systemd: Add homed PACKAGECONFIG

If systemd is built with fdisk support[1] and the openssl and cryptsetup
PACKAGECONFIG are enabled, systemd-homed[1] is automatically enabled.
The org.freedesktop.home1.conf file was forgotten, so this commit adds
the file and make enabling homed a explicit choice.

systemd-homed.service and systemd-homed-activate.service have a Also= on
each other, so "systemctl" has been fixed to handle the circular
dependency.

userdb isn't strictly speaking needed for homed but "systemctl" can't
handle the missing unit file and upstream recommend enabling both[3].

[1] Automatically enabled if the fdisk dependency is installed which it
    is as util-linux is pulled in by systemd
[2] https://www.freedesktop.org/software/systemd/man/systemd-homed.service.html
[3] https://github.com/systemd/systemd/commit/871dc8d644eef7542a5330f84c25b1db2617317c

(From OE-Core rev: fff339b5bd7789db5d0c024fc84490ac17fa4fe9)

Signed-off-by: Kristian Klausen <kristian@klausen.dk>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/meta/recipes-core/systemd/systemd-systemctl/systemctl b/meta/recipes-core/systemd/systemd-systemctl/systemctl
index e8c3d2d1ee..6324319a45 100755
--- a/meta/recipes-core/systemd/systemd-systemctl/systemctl
+++ b/meta/recipes-core/systemd/systemd-systemctl/systemctl
@@ -191,7 +191,7 @@ class SystemdUnit():
         except KeyError:
             pass
 
-    def enable(self):
+    def enable(self, caller_unit=None):
         # if we're enabling an instance, first extract the actual instance
         # then figure out what the template unit is
         template = re.match(r"[^@]+@(?P<instance>[^\.]*)\.", self.unit)
@@ -227,7 +227,8 @@ class SystemdUnit():
         try:
             for also in config.get('Install', 'Also'):
                 try:
-                    SystemdUnit(self.root, also).enable()
+                    if caller_unit != also:
+                        SystemdUnit(self.root, also).enable(unit)
                 except SystemdUnitNotFoundError as e:
                     sys.exit("Error: Systemctl also enable issue with  %s (%s)" % (service, e.unit))