mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-11-16 11:55:27 -05:00
116244df95
Reported by 白い熊 @相撲道 <guix-devel_gnu.org@sumou.com> at <http://lists.gnu.org/archive/html/guix-devel/2015-03/msg00264.html>. * gnu/services/dmd.scm (assert-no-duplicates): New procedure. (dmd-configuration-file): Use it. * po/guix/POTFILES.in: Add gnu/services/dmd.scm. * tests/guix-system.sh (errorfile): Add test.
105 lines
3.8 KiB
Scheme
105 lines
3.8 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
|
;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
|
|
;;;
|
|
;;; 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 dmd)
|
|
#:use-module (guix ui)
|
|
#:use-module (guix sets)
|
|
#:use-module (guix gexp)
|
|
#:use-module (guix store)
|
|
#:use-module (guix monads)
|
|
#:use-module (guix derivations) ;imported-modules, etc.
|
|
#:use-module (gnu services)
|
|
#:use-module (ice-9 match)
|
|
#:use-module (srfi srfi-1)
|
|
#:use-module (srfi srfi-34)
|
|
#:use-module (srfi srfi-35)
|
|
#:export (dmd-configuration-file))
|
|
|
|
;;; Commentary:
|
|
;;;
|
|
;;; Instantiating system services as a dmd configuration file.
|
|
;;;
|
|
;;; Code:
|
|
|
|
(define (assert-no-duplicates services)
|
|
"Raise an error if SERVICES provide the same dmd service more than once.
|
|
|
|
This is a constraint that dmd's 'register-service' verifies but we'd better
|
|
verify it here statically than wait until PID 1 halts with an assertion
|
|
failure."
|
|
(fold (lambda (service set)
|
|
(define (assert-unique symbol)
|
|
(when (set-contains? set symbol)
|
|
(raise (condition
|
|
(&message
|
|
(message
|
|
(format #f (_ "service '~a' provided more than once")
|
|
symbol)))))))
|
|
|
|
(for-each assert-unique (service-provision service))
|
|
(fold set-insert set (service-provision service)))
|
|
(setq)
|
|
services))
|
|
|
|
(define (dmd-configuration-file services)
|
|
"Return the dmd configuration file for SERVICES."
|
|
(define modules
|
|
;; Extra modules visible to dmd.conf.
|
|
'((guix build syscalls)
|
|
(gnu build file-systems)
|
|
(guix build utils)))
|
|
|
|
(assert-no-duplicates services)
|
|
|
|
(mlet %store-monad ((modules (imported-modules modules))
|
|
(compiled (compiled-modules modules)))
|
|
(define config
|
|
#~(begin
|
|
(eval-when (expand load eval)
|
|
(set! %load-path (cons #$modules %load-path))
|
|
(set! %load-compiled-path
|
|
(cons #$compiled %load-compiled-path)))
|
|
|
|
(use-modules (ice-9 ftw)
|
|
(guix build syscalls)
|
|
(guix build utils)
|
|
((gnu build file-systems)
|
|
#:select (check-file-system canonicalize-device-spec)))
|
|
|
|
(register-services
|
|
#$@(map (lambda (service)
|
|
#~(make <service>
|
|
#:docstring '#$(service-documentation service)
|
|
#:provides '#$(service-provision service)
|
|
#:requires '#$(service-requirement service)
|
|
#:respawn? '#$(service-respawn? service)
|
|
#:start #$(service-start service)
|
|
#:stop #$(service-stop service)))
|
|
services))
|
|
|
|
;; guix-daemon 0.6 aborts if 'PATH' is undefined, so work around it.
|
|
(setenv "PATH" "/run/current-system/profile/bin")
|
|
|
|
(format #t "starting services...~%")
|
|
(for-each start
|
|
'#$(append-map service-provision
|
|
(filter service-auto-start? services)))))
|
|
|
|
(gexp->file "dmd.conf" config)))
|
|
|
|
;;; dmd.scm ends here
|