update-rc.d: ignore initscript in prerm and preinst when systemd is active

In hybrid systemd/sysvinit builds, if the recipe inherits systemd and systemd
is installed, we can safely assume that the service gets stopped by the prerm
script fragment from systemd.bbclass. This fixes deinstallation of packages
with initscripts returning errors when no running service was found. The preinst
shouldn't run the initscript either, because postinst will call systemctl restart.

Signed-off-by: Andreas Oberritter <obi@opendreambox.org>
Signed-off-by: Ross Burton <ross.burton@intel.com>

diff --git a/meta/classes/update-rc.d.bbclass b/meta/classes/update-rc.d.bbclass
index 321924bb3eeb92223198ed35ef322d2a9eabffeb..2c3ef9edd18a9e02e6e57fa5bf1e4a289c9f2f74 100644 (file)
--- a/meta/classes/update-rc.d.bbclass
+++ b/meta/classes/update-rc.d.bbclass
@@ -11,11 +11,20 @@ INITSCRIPT_PARAMS ?= "defaults"
 
 INIT_D_DIR = "${sysconfdir}/init.d"
 
+def use_updatercd(d):
+    # If the distro supports both sysvinit and systemd, and the current recipe
+    # supports systemd, only call update-rc.d on rootfs creation or if systemd
+    # is not running. That's because systemctl enable/disable will already call
+    # update-rc.d if it detects initscripts.
+    if bb.utils.contains('DISTRO_FEATURES', 'systemd', True, False, d) and bb.data.inherits_class('systemd', d):
+        return '[ -n "$D" -o ! -d /run/systemd/system ]'
+    return 'true'
+
 updatercd_preinst() {
-if [ -z "$D" -a -f "${INIT_D_DIR}/${INITSCRIPT_NAME}" ]; then
+if ${@use_updatercd(d)} && [ -z "$D" -a -f "${INIT_D_DIR}/${INITSCRIPT_NAME}" ]; then
        ${INIT_D_DIR}/${INITSCRIPT_NAME} stop || :
 fi
-if type update-rc.d >/dev/null 2>/dev/null; then
+if ${@use_updatercd(d)} && type update-rc.d >/dev/null 2>/dev/null; then
        if [ -n "$D" ]; then
                OPT="-f -r $D"
        else
@@ -26,7 +35,7 @@ fi
 }
 
 updatercd_postinst() {
-if type update-rc.d >/dev/null 2>/dev/null; then
+if ${@use_updatercd(d)} && type update-rc.d >/dev/null 2>/dev/null; then
        if [ -n "$D" ]; then
                OPT="-r $D"
        else
@@ -37,13 +46,13 @@ fi
 }
 
 updatercd_prerm() {
-if [ -z "$D" -a -x "${INIT_D_DIR}/${INITSCRIPT_NAME}" ]; then
+if ${@use_updatercd(d)} && [ -z "$D" -a -x "${INIT_D_DIR}/${INITSCRIPT_NAME}" ]; then
        ${INIT_D_DIR}/${INITSCRIPT_NAME} stop || :
 fi
 }
 
 updatercd_postrm() {
-if type update-rc.d >/dev/null 2>/dev/null; then
+if ${@use_updatercd(d)} && type update-rc.d >/dev/null 2>/dev/null; then
        if [ -n "$D" ]; then
                OPT="-f -r $D"
        else