Proxy functionality: substitute IVault

src/dexorder/contract/__init__.py

@@ -1,4 +1,4 @@
-import json
+import json, os, logging
 
 from .. import current_w3 as _current_w3
 from .abi import abis
@@ -6,6 +6,9 @@ from .contract_proxy import ContractProxy
 
 
 def get_contract_data(name):
+    if name == "Vault" and os.path.exists(f'../contract/out/I{name}.sol/I{name}.json') :
+        logging.warning("getting abi from IVault.json instead of Vault.json")
+        name = "IVault" # Special case for proxy Vault
     with open(f'../contract/out/{name}.sol/{name}.json', 'rt') as file:
         return json.load(file)