feat: add "BaseScript"

refactor: rename "DeployFoo" to just "Deploy"

README.md

@@ -126,7 +126,7 @@ $ forge coverage
 Deploy to Anvil:
 
 ```sh
-$ forge script script/DeployFoo.s.sol --broadcast --fork-url http://localhost:8545
+$ forge script script/Deploy.s.sol --broadcast --fork-url http://localhost:8545
 ```
 
 For this script to work, you need to have a `MNEMONIC` environment variable set to a valid

script/Base.s.sol

@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: MIT
+pragma solidity >=0.8.19;
+
+import { Script } from "forge-std/Script.sol";
+
+abstract contract BaseScript is Script {
+    /// @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";
+
+    /// @dev Needed for the deterministic deployments.
+    bytes32 internal constant ZERO_SALT = bytes32(0);
+
+    /// @dev The address of the contract deployer.
+    address internal deployer;
+
+    /// @dev Used to derive the deployer's address.
+    string internal mnemonic;
+
+    constructor() {
+        mnemonic = vm.envOr("MNEMONIC", TEST_MNEMONIC);
+        (deployer,) = deriveRememberKey({ mnemonic: mnemonic, index: 0 });
+    }
+
+    modifier broadcaster() {
+        vm.startBroadcast(deployer);
+        _;
+        vm.stopBroadcast();
+    }
+}

script/Deploy.s.sol

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity >=0.8.19;
+
+import { Foo } from "../src/Foo.sol";
+
+import { BaseScript } from "./Base.s.sol";
+
+/// @dev See the Solidity Scripting tutorial: https://book.getfoundry.sh/tutorials/solidity-scripting
+contract Deploy is BaseScript {
+    function run() public broadcaster returns (Foo foo) {
+        foo = new Foo();
+    }
+}

script/DeployFoo.s.sol

@@ -1,22 +0,0 @@
-// SPDX-License-Identifier: UNLICENSED
-pragma solidity >=0.8.19;
-
-import { Script } from "forge-std/Script.sol";
-import { Foo } from "../src/Foo.sol";
-
-/// @dev See the Solidity Scripting tutorial: https://book.getfoundry.sh/tutorials/solidity-scripting
-contract DeployFoo is Script {
-    address internal deployer;
-    Foo internal foo;
-
-    function setUp() public virtual {
-        string memory mnemonic = vm.envString("MNEMONIC");
-        (deployer,) = deriveRememberKey(mnemonic, 0);
-    }
-
-    function run() public {
-        vm.startBroadcast(deployer);
-        foo = new Foo();
-        vm.stopBroadcast();
-    }
-}