Add submodule and ABIs

.gitmodules

@@ -44,3 +44,6 @@
 [submodule "contracts/velvet-core"]
 	path = contracts/velvet-core
 	url = https://github.com/Velvet-Capital/velvet-core.git
+[submodule "contracts/uniswap-universal-router"]
+	path = contracts/uniswap-universal-router
+	url = https://github.com/Uniswap/universal-router.git

Makefile

@@ -68,6 +68,16 @@ copy-uniswapv3-abi: uniswapv3
 	@find contracts/uniswap-v3-core/artifacts/contracts -iname "*.json" -not -iname "*.dbg.json" -exec cp {} eth_defi/abi/uniswap_v3 \;
 	@find contracts/uniswap-v3-periphery/artifacts/contracts -iname "*.json" -not -iname "*.dbg.json" -exec cp {} eth_defi/abi/uniswap_v3 \;
 
+# Compile v3 core and periphery
+uniswap-universalrouter:
+	@(cd contracts/uniswap-universal-router && yarn install && yarn compile) > /dev/null
+
+# Extract ABI and copied over to our abi/uniswap_universal_router/ folder
+copy-uniswap-universalrouter-abi: uniswap-universalrouter
+	@mkdir -p eth_defi/abi/uniswap_universal_router
+	@find contracts/uniswap-universal-router/artifacts/contracts -iname "*.json" -not -iname "*.dbg.json" -exec cp {} eth_defi/abi/uniswap_universal_router \;
+	@find contracts/uniswap-universal-router/artifacts/permit2 -iname "*.json" -not -iname "*.dbg.json" -exec cp {} eth_defi/abi/uniswap_universal_router \;
+
 aavev3:
 	@(cd contracts/aave-v3-deploy && npm ci && npm run compile) > /dev/null
 	@mkdir -p eth_defi/abi/aave_v3

eth_defi/abi/uniswap_universal_router/Allowance.json

@@ -0,0 +1,10 @@
+{
+  "_format": "hh-sol-artifact-1",
+  "contractName": "Allowance",
+  "sourceName": "permit2/src/libraries/Allowance.sol",
+  "abi": [],
+  "bytecode": "0x6080806040523460175760119081601d823930815050f35b600080fdfe600080fdfea164736f6c6343000811000a",
+  "deployedBytecode": "0x600080fdfea164736f6c6343000811000a",
+  "linkReferences": {},
+  "deployedLinkReferences": {}
+}