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(define-module (gn services rshiny)
#: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))
;; This one works:
(start
#~(lambda _
(setenv "R_LIBS_USER" "/run/current-system/profile/site-library/")
(invoke #$(string-append "/run/current-system/profile/bin/" binary))))
;; Let's try in a container:
;(start #~(make-forkexec-constructor/container
; (list #$(file-append package "/bin/" binary))
; #: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
; (string-append "Run " (rshiny-configuration-package config) ", an R-Shiny
;webapp, as a Guix Service.")
"Run an R-Shiny webapp as a Guix Service.")))
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