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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))
generated by cgit v1.2.3 (git 2.44.0) at 2024-05-19 01:40:24 +0000