;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2016 David Craven <david@craven.ch> ;;; ;;; 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 crate) #:use-module (guix base32) #:use-module (guix build-system cargo) #:use-module ((guix download) #:prefix download:) #:use-module (gcrypt hash) #:use-module (guix http-client) #:use-module (guix import json) #:use-module (guix import utils) #:use-module ((guix licenses) #:prefix license:) #:use-module (guix monads) #:use-module (guix packages) #:use-module (guix upstream) #:use-module (guix utils) #:use-module (ice-9 match) #:use-module (ice-9 pretty-print) ; recursive #:use-module (json) #:use-module (srfi srfi-1) #:use-module (srfi srfi-2) #:use-module (srfi srfi-26) #:export (crate->guix-package guix-package->crate-name %crate-updater)) (define (crate-fetch crate-name callback) "Fetch the metadata for CRATE-NAME from crates.io and call the callback." (define (crates->inputs crates) (sort (map (cut assoc-ref <> "crate_id") crates) string-ci<?)) (define (string->license string) (map spdx-string->license (string-split string #\/))) (define (crate-kind-predicate kind) (lambda (dep) (string=? (assoc-ref dep "kind") kind))) (and-let* ((crate-json (json-fetch-alist (string-append crate-url crate-name))) (crate (assoc-ref crate-json "crate")) (name (assoc-ref crate "name")) (version (assoc-ref crate "max_version")) (homepage (assoc-ref crate "homepage")) (repository (assoc-ref crate "repository")) (synopsis (assoc-ref crate "description")) (description (assoc-ref crate "description")) (license (or (and=> (assoc-ref crate "license") string->license) '())) ;missing license info (path (string-append "/" version "/dependencies")) (deps-json (json-fetch-alist (string-append crate-url name path))) (deps (assoc-ref deps-json "dependencies")) (input-crates (filter (crate-kind-predicate "normal") deps)) (native-input-crates (filter (lambda (dep) (not ((crate-kind-predicate "normal") dep))) deps)) (inputs (crates->inputs input-crates)) (native-inputs (crates->inputs native-input-crates)) (home-page (match homepage (() repository) (_ homepage)))) (callback #:name name #:version version #:inputs inputs #:native-inputs native-inputs #:home-page home-page #:synopsis synopsis #:description description #:license license))) (define* (make-crate-sexp #:key name version inputs native-inputs home-page synopsis description license #:allow-other-keys) "Return the `package' s-expression for a rust package with the given NAME, VERSION, INPUTS, NATIVE-INPUTS, HOME-PAGE, SYNOPSIS, DESCRIPTION, and LICENSE." (let* ((port (http-fetch (crate-uri name version))) (guix-name (crate-name->package-name name)) (inputs (map crate-name->package-name inputs)) (native-inputs (map crate-name->package-name native-inputs)) (pkg `(package (name ,guix-name) (version ,version) (source (origin (method url-fetch) (uri (crate-uri ,name version)) (file-name (string-append name "-" version ".tar.gz")) (sha256 (base32 ,(bytevector->nix-base32-string (port-sha256 port)))))) (build-system cargo-build-system) ,@(maybe-native-inputs native-inputs "src") ,@(maybe-inputs inputs "src") (home-page ,(match home-page (() "") (_ home-page))) (synopsis ,synopsis) (description ,(beautify-description description)) (license ,(match license (() #f) ((license) license) (_ `(list ,@license))))))) (close-port port) pkg)) (define (crate->guix-package crate-name) "Fetch the metadata for CRATE-NAME from crates.io, and return the `package' s-expression corresponding to that package, or #f on failure." (crate-fetch crate-name make-crate-sexp)) (define (guix-package->crate-name package) "Return the crate name of PACKAGE." (and-let* ((origin (package-source package)) (uri (origin-uri origin)) (crate-url? uri) (len (string-length crate-url)) (path (xsubstring uri len)) (parts (string-split path #\/))) (match parts ((name _ ...) name)))) (define (crate-name->package-name name) (string-append "rust-" (string-join (string-split name #\_) "-"))) ;;; ;;; Updater ;;; (define (crate-package? package) "Return true if PACKAGE is a Rust crate from crates.io." (let ((source-url (and=> (package-source package) origin-uri)) (fetch-method (and=> (package-source package) origin-method))) (and (eq? fetch-method download:url-fetch) (match source-url ((? string?) (crate-url? source-url)) ((source-url ...) (any crate-url? source-url)))))) (define (latest-release package) "Return an <upstream-source> for the latest release of PACKAGE." (let* ((crate-name (guix-package->crate-name package)) (callback (lambda* (#:key version #:allow-other-keys) version)) (version (crate-fetch crate-name callback)) (url (crate-uri crate-name version))) (upstream-source (package (package-name package)) (version version) (urls (list url))))) (define %crate-updater (upstream-updater (name 'crates) (description "Updater for crates.io packages") (pred crate-package?) (latest latest-release)))