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author | Ludovic Courtès <ludo@gnu.org> | 2014-04-28 23:07:08 +0200 |
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committer | Ludovic Courtès <ludo@gnu.org> | 2014-04-28 23:24:18 +0200 |
commit | b5f4e686359d8842b329e6b161ef89fa6c04ebc3 (patch) | |
tree | c1a07dde7693ed45d9776095fb116d475bb6637a /doc | |
parent | 1aa0033b646b59e62d6a05716a21c631fca55c77 (diff) | |
download | guix-b5f4e686359d8842b329e6b161ef89fa6c04ebc3.tar.gz guix-b5f4e686359d8842b329e6b161ef89fa6c04ebc3.tar.xz |
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 'doc')
-rw-r--r-- | doc/guix.texi | 31 |
1 files changed, 14 insertions, 17 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 9fb226c651..bbfdce51fa 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -3224,29 +3224,26 @@ like: @lisp (define (nscd-service) - (mlet %store-monad ((nscd (package-file glibc "sbin/nscd"))) + (with-monad %store-monad (return (service (documentation "Run libc's name service cache daemon.") (provision '(nscd)) - (start `(make-forkexec-constructor ,nscd "-f" "/dev/null" - "--foreground")) - (stop `(make-kill-destructor)) - - (respawn? #f) - (inputs `(("glibc" ,glibc))))))) + (start #~(make-forkexec-constructor + (string-append #$glibc "/sbin/nscd") + "-f" "/dev/null" "--foreground")) + (stop #~(make-kill-destructor)) + (respawn? #f))))) @end lisp @noindent -The @code{inputs} field specifies that this service depends on the -@var{glibc} package---the package that contains the @command{nscd} -program. The @code{start} and @code{stop} fields are expressions that -make use of dmd's facilities to start and stop processes (@pxref{Service -De- and Constructors,,, dmd, GNU dmd Manual}). The @code{provision} -field specifies the name under which this service is known to dmd, and -@code{documentation} specifies on-line documentation. Thus, the -commands @command{deco start ncsd}, @command{deco stop nscd}, and -@command{deco doc nscd} will do what you would expect (@pxref{Invoking -deco,,, dmd, GNU dmd Manual}). +The @code{start} and @code{stop} fields are G-expressions +(@pxref{G-Expressions}). They refer to dmd's facilities to start and +stop processes (@pxref{Service De- and Constructors,,, dmd, GNU dmd +Manual}). The @code{provision} field specifies the name under which +this service is known to dmd, and @code{documentation} specifies on-line +documentation. Thus, the commands @command{deco start ncsd}, +@command{deco stop nscd}, and @command{deco doc nscd} will do what you +would expect (@pxref{Invoking deco,,, dmd, GNU dmd Manual}). @c ********************************************************************* |