created SeaConfigCreator

running frappy with 'seadesc' cfg does the same as previously
starting 'sea' cfg and performing seaconn:_describe automatically

create mbe.cfg

secop_psi/sea.py

@@ -271,9 +271,27 @@ class SeaClient(ProxyClient, Module):
         reply = self.request(command)
         return reply
 
-    @Command(result=StringType())
-    def describe(self):
-        """save objects (and sub-objects) description"""
+    @Command(StringType(), result=StringType())
+    def query(self, cmd):
+        """a request checking for errors and accepting 0 or 1 line as result"""
+        errors = []
+        reply = None
+        for line in self.request(cmd).split('\n'):
+            if line.strip().startswith('ERROR:'):
+                errors.append(line[6:].strip())
+            elif reply is None:
+                reply = line.strip()
+            else:
+                self.log.info('SEA: superfluous reply %r to %r', reply, cmd)
+        if errors:
+            raise HardwareError('; '.join(errors))
+        return reply
+
+
+class SeaConfigCreator(SeaClient):
+    def startModule(self, started_callback):
+        """save objects (and sub-objects) description and exit"""
+        self._connect(lambda: None)
         reply = self.request('describe_all')
         reply = ''.join('' if line.startswith('WARNING') else line for line in reply.split('\n'))
         description, reply = json.loads(reply)
@@ -300,28 +318,11 @@ class SeaClient(ProxyClient, Module):
                                            nodedescr=description.get(filename, filename)))
                 for obj in descr:
                     fp.write(CFG_MODULE % dict(modcls=modcls[obj], module=obj, seaconn=seaconn))
-            content = json.dumps(descr).replace('}, {', '},\n{')
+            content = json.dumps(descr).replace('}, {', '},\n{').replace('[{', '[\n{').replace('}]}, ', '}]},\n\n')
             with open(join(seaconfdir, filename + '.json'), 'w') as fp:
                 fp.write(content + '\n')
             result.append('%s: %s' % (filename, ','.join(n for n in descr)))
-        return '; '.join(result)
-
-    @Command(StringType(), result=StringType())
-    def query(self, cmd):
-        """a request checking for errors and accepting 0 or 1 line as result"""
-        errors = []
-        reply = None
-        for line in self.request(cmd).split('\n'):
-            if line.strip().startswith('ERROR:'):
-                errors.append(line[6:].strip())
-            elif reply is None:
-                reply = line.strip()
-            else:
-                self.log.info('SEA: superfluous reply %r to %r', reply, cmd)
-        if errors:
-            raise HardwareError('; '.join(errors))
-        return reply
-
+        raise SystemExit('; '.join(result))
 
 SEA_TO_SECOPTYPE = {
     'float': FloatRange(),