diff options
| -rw-r--r-- | guix/scripts/system.scm | 7 | ||||
| -rw-r--r-- | tests/system.scm | 32 |
2 files changed, 38 insertions, 1 deletions
diff --git a/guix/scripts/system.scm b/guix/scripts/system.scm index 80f62fb109..bcf19dbb7e 100644 --- a/guix/scripts/system.scm +++ b/guix/scripts/system.scm @@ -298,9 +298,14 @@ needs to be loaded." (service (and (not (live-service-running service)) service)))) + (define live-service-dependents + (shepherd-service-back-edges live + #:provision live-service-provision + #:requirement live-service-requirement)) + (define (obsolete? service) (match (lookup-target (first (live-service-provision service))) - (#f #t) + (#f (every obsolete? (live-service-dependents service))) (_ #f))) (define to-load diff --git a/tests/system.scm b/tests/system.scm index eff997062f..9c1a13dd9b 100644 --- a/tests/system.scm +++ b/tests/system.scm @@ -149,4 +149,36 @@ (list (map live-service-provision unload) (map shepherd-service-provision load))))) +(test-equal "service-upgrade: service depended on is not unloaded" + '(((baz)) ;unload + ()) ;load + (call-with-values + (lambda () + ;; Service 'bar' is not among the target services; yet, it must not be + ;; unloaded because 'foo' depends on it. + (service-upgrade (list (live-service '(foo) '(bar) #t) + (live-service '(bar) '() #t) ;still used! + (live-service '(baz) '() #t)) + (list (shepherd-service (provision '(foo)) + (start #t))))) + (lambda (unload load) + (list (map live-service-provision unload) + (map shepherd-service-provision load))))) + +(test-equal "service-upgrade: obsolete services that depend on each other" + '(((foo) (bar) (baz)) ;unload + ((qux))) ;load + (call-with-values + (lambda () + ;; 'foo', 'bar', and 'baz' depend on each other, but all of them are + ;; obsolete, and thus should be unloaded. + (service-upgrade (list (live-service '(foo) '(bar) #t) ;obsolete + (live-service '(bar) '(baz) #t) ;obsolete + (live-service '(baz) '() #t)) ;obsolete + (list (shepherd-service (provision '(qux)) + (start #t))))) + (lambda (unload load) + (list (map live-service-provision unload) + (map shepherd-service-provision load))))) + (test-end) |