From 27727b18b8597f7c6fd99adc7797c555aa1c92e9 Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Fri, 1 Nov 2019 23:48:40 +0100 Subject: services: dbus: Remove non-existent directories from 'system-local.conf'. This typically halves the number of entries in /etc/dbus-1/system-local.conf. * gnu/services/dbus.scm (dbus-configuration-directory)[build](directives): New macro. (services->sxml): Use it. --- gnu/services/dbus.scm | 26 ++++++++++++++++++++------ 1 file changed, 20 insertions(+), 6 deletions(-) (limited to 'gnu/services') diff --git a/gnu/services/dbus.scm b/gnu/services/dbus.scm index fcdeb3bf60..a697a8820e 100644 --- a/gnu/services/dbus.scm +++ b/gnu/services/dbus.scm @@ -86,6 +86,19 @@ includes the @code{etc/dbus-1/system.d} directories of each package listed in (use-modules (sxml simple) (srfi srfi-1)) + (define-syntax directives + (syntax-rules () + ;; Expand the given directives (SXML expressions) only if their + ;; key names a file that exists. + ((_ (name directory) rest ...) + (let ((dir directory)) + (if (file-exists? dir) + `((name ,dir) + ,@(directives rest ...)) + (directives rest ...)))) + ((_) + '()))) + (define (services->sxml services) ;; Return the SXML 'includedir' clauses for DIRS. `(busconfig @@ -98,12 +111,13 @@ includes the @code{etc/dbus-1/system.d} directories of each package listed in (servicedir "/etc/dbus-1/system-services") ,@(append-map (lambda (dir) - `((includedir - ,(string-append dir "/etc/dbus-1/system.d")) - (includedir - ,(string-append dir "/share/dbus-1/system.d")) - (servicedir ;for '.service' files - ,(string-append dir "/share/dbus-1/services")))) + (directives + (includedir + (string-append dir "/etc/dbus-1/system.d")) + (includedir + (string-append dir "/share/dbus-1/system.d")) + (servicedir ;for '.service' files + (string-append dir "/share/dbus-1/services")))) services))) (mkdir #$output) -- cgit 1.4.1