feat: add deployment scripts

script/Base.s.sol

@@ -1,9 +1,14 @@
 // SPDX-License-Identifier: GPL-3.0-or-later
 pragma solidity >=0.8.22;
 
+import { Strings } from "@openzeppelin/contracts/utils/Strings.sol";
+
+import { console2 } from "forge-std/src/console2.sol";
 import { Script } from "forge-std/src/Script.sol";
 
 abstract contract BaseScript is Script {
+    using Strings for uint256;
+
     /// @dev Included to enable compilation of the script without a $MNEMONIC environment variable.
     string internal constant TEST_MNEMONIC = "test test test test test test test test test test test junk";
 
@@ -38,4 +43,26 @@ abstract contract BaseScript is Script {
         _;
         vm.stopBroadcast();
     }
+
+    /// @dev The presence of the salt instructs Forge to deploy contracts via this deterministic CREATE2 factory:
+    /// https://github.com/Arachnid/deterministic-deployment-proxy
+    ///
+    /// Notes:
+    /// - The salt format is "ChainID <chainid>, Version <version>".
+    /// - The version is obtained from `package.json` using the `ffi` cheatcode:
+    /// https://book.getfoundry.sh/cheatcodes/ffi
+    /// - Requires the `jq` CLI installed: https://jqlang.github.io/jq/
+    function constructCreate2Salt() public returns (bytes32) {
+        string memory chainId = block.chainid.toString();
+        string[] memory inputs = new string[](4);
+        inputs[0] = "jq";
+        inputs[1] = "-r";
+        inputs[2] = ".version";
+        inputs[3] = "./package.json";
+        bytes memory result = vm.ffi(inputs);
+        string memory version = string(result);
+        string memory create2Salt = string.concat("ChainID ", chainId, ", Version ", version);
+        console2.log("The CREATE2 salt is \"%s\"", create2Salt);
+        return bytes32(abi.encodePacked(create2Salt));
+    }
 }

script/DeployOpenEnded.s.sol

@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+pragma solidity >=0.8.22 <0.9.0;
+
+import { SablierV2OpenEnded } from "src/SablierV2OpenEnded.sol";
+
+import { BaseScript } from "./Base.s.sol";
+
+contract DeployOpenEnded is BaseScript {
+    function run() public broadcast returns (SablierV2OpenEnded openEnded) {
+        openEnded = new SablierV2OpenEnded();
+    }
+}

script/DeployOpenEndedDeterministic.s.sol

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+pragma solidity >=0.8.22 <0.9.0;
+
+import { SablierV2OpenEnded } from "src/SablierV2OpenEnded.sol";
+
+import { BaseScript } from "./Base.s.sol";
+
+/// @notice Deploys {SablierV2OpenEnded} at a deterministic address across chains.
+/// @dev Reverts if the contract has already been deployed.
+contract DeployOpenEnded is BaseScript {
+    function run() public broadcast returns (SablierV2OpenEnded openEnded) {
+        openEnded = new SablierV2OpenEnded{ salt: constructCreate2Salt() }();
+    }
+}