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guix/gnu/services/avahi.scm

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;;; GNU Guix --- Functional package management for GNU
monads: Move '%store-monad' and related procedures where they belong. This turns (guix monads) into a generic module for monads, and moves the store monad and related monadic procedures in their corresponding module. * guix/monads.scm (store-return, store-bind, %store-monad, store-lift, text-file, interned-file, package-file, package->derivation, package->cross-derivation, origin->derivation, imported-modules, compiled, modules, built-derivations, run-with-store): Move to... * guix/store.scm (store-return, store-bind, %store-monad, store-lift, text-file, interned-file): ... here. (%guile-for-build): New variable. (run-with-store): Moved from monads.scm. Remove default value for #:guile-for-build. * guix/packages.scm (default-guile): Export. (set-guile-for-build): New procedure. (package-file, package->derivation, package->cross-derivation, origin->derivation): Moved from monads.scm. * guix/derivations.scm (%guile-for-build): Remove. (imported-modules): Rename to... (%imported-modules): ... this. (compiled-modules): Rename to... (%compiled-modules): ... this. (built-derivations, imported-modules, compiled-modules): New procedures. * gnu/services/avahi.scm, gnu/services/base.scm, gnu/services/dbus.scm, gnu/services/dmd.scm, gnu/services/networking.scm, gnu/services/ssh.scm, gnu/services/xorg.scm, gnu/system/install.scm, gnu/system/linux-initrd.scm, gnu/system/shadow.scm, guix/download.scm, guix/gexp.scm, guix/git-download.scm, guix/profiles.scm, guix/svn-download.scm, tests/monads.scm: Adjust imports accordingly. * guix/monad-repl.scm (default-guile-derivation): New procedure. (store-monad-language, run-in-store): Use it. * build-aux/hydra/gnu-system.scm (qemu-jobs): Add explicit 'set-guile-for-build' call. * guix/scripts/archive.scm (derivation-from-expression): Likewise. * guix/scripts/build.scm (options/resolve-packages): Likewise. * guix/scripts/environment.scm (guix-environment): Likewise. * guix/scripts/system.scm (guix-system): Likewise. * doc/guix.texi (The Store Monad): Adjust module names accordingly.
2015-01-14 12:34:52 +00:00
;;; Copyright © 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 avahi)
#:use-module (gnu services)
#:use-module (gnu system shadow)
#:use-module (gnu packages avahi)
#:use-module (gnu packages admin)
#:use-module (guix monads)
monads: Move '%store-monad' and related procedures where they belong. This turns (guix monads) into a generic module for monads, and moves the store monad and related monadic procedures in their corresponding module. * guix/monads.scm (store-return, store-bind, %store-monad, store-lift, text-file, interned-file, package-file, package->derivation, package->cross-derivation, origin->derivation, imported-modules, compiled, modules, built-derivations, run-with-store): Move to... * guix/store.scm (store-return, store-bind, %store-monad, store-lift, text-file, interned-file): ... here. (%guile-for-build): New variable. (run-with-store): Moved from monads.scm. Remove default value for #:guile-for-build. * guix/packages.scm (default-guile): Export. (set-guile-for-build): New procedure. (package-file, package->derivation, package->cross-derivation, origin->derivation): Moved from monads.scm. * guix/derivations.scm (%guile-for-build): Remove. (imported-modules): Rename to... (%imported-modules): ... this. (compiled-modules): Rename to... (%compiled-modules): ... this. (built-derivations, imported-modules, compiled-modules): New procedures. * gnu/services/avahi.scm, gnu/services/base.scm, gnu/services/dbus.scm, gnu/services/dmd.scm, gnu/services/networking.scm, gnu/services/ssh.scm, gnu/services/xorg.scm, gnu/system/install.scm, gnu/system/linux-initrd.scm, gnu/system/shadow.scm, guix/download.scm, guix/gexp.scm, guix/git-download.scm, guix/profiles.scm, guix/svn-download.scm, tests/monads.scm: Adjust imports accordingly. * guix/monad-repl.scm (default-guile-derivation): New procedure. (store-monad-language, run-in-store): Use it. * build-aux/hydra/gnu-system.scm (qemu-jobs): Add explicit 'set-guile-for-build' call. * guix/scripts/archive.scm (derivation-from-expression): Likewise. * guix/scripts/build.scm (options/resolve-packages): Likewise. * guix/scripts/environment.scm (guix-environment): Likewise. * guix/scripts/system.scm (guix-system): Likewise. * doc/guix.texi (The Store Monad): Adjust module names accordingly.
2015-01-14 12:34:52 +00:00
#:use-module (guix store)
#:use-module (guix gexp)
#:export (avahi-service))
;;; Commentary:
;;;
;;; This module provides service definitions for the Avahi
;;; "zero-configuration" tool set.
;;;
;;; Code:
(define* (configuration-file #:key host-name publish?
ipv4? ipv6? wide-area? domains-to-browse)
"Return an avahi-daemon configuration file."
(define (bool value)
(if value "yes\n" "no\n"))
(text-file "avahi-daemon.conf"
(string-append
"[server]\n"
(if host-name
(string-append "host-name=" host-name "\n")
"")
"browse-domains=" (string-join domains-to-browse)
"\n"
"use-ipv4=" (bool ipv4?)
"use-ipv6=" (bool ipv6?)
"[wide-area]\n"
"enable-wide-area=" (bool wide-area?)
"[publish]\n"
"disable-publishing=" (bool (not publish?)))))
(define* (avahi-service #:key (avahi avahi)
host-name
(publish? #t)
(ipv4? #t) (ipv6? #t)
wide-area?
(domains-to-browse '()))
"Return a service that runs @command{avahi-daemon}, a system-wide
mDNS/DNS-SD responder that allows for service discovery and
\"zero-configuration\" host name lookups (see @uref{http://avahi.org/}).
If @var{host-name} is different from @code{#f}, use that as the host name to
publish for this machine; otherwise, use the machine's actual host name.
When @var{publish?} is true, publishing of host names and services is allowed;
in particular, avahi-daemon will publish the machine's host name and IP
address via mDNS on the local network.
When @var{wide-area?} is true, DNS-SD over unicast DNS is enabled.
Boolean values @var{ipv4?} and @var{ipv6?} determine whether to use IPv4/IPv6
sockets."
(mlet %store-monad ((config (configuration-file #:host-name host-name
#:publish? publish?
#:ipv4? ipv4?
#:ipv6? ipv6?
#:wide-area? wide-area?
#:domains-to-browse
domains-to-browse)))
(return
(service
(documentation "Run the Avahi mDNS/DNS-SD responder.")
(provision '(avahi-daemon))
(requirement '(dbus-system networking))
(start #~(make-forkexec-constructor
(list (string-append #$avahi "/sbin/avahi-daemon")
"--syslog" "-f" #$config)))
(stop #~(make-kill-destructor))
(activate #~(begin
(use-modules (guix build utils))
(mkdir-p "/var/run/avahi-daemon")))
(user-groups (list (user-group
(name "avahi")
(system? #t))))
(user-accounts (list (user-account
(name "avahi")
(group "avahi")
(system? #t)
(comment "Avahi daemon user")
(home-directory "/var/empty")
(shell
#~(string-append #$shadow "/sbin/nologin")))))))))
;;; avahi.scm ends here