sysupdate: move back to libexecdir to mark as experimental

Fixes https://github.com/systemd/systemd/issues/43498

units/meson.build

@@ -881,11 +881,11 @@ units = [
           'conditions' : ['ENABLE_SYSINSTALL'],
         },
         {
-          'file' : 'systemd-sysupdate-auto-enable.service',
+          'file' : 'systemd-sysupdate-auto-enable.service.in',
           'conditions' : ['ENABLE_SYSUPDATE'],
         },
         {
-          'file' : 'systemd-sysupdate-reboot.service',
+          'file' : 'systemd-sysupdate-reboot.service.in',
           'conditions' : ['ENABLE_SYSUPDATE'],
         },
         {
@@ -893,12 +893,12 @@ units = [
           'conditions' : ['ENABLE_SYSUPDATE'],
         },
         {
-          'file' : 'systemd-sysupdate-update.service',
+          'file' : 'systemd-sysupdate-update.service.in',
           'conditions' : ['ENABLE_SYSUPDATE'],
           'symlinks' : ['systemd-sysupdate.service'],  # compatibility after rename
         },
         {
-          'file' : 'systemd-sysupdate@.service',
+          'file' : 'systemd-sysupdate@.service.in',
           'conditions' : ['ENABLE_SYSUPDATE'],
         },
         {

units/systemd-sysupdate-auto-enable.service.in

@@ -14,8 +14,8 @@ Before=systemd-sysupdate-update.service
 
 [Service]
 Type=oneshot
-ExecStart=systemd-sysupdate enable-component --component-suggested
-ExecStart=systemd-sysupdate enable-feature --component-all --feature-suggested
+ExecStart={{LIBEXECDIR}}/systemd-sysupdate enable-component --component-suggested
+ExecStart={{LIBEXECDIR}}/systemd-sysupdate enable-feature --component-all --feature-suggested
 
 [Install]
 WantedBy=systemd-sysupdate-update.service

units/systemd-sysupdate-reboot.service.in

@@ -14,7 +14,7 @@ ConditionVirtualization=!container
 
 [Service]
 Type=oneshot
-ExecStart=systemd-sysupdate reboot
+ExecStart={{LIBEXECDIR}}/systemd-sysupdate reboot
 
 [Install]
 Also=systemd-sysupdate-reboot.timer

units/systemd-sysupdate-update.service.in

@@ -17,7 +17,7 @@ ConditionVirtualization=!container
 [Service]
 Type=simple
 NotifyAccess=main
-ExecStart=systemd-sysupdate update --component-all --cleanup=yes
+ExecStart={{LIBEXECDIR}}/systemd-sysupdate update --component-all --cleanup=yes
 
 # Keep this sandboxing synchronised with systemd-sysupdate@.service
 CapabilityBoundingSet=CAP_CHOWN CAP_FOWNER CAP_FSETID CAP_MKNOD CAP_SETFCAP CAP_SYS_ADMIN CAP_SETPCAP CAP_DAC_OVERRIDE CAP_LINUX_IMMUTABLE

units/systemd-sysupdate@.service.in

@@ -15,7 +15,7 @@ Conflicts=shutdown.target
 Before=shutdown.target
 
 [Service]
-ExecStart=-systemd-sysupdate
+ExecStart=-{{LIBEXECDIR}}/systemd-sysupdate
 
 # Keep this sandboxing synchronised with systemd-sysupdate-update.service
 CapabilityBoundingSet=CAP_CHOWN CAP_FOWNER CAP_FSETID CAP_MKNOD CAP_SETFCAP CAP_SYS_ADMIN CAP_SETPCAP CAP_DAC_OVERRIDE CAP_LINUX_IMMUTABLE