Only open contract storage for operations that need it

myth

@@ -64,8 +64,6 @@ try:
 except KeyError:
     db_dir = None
 
-contract_storage = get_persistent_storage(db_dir)
-
 args = parser.parse_args()
 
 if (args.v):
@@ -155,14 +153,16 @@ elif (args.trace):
         else:
             print(str(i['pc']) + " " + i['op'] + ";\tSTACK: " + i['stack'])
 
-elif (args.search):
+else:
+    contract_storage = get_persistent_storage(db_dir)
+    if (args.search):
 
         try:
             contract_storage.search(args.search, searchCallback)
         except SyntaxError:
             exitWithError("Syntax error in search expression.")
 
-elif (args.xrefs):
+    elif (args.xrefs):
 
         try:
             contract_hash = util.safe_decode(args.xrefs)
@@ -175,14 +175,14 @@ elif (args.xrefs):
         except KeyError:
             exitWithError("Contract not found in the database.")        
 
-elif (args.init_db):
+    elif (args.init_db):
         if args.ipc:
             contract_storage.initialize(args.rpchost, args.rpcport, args.sync_all, args.ipc)
         else:
             contract_storage.initialize(args.rpchost, args.rpcport, args.sync_all, args.ipc)
 
-elif (args.hash):
+    elif (args.hash):
         print("0x" + utils.sha3(args.hash)[:4].hex())
 
-else:
+    else:
         parser.print_help()