support to start sea automatically from SeaClient (with -q arg)

seaman.py

@@ -25,7 +25,7 @@ import time
 import termios
 import subprocess
 import os
-from servicemanager.base import ServiceManager, ServiceDown
+from servicemanager.base import ServiceManager, ServiceDown, UsageError
 from servicemanager.sicsclient import sics_client
 
 
@@ -73,17 +73,20 @@ class SeaManager(ServiceManager):
             self.do_help()
         run_command('six -sea %s' % ins, wait=True)
 
-    def do_gui(self, ins=''):
-        try:
-            self.check_running(ins, 'sea')
-        except ServiceDown as e:
-            self.do_help()
-            print(str(e))
-            return
-        except KeyError:  # running on an other machine?
-            self.do_help()
-        run_command('SeaClient %s' % ins)
-        print('starting sea gui %s' % ins)
+    def do_gui(self, ins='', *args):
+        if ins:
+            args = (ins,) + args
+            if '-q' not in args:
+                try:
+                    self.check_running(ins, 'sea')
+                except ServiceDown as e:
+                    self.do_help()
+                    print(str(e))
+                    return
+                except KeyError:  # running on an other machine?
+                    self.do_help()
+        run_command('SeaClient %s' % ' '.join(args))
+        print('starting sea gui %s' % ' '.join(args))
         time.sleep(5)
 
     def get_cfg(self, ins, service):
@@ -100,13 +103,19 @@ class SeaManager(ServiceManager):
             return repr(e)
 
     def treat_args(self, argdict, unknown=(), extra=()):
-        if len(unknown) == 1:
+        extra = list(extra)
+        for arg in unknown:
+            if arg == '-q' and arg not in extra:
+                extra.append(arg)
+                continue
+            if argdict.get('ins'):
+                raise UsageError('superflous argument: %s' % arg)
             insts = set()
             filename = os.environ.get('InstrumentHostList')
             if filename:
                 with open(filename) as fil:
                     for line in fil:
-                        inst = None
+                        inst = ''
                         sea = False
                         for item in line.split():
                             key, _, value = item.partition('=')
@@ -116,7 +125,8 @@ class SeaManager(ServiceManager):
                                 sea = True
                         if inst and sea:
                             insts.add(inst)
-                if unknown[0] in insts:
-                    argdict['ins'] = unknown[0]
-                    return super().treat_args(argdict)
-        return super().treat_args(argdict, unknown, extra)
+                if arg in insts:
+                    argdict['ins'] = arg
+                else:
+                    raise UsageError('unknown argument: %s' % arg)
+        return [argdict.pop('ins', '')] + extra