services: dicod: Allow the configuration of "handlers".

* gnu/services/dict.scm (<dicod-configuration>)[handlers]: New field.
(<dicod-handler>): New record type.
(<dicod-database>): Add fields.
(dicod-configuration-file): Support convert handlers and enhanced databases.
configuration to config file.
* doc/guix.texi (Miscellaneous Services): Update accordingly.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This commit is contained in:
Huang Ying 2017-03-30 19:13:34 +08:00 committed by Ludovic Courtès
parent bacc1d26c6
commit 9af7ecd959
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2 changed files with 92 additions and 14 deletions

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@ -14370,11 +14370,31 @@ This is the list of IP addresses and ports and possibly socket file
names to listen to (@pxref{Server Settings, @code{listen} directive,,
dico, GNU Dico Manual}).
@item @code{handlers} (default: @var{'()})
List of @code{<dicod-handler>} objects denoting handlers (module instances).
@item @code{databases} (default: @var{(list %dicod-database:gcide)})
List of @code{<dicod-database>} objects denoting dictionaries to be served.
@end table
@end deftp
@deftp {Data Type} dicod-handler
Data type representing a dictionary handler (module instance).
@table @asis
@item @code{name}
Name of the handler (module instance).
@item @code{module} (default: @var{#f})
Name of the dicod module of the handler (instance). If it is @code{#f},
the module has the same name as the handler.
(@pxref{Modules,,, dico, GNU Dico Manual}).
@item @code{options}
List of strings or gexps representing the arguments for the module handler
@end table
@end deftp
@deftp {Data Type} dicod-database
Data type representing a dictionary database.
@ -14382,13 +14402,17 @@ Data type representing a dictionary database.
@item @code{name}
Name of the database, will be used in DICT commands.
@item @code{module}
Name of the dicod module used by this database
(@pxref{Modules,,, dico, GNU Dico Manual}).
@item @code{handler}
Name of the dicod handler (module instance) used by this database
(@pxref{Handlers,,, dico, GNU Dico Manual}).
@item @code{complex?} (default: @var{#f})
Whether the database configuration complex. The complex configuration
will need a corresponding @code{<dicod-handler>} object, otherwise not.
@item @code{options}
List of strings or gexps representing the arguments for the module handler
(@pxref{Handlers,,, dico, GNU Dico Manual}).
List of strings or gexps representing the arguments for the database
(@pxref{Databases,,, dico, GNU Dico Manual}).
@end table
@end deftp
@ -14397,6 +14421,24 @@ A @code{<dicod-database>} object serving the GNU Collaborative International
Dictonary of English using the @code{gcide} package.
@end defvr
The following is an example @code{dicod-service} configuration.
@example
(dicod-service #:config
(dicod-configuration
(handlers (list (dicod-handler
(name "wordnet")
(module "dictorg")
(options
(list #~(string-append "dbdir=" #$wordnet))))))
(databases (list (dicod-database
(name "wordnet")
(complex? #t)
(handler "wordnet")
(options '("database=wn")))
%dicod-database:gcide))))
@end example
@subsubsection Version Control
The @code{(gnu services version-control)} module provides the following services:

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@ -1,6 +1,7 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 Sou Bunnbu <iyzsong@gmail.com>
;;; Copyright © 2016 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2016, 2017 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2017 Huang Ying <huang.ying.caritas@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
@ -32,6 +33,7 @@ (define-module (gnu services dict)
#:export (dicod-service
dicod-service-type
dicod-configuration
dicod-handler
dicod-database
%dicod-database:gcide))
@ -46,21 +48,30 @@ (define-record-type* <dicod-configuration>
(dico dicod-configuration-dico (default dico))
(interfaces dicod-configuration-interfaces ;list of strings
(default '("localhost")))
(databases dicod-configuration-databases
;; list of <dicod-database>
(handlers dicod-configuration-handlers ;list of <dicod-handler>
(default '()))
(databases dicod-configuration-databases ;list of <dicod-database>
(default (list %dicod-database:gcide))))
(define-record-type* <dicod-handler>
dicod-handler make-dicod-handler
dicod-handler?
(name dicod-handler-name)
(module dicod-handler-module (default #f))
(options dicod-handler-options (default '())))
(define-record-type* <dicod-database>
dicod-database make-dicod-database
dicod-database?
(name dicod-database-name)
(module dicod-database-module)
(handler dicod-database-handler)
(complex? dicod-database-complex? (default #f))
(options dicod-database-options (default '())))
(define %dicod-database:gcide
(dicod-database
(name "gcide")
(module "gcide")
(handler "gcide")
(options (list #~(string-append "dbdir=" #$gcide "/share/gcide")
"idxdir=/var/run/dicod"))))
@ -76,22 +87,47 @@ (define %dicod-accounts
(shell (file-append shadow "/sbin/nologin")))))
(define (dicod-configuration-file config)
(define handler->text
(match-lambda
(($ <dicod-handler> name #f '())
`("
load-module " ,name ";"))
(($ <dicod-handler> name #f options)
(handler->text (dicod-handler
(name name)
(module name)
(options options))))
(($ <dicod-handler> name module options)
`("
load-module " ,name " {
command \"" ,module (string-join (list ,@options) " " 'prefix) "\";
}\n"))))
(define database->text
(match-lambda
(($ <dicod-database> name module options)
(($ <dicod-database> name handler #f options)
(append
(handler->text (dicod-handler
(name handler)))
(database->text (dicod-database
(name name)
(handler handler)
(complex? #t)
(options options)))))
(($ <dicod-database> name handler complex? options)
`("
load-module " ,module ";
database {
name \"" ,name "\";
handler \"" ,module
handler \"" ,handler
(string-join (list ,@options) " " 'prefix) "\";
}\n"))))
(define configuration->text
(match-lambda
(($ <dicod-configuration> dico (interfaces ...) databases)
(($ <dicod-configuration> dico (interfaces ...) handlers databases)
(append `("listen ("
,(string-join interfaces ", ") ");\n")
(append-map handler->text handlers)
(append-map database->text databases)))))
(apply mixed-text-file "dicod.conf" (configuration->text config)))