From 4245ddcbc9f935804c17c97872b90ec1050c2d75 Mon Sep 17 00:00:00 2001 From: Carlo Zancanaro Date: Sun, 26 Aug 2018 21:54:14 +1000 Subject: guix system: Load all services on reconfigure, not just stopped ones. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This uses the 'replacement' service slot introduced in the Shepherd version 0.5.0. * gnu/services/shepherd.scm (shepherd-service-upgrade): Return a list of services that need to be restarted to complete their upgrade. * guix/scripts/system.scm (call-with-service-upgrade-info): Rename an internal variable to reflect the change to shepherd-service-upgrade. (upgrade-shepherd-services): Call 'load-services/safe' instead of 'load-services'. Print a message about services that need to be manually restarted. * gnu/services/herd.scm (load-services/safe): New procedure. * doc/guix.texi (Invoking guix system): Document the new behaviour. Co-authored-by: Ludovic Courtès --- gnu/services/shepherd.scm | 23 ++++++++--------------- 1 file changed, 8 insertions(+), 15 deletions(-) (limited to 'gnu/services/shepherd.scm') diff --git a/gnu/services/shepherd.scm b/gnu/services/shepherd.scm index 4cd2249841..4c7e72049f 100644 --- a/gnu/services/shepherd.scm +++ b/gnu/services/shepherd.scm @@ -1,6 +1,7 @@ ;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2013, 2014, 2015, 2016, 2018 Ludovic Courtès ;;; Copyright © 2017 Clément Lassieur +;;; Copyright © 2018 Carlo Zancanaro ;;; ;;; This file is part of GNU Guix. ;;; @@ -329,7 +330,7 @@ symbols provided/required by a service." (define (shepherd-service-upgrade live target) "Return two values: the subset of LIVE (a list of ) that needs to be unloaded, and the subset of TARGET (a list of ) that -needs to be loaded." +need to be restarted to complete their upgrade." (define (essential? service) (memq (first (live-service-provision service)) '(root shepherd))) @@ -346,12 +347,6 @@ needs to be loaded." (and=> (lookup-live (shepherd-service-canonical-name service)) live-service-running)) - (define (stopped service) - (match (lookup-live (shepherd-service-canonical-name service)) - (#f #f) - (service (and (not (live-service-running service)) - service)))) - (define live-service-dependents (shepherd-service-back-edges live #:provision live-service-provision @@ -362,16 +357,14 @@ needs to be loaded." (#f (every obsolete? (live-service-dependents service))) (_ #f))) - (define to-load - ;; Only load services that are either new or currently stopped. - (remove running? target)) + (define to-restart + ;; Restart services that are currently running. + (filter running? target)) (define to-unload - ;; Unload services that are (1) no longer required, or (2) are in TO-LOAD. - (remove essential? - (append (filter obsolete? live) - (filter-map stopped to-load)))) + ;; Unload services that are no longer required. + (remove essential? (filter obsolete? live))) - (values to-unload to-load)) + (values to-unload to-restart)) ;;; shepherd.scm ends here -- cgit v1.2.3