;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il>
;;;
;;; 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 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    ; file-like
                    (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.")))
12b38fd31022'>Remove now unnecessary uses of (guix grafts).</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-05-25 09:28:43 +0200'>2022-05-25</span></td><td><a href='/guix/commit/tests/gexp.scm?id=d276a7dd6162d101b7790cc8ea902abfec1eafcb'>tests: Fix wrong target triplets.</a><span class='msg-avail'>...</span></td><td>Josselin Poiret</td></tr>
<tr><td><span title='2022-05-01 21:30:34 +0200'>2022-05-01</span></td><td><a href='/guix/commit/tests/gexp.scm?id=774f8804bafbf42a65eca492d1395da57deeb467'>gexp: Add 'references-file'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
21-05-05</span></td><td><a href='/guix/commit/tests/go.scm?id=2354d79b88e80b34593dfdeb307ae602e21dcc8a'>tests: go: Remove duplicate go-version-&gt;git-ref test.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2021-05-04 22:48:27 +0200'>2021-05-04</span></td><td><a href='/guix/commit/tests/go.scm?id=9f0bdfd18668f177a899d489ac39d87f3963f88f'>tests: go: Fix typos in test descriptions.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-04-09 22:41:32 -0400'>2021-04-09</span></td><td><a href='/guix/commit/tests/go.scm?id=a8b927a562aad7e5f77d0e4db2d9cee3434446d2'>import: go: Add an option to use pinned versions.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2021-04-09 22:41:31 -0400'>2021-04-09</span></td><td><a href='/guix/commit/tests/go.scm?id=6aee902eaf9e38d5f41f568ef787fa0cc5203318'>import: go: Improve synopsis and description parsing.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2021-03-10 18:01:48 +0100'>2021-03-10</span></td><td><a href='/guix/commit/tests/go.scm?id=d028aef31c9dd05c0390addc3d7f419e41c530ab'>import: go: Compute the hash of Git checkouts.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-03-10 18:01:48 +0100'>2021-03-10</span></td><td><a href='/guix/commit/tests/go.scm?id=02e2e093e858e8a0ca7bd66c1f1f6fd0a1705edb'>import: Add Go importer.</a><span class='msg-avail'>...</span></td><td>Katherine Cox-Buday</td></tr>