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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>
+;;;
+;;; 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 (gn packages elixir)
+ #:use-module ((guix licenses) #:prefix license:)
+ #:use-module (guix build-system gnu)
+ #:use-module (guix download)
+ #:use-module (guix packages)
+ #:use-module (gnu packages)
+ #:use-module (gnu packages base)
+ #:use-module (gnu packages erlang)
+ #:use-module (gnu packages version-control))
+
+(define-public elixir
+ (package
+ (name "elixir")
+ (version "1.5.1")
+ (source (origin
+ (method url-fetch)
+ (uri (string-append "https://github.com/elixir-lang/elixir"
+ "/archive/v" version ".tar.gz"))
+ (file-name (string-append name "-" version ".tar.gz"))
+ (sha256
+ (base32
+ "0shznrblh51s87b8z5a3hbk36d4yhkja312b9y7wxih0333kv44s"))
+ ;; FIXME: 27 tests (out of 4K) had to be disabled as
+ ;; they fail in the build environment. Common failures
+ ;; are:
+ ;; - Mix.Shell.cmd() fails with error 130
+ ;; - The git_repo fixture cannot be found
+ ;; - Communication with spawned processes fails with EPIPE
+ ;; - Failure to copy files
+ ; (patches (search-patches "elixir-disable-failing-tests.patch"))))
+ ;;
+ ))
+ (build-system gnu-build-system)
+ (arguments
+ `(#:test-target "test"
+ #:make-flags (list (string-append "PREFIX="
+ (assoc-ref %outputs "out")))
+ #:phases
+ (modify-phases %standard-phases
+ (add-after 'unpack 'replace-paths
+ (lambda* (#:key inputs #:allow-other-keys)
+ (substitute* '("lib/elixir/lib/system.ex"
+ "lib/mix/lib/mix/scm/git.ex"
+ "lib/mix/test/test_helper.exs")
+ (("(cmd\\(['\"])git" _ prefix)
+ (string-append prefix (which "git"))))
+ (substitute* "bin/elixir"
+ (("ERL_EXEC=\"erl\"")
+ (string-append "ERL_EXEC=" (which "erl"))))
+ #t))
+ (add-after 'unpack 'fix-or-disable-tests
+ (lambda* (#:key inputs #:allow-other-keys)
+ ;; Some tests require access to a home directory.
+ (setenv "HOME" "/tmp")
+
+ ;; FIXME: These tests fail because the "git_repo" fixture does
+ ;; not exist or cannot be found.
+ (for-each delete-file '("lib/mix/test/mix/dep_test.exs"
+ "lib/mix/test/mix/tasks/deps.git_test.exs"
+ "lib/mix/test/mix/tasks/deps_test.exs"
+ "lib/mix/test/mix/tasks/cmd_test.exs"
+ "lib/mix/test/mix/tasks/escript_test.exs"
+ "lib/mix/test/mix/tasks/deps.tree_test.exs"
+ "lib/mix/test/mix/tasks/archive_test.exs"
+ "lib/mix/test/mix/umbrella_test.exs"
+ "lib/mix/test/mix/rebar_test.exs"
+ "lib/mix/test/mix/local/installer_test.exs"
+ "lib/mix/test/mix/shell/quiet_test.exs"
+ "lib/mix/test/mix/shell/io_test.exs"
+ "lib/iex/test/iex/helpers_test.exs"))
+
+ ;; FIXME: Mix.Shell.cmd() always fails with error code 130.
+ (delete-file "lib/mix/test/mix/shell_test.exs")
+ #t))
+ ; (add-before 'build 'break (lambda () (#f)))
+ (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))
+ (delete 'configure))))
+ (propagated-inputs
+ `(("erlang" ,erlang)
+ ("git" ,git)
+ ("glibc-utf8-locales" ,glibc-utf8-locales)
+ ))
+ (home-page "http://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)))