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gx-download (DRAFT)
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Pierre Neidhardt
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376a9fa08f
2 changed files with 191 additions and 0 deletions
60
guix/build/gx.scm
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60
guix/build/gx.scm
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2018 Pierre Neidhardt <mail@ambrevar.xyz>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix build gx)
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#:use-module (guix build utils)
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#:use-module (ice-9 popen)
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#:export (gx-fetch))
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;;; Commentary:
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;;;
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;;; This is the build-side support code of (guix gx-download). It allows a
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;;; gx hash to be fetched.
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;;;
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;;; Code:
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(define* (gx-fetch hash directory
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#:key (gx-command "gx"))
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"Fetch IPFS HASH into DIRECTORY. HASH must be a valid IPFS hash.
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Return #t on success, #f otherwise."
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(mkdir-p directory)
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(with-directory-excursion directory
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;; TODO: Silence verbose output.
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;; Initialization is interactive, but we can shut it up by piping it to
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;; nothing.
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(let ((port (open-pipe* OPEN_WRITE gx-command "init")))
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(display "\n" port)
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(if (not (eqv? 0 (status:exit-val (close-pipe port))))
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(error "Cannot initialize gx package")))
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;; Fetch to the "vendor" directory.
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(let ((port (open-pipe* OPEN_WRITE gx-command "import" "--local" hash)))
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(display "N\n" port)
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(if (not (eqv? 0 (status:exit-val (close-pipe port))))
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(error "Cannot import gx package")))
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(delete-file "package.json")
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(mkdir-p "gx/ipfs")
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(rename-file (string-append "vendor/gx/ipfs/" hash) (string-append "gx/ipfs/" hash))
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(delete-file-recursively "vendor")
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#t))
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;;; gx.scm ends here
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131
guix/gx-download.scm
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131
guix/gx-download.scm
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2018 Pierre Neidhardt <mail@ambrevar.xyz>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix gx-download)
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#:use-module (guix gexp)
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#:use-module (guix store)
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#:use-module (guix monads)
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#:use-module (guix records)
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#:use-module (guix packages)
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#:use-module (guix utils)
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#:use-module (guix modules)
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;; #:autoload (guix build-system gnu) (standard-packages)
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#:use-module (ice-9 match)
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#:use-module (ice-9 vlist)
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#:use-module (srfi srfi-1)
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#:export (gx-reference
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gx-reference?
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gx-reference-hash
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gx-fetch
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gx-version
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gx-file-name))
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;;; Commentary:
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;;;
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;;; An <origin> method that uses gx to fetch a specific hash over IPFS.
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;;; See https://github.com/whyrusleeping/gx.
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;;; The hash is specified with a <gx-reference> object.
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;;;
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;;; Code:
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(define-record-type* <gx-reference>
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gx-reference make-gx-reference
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gx-reference?
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(hash gx-reference-hash))
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(define (gx-package)
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"Return the default gx package."
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(let ((distro (resolve-interface '(gnu packages ipfs))))
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(module-ref distro 'gx)))
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(define* (gx-fetch ref hash-algo hash
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#:optional name
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#:key (system (%current-system)) (guile (default-guile))
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(gx (gx-package)))
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"Return a fixed-output derivation that fetches REF, a <gx-reference>
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object. The output is expected to have recursive hash HASH of type
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HASH-ALGO (a symbol). Use NAME as the file name, or a generic name if #f."
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;; (define inputs
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;; ;; When doing 'git clone --recursive', we need sed, grep, etc. to be
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;; ;; available so that 'git submodule' works.
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;; ;; (if (git-reference-recursive? ref)
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;; ;; (standard-packages)
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;; ;; '())
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;; )
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;; (define zlib
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;; (module-ref (resolve-interface '(gnu packages compression)) 'zlib))
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;; (define config.scm
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;; (scheme-file "config.scm"
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;; #~(begin
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;; (define-module (guix config)
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;; #:export (%libz))
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;; (define %libz
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;; #+(file-append zlib "/lib/libz")))))
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;; (define modules
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;; (cons `((guix config) => ,config.scm)
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;; (delete '(guix config)
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;; (source-module-closure '((guix build git)
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;; (guix build utils)
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;; (guix build download-nar))))))
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(define build
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(with-imported-modules '((guix build gx)
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(guix build utils))
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#~(begin
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(use-modules (guix build gx)
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;; (guix build utils)
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;; (guix build download-nar)
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;; (ice-9 match)
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)
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;; The 'git submodule' commands expects Coreutils, sed,
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;; grep, etc. to be in $PATH.
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;; (set-path-environment-variable "PATH" '("bin")
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;; (match '#+inputs
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;; (((names dirs outputs ...) ...)
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;; dirs)))
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(or (gx-fetch '#$(gx-reference-hash ref)
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#$output
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#:gx-command (string-append #+gx "/bin/gx"))
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;; (download-nar #$output)
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))))
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(mlet %store-monad ((guile (package->derivation guile system)))
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(gexp->derivation (or name "gx-checkout") build
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#:system system
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#:local-build? #t
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#:hash-algo hash-algo
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#:hash hash
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#:recursive? #t
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#:guile-for-build guile)))
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(define (gx-version version revision hash)
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"Return the version string for packages using gx-download."
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(string-append version "-" revision "." (string-take hash 7)))
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(define (gx-file-name name version)
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"Return the file-name for packages using gx-download."
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(string-append name "-" version "-checkout"))
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;;; gx-download.scm ends here
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