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+(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.")))