[PATCH] systemd.bbclass: support template files with dots

["Jason M. Bills" <jason.m.bills@linux.intel.com>]

If the SYSTEMD_SERVICE variable contains a template instance that has
dots in the name such as "xyz.openbmc_project.my@instance.service", the
regex splits on all the dots resulting in the following python
exception:

Exception: ValueError: too many values to unpack (expected 3)

To continue to support service files with dots in the name, this changes
to first split only on the '@' to isolate the name, then split the
second half on the dot to get the remaining two parameters.

Confirmed when building that the three parameters for template instances
without dots came out the same and that template instances with dots
include the full name with dots in the first parameter.

Signed-off-by: Jason M. Bills <jason.m.bills@linux.intel.com>
---
 meta/classes-recipe/systemd.bbclass | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/meta/classes-recipe/systemd.bbclass b/meta/classes-recipe/systemd.bbclass
index 5a0550b287..fcd47809b2 100644
--- a/meta/classes-recipe/systemd.bbclass
+++ b/meta/classes-recipe/systemd.bbclass
@@ -247,7 +247,8 @@ python systemd_populate_packages() {
                 if not systemd_service_exists(service, user, d):
                     continue
                 if '@' in service and '@.' not in service:
-                    (servicename, instance, service_type) = re.split('[@.]', service)
+                    (servicename, postfix) = service.split('@')
+                    (instance, service_type) = postfix.split('.')
                     template_services.setdefault(servicename + '@.' + service_type, []).append(instance)
                 else:
                     template_services.setdefault(service, [])