atsrt seweb and feeder as systemd user unit

single.py

@@ -0,0 +1,104 @@
+# *****************************************************************************
+#
+# This program is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 2 of the License, or (at your option) any later
+# version.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# Module authors:
+#   Markus Zolliker <markus.zolliker@psi.ch>
+#
+# *****************************************************************************
+
+import os
+from os.path import expanduser
+from configparser import ConfigParser
+from servicemanager.base import ServiceManager
+
+
+class SingleManager(ServiceManager):
+    """service to be started with systemd, only one per computer
+
+    running as systemd (user level)
+    """
+
+    def systemd_service(self, service):
+        """return the name of the systemd service"""
+        raise NotImplementedError
+
+    def treat_args(self, argdict, unknown=(), extra=()):
+        if not argdict.get('ins'):
+            argdict['ins'] = self.single_ins
+        return super().treat_args(argdict, unknown, extra)
+
+    def systemd_action(self, service, action):
+        service_ports = self.get_ins_info(self.single_ins)
+        services = list(service_ports) if service is None else [service]
+        for service in services:
+            print(f'systemctl --user {action} {self.group}@{service}')
+            os.system(f'systemctl --user {action} {self.systemd_service(service)}')
+
+    def do_start(self, ins, service=None, cfg='', restart=False, wait=False, logger=None, opts=''):
+        if wait:
+            super().do_start(ins, service, False, True, logger, opts)
+            return
+        if restart:
+            action = 'restart'
+        else:
+            action = 'start'
+        self.systemd_action(service, action)
+
+    def do_stop(self, ins, service=None, *args):
+        self.systemd_action(service, 'stop')
+
+
+class FeederManager(SingleManager):
+    group = 'feeder'
+    services = ('central', 'local')
+    USAGE = """
+    Usage:
+
+      feeder start <instance> <service>
+      feeder restart <instance> <service>
+      feeder stop <instance> <service>
+      feeder list [<instance>]
+
+      %s
+    """
+
+    def __init__(self):
+        parser = ConfigParser()
+        parser.read(expanduser('~/.config/sehistory'))
+        services = tuple(s for s in self.services if s in parser.sections())
+        self.services = services
+        super().__init__()
+
+    def systemd_service(self, service):
+        return f'{self.group}@{service}'
+
+
+class SewebManager(SingleManager):
+    group = 'seweb'
+    services = ('',)
+    USAGE = """
+    Usage:
+
+      seweb start <instance>
+      seweb restart <instance>
+      seweb stop <instance>
+      seweb list [<instance>]
+
+      %s
+    """
+
+    def systemd_service(self, service):
+        return f'{self.group}@{self.single_ins}'