[oe-commits] [openembedded-core] 04/13: systemd: create preset files instead of installing in image

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rpurdie pushed a commit to branch master-next
in repository openembedded-core.

commit c6b6b6b93f5868431b4ab88c068f6107f7680f4b
Author: Jonas Bonn <jonas at norrbonn.se>
AuthorDate: Mon Jan 28 21:58:46 2019 +0100

    systemd: create preset files instead of installing in image
    
    At first boot, systemd will create the /etc/systemd/system directory
    from service preset files.  As such, for a normal, writable /etc
    (writable rootfs), there is no need to set up this directory at image
    creation time.
    
    This patch changes the systemd machinery to create preset files and to
    rely on systemd to do the service enablement.
    
    This breaks the read-only-rootfs case; there's a fix for this in a
    follow-up patch.
    
    Signed-off-by: Jonas Bonn <jonas at norrbonn.se>
    Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 meta/classes/systemd.bbclass | 33 ++++++++++++++++-----------------
 1 file changed, 16 insertions(+), 17 deletions(-)

diff --git a/meta/classes/systemd.bbclass b/meta/classes/systemd.bbclass
index c8f4fde..403d210 100644
--- a/meta/classes/systemd.bbclass
+++ b/meta/classes/systemd.bbclass
@@ -16,43 +16,32 @@ python __anonymous() {
     # from doing any work so that pure-systemd images don't have redundant init
     # files.
     if bb.utils.contains('DISTRO_FEATURES', 'systemd', True, False, d):
-        d.appendVar("DEPENDS", " systemd-systemctl-native")
-        d.appendVar("PACKAGE_WRITE_DEPS", " systemd-systemctl-native")
         if not bb.utils.contains('DISTRO_FEATURES', 'sysvinit', True, False, d):
             d.setVar("INHIBIT_UPDATERCD_BBCLASS", "1")
 }
 
 systemd_postinst() {
-OPTS=""
-
 if [ -n "$D" ]; then
-    OPTS="--root=$D"
+	exit 0
 fi
 
 if type systemctl >/dev/null 2>/dev/null; then
-	if [ -z "$D" ]; then
-		systemctl daemon-reload
-	fi
-
-	systemctl $OPTS ${SYSTEMD_AUTO_ENABLE} ${SYSTEMD_SERVICE_ESCAPED}
+	systemctl daemon-reload
+	systemctl preset ${SYSTEMD_SERVICE_ESCAPED}
 
-	if [ -z "$D" -a "${SYSTEMD_AUTO_ENABLE}" = "enable" ]; then
+	if [ "${SYSTEMD_AUTO_ENABLE}" = "enable" ]; then
 		systemctl --no-block restart ${SYSTEMD_SERVICE_ESCAPED}
 	fi
 fi
 }
 
 systemd_prerm() {
-OPTS=""
-
 if [ -n "$D" ]; then
-    OPTS="--root=$D"
+	exit 0
 fi
 
 if type systemctl >/dev/null 2>/dev/null; then
-	if [ -z "$D" ]; then
-		systemctl stop ${SYSTEMD_SERVICE_ESCAPED}
-	fi
+	systemctl stop ${SYSTEMD_SERVICE_ESCAPED}
 
 	systemctl $OPTS disable ${SYSTEMD_SERVICE_ESCAPED}
 fi
@@ -177,12 +166,22 @@ python systemd_populate_packages() {
                 else:
                     bb.fatal("SYSTEMD_SERVICE_%s value %s does not exist" % (pkg_systemd, service))
 
+    def systemd_create_presets(pkg):
+        action = get_package_var(d, 'SYSTEMD_AUTO_ENABLE', pkg)
+        presetf = oe.path.join(d.getVar("PKGD"), d.getVar("systemd_unitdir"), "system-preset/98-%s.preset" % pkg)
+        bb.utils.mkdirhier(os.path.dirname(presetf))
+        with open(presetf, 'a') as fd:
+            for service in d.getVar('SYSTEMD_SERVICE_%s' % pkg).split():
+                fd.write("%s %s\n" % (action,service))
+        d.appendVar("FILES_%s" % pkg, ' ' + oe.path.join(d.getVar("systemd_unitdir"), "system-preset/98-%s.preset" % pkg))
+
     # Run all modifications once when creating package
     if os.path.exists(d.getVar("D")):
         for pkg in d.getVar('SYSTEMD_PACKAGES').split():
             systemd_check_package(pkg)
             if d.getVar('SYSTEMD_SERVICE_' + pkg):
                 systemd_generate_package_scripts(pkg)
+                systemd_create_presets(pkg)
         systemd_check_services()
 }
 

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