Re: [PATCH] gnu: Add erlang.

[Pjotr Prins]

I have used this package to build Elixir, a language on top of the
Erlang VM. That is a complicated 'test' and so far it runs
beautifully. I'll add a package for Elixir soon.

Thanks!

Pj.

On Mon, Mar 21, 2016 at 11:40:46AM -0400, Leo Famulari wrote:
> On Wed, Mar 16, 2016 at 10:00:21PM -0700, Steve Sprang wrote:
> > I don't have anything else packaged. I've only dabbled with Erlang myself.
> > You can start a REPL with:
> > 
> > % erl
> 
> Okay, I was able to build this on x86_64 and cross-build to i686. Would
> anyone like the test the build on armhf or mips64el?
> 
> I was able to run a "Hello world" program [0]:
> 
> ---
> $ ./pre-inst-env guix environment --pure --ad-hoc erlang -- erl -noshell 
> -eval 'io:fwrite("Hello, world!\n"), init:stop().'
> Hello, world!
> ---
> 
> The configure script was not finding OpenSSL, so I've modified the
> package locally to provide the path.
> 
> I did something similar for `rm`. Also, I had to provide the path to
> `sed` in 'erl/bin', which is just a small shell script.
> 
> I've attached my changes. What do you think?
> 
> The Nix package [1] might show the way for future improvements to this
> package.
> 
> For example, the documentation (man pages) is distributed separately, so
> I've attached a patch that adds them in their own package. But, they are
> only 6 megabytes (erlang itself is 100 megabytes), so they should
> probably be folded into the the erlang package.
> 
> [0]
> http://erlangcentral.org/wiki/index.php/Hello_World
> 
> [1]
> https://github.com/NixOS/nixpkgs/blob/master/pkgs/development/interpreters/erlang/R18.nix
> 
> > 
> > -Steve
> > On Mar 16, 2016 9:21 PM, "Leo Famulari" <address@hidden> wrote:
> > 
> > > On Wed, Mar 16, 2016 at 05:18:57PM -0700, Steve Sprang wrote:
> > > > Oops, I didn't follow up on this. I made the suggested changes to the
> > > > patch. I also bumped the version to 18.3, which has subsequently
> > > > become available.
> > >
> > > This is awesome!
> > >
> > > Do you have any erlang programs packaged that we can try it out with? Or
> > > is there some "hello world" thing I can try for this package?
> > >

> From cafc65901667dab9a3773f637eba65a43346da1a Mon Sep 17 00:00:00 2001
> Message-Id: <address@hidden>
> From: Steve Sprang <address@hidden>
> Date: Sat, 6 Feb 2016 12:40:53 -0800
> Subject: [PATCH 1/2] gnu: Add erlang.
> 
> * gnu/packages/erlang.scm: New file.
> * gnu-system.am (GNU_SYSTEM_MODULES): Add it.
> 
> Signed-off-by: Leo Famulari <address@hidden>
> ---
>  gnu-system.am           |   1 +
>  gnu/packages/erlang.scm | 127 
> ++++++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 128 insertions(+)
>  create mode 100644 gnu/packages/erlang.scm
> 
> diff --git a/gnu-system.am b/gnu-system.am
> index f13a55d..4cc44df 100644
> --- a/gnu-system.am
> +++ b/gnu-system.am
> @@ -102,6 +102,7 @@ GNU_SYSTEM_MODULES =                              \
>    gnu/packages/enchant.scm                   \
>    gnu/packages/engineering.scm                       \
>    gnu/packages/enlightenment.scm             \
> +  gnu/packages/erlang.scm                    \
>    gnu/packages/fcitx.scm                     \
>    gnu/packages/feh.scm                          \
>    gnu/packages/figlet.scm                    \
> diff --git a/gnu/packages/erlang.scm b/gnu/packages/erlang.scm
> new file mode 100644
> index 0000000..4f9d6e4
> --- /dev/null
> +++ b/gnu/packages/erlang.scm
> @@ -0,0 +1,127 @@
> +;;; GNU Guix --- Functional package management for GNU
> +;;; Copyright © 2016 Steve Sprang <address@hidden>
> +;;;
> +;;; 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 packages)
> +  #:use-module (guix download)
> +  #:use-module (guix build-system gnu)
> +  #:use-module (gnu packages ncurses)
> +  #:use-module (gnu packages perl)
> +  #:use-module (gnu packages tls))
> +
> +(define-public erlang
> +  (package
> +    (name "erlang")
> +    (version "18.3")
> +    (source (origin
> +              (method url-fetch)
> +              (uri (string-append
> +                    "http://erlang.org/download/otp_src_";
> +                    version
> +                    ".tar.gz"))
> +              (sha256
> +               (base32
> +                "1hy9slq9gjvwdb504dmvp6rax90isnky6chqkyq5v4ybl4lq3azx"))))
> +    (build-system gnu-build-system)
> +    (native-inputs
> +     `(("perl" ,perl)))
> +    (inputs
> +     `(("ncurses" ,ncurses)
> +       ("openssl" ,openssl)))
> +    (arguments
> +     `(#:configure-flags
> +       (list (string-append "--with-ssl=" (assoc-ref %build-inputs 
> "openssl")))
> +       #:phases
> +       (modify-phases %standard-phases
> +      (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"))))))
> +         (add-after 'unpack 'path-to-rm
> +           (lambda _
> +             (substitute* "erts/configure"
> +               (("/bin/rm") (which "rm")))
> +             (substitute* "lib/odbc/configure"
> +               (("/bin/rm") (which "rm")))))
> +         (add-before 'configure 'set-erl-top
> +           (lambda _
> +             (setenv "ERL_TOP" (getcwd))))
> +         (add-after 'install 'patch-erl
> +           ;; This only works after install.
> +           (lambda _
> +             (substitute* (string-append (assoc-ref %outputs "out") 
> "/bin/erl")
> +               (("sed") (which "sed"))))))
> +       #:test-target "release_tests"))
> +    (home-page "http://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.")
> +    (license license:asl2.0)))
> +
> +(define-public erlang-manpages
> +  ;; Keep in sync with 'erlang'!
> +  (package
> +    (name "erlang-manpages")
> +    (version (package-version erlang))
> +    (source (origin
> +              (method url-fetch)
> +              (uri (string-append "http://erlang.org/download/otp_doc_man_";
> +                                  version ".tar.gz"))
> +              (sha256
> +               (base32
> +                "1hpcr7a3dx2y9gnb53bvb4g6lyvbwigadl9s3f978s01x40f32wp"))))
> +    (build-system trivial-build-system)
> +    (arguments
> +     '(#:modules ((guix build utils))
> +       #:builder
> +       (begin
> +         (use-modules (guix build utils))
> +         (let* ((gz  (assoc-ref %build-inputs "gzip"))
> +                (tar (assoc-ref %build-inputs "tar"))
> +                (out (assoc-ref %outputs "out"))
> +                (man (string-append out "/share/man")))
> +           (setenv "PATH" (string-append tar "/bin:" gz "/bin"))
> +           (mkdir-p man)
> +           (with-directory-excursion man
> +             (zero? (system* "tar" "xvf"
> +                             (assoc-ref %build-inputs "source"))))
> +           (delete-file (string-append man "/PR.template"))
> +           (delete-file (string-append man "/README"))))))
> +    (native-inputs `(("tar" ,tar)
> +                     ("gzip" ,gzip)))
> +    (synopsis "Man pages of Erlang")
> +    (description "This provides the man pages of Erlang.")
> +    (home-page (package-home-page erlang))
> +    (license license:asl2.0)))
> -- 
> 2.7.3
> 

> From 5fb31a0190755b728f76775de7cea9cac54bde36 Mon Sep 17 00:00:00 2001
> Message-Id: <address@hidden>
> In-Reply-To: <address@hidden>
> References: <address@hidden>
> From: Leo Famulari <address@hidden>
> Date: Mon, 21 Mar 2016 01:25:57 -0400
> Subject: [PATCH 2/2] gnu: Add erlang-manpages.
> 
> * gnu/packages/erlang.scm (erlang-manpages): New variable.
> ---
>  gnu/packages/erlang.scm | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/gnu/packages/erlang.scm b/gnu/packages/erlang.scm
> index 4f9d6e4..e90a7b7 100644
> --- a/gnu/packages/erlang.scm
> +++ b/gnu/packages/erlang.scm
> @@ -1,5 +1,6 @@
>  ;;; GNU Guix --- Functional package management for GNU
>  ;;; Copyright © 2016 Steve Sprang <address@hidden>
> +;;; Copyright © 2016 Leo Famulari <address@hidden>
>  ;;;
>  ;;; This file is part of GNU Guix.
>  ;;;
> @@ -21,11 +22,15 @@
>    #:use-module (guix packages)
>    #:use-module (guix download)
>    #:use-module (guix build-system gnu)
> +  #:use-module (guix build-system trivial)
> +  #:use-module (gnu packages base)
> +  #:use-module (gnu packages compression)
>    #:use-module (gnu packages ncurses)
>    #:use-module (gnu packages perl)
>    #:use-module (gnu packages tls))
>  
>  (define-public erlang
> +  ;; Keep in sync with 'erlang-manpages'!
>    (package
>      (name "erlang")
>      (version "18.3")
> -- 
> 2.7.3
> 


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