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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2023 Pierre-Henry Fröhring <contact@phfrohring.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/>.
;; Commentary:
;;
;; Standard build procedure for Elixir packages using 'mix'. This is
;; implemented as an extension of 'gnu-build-system'.
;;
;; Code:
(define-module (guix build-system mix)
#:use-module (guix build mix-build-system)
#:use-module (guix build-system gnu)
#:use-module (guix build-system)
#:use-module (guix gexp)
#:use-module (guix monads)
#:use-module (guix packages)
#:use-module (guix search-paths)
#:use-module (guix store)
#:use-module (guix utils)
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:export (mix-build-system hexpm-uri))
;; Lazily resolve bindings to avoid circular dependencies.
(define (default-glibc-utf8-locales)
(let* ((base (resolve-interface '(gnu packages base))))
(module-ref base 'glibc-utf8-locales)))
(define (default-elixir-hex)
(let ((elixir (resolve-interface '(gnu packages elixir))))
(module-ref elixir 'elixir-hex)))
(define (default-rebar3)
(let ((erlang (resolve-interface '(gnu packages erlang))))
(module-ref erlang 'rebar3)))
(define (default-elixir)
(let ((elixir (resolve-interface '(gnu packages elixir))))
(module-ref elixir 'elixir)))
(define* (strip-prefix name #:optional (prefix "elixir-"))
"Return NAME without the prefix PREFIX."
(if (string-prefix? prefix name)
(string-drop name (string-length prefix))
name))
(define (hexpm-uri name version)
"Return the URI where to fetch the sources of a Hex package NAME at VERSION.
NAME is the name of the package which should look like: elixir-pkg-name-X.Y.Z
See: https://github.com/hexpm/specifications/blob/main/endpoints.md"
((compose
(cute string-append "https://repo.hex.pm/tarballs/" <> "-" version ".tar")
(cute string-replace-substring <> "-" "_")
strip-prefix)
name))
;; A number of environment variables specific to the Mix build system are
;; reflected here. They are documented at
;; https://hexdocs.pm/mix/1.15.7/Mix.html#module-environment-variables. Other
;; parameters located in mix.exs are defined at
;; https://hexdocs.pm/mix/1.15.7/Mix.Project.html#module-configuration
(define* (mix-build name
inputs
#:key
source
(tests? #t)
(mix-path #f) ;See MIX_PATH.
(mix-exs "mix.exs") ;See MIX_EXS.
(build-per-environment #t) ;See :build_per_environment.
(phases '%standard-phases)
(outputs '("out"))
(search-paths '())
(system (%current-system))
(guile #f)
(imported-modules `((guix build mix-build-system)
,@%gnu-build-system-modules))
(modules '((guix build mix-build-system)
(guix build utils))))
"Build SOURCE using Elixir, and with INPUTS."
;; Check the documentation of :build_per_environment here:
;; https://hexdocs.pm/mix/1.15.7/Mix.Project.html#module-configuration And
;; "Environments" here:
;; https://hexdocs.pm/mix/1.15.7/Mix.html#module-environments
(define mix-environments
(if build-per-environment
`("prod" ,@(if tests? '("test") '()))
'("shared")))
(define builder
(with-imported-modules imported-modules
#~(begin
(use-modules #$@(sexp->gexp modules))
#$(with-build-variables inputs outputs
#~(mix-build #:name #$name
#:source #+source
#:system #$system
#:tests? #$tests?
#:mix-path #$mix-path
#:mix-exs #$mix-exs
#:mix-environments '#$mix-environments
#:build-per-environment #$build-per-environment
#:phases #$(if (pair? phases)
(sexp->gexp phases)
phases)
#:outputs %outputs
#:search-paths '#$(sexp->gexp
(map
search-path-specification->sexp
search-paths))
#:inputs
%build-inputs)))))
(mlet %store-monad ((guile (package->derivation (or guile (default-guile))
system
#:graft? #f)))
(gexp->derivation name
builder
#:system system
#:graft? #f ;consistent with 'gnu-build'
#:target #f
#:guile-for-build guile)))
(define* (lower name
#:key
(elixir (default-elixir))
(elixir-hex (default-elixir-hex))
(glibc-utf8-locales (default-glibc-utf8-locales))
(inputs '())
(native-inputs '())
(propagated-inputs '())
(rebar3 (default-rebar3))
(tests? #t)
outputs
source
system
target
#:allow-other-keys #:rest arguments)
"Return a bag for NAME."
(let ((private-keywords
'(#:inputs #:native-inputs
#:outputs #:system #:target
#:elixir #:elixir-hex #:glibc-utf8-locales
#:rebar3 #:erlang))
(build-inputs
`(,@(standard-packages)
("glibc-utf8-locales" ,glibc-utf8-locales)
("erlang" ,(lookup-package-input elixir "erlang"))
("rebar3" ,rebar3)
("elixir" ,elixir)
("elixir-hex" ,elixir-hex)
,@inputs
,@native-inputs)))
(bag (name name)
(system system)
(build-inputs build-inputs)
(host-inputs (if target inputs '()))
(outputs outputs)
(build mix-build)
(arguments (strip-keyword-arguments private-keywords arguments)))))
(define mix-build-system
(build-system (name 'mix)
(description "The standard Mix build system")
(lower lower)))
;;; mix.scm ends here
|
