V3 deployment script (#275)

script/DeployDutchV3.s.sol

@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+pragma solidity ^0.8.13;
+
+import "forge-std/console2.sol";
+import "forge-std/Script.sol";
+import {IPermit2} from "permit2/src/interfaces/IPermit2.sol";
+import {V3DutchOrderReactor} from "../src/reactors/V3DutchOrderReactor.sol";
+
+struct V3DutchOrderDeployment {
+    IPermit2 permit2;
+    V3DutchOrderReactor reactor;
+}
+
+contract DeployDutchV3 is Script {
+    address constant PERMIT2 = 0x000000000022D473030F116dDEE9F6B43aC78BA3;
+
+    function setUp() public {}
+
+    function run() public returns (V3DutchOrderDeployment memory deployment) {
+        address owner = vm.envAddress("FOUNDRY_REACTOR_OWNER");
+        console2.log("Owner", owner);
+        vm.startBroadcast();
+
+        V3DutchOrderReactor reactor = new V3DutchOrderReactor{salt: 0x00}(IPermit2(PERMIT2), owner);
+        console2.log("Reactor", address(reactor));
+
+        vm.stopBroadcast();
+
+        return V3DutchOrderDeployment(IPermit2(PERMIT2), reactor);
+    }
+}

src/lib/V3DutchOrderLib.sol

@@ -205,7 +205,7 @@ library V3DutchOrderLib {
     /// @notice get the digest of the cosigner data
     /// @param order the priorityOrder
     /// @param orderHash the hash of the order
-    function cosignerDigest(V3DutchOrder memory order, bytes32 orderHash) internal view returns (bytes32) {
+    function cosignerDigest(V3DutchOrder memory order, bytes32 orderHash) internal pure returns (bytes32) {
         return keccak256(abi.encodePacked(orderHash, abi.encode(order.cosignerData)));
     }
 }