;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 Sou Bunnbu <iyzsong@gmail.com>
;;; Copyright © 2016, 2017, 2018, 2020 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2017 Huang Ying <huang.ying.caritas@gmail.com>
;;;
;;; 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 dict)
  #:use-module (guix gexp)
  #:use-mod</td></tr></table>
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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2020 Efraim Flashner &lt;efraim@flashner.co.il&gt;
;;;
;;; 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 &lt;http://www.gnu.org/licenses/&gt;.

(define-module (gnu services science)
  #:export (&lt;rshiny-configuration&gt;
            rshiny-configuration
            rshiny-configuration?
            rshiny-configuration-package
            rshiny-configuration-binary
            rshiny-shepherd-service
            rshiny-service-type))

(use-modules (gnu)
             (guix records)
             (ice-9 match))
(use-service-modules shepherd)
(use-package-modules cran)

(define-record-type* &lt;rshiny-configuration&gt;
  rshiny-configuration
  make-rshiny-configuration
  rshiny-configuration?
  (package          rshiny-configuration-package    ; file-like
                    (default r-shiny))
  (binary           rshiny-configuration-binary     ; string
                    (default &quot;rshiny&quot;)))

(define rshiny-shepherd-service
  (match-lambda
    (($ &lt;rshiny-configuration&gt; package binary)
     (list
       (shepherd-service
         (documentation (string-append &quot;R-Shiny service for &quot; binary))
         (provision (list (symbol-append &apos;rshiny- (string-&gt;symbol
                                                    (string-take binary 9)))))
         (requirement &apos;(networking))
         (start
           #~(exec-command
               (list
                 #$(string-append &quot;/run/current-system/profile/bin/&quot; binary))
               ;#:log-file #$(string-append &quot;/var/log/&quot; binary &quot;.log&quot;) ; kills shepherd
               #:environment-variables
               (list &quot;R_LIBS_USER=/run/current-system/profile/site-library/&quot;)))
         (stop #~(make-kill-destructor)))))))

(define rshiny-service-type
  (service-type
    (name &apos;rshiny)
    (extensions
      (list
        (service-extension shepherd-root-service-type
                           rshiny-shepherd-service)
        (service-extension profile-service-type
                           ;; We want the package installed so that it
                           ;; pulls in the propagated inputs as well.
                           (lambda (config)
                             (list
                               (rshiny-configuration-package config))))))
    (description
     &quot;Run an R-Shiny webapp as a Guix Service.&quot;)))
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on.")
             (modules '((gnu build shepherd)
                        (gnu system file-systems)))
             (start #~(make-forkexec-constructor/container
                       (list #$dicod "--foreground"
                             (string-append "--config=" #$dicod.conf))
                       #:user "dicod" #:group "dicod"
                       #:mappings (list (file-system-mapping
                                         (source "/var/run/dicod")
                                         (target source)
                                         (writable? #t)))))
             (stop #~(make-kill-destructor)))))))

(define dicod-service-type
  (service-type
   (name 'dict)
   (extensions
    (list (service-extension account-service-type
                             (const %dicod-accounts))
          (service-extension activation-service-type
                             (const %dicod-activation))
          (service-extension shepherd-root-service-type
                             dicod-shepherd-service)))
   (default-value (dicod-configuration))
   (description
    "Run @command{dicod}, the dictionary server of
@uref{https://www.gnu.org/software/dico, GNU Dico}.  @command{dicod}
implements the standard DICT protocol supported by clients such as
@command{dico} and GNOME Dictionary.")))

(define* (dicod-service #:key (config (dicod-configuration)))
  "Return a service that runs the @command{dicod} daemon, an implementation
of DICT server (@pxref{Dicod,,, dico, GNU Dico Manual}).

The optional @var{config} argument specifies the configuration for
@command{dicod}, which should be a @code{<dicod-configuration>} object, by
default it serves the GNU Collaborative International Dictionary of English.

You can add @command{open localhost} to your @file{~/.dico} file to make
@code{localhost} the default server for @command{dico}
client (@pxref{Initialization File,,, dico, GNU Dico Manual})."
  (service dicod-service-type config))