aboutsummaryrefslogtreecommitdiff
path: root/gnu/services
diff options
context:
space:
mode:
authorLudovic Courtès <ludo@gnu.org>2014-04-28 23:07:08 +0200
committerLudovic Courtès <ludo@gnu.org>2014-04-28 23:24:18 +0200
commitb5f4e686359d8842b329e6b161ef89fa6c04ebc3 (patch)
treec1a07dde7693ed45d9776095fb116d475bb6637a /gnu/services
parent1aa0033b646b59e62d6a05716a21c631fca55c77 (diff)
downloadguix-b5f4e686359d8842b329e6b161ef89fa6c04ebc3.tar
guix-b5f4e686359d8842b329e6b161ef89fa6c04ebc3.tar.gz
services: Rewrite using gexps.
* gnu/services.scm (<service>)[inputs]: Remove. * gnu/system.scm (links): Remove. (etc-directory): Add PASSWD and SHADOW to #:inputs. (operating-system-boot-script): Pass ETC to 'dmd-configuration-file'. (operating-system-derivation): Remove EXTRAS from the union. * gnu/system/linux.scm (pam-service->configuration): Rewrite in terms of 'gexp->derivation'. Compute the contents on the build side. Expect 'arguments' to contain a list of gexps. (pam-services->directory): Rewrite in terms of 'gexp->derivation'. (unix-pam-service): Change 'arguments' to a list of one gexp. * gnu/system/shadow.scm (<user-account>)[inputs]: Remove. [shell]: Change default value to a gexp. (passwd-file): Rewrite in terms of 'gexp->derivation'. Compute contents on the build side. * gnu/services/base.scm (host-name-service, mingetty-service, nscd-service, syslog-service, guix-service): Change 'start' and 'stop' to gexps; remove 'inputs' field. (guix-build-accounts): Change 'shell' field to a gexp. * gnu/services/networking.scm (static-networking-service): Change 'start' and 'stop' to gexps; remove 'inputs' field. * gnu/services/xorg.scm (slim-service): Likewise. * gnu/services/dmd.scm (dmd-configuration-file): Expect ETC to be a derivation. Change 'config' to a gexp. Use 'gexp->file' instead of 'text-file'. * doc/guix.texi (Defining Services): Update nscd example with gexps, and without 'inputs'. Add xref to "G-Expressions".
Diffstat (limited to 'gnu/services')
-rw-r--r--gnu/services/base.scm60
-rw-r--r--gnu/services/dmd.scm77
-rw-r--r--gnu/services/networking.scm58
-rw-r--r--gnu/services/xorg.scm19
4 files changed, 106 insertions, 108 deletions
diff --git a/gnu/services/base.scm b/gnu/services/base.scm
index 3145a657f8..9561995243 100644
--- a/gnu/services/base.scm
+++ b/gnu/services/base.scm
@@ -24,6 +24,7 @@
#:use-module ((gnu packages base)
#:select (glibc-final))
#:use-module (gnu packages package-management)
+ #:use-module (guix gexp)
#:use-module (guix monads)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
@@ -48,8 +49,8 @@
(return (service
(documentation "Initialize the machine's host name.")
(provision '(host-name))
- (start `(lambda _
- (sethostname ,name)))
+ (start #~(lambda _
+ (sethostname #$name)))
(respawn? #f)))))
(define* (mingetty-service tty
@@ -57,8 +58,7 @@
(motd (text-file "motd" "Welcome.\n"))
(allow-empty-passwords? #t))
"Return a service to run mingetty on TTY."
- (mlet %store-monad ((mingetty-bin (package-file mingetty "sbin/mingetty"))
- (motd motd))
+ (mlet %store-monad ((motd motd))
(return
(service
(documentation (string-append "Run mingetty on " tty "."))
@@ -68,10 +68,10 @@
;; service to be done.
(requirement '(host-name))
- (start `(make-forkexec-constructor ,mingetty-bin "--noclear" ,tty))
- (stop `(make-kill-destructor))
- (inputs `(("mingetty" ,mingetty)
- ("motd" ,motd)))
+ (start #~(make-forkexec-constructor
+ (string-append #$mingetty "/sbin/mingetty")
+ "--noclear" #$tty))
+ (stop #~(make-kill-destructor))
(pam-services
;; Let 'login' be known to PAM. All the mingetty services will have
@@ -83,16 +83,17 @@
(define* (nscd-service #:key (glibc glibc-final))
"Return a service that runs libc's name service cache daemon (nscd)."
- (mlet %store-monad ((nscd (package-file glibc "sbin/nscd")))
+ (with-monad %store-monad
(return (service
(documentation "Run libc's name service cache daemon (nscd).")
(provision '(nscd))
- (start `(make-forkexec-constructor ,nscd "-f" "/dev/null"
- "--foreground"))
- (stop `(make-kill-destructor))
+ (start
+ #~(make-forkexec-constructor (string-append #$glibc "/sbin/nscd")
+ "-f" "/dev/null"
+ "--foreground"))
+ (stop #~(make-kill-destructor))
- (respawn? #f)
- (inputs `(("glibc" ,glibc)))))))
+ (respawn? #f)))))
(define (syslog-service)
"Return a service that runs 'syslogd' with reasonable default settings."
@@ -120,17 +121,17 @@
")
(mlet %store-monad
- ((syslog.conf (text-file "syslog.conf" contents))
- (syslogd (package-file inetutils "libexec/syslogd")))
+ ((syslog.conf (text-file "syslog.conf" contents)))
(return
(service
(documentation "Run the syslog daemon (syslogd).")
(provision '(syslogd))
- (start `(make-forkexec-constructor ,syslogd "--no-detach"
- "--rcfile" ,syslog.conf))
- (stop `(make-kill-destructor))
- (inputs `(("inetutils" ,inetutils)
- ("syslog.conf" ,syslog.conf)))))))
+ (start
+ #~(make-forkexec-constructor (string-append #$inetutils
+ "/libexec/syslogd")
+ "--no-detach"
+ "--rcfile" #$syslog.conf))
+ (stop #~(make-kill-destructor))))))
(define* (guix-build-accounts count #:key
(first-uid 30001)
@@ -148,8 +149,7 @@ starting at FIRST-UID, and under GID."
(gid gid)
(comment (format #f "Guix Build User ~2d" n))
(home-directory "/var/empty")
- (shell (package-file shadow "sbin/nologin"))
- (inputs `(("shadow" ,shadow)))))
+ (shell #~(string-append #$shadow "/sbin/nologin"))))
1+
1))))
@@ -157,16 +157,16 @@ starting at FIRST-UID, and under GID."
(build-user-gid 30000) (build-accounts 10))
"Return a service that runs the build daemon from GUIX, and has
BUILD-ACCOUNTS user accounts available under BUILD-USER-GID."
- (mlet %store-monad ((daemon (package-file guix "bin/guix-daemon"))
- (accounts (guix-build-accounts build-accounts
+ (mlet %store-monad ((accounts (guix-build-accounts build-accounts
#:gid build-user-gid)))
(return (service
(provision '(guix-daemon))
- (start `(make-forkexec-constructor ,daemon
- "--build-users-group"
- ,builder-group))
- (stop `(make-kill-destructor))
- (inputs `(("guix" ,guix)))
+ (start
+ #~(make-forkexec-constructor (string-append #$guix
+ "/bin/guix-daemon")
+ "--build-users-group"
+ #$builder-group))
+ (stop #~(make-kill-destructor))
(user-accounts accounts)
(user-groups (list (user-group
(name builder-group)
diff --git a/gnu/services/dmd.scm b/gnu/services/dmd.scm
index 54fb5cbfd6..c187c09857 100644
--- a/gnu/services/dmd.scm
+++ b/gnu/services/dmd.scm
@@ -17,6 +17,7 @@
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu services dmd)
+ #:use-module (guix gexp)
#:use-module (guix monads)
#:use-module (gnu services)
#:use-module (ice-9 match)
@@ -31,50 +32,50 @@
(define (dmd-configuration-file services etc)
"Return the dmd configuration file for SERVICES, that initializes /etc from
-ETC (the name of a directory in the store) on startup."
+ETC (the derivation that builds the /etc directory) on startup."
(define config
- `(begin
- (use-modules (ice-9 ftw))
+ #~(begin
+ (use-modules (ice-9 ftw))
- (register-services
- ,@(map (lambda (service)
- `(make <service>
- #:docstring ',(service-documentation service)
- #:provides ',(service-provision service)
- #:requires ',(service-requirement service)
- #:respawn? ',(service-respawn? service)
- #:start ,(service-start service)
- #:stop ,(service-stop service)))
- services))
+ (register-services
+ #$@(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))
- ;; /etc is a mixture of static and dynamic settings. Here is where we
- ;; initialize it from the static part.
- (format #t "populating /etc from ~a...~%" ,etc)
- (let ((rm-f (lambda (f)
- (false-if-exception (delete-file f)))))
- (rm-f "/etc/static")
- (symlink ,etc "/etc/static")
- (for-each (lambda (file)
- ;; TODO: Handle 'shadow' specially so that changed
- ;; password aren't lost.
- (let ((target (string-append "/etc/" file))
- (source (string-append "/etc/static/" file)))
- (rm-f target)
- (symlink source target)))
- (scandir ,etc
- (lambda (file)
- (not (member file '("." ".."))))))
+ ;; /etc is a mixture of static and dynamic settings. Here is where we
+ ;; initialize it from the static part.
+ (format #t "populating /etc from ~a...~%" #$etc)
+ (let ((rm-f (lambda (f)
+ (false-if-exception (delete-file f)))))
+ (rm-f "/etc/static")
+ (symlink #$etc "/etc/static")
+ (for-each (lambda (file)
+ ;; TODO: Handle 'shadow' specially so that changed
+ ;; password aren't lost.
+ (let ((target (string-append "/etc/" file))
+ (source (string-append "/etc/static/" file)))
+ (rm-f target)
+ (symlink source target)))
+ (scandir #$etc
+ (lambda (file)
+ (not (member file '("." ".."))))))
- ;; Prevent ETC from being GC'd.
- (rm-f "/var/guix/gcroots/etc-directory")
- (symlink ,etc "/var/guix/gcroots/etc-directory"))
+ ;; Prevent ETC from being GC'd.
+ (rm-f "/var/guix/gcroots/etc-directory")
+ (symlink #$etc "/var/guix/gcroots/etc-directory"))
- ;; guix-daemon 0.6 aborts if 'PATH' is undefined, so work around it.
- (setenv "PATH" "/run/current-system/bin")
+ ;; guix-daemon 0.6 aborts if 'PATH' is undefined, so work around it.
+ (setenv "PATH" "/run/current-system/bin")
- (format #t "starting services...~%")
- (for-each start ',(append-map service-provision services))))
+ (format #t "starting services...~%")
+ (for-each start '#$(append-map service-provision services))))
- (text-file "dmd.conf" (object->string config)))
+ (gexp->file "dmd.conf" config))
;;; dmd.scm ends here
diff --git a/gnu/services/networking.scm b/gnu/services/networking.scm
index 317800db50..5522541735 100644
--- a/gnu/services/networking.scm
+++ b/gnu/services/networking.scm
@@ -20,6 +20,7 @@
#:use-module (gnu services)
#:use-module (gnu packages admin)
#:use-module (gnu packages linux)
+ #:use-module (guix gexp)
#:use-module (guix monads)
#:export (static-networking-service))
@@ -41,40 +42,41 @@ true, it must be a string specifying the default network gateway."
;; TODO: Eventually we should do this using Guile's networking procedures,
;; like 'configure-qemu-networking' does, but the patch that does this is
;; not yet in stock Guile.
- (mlet %store-monad ((ifconfig (package-file inetutils "bin/ifconfig"))
- (route (package-file net-tools "sbin/route")))
+ (with-monad %store-monad
(return
(service
(documentation
(string-append "Set up networking on the '" interface
"' interface using a static IP address."))
(provision '(networking))
- (start `(lambda _
- ;; Return #t if successfully started.
- (and (zero? (system* ,ifconfig ,interface ,ip "up"))
- ,(if gateway
- `(zero? (system* ,route "add" "-net" "default"
- "gw" ,gateway))
- #t)
- ,(if (pair? name-servers)
- `(call-with-output-file "/etc/resolv.conf"
- (lambda (port)
- (display
- "# Generated by 'static-networking-service'.\n"
- port)
- (for-each (lambda (server)
- (format port "nameserver ~a~%"
- server))
- ',name-servers)))
- #t))))
- (stop `(lambda _
+ (start #~(lambda _
+ ;; Return #t if successfully started.
+ (and (zero? (system* (string-append #$inetutils
+ "/bin/ifconfig")
+ #$interface #$ip "up"))
+ #$(if gateway
+ #~(zero? (system* (string-append #$net-tools
+ "/sbin/route")
+ "add" "-net" "default"
+ "gw" #$gateway))
+ #t)
+ #$(if (pair? name-servers)
+ #~(call-with-output-file "/etc/resolv.conf"
+ (lambda (port)
+ (display
+ "# Generated by 'static-networking-service'.\n"
+ port)
+ (for-each (lambda (server)
+ (format port "nameserver ~a~%"
+ server))
+ '#$name-servers)))
+ #t))))
+ (stop #~(lambda _
;; Return #f is successfully stopped.
- (not (and (system* ,ifconfig ,interface "down")
- (system* ,route "del" "-net" "default")))))
- (respawn? #f)
- (inputs `(("inetutils" ,inetutils)
- ,@(if gateway
- `(("net-tools" ,net-tools))
- '())))))))
+ (not (and (system* (string-append #$inetutils "/sbin/ifconfig")
+ #$interface "down")
+ (system* (string-append #$net-tools "/sbin/route")
+ "del" "-net" "default")))))
+ (respawn? #f)))))
;;; networking.scm ends here
diff --git a/gnu/services/xorg.scm b/gnu/services/xorg.scm
index 086150a658..81b5bc17a5 100644
--- a/gnu/services/xorg.scm
+++ b/gnu/services/xorg.scm
@@ -27,6 +27,7 @@
#:use-module (gnu packages gnustep)
#:use-module (gnu packages admin)
#:use-module (gnu packages bash)
+ #:use-module (guix gexp)
#:use-module (guix monads)
#:use-module (guix derivations)
#:export (xorg-start-command
@@ -190,9 +191,7 @@ reboot_cmd " dmd "/sbin/reboot
(string-append "auto_login yes\ndefault_user " default-user)
""))))
- (mlet %store-monad ((slim-bin (package-file slim "bin/slim"))
- (bash-bin (package-file bash "bin/bash"))
- (slim.cfg (slim.cfg)))
+ (mlet %store-monad ((slim.cfg (slim.cfg)))
(return
(service
(documentation "Xorg display server")
@@ -200,15 +199,11 @@ reboot_cmd " dmd "/sbin/reboot
(requirement '(host-name))
(start
;; XXX: Work around the inability to specify env. vars. directly.
- `(make-forkexec-constructor
- ,bash-bin "-c"
- ,(string-append "SLIM_CFGFILE=" (derivation->output-path slim.cfg)
- " " slim-bin
- " -nodaemon")))
- (stop `(make-kill-destructor))
- (inputs `(("slim" ,slim)
- ("slim.cfg" ,slim.cfg)
- ("bash" ,bash)))
+ #~(make-forkexec-constructor
+ (string-append #$bash "/bin/sh") "-c"
+ (string-append "SLIM_CFGFILE=" #$slim.cfg
+ " " #$slim "/bin/slim" " -nodaemon")))
+ (stop #~(make-kill-destructor))
(respawn? #t)
(pam-services
;; Tell PAM about 'slim'.