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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 David Thompson <davet@gnu.org>
;;; Copyright © 2016, 2020 Jelle Licht <jlicht@fsfe.org>
;;; Copyright © 2019, 2021 Timothy Sample <samplet@ngyro.com>
;;;
;;; 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 build node-build-system)
#:use-module ((guix build gnu-build-system) #:prefix gnu:)
#:use-module (guix build utils)
#:use-module (guix build json)
#:use-module (ice-9 ftw)
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:export (%standard-phases
node-build))
;; Commentary:
;;
;; Builder-side code of the standard Node/NPM package install procedure.
;;
;; Code:
(define (set-home . _)
(with-directory-excursion ".."
(let loop ((i 0))
(let ((dir (string-append "npm-home-" (number->string i))))
(if (directory-exists? dir)
(loop (1+ i))
(begin
(mkdir dir)
(setenv "HOME" (string-append (getcwd) "/" dir))
(format #t "set HOME to ~s~%" (getenv "HOME")))))))
#t)
(define (module-name module)
(let* ((package.json (string-append module "/package.json"))
(package-meta (call-with-input-file package.json read-json)))
(assoc-ref package-meta "name")))
(define (index-modules input-paths)
(define (list-modules directory)
(append-map (lambda (x)
(if (string-prefix? "@" x)
(list-modules (string-append directory "/" x))
(list (string-append directory "/" x))))
(filter (lambda (x)
(not (member x '("." ".."))))
(or (scandir directory) '()))))
(let ((index (make-hash-table (* 2 (length input-paths)))))
(for-each (lambda (dir)
(let ((nm (string-append dir "/lib/node_modules")))
(for-each (lambda (module)
(hash-set! index (module-name module) module))
(list-modules nm))))
input-paths)
index))
(define* (patch-dependencies #:key inputs #:allow-other-keys)
(define index (index-modules (map cdr inputs)))
(define (resolve-dependencies package-meta meta-key)
(fold (lambda (key+value acc)
(match key+value
('@ acc)
((key . value) (acons key (hash-ref index key value) acc))))
'()
(or (assoc-ref package-meta meta-key) '())))
(with-atomic-file-replacement "package.json"
(lambda (in out)
(let ((package-meta (read-json in)))
(assoc-set! package-meta "dependencies"
(append
'(@)
(resolve-dependencies package-meta "dependencies")
(resolve-dependencies package-meta "peerDependencies")))
(assoc-set! package-meta "devDependencies"
(append
'(@)
(resolve-dependencies package-meta "devDependencies")))
(write-json package-meta out))))
#t)
(define* (configure #:key outputs inputs #:allow-other-keys)
(let ((npm (string-append (assoc-ref inputs "node") "/bin/npm")))
(invoke npm "--offline" "--ignore-scripts" "install")
#t))
(define* (build #:key inputs #:allow-other-keys)
(let ((package-meta (call-with-input-file "package.json" read-json)))
(if (and=> (assoc-ref package-meta "scripts")
(lambda (scripts)
(assoc-ref scripts "build")))
(let ((npm (string-append (assoc-ref inputs "node") "/bin/npm")))
(invoke npm "run" "build"))
(format #t "there is no build script to run~%"))
#t))
(define* (check #:key tests? inputs #:allow-other-keys)
"Run 'npm test' if TESTS?"
(if tests?
(let ((npm (string-append (assoc-ref inputs "node") "/bin/npm")))
(invoke npm "test"))
(format #t "test suite not run~%"))
#t)
(define* (repack #:key inputs #:allow-other-keys)
(invoke "tar"
;; Add options suggested by https://reproducible-builds.org/docs/archives/
"--sort=name"
(string-append "--mtime=@" (getenv "SOURCE_DATE_EPOCH"))
"--owner=0"
"--group=0"
"--numeric-owner"
"-czf" "../package.tgz" ".")
#t)
(define* (install #:key outputs inputs #:allow-other-keys)
"Install the node module to the output store item."
(let ((out (assoc-ref outputs "out"))
(npm (string-append (assoc-ref inputs "node") "/bin/npm")))
(invoke npm "--prefix" out
"--global"
"--offline"
"--loglevel" "info"
"--production"
"install" "../package.tgz")
#t))
(define %standard-phases
(modify-phases gnu:%standard-phases
(add-after 'unpack 'set-home set-home)
(add-before 'configure 'patch-dependencies patch-dependencies)
(replace 'configure configure)
(replace 'build build)
(replace 'check check)
(add-before 'install 'repack repack)
(replace 'install install)))
(define* (node-build #:key inputs (phases %standard-phases)
#:allow-other-keys #:rest args)
(apply gnu:gnu-build #:inputs inputs #:phases phases args))
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