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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019, 2020 Timothy Sample <samplet@ngyro.com>
;;; Copyright © 2020 Jelle Licht <jlicht@fsfe.org>
;;;
;;; 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 npm-binary)
#:use-module (guix import json)
#:use-module (guix import utils)
#:use-module (guix memoization)
#:use-module (guix utils)
#:use-module (ice-9 match)
#:use-module (ice-9 regex)
#:use-module (ice-9 receive)
#:use-module (json)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-9)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-41)
#:use-module (web client)
#:use-module (web response)
#:use-module (web uri)
#:export (npm-binary-recursive-import
npm-binary->guix-package))
(module-autoload! (current-module) '(semver)
'(string->semver
semver->string
semver?
semver=?
semver>?))
(module-autoload! (current-module) '(semver ranges)
'(string->semver-range
semver-range-contains?
*semver-range-any*))
(define-json-mapping <dist-tags> make-dist-tags dist-tags?
json->dist-tags
(latest dist-tags-latest "latest" string->semver))
(define-record-type <versioned-package>
(make-versioned-package name version)
versioned-package?
(name versioned-package-name) ;string
(version versioned-package-version)) ;string
(define (dependencies->versioned-packages entries)
(match entries
(((names . versions) ...)
(map make-versioned-package names versions))
(_ '())))
(define-json-mapping <dist> make-dist dist?
json->dist
(tarball dist-tarball))
(define-json-mapping <package-revision> make-package-revision package-revision?
json->package-revision
(name package-revision-name)
(version package-revision-version "version" string->semver) ;semver
(home-page package-revision-home-page "homepage") ;string
(dependencies package-revision-dependencies "dependencies" ;list of versioned-package
dependencies->versioned-packages)
(license package-revision-license "license" spdx-string->license) ;license
(description package-revision-description) ;string
(dist package-revision-dist "dist" json->dist)) ;dist
(define (versions->package-revisions versions)
(match versions
(((version . package-spec) ...)
(map json->package-revision package-spec))
(_ '())))
(define (versions->package-versions versions)
(match versions
(((version . package-spec) ...)
(map string->semver versions))
(_ '())))
(define-json-mapping <meta-package> make-meta-package meta-package?
json->meta-package
(name meta-package-name) ;string
(description meta-package-description) ;string
(dist-tags meta-package-dist-tags "dist-tags" json->dist-tags) ;dist-tags
(revisions meta-package-revisions "versions" versions->package-revisions))
(define *registry* (string->uri "https://registry.npmjs.org"))
(define lookup-meta-package
(mlambda (name)
(let ((uri (build-uri (uri-scheme *registry*)
#:host (uri-host *registry*)
#:path (string-append "/" (uri-encode name)))))
(receive (response body)
(http-get uri #:streaming? #t)
(let ((status (response-code response)))
(unless (and (<= 200 status) (< status 300))
(scm-error 'http-error "lookup-meta-package"
"Received HTTP error: ~s: ~s for ~s"
(list (response-code response)
(response-reason-phrase response))
(list (response-code response)))))
(json->meta-package body)))))
(define (http-error-code arglist)
(match arglist
(('http-error _ _ _ (code)) code)
(_ #f)))
(define (meta-package-versions meta)
(map package-revision-version
(meta-package-revisions meta)))
(define (meta-package-latest meta)
(and=> (meta-package-dist-tags meta) dist-tags-latest))
(define* (meta-package-package meta #:optional
(version (meta-package-latest meta)))
(match version
((? semver?) (find (lambda (revision)
(semver=? version (package-revision-version revision)))
(meta-package-revisions meta)))
((? string?) (meta-package-package meta (string->semver version)))
(_ #f)))
(define* (semver-latest svs #:optional (svr *semver-range-any*))
(find (cut semver-range-contains? svr <>)
(sort svs semver>?)))
(define* (resolve-package name #:optional (svr *semver-range-any*))
(let* ((meta (lookup-meta-package name))
(version (semver-latest (or (meta-package-versions meta) '()) svr))
(pkg (meta-package-package meta version)))
pkg))
;;;
;;; Converting packages
;;;
(define (hash-url url)
"Downloads the resource at URL and computes the base32 hash for it."
(call-with-temporary-output-file
(lambda (temp port)
(begin ((@ (guix import utils) url-fetch) url temp)
(guix-hash-url temp)))))
(define *suffix* "--binary")
(define (npm-name->name npm-name)
"Return a Guix package name for the npm package with name NPM-NAME."
(define (clean name)
(string-map (lambda (chr) (if (char=? chr #\/) #\- chr))
(string-filter (negate (cut char=? <> #\@)) name)))
(string-append (guix-name "node-" (clean npm-name)) *suffix*))
(define (npm-name->input npm-name)
"Return the `inputs' entry for NPM-NAME."
(let ((name (npm-name->name npm-name)))
`(,(if (string-suffix? *suffix* name)
(string-drop-right name (string-length *suffix*))
name)
(,'unquote ,(string->symbol name)))))
(define (npm-package->package-sexp npm-package)
"Return the `package' s-expression for an NPM-PACKAGE."
(match npm-package
(($ <package-revision> name version home-page dependencies license description dist)
(let* ((name (npm-name->name name))
(url (dist-tarball dist))
(dependency-names (map versioned-package-name dependencies))
(synopsis description))
(values
`(package
(name ,name)
(version ,(semver->string (package-revision-version npm-package)))
(source (origin
(method url-fetch)
(uri ,url)
(sha256 (base32 ,(hash-url url)))))
(build-system node-build-system)
(arguments
`(#:phases
(modify-phases %standard-phases
(delete 'configure)
(delete 'build))))
,@(match dependency-names
(() '())
((dependency-names ...)
`((inputs
(,'quasiquote ,(map npm-name->input
(sort dependency-names string<)))))))
(home-page ,home-page)
(synopsis ,synopsis)
(description ,description)
(license ,license))
(map (match-lambda (($ <versioned-package> name version)
(list name version)))
dependencies))))
(_ #f)))
;;;
;;; Interface
;;;
(define npm-binary->guix-package
;; (memoize)
(lambda* (name #:key (version *semver-range-any*) #:allow-other-keys)
(let* ((svr (match version
((? string?) (string->semver-range version))
(_ version)))
(pkg (resolve-package name svr)))
(npm-package->package-sexp pkg))))
(define* (npm-binary-recursive-import package-name #:key version)
(recursive-import package-name
#:repo->guix-package npm-binary->guix-package
#:version version
#:guix-name npm-name->name))
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