdfc797486 Mon Sep 17 00:00:00 2001 From: Pierre Neidhardt Date: Wed, 17 Oct 2018 18:56:38 +0200 Subject: [PATCH] gx-download (DRAFT) --- guix/build/gx.scm | 60 ++++++++++++++++++++ guix/gx-download.scm | 131 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 191 insertions(+) create mode 100644 guix/build/gx.scm create mode 100644 guix/gx-download.scm diff --git a/guix/build/gx.scm b/guix/build/gx.scm new file mode 100644 index 000000000..4ba0197b4 --- /dev/null +++ b/guix/build/gx.scm @@ -0,0 +1,60 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2018 Pierre Neidhardt +;;; +;;; 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 . + +(define-module (guix build gx) + #:use-module (guix build utils) + #:use-module (ice-9 popen) + #:export (gx-fetch)) + +;;; Commentary: +;;; +;;; This is the build-side support code of (guix gx-download). It allows a +;;; gx hash to be fetched. +;;; +;;; Code: + +(define* (gx-fetch hash directory + #:key (gx-command "gx")) + "Fetch IPFS HASH into DIRECTORY. HASH must be a valid IPFS hash. +Return #t on success, #f otherwise." + + (mkdir-p directory) + + (with-directory-excursion directory + ;; TODO: Silence verbose output. + + ;; Initialization is interactive, but we can shut it up by piping it to + ;; nothing. + (let ((port (open-pipe* OPEN_WRITE gx-command "init"))) + (display "\n" port) + (if (not (eqv? 0 (status:exit-val (close-pipe port)))) + (error "Cannot initialize gx package"))) + + ;; Fetch to the "vendor" directory. + (let ((port (open-pipe* OPEN_WRITE gx-command "import" "--local" hash))) + (display "N\n" port) + (if (not (eqv? 0 (status:exit-val (close-pipe port)))) + (error "Cannot import gx package"))) + + (delete-file "package.json") + (mkdir-p "gx/ipfs") + (rename-file (string-append "vendor/gx/ipfs/" hash) (string-append "gx/ipfs/" hash)) + (delete-file-recursively "vendor") + #t)) + +;;; gx.scm ends here diff --git a/guix/gx-download.scm b/guix/gx-download.scm new file mode 100644 index 000000000..4acf7bf61 --- /dev/null +++ b/guix/gx-download.scm @@ -0,0 +1,131 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2018 Pierre Neidhardt +;;; +;;; 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 . + +(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 method that uses gx to fetch a specific hash over IPFS. +;;; See https://github.com/whyrusleeping/gx. +;;; The hash is specified with a object. +;;; +;;; Code: + +(define-record-type* + 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 +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 -- 2.19.1