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;;; 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.")))
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