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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Federico Beffa <nee-git@hidamari.blue>
;;;
;;; 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 import hex)
#:use-module (ice-9 match)
#:use-module (ice-9 regex)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-35)
#:use-module (guix import json)
#:use-module (guix import hackage)
#:use-module (guix memoization)
#:use-module (guix packages)
#:use-module (guix upstream)
#:use-module (guix store)
#:use-module (guix base32)
#:use-module (guix hash)
#:use-module (guix import utils)
#:use-module ((guix download) #:select (download-to-store url-fetch))
#:export (hex-fetch))
(define %packages-url "https://hex.pm/api/packages/")
(define %tarball-url "https://repo.hex.pm/tarballs/")
(define %package-name-prefix "hex-")
(define (hex-name->guix-name name)
(if (string-prefix? %package-name-prefix name)
(snake-case name)
(string-append %package-name-prefix (snake-case name))))
(define (make-input-entry name)
(list name (list 'unquote (string->symbol name))))
(define (as-list item/s)
(if (list? item/s)
item/s
(list item/s)))
(define (list-or-single item/s)
(if (null? (cdr item/s))
(car item/s)
items))
;;; TODO take version as second arg
(define (hex-fetch package-name)
(define url (string-append %packages-url package-name))
(define json (json-fetch url))
(define meta (assoc-ref json "meta"))
(define latest-release (car (assoc-ref json "releases")))
(define latest-release-info-url (assoc-ref latest-release "url"))
(define latest-release-version (assoc-ref latest-release "version"))
(define release-json (json-fetch latest-release-info-url))
(define release-meta (assoc-ref release-json "meta"))
;; TODO maybe also check the versions and optional
(define inputs (map car (assoc-ref release-json "requirements")))
(define tarball-name (string-append package-name "-" latest-release-version ".tar"))
(define source-url (string-append %tarball-url tarball-name))
(define tarball (with-store store
(download-to-store store source-url)))
`(package
(name ,(hex-name->guix-name package-name))
(version ,latest-release-version)
(source (origin
(method url-fetch/hex.pm)
(uri (string-append ,@(list (string-append %tarball-url package-name "-")
'version ".tar")))
(sha256
(base32
,(if tarball
(bytevector->nix-base32-string (file-sha256 tarball))
"failed to download tar archive")))))
(build-system hex-build-system)
(inputs ,(list 'quasiquote
(map (lambda (input-hex)
(define input-guix (hex-name->guix-name input-hex))
(make-input-entry input-guix))
inputs)))
(native-inputs ,(list 'quasiquote
(map (lambda (input-hex)
(define input-guix (match input-hex
("rebar3" "rebar3")
("mix" "elixir")
(input (hex-name->guix-name input))))
(make-input-entry input-guix))
(match (assoc-ref release-meta "build_tools")
(#f '())
((? list? lst) lst)
(single-tool (list single-tool))))))
(home-page "")
(synopsis "")
(description ,(assoc-ref meta "description"))
(license ,(list-or-single
(map string->license
(as-list (or (assoc-ref meta "licenses") '())))))))
(define string->license
;; copied from the hackage importer, slightly edited some names
;; TODO: find a complete list of licences on hex.pm
(match-lambda
("GPL-2" 'gpl2)
("GPL-3" 'gpl3)
("GPL" "'gpl??")
("AGPL-3" 'agpl3)
("AGPL" "'agpl??")
("LGPL-2.1" 'lgpl2.1)
("LGPL-3" 'lgpl3)
("LGPL" "'lgpl??")
("BSD2" 'bsd-2)
("BSD3" 'bsd-3)
("MIT" 'expat)
("ISC" 'isc)
("MPL" 'mpl2.0)
("CC0-1.0" 'cc0)
("Apache 2.0" 'asl2.0)
((x) (string->license x))
((lst ...) `(list ,@(map string->license lst)))
(_ #f)))
|