Hi - I'm working on a Guix service for Minetest, and I'm running into some
issues. The Guix package for Minetest is divided into two variables: "minetest"
and "minetest-data", with only the former being an installable package. The
Minetest package uses native-search-paths to allow Minetest to find additional
available games (MINETEST_SUBGAME_PATH), *including* minetest_game which is
effectively the default.
This is all well and good when you're installing Minetest as a package and
running it manually, but I'd like to do this with a Guix service instead.
Problem is... the native-search-paths don't seem to affect the environment
variables set when I run Minetest through Shepherd. I'm checking my env vars by
running Minetest through strace in the shepherd service at the moment:
(start #~(make-forkexec-constructor
(list #$(file-append strace "/bin/strace") "-s1024" "-vfe"
"trace=execve" #$(file-append package "/bin/minetest")
"--server" "testworld"
"--map-dir" #$map-dir)
#:user "minetest"
#:group "minetest"))
(I've attached my current services/games.scm for reference.)
Is there a way for me to use the native-search-paths from the installed
Minetest package when starting it through Shepherd?;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Arun Isaac <arunis...@systemreboot.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 (gnu services games)
#:use-module (gnu services)
#:use-module (gnu services shepherd)
#:use-module (gnu packages admin)
#:use-module (gnu packages linux) ;; for strace - remove this
#:use-module (gnu packages games)
#:use-module (gnu system shadow)
#:use-module (guix gexp)
#:use-module (guix modules)
#:use-module (guix records)
#:use-module (ice-9 match)
#:export (wesnothd-configuration
wesnothd-configuration?
wesnothd-service-type
minetest-configuration
minetest-configuration?
minetest-service-type))
;;;
;;; The Battle for Wesnoth server
;;;
(define-record-type* <wesnothd-configuration>
wesnothd-configuration make-wesnothd-configuration wesnothd-configuration?
(package wesnothd-configuration-package
(default wesnoth-server))
(port wesnothd-configuration-port
(default 15000)))
(define %wesnothd-accounts
(list
(user-account
(name "wesnothd")
(group "wesnothd")
(system? #t)
(comment "Wesnoth daemon user")
(home-directory "/var/empty")
(shell
(file-append shadow "/sbin/nologin")))
(user-group
(name "wesnothd")
(system? #t))))
(define wesnothd-shepherd-service
(match-lambda
(($ <wesnothd-configuration> package port)
(with-imported-modules
(source-module-closure
'((gnu build shepherd)))
(shepherd-service
(documentation "The Battle for Wesnoth server")
(provision
'(wesnoth-daemon))
(requirement
'(networking))
(modules
'((gnu build shepherd)))
(start #~(make-forkexec-constructor/container
(list #$(file-append package "/bin/wesnothd")
"-p" #$(number->string port))
#:user "wesnothd" #:group "wesnothd"))
(stop #~(make-kill-destructor)))))))
(define wesnothd-service-type
(service-type
(name 'wesnothd)
(description
"Run The Battle for Wesnoth server @command{wesnothd}.")
(extensions
(list
(service-extension account-service-type
(const %wesnothd-accounts))
(service-extension shepherd-root-service-type
(compose list wesnothd-shepherd-service))))
(default-value
(wesnothd-configuration))))
(define-record-type* <minetest-configuration>
minetest-configuration make-minetest-configuration minetest-configuration?
(package minetest-configuration-package
(default minetest))
(config-file minetest-config-file
(default "/etc/minetest.conf"))
(map-dir minetest-map-dir
(default "/tmp")))
(define %minetest-accounts
(list
(user-account
(name "minetest")
(group "minetest")
(system? #t)
(comment "Minetest daemon user")
(home-directory "/var/minetest")
(shell
(file-append shadow "/sbin/nologin")))
(user-group
(name "minetest")
(system? #t))))
(define minetest-shepherd-service
(match-lambda
(($ <minetest-configuration> package port map-dir)
(shepherd-service
(documentation "Minetest server.")
(requirement '(networking))
(provision '(minetest))
(start #~(make-forkexec-constructor
;;(list #$(file-append package "/bin/minetest")
;; "--server" "testworld"
;; "--map-dir" #$map-dir)
(list #$(file-append strace "/bin/strace") "-s1024" "-vfe" "trace=execve" #$(file-append package "/bin/minetest")
"--server" "testworld"
"--map-dir" #$map-dir)
#:user "minetest"
#:group "minetest"))
;;#:environment-variables
;;'("HOME=/var/minetest")))
(stop #~(make-kill-destructor))))))
(define minetest-service-type
(service-type
(name 'minetest)
(description
"Run the Minetest server @command{minetest}.")
(extensions
(list (service-extension account-service-type
(const %minetest-accounts))
(service-extension profile-service-type
(lambda (config)
(list (minetest-configuration-package
config))))
(service-extension shepherd-root-service-type
(compose list minetest-shepherd-service))))
(default-value (minetest-configuration))))
