;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 Steve Sprang <scs@stevesprang.com>
;;; Copyright © 2016, 2017 Leo Famulari <leo@famulari.name>
;;; Copyright © 2016, 2017 Pjotr Prins <pjotr.guix@thebird.nl>
;;; Copyright © 2018 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 erlang)
#:use-module ((guix licenses) #:prefix license:)
#:use-module (guix build-system gnu)
#:use-module (guix build-system emacs)
#:use-module (guix download)
#:use-module (guix git-download)
#:use-module (guix packages)
#:use-module (guix utils)
#:use-module (gnu packages)
#:use-module (gnu packages autotools)
#:use-module (gnu packages fontutils)
#:use-module (gnu packages gl)
#:use-module (gnu packages ncurses)
#:use-module (gnu packages perl)
#:use-module (gnu packages tls)
#:use-module (gnu packages wxwidgets))
(define-public erlang
(package
(name "erlang")
(version "21.0.5")
(source (origin
(method git-fetch)
;; The tarball from http://erlang.org/download contains many
;; pre-compiled files, so we use this snapshot of the source
;; repository.
(uri (git-reference
(url "https://github.com/erlang/otp.git")
(commit (string-append "OTP-" version))))
(file-name (git-file-name name version))
(sha256
(base32
"0gv83i5ybj1z3ykbbldjzf7dbfjszp84c0yzrpshj611b9wp0176"))
(patches (search-patches "erlang-man-path.patch"))))
(build-system gnu-build-system)
(native-inputs
`(("perl" ,perl)
("autoconf" ,autoconf)
("automake" ,automake)
;; Erlang's documentation is distributed in a separate tarball.
("erlang-manpages"
,(origin
(method url-fetch)
(uri (string-append "http://erlang.org/download/otp_doc_man_"
(version-major+minor version) ".tar.gz"))
(sha256
(base32
"0cgv23q0215f6lvmhj4w9skx5m29khjs9mb890635s3yp520xgqh"))))))
(inputs
`(("ncurses" ,ncurses)
("openssl" ,openssl)
("wxwidgets" ,wxwidgets)))
(propagated-inputs
`(("fontconfig" ,fontconfig)
("glu" ,glu)
("mesa" ,mesa)))
(arguments
`(#:test-target "release_tests"
#:configure-flags
(list "--disable-saved-compile-time"
"--enable-dynamic-ssl-lib"
"--enable-native-libs"
"--enable-shared-zlib"
"--enable-smp-support"
"--enable-threads"
"--enable-wx"
(string-append "--with-ssl=" (assoc-ref %build-inputs "openssl")))
#:modules ((srfi srfi-19) ; make-time, et cetera.
(guix build utils)
(guix build gnu-build-system))
#:phases
(modify-phases %standard-phases
(delete 'bootstrap)
;; The are several code fragments that embed timestamps into the
;; output. Here, we alter those fragments to use the value of
;; SOURCE_DATE_EPOCH instead.
(add-after 'unpack 'remove-timestamps
(lambda _
(let ((source-date-epoch
(time-utc->date
(make-time time-utc 0 (string->number
(getenv "SOURCE_DATE_EPOCH"))))))
(substitute* "lib/reltool/src/reltool_target.erl"
(("Date = date\\(\\),")
(string-append "Date = "
(date->string source-date-epoch
"'{~Y,~m,~d}',"))))
(substitute* "lib/reltool/src/reltool_target.erl"
(("Time = time\\(\\),")
(string-append "Time = "
(date->string source-date-epoch
"'{~H,~M,~S}',"))))
(substitute* '("lib/reltool/src/reltool_target.erl"
"lib/sasl/src/systools_make.erl")
(("date\\(\\), time\\(\\),")
(date->string source-date-epoch
"{~Y,~m,~d}, {~H,~M,~S},")))
(substitute* "lib/dialyzer/test/small_SUITE_data/src/gs_make.erl"
(("tuple_to_list\\(date\\(\\)\\),tuple_to_list\\(time\\(\\)\\)")
(date->string
source-date-epoch
"tuple_to_list({~Y,~m,~d}), tuple_to_list({~H,~M,~S})")))
(substitute* "lib/snmp/src/compile/snmpc_mib_to_hrl.erl"
(("\\{Y,Mo,D\\} = date\\(\\),")
(date->string source-date-epoch
"{Y,Mo,D} = {~Y,~m,~d},")))
(substitute* "lib/snmp/src/compile/snmpc_mib_to_hrl.erl"
(("\\{H,Mi,S\\} = time\\(\\),")
(date->string source-date-epoch
"{H,Mi,S} = {~H,~M,~S},")))
#t)))
(add-after 'unpack 'patch-/bin/sh
(lambda _
(substitute* "erts/etc/unix/run_erl.c"
(("sh = \"/bin/sh\";")
(string-append "sh = \""
(which "sh")
"\";")))
(substitute* "erts/emulator/sys/unix/sys_drivers.c"
(("SHELL \"/bin/sh\"")
(string-append "SHELL \""
(which "sh")
"\"")))
(substitute* "erts/emulator/sys/unix/erl_child_setup.c"
(("SHELL \"/bin/sh\"")
(string-append "SHELL \""
(which "sh")
"\"")))
(substitute* "lib/kernel/src/os.erl"
(("/bin/sh") (which "sh")))
#t))
(add-after 'patch-source-shebangs 'patch-source-env
(lambda _
(let ((escripts
(append
(find-files "." "\\.escript")
(find-files "lib/stdlib/test/escript_SUITE_data/")
'("erts/lib_src/utils/make_atomics_api"
"erts/preloaded/src/add_abstract_code"
"lib/diameter/bin/diameterc"
"lib/reltool/examples/display_args"
"lib/reltool/examples/mnesia_core_dump_viewer"
"lib/snmp/src/compile/snmpc.src"
"make/verify_runtime_dependencies"
"make/emd2exml.in"))))
(substitute* escripts
(("/usr/bin/env") (which "env")))
#t)))
(add-before 'configure 'set-erl-top
(lambda _
(setenv "ERL_TOP" (getcwd))
#t))
(add-after 'patch-source-env 'autoconf
(lambda _
(invoke "./otp_build" "autoconf")
#t))
(add-after 'install 'patch-erl
;; This only works after install.
(lambda* (#:key outputs #:allow-other-keys)
(let* ((out (assoc-ref outputs "out")))
(substitute* (string-append out "/bin/erl")
(("sed") (which "sed")))
#t)))
(add-after 'install 'install-doc
(lambda* (#:key inputs outputs #:allow-other-keys)
(let* ((out (assoc-ref outputs "out"))
(manpages (assoc-ref inputs "erlang-manpages"))
(share (string-append out "/share/")))
(mkdir-p share)
(mkdir-p (string-append share "/misc/erlang"))
(with-directory-excursion share
(invoke "tar" "xvf" manpages)
(rename-file "COPYRIGHT"
(string-append share "/misc/erlang/COPYRIGHT"))
;; Delete superfluous file.
(delete-file "PR.template"))
#t))))))
(home-page "https://www.erlang.org/")
(synopsis "The Erlang programming language")
(description
"Erlang is a programming language used to build massively
scalable soft real-time systems with requirements on high
availability. Some of its uses are in telecoms, banking, e-commerce,
computer telephony and instant messaging. Erlang's runtime system has
built-in support for concurrency, distribution and fault tolerance.")
;; Erlang is distributed under the Apache License 2.0, but some components
;; have other licenses. See 'system/COPYRIGHT' in the source distribution.
(license (list license:asl2.0 license:bsd-2 license:bsd-3 license:expat
license:lgpl2.0+ license:tcl/tk license:zlib))))
(define-public emacs-erlang
(package
(name "emacs-erlang")
(version (package-version erlang))
(source (package-source erlang))
(build-system emacs-build-system)
(arguments
`(#:phases
(modify-phases %standard-phases
(add-before 'set-emacs-load-path 'change-working-directory
(lambda _ (chdir "lib/tools/emacs") #t)))))
(home-page "https://www.erlang.org/")
(synopsis "Erlang major mode for Emacs")
(description
"This package provides an Emacs major mode for editing Erlang source
files.")
(license license:asl2.0)))