Guix Service Type

Minimalny przykład zastosowania

(gnu:services:service-type
  (name          ')
  (extensions    (list))
  (compose       #f)
  (extend        #f)
  (default-value #f)
  (description   "")
  (location)     #f)

Typ zbioru pól Guix dla typu zbioru pól typu usługi

(define-record-type* <service-type> service-type make-service-type
  service-type?
  (name       service-type-name)                  ;symbol (for debugging)

  ;; Things extended by services of this type.
  (extensions service-type-extensions)            ;list of <service-extensions>

  ;; Given a list of extensions, "compose" them.
  (compose    service-type-compose                ;list of Any -> Any
              (default #f))

  ;; Extend the services' own parameters with the extension composition.
  (extend     service-type-extend                 ;list of Any -> parameters
              (default #f))

  ;; Optional default value for instances of this type.
  (default-value service-type-default-value       ;Any
                 (default &no-default-value))

  ;; Meta-data.
  (description  service-type-description)         ;string
  (location     service-type-location             ;<location>
                (default (and=> (current-source-location)
                                source-properties->location))