From d466b1fc8221a6224fe7ded53a828f9c29ed9457 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= Date: Sun, 21 Jan 2018 00:05:09 +0100 Subject: services: Missing services are automatically instantiated. This simplifies OS configuration: users no longer need to be aware of what a given service depends on. See the discussion at . * gnu/services.scm (missing-target-error): New procedure. (service-back-edges): Use it. (instantiate-missing-services): New procedure. * gnu/system.scm (operating-system-services): Call 'instantiate-missing-services'. * tests/services.scm ("instantiate-missing-services") ("instantiate-missing-services, no default value"): New tests. * gnu/services/version-control.scm (cgit-service-type)[extensions]: Add FCGIWRAP-SERVICE-TYPE. * gnu/tests/version-control.scm (%cgit-os): Remove NGINX-SERVICE-TYPE and FCGIWRAP-SERVICE-TYPE instances. * doc/guix.texi (Log Rotation): Remove 'mcron-service-type' in example. (Miscellaneous Services): Remove 'nginx-service-type' and 'fcgiwrap-service-type' in Cgit example. --- tests/services.scm | 32 +++++++++++++++++++++++++++++++- 1 file changed, 31 insertions(+), 1 deletion(-) (limited to 'tests/services.scm') diff --git a/tests/services.scm b/tests/services.scm index ca32b565c4..b146a0dec2 100644 --- a/tests/services.scm +++ b/tests/services.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2015, 2016, 2017 Ludovic Courtès +;;; Copyright © 2015, 2016, 2017, 2018 Ludovic Courtès ;;; ;;; This file is part of GNU Guix. ;;; @@ -122,6 +122,36 @@ (fold-services (list s) #:target-type t1) #f))) +(test-assert "instantiate-missing-services" + (let* ((t1 (service-type (name 't1) (extensions '()) + (default-value 'dflt) + (compose concatenate) + (extend cons))) + (t2 (service-type (name 't2) + (extensions + (list (service-extension t1 list))))) + (s1 (service t1 'hey!)) + (s2 (service t2 42))) + (and (lset= equal? + (list (service t1) s2) + (instantiate-missing-services (list s2))) + (equal? (list s1 s2) + (instantiate-missing-services (list s1 s2)))))) + +(test-assert "instantiate-missing-services, no default value" + (let* ((t1 (service-type (name 't1) (extensions '()))) + (t2 (service-type (name 't2) + (extensions + (list (service-extension t1 list))))) + (s (service t2 42))) + (guard (c ((missing-target-service-error? c) + (and (eq? (missing-target-service-error-target-type c) + t1) + (eq? (missing-target-service-error-service c) + s)))) + (instantiate-missing-services (list s)) + #f))) + (test-assert "shepherd-service-lookup-procedure" (let* ((s1 (shepherd-service (provision '(s1 s1b)) (start #f))) (s2 (shepherd-service (provision '(s2 s2b)) (start #f))) -- cgit v1.2.3