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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 Leo Famulari <leo@famulari.name>
;;; Copyright © 2016, 2017 Pjotr Prins <pjotr.guix@thebird.nl>
;;; Copyright © 2016 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2017 nee <nee.git@cock.li>
;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2018 ng0 <ng0@n0.is>
;;;
;;; 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 (gnu packages elixir)
#:use-module ((guix licenses) #:prefix license:)
#:use-module (guix build-system gnu)
#:use-module (guix git-download)
#:use-module (guix packages)
#:use-module (gnu packages)
#:use-module (gnu packages erlang)
#:use-module (gnu packages version-control))
(define-public elixir
(package
(name "elixir")
(version "1.9.2")
(source
(origin
(method git-fetch)
(uri (git-reference
(url "https://github.com/elixir-lang/elixir.git")
(commit (string-append "v" version))))
(file-name (git-file-name name version))
(sha256
(base32 "19yn6nx6r627f5zbyc7ckgr96d6b45sgwx95n2gp2imqwqvpj8wc"))
(patches (search-patches "elixir-path-length.patch"))))
(build-system gnu-build-system)
(arguments
`(#:test-target "test"
#:parallel-tests? #f ;see <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=32171#23>
#:make-flags (list (string-append "PREFIX="
(assoc-ref %outputs "out")))
#:phases
(modify-phases %standard-phases
(add-after 'unpack 'make-git-checkout-writable
(lambda _
(for-each make-file-writable (find-files "."))
#t))
(add-after 'make-git-checkout-writable 'replace-paths
(lambda* (#:key inputs outputs #:allow-other-keys)
(let ((out (assoc-ref outputs "out")))
(substitute* '("lib/elixir/lib/system.ex"
"lib/mix/lib/mix/scm/git.ex")
(("(cmd\\(['\"])git" _ prefix)
(string-append prefix (which "git"))))
(substitute* '("lib/mix/lib/mix/release.ex"
"lib/mix/lib/mix/tasks/release.init.ex")
(("#!/bin/sh")
(string-append "#!" (which "sh"))))
(substitute* "bin/elixir"
(("ERTS_BIN=")
(string-append
"ERTS_BIN="
;; Elixir Releases will prepend to ERTS_BIN the path of a copy of erl.
;; We detect if a release is being generated by checking the initial ERTS_BIN
;; value: if it's empty, we are not in release mode and can point to the actual
;; erl binary in Guix store.
"\nif [ -z \"$ERTS_BIN\" ]; then ERTS_BIN="
(string-drop-right (which "erl") 3)
"; fi")))
(substitute* "bin/mix"
(("#!/usr/bin/env elixir")
(string-append "#!" out "/bin/elixir"))))
#t))
(add-before 'build 'make-current
;; The Elixir compiler checks whether or not to compile files by
;; inspecting their timestamps. When the timestamp is equal to the
;; epoch no compilation will be performed. Some tests fail when
;; files are older than Jan 1, 2000.
(lambda _
(for-each (lambda (file)
(let ((recent 1400000000))
(utime file recent recent 0 0)))
(find-files "." ".*"))
#t))
(add-before 'check 'set-home
(lambda* (#:key inputs #:allow-other-keys)
;; Some tests require access to a home directory.
(setenv "HOME" "/tmp")
#t))
(delete 'configure))))
(inputs
`(("erlang" ,erlang)
("git" ,git)))
(home-page "https://elixir-lang.org/")
(synopsis "Elixir programming language")
(description "Elixir is a dynamic, functional language used to build
scalable and maintainable applications. Elixir leverages the Erlang VM, known
for running low-latency, distributed and fault-tolerant systems, while also
being successfully used in web development and the embedded software domain.")
(license license:asl2.0)))
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