(define-module (gnu services science)
  #:export (<rshiny-configuration>
            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* <rshiny-configuration>
  rshiny-configuration
  make-rshiny-configuration
  rshiny-configuration?
  (package          rshiny-configuration-package    ; package
                    (default r-shiny))
  (binary           rshiny-configuration-binary     ; string
                    (default "rshiny")))

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

(define rshiny-service-type
  (service-type
    (name '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
     "Run an R-Shiny webapp as a Guix Service.")))
href='/guix/log/?id=304c6b395cdf0cd5ca911c428e08dbb06e37a8c5'>root</a>/<a href='/guix/log/gnu?id=304c6b395cdf0cd5ca911c428e08dbb06e37a8c5'>gnu</a>/<a href='/guix/log/gnu/home?id=304c6b395cdf0cd5ca911c428e08dbb06e37a8c5'>home</a>/<a href='/guix/log/gnu/home/services?id=304c6b395cdf0cd5ca911c428e08dbb06e37a8c5'>services</a>/<a href='/guix/log/gnu/home/services/shepherd.scm?id=304c6b395cdf0cd5ca911c428e08dbb06e37a8c5'>shepherd.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/home/services/shepherd.scm?id=304c6b395cdf0cd5ca911c428e08dbb06e37a8c5&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-04-12 23:30:09 +0200'>2022-04-12</span></td><td><a href='/guix/commit/gnu/home/services/shepherd.scm?id=8805c7eab1d375846dd648065979d8d1a062f176'>home: shepherd: Prevent launching the second instance.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://issues.guix.gnu.org/54545&gt;.

* gnu/home/services/shepherd.scm (launch-shepherd-gexp): Launch shepherd
if and only if its socket file does not already exist.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Andrew Tropin</td></tr>
<tr><td><span title='2022-04-07 00:08:56 +0200'>2022-04-07</span></td><td><a href='/guix/commit/gnu/home/services/shepherd.scm?id=22ab90146665ad4e624421f297dd284f00ebe6ce'>home: shepherd: Default to version 0.9.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/home/services/shepherd.scm (&lt;home-shepherd-configuration&gt;)[shepherd]:
Default to SHEPHERD-0.9.
(home-shepherd-configuration-file): Use 'start-in-the-background' when
it is defined.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-03-18 16:03:33 +0100'>2022-03-18</span></td><td><a href='/guix/commit/gnu/home/services/shepherd.scm?id=e607c377bb677ee4de0b0527adcef9d333767c0f'>home: services: Export record type accessors.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/home/services/shepherd.scm: Export &lt;home-shepherd-configuration&gt;
accessors.  Re-export &lt;shepherd-service&gt; accessors.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-10-09 19:24:18 +0300'>2021-10-09</span></td><td><a href='/guix/commit/gnu/home/services/shepherd.scm?id=0e8d2df0f1a4ab25c482e1c427c54e19903e62f3'>Move (gnu home-services) to (gnu home services).</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/home-services.scm (%guix-home-root-directory): Replace
gnu/home-services.scm with "gnu/home/services.scm".
Rename to gnu/home/services.scm.
* gnu/local.mk
(GNU_SYSTEM_MODULES): Rename gnu/home-services.scm to gnu/home/services.scm.
* doc/he-config-bare-bones.scm:
Replace (gnu home-services) with (gnu home services).
* gnu/home.scm: Same.
* gnu/home/services/fontutils.scm: Same.
* gnu/home/services/mcron.scm: Same.
* gnu/home/services/shells.scm: Same.
* gnu/home/services/shepherd.scm: Same.
* gnu/home/services/symlink-manager.scm: Same.
* gnu/home/services/xdg.scm: Same.
* guix/scripts/home.scm: Same.
* guix/self.scm: Same.
</span></span></td><td>Oleg Pykhalov</td></tr>
<tr><td><span title='2021-10-08 15:36:18 +0300'>2021-10-08</span></td><td><a href='/guix/commit/gnu/home/services/shepherd.scm?id=ba8ddb348045f81f061a1c7f51c0f7c2b0024e71'>gnu: Move (gnu home-services) to (gnu home services).</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/home-services/configuration.scm: Move the content ...
* gnu/home/services/configuration.scm: ... here.
* doc/guix.texi:
Replace (gnu home-services mcron) with (gnu home services mcron).
Replace (gnu home-services) with (gnu home services).
* gnu/home.scm:
Replace (gnu home-services fontutils) with (gnu services fontutils).
Replace (gnu home-services shells) with (gnu home services shells).
Replace (gnu home-services symlink-manager) with
(gnu home services symlink-manager).
Replace (gnu home-services xdg) with (gnu home services xdg).
* gnu/home-services/fontutils.scm: Rename to gnu/services/fontutils.scm.
* gnu/home-services/mcron.scm: Move to gnu/home/services/mcron.scm.
Replace (gnu home-services shepherd) with (gnu home services shepherd).
* gnu/home-services.scm (%service-type-path):
Search home services in "gnu/services".
* gnu/home-services/shells.scm: Replace (gnu home-services configuration) with
(gnu home services configuration).
Rename to gnu/home/services/shells.scm.
Replace (gnu home-services utils) with (gnu home services utils).
* gnu/home-services/shepherd.scm: Move to gnu/home/services/shepherd.scm.
* gnu/home-services/symlink-manager.scm:
Rename to gnu/home/services/symlink-manager.scm.
* gnu/home-services/utils.scm: Rename to gnu/home/services/utils.scm.
* gnu/home-services/xdg.scm: Rename to gnu/home/services/xdg.scm.
* guix/scripts/home/import.scm:
Replace (gnu home-services bash) with (gnu home services bash).
* gnu/home-services.scm: Update documentation string.
* doc/he-config-bare-bones.scm:
Apply new (gnu home-services ...) modules location.
* gnu/local.mk (GNU_SYSTEM_MODULES): Same.
</span></span></td><td>Oleg Pykhalov</td></tr>