feat: add deployment scripts for BatchTransferFraction on Sepolia and Optimism

Author: tnkshuuhei

package.json

@@ -12,6 +12,8 @@
     "test:coverage:report": "forge coverage --fork-url https://mainnet.optimism.io --report lcov && genhtml lcov.info --branch-coverage --output-dir coverage",
     "test:op": "forge clean && forge fmt && forge test --fork-url https://mainnet.optimism.io --fork-block-number 132218259",
     "test:sepolia": "forge clean && forge fmt && forge test --fork-url https://sepolia.drpc.org ",
+    "deploy:sepolia": "forge script script/DeployBatchTransferScript.s.sol --rpc-url https://sepolia.drpc.org --broadcast -vvv --private-key $DEPLOYER_PRIVATE_KEY --etherscan-api-key sepolia --verify",
+    "deploy:op": "forge script script/DeployBatchTransferScript.s.sol --rpc-url https://mainnet.optimism.io --broadcast -vvv --private-key $DEPLOYER_PRIVATE_KEY --etherscan-api-key optimism --verify",
     "format": "forge fmt",
     "clean": "forge clean"
   }

script/DeployBatchTransferScript.s.sol

@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.28;
+
+import "forge-std/Script.sol";
+import "../src/BatchTransferFraction.sol";
+import "../src/interfaces/IHypercertToken.sol";
+import { Create2 } from "@openzeppelin/contracts/utils/Create2.sol";
+
+contract DeployBatchTransferScript is Script {
+    IHypercertToken internal hypercertToken;
+
+    function configureChain() public {
+        if (block.chainid == 10) {
+            // Optimism mainnet
+            hypercertToken = IHypercertToken(0x822F17A9A5EeCFd66dBAFf7946a8071C265D1d07);
+        } else if (block.chainid == 11_155_111) {
+            // Sepolia
+            hypercertToken = IHypercertToken(0xa16DFb32Eb140a6f3F2AC68f41dAd8c7e83C4941);
+        } else {
+            revert("Unsupported chain");
+        }
+    }
+
+    function run() external {
+        configureChain();
+
+        vm.startBroadcast();
+
+        bytes32 salt = keccak256(abi.encodePacked("BatchTransferFraction"));
+
+        bytes memory arg = abi.encode(address(hypercertToken));
+
+        bytes memory bytecode = abi.encodePacked(type(BatchTransferFraction).creationCode, arg);
+
+        address deployedAddress = Create2.deploy(0, salt, bytecode);
+
+        console.log("BatchTransferFraction deployed to: %s", address(deployedAddress));
+        vm.stopBroadcast();
+    }
+}

src/BatchTransferFraction.sol

@@ -4,11 +4,10 @@ pragma solidity ^0.8.28;
 import "./interfaces/IHypercertToken.sol";
 
 contract BatchTransferFraction {
-    IHypercertToken public hypercertToken;
+    IHypercertToken public immutable hypercertToken;
     uint256 internal constant FRACTION_LIMIT = 253;
 
     error INVALID_LENGTHS();
-
     error INVALID_DATA();
     error INVALID_CALLER(address caller);
     error INVALID_HYPERCERT_ADDRESS(address hypercertAddress);