contracts-bedrock: chains constants library

packages/contracts-bedrock/scripts/Chains.sol

+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+/// @notice Chain IDs for the various networks.
+library Chains {
+    uint256 internal constant Mainnet = 1;
+    uint256 internal constant OPMainnet = 10;
+    uint256 internal constant Goerli = 5;
+    uint256 internal constant OPGoerli = 420;
+    uint256 internal constant Sepolia = 11155111;
+    uint256 internal constant OPSepolia = 11155420;
+    uint256 internal constant LocalDevnet = 901;
+    uint256 internal constant OPLocalDevnet = 902;
+    uint256 internal constant GethDevnet = 1337;
+}

packages/contracts-bedrock/scripts/Deploy.s.sol

@@ -26,6 +26,7 @@ import { DisputeGameFactory } from "../src/dispute/DisputeGameFactory.sol";
 import { FaultDisputeGame } from "../src/dispute/FaultDisputeGame.sol";
 import { L1ERC721Bridge } from "../src/L1/L1ERC721Bridge.sol";
 import { Predeploys } from "../src/libraries/Predeploys.sol";
+import { Chains } from "./Chains.sol";
 
 import { IBigStepper } from "../src/dispute/interfaces/IBigStepper.sol";
 import { AlphabetVM } from "../test/FaultDisputeGame.t.sol";
@@ -246,7 +247,7 @@ contract Deploy is Deployer {
 
     /// @notice Deploy the DisputeGameFactoryProxy
     function deployDisputeGameFactoryProxy() broadcast() public returns (address) {
-        if (block.chainid == 901 || block.chainid == 1337) {
+        if (block.chainid == Chains.LocalDevnet || block.chainid == Chains.GethDevnet) {
             address proxyAdmin = mustGetAddress("ProxyAdmin");
             Proxy proxy = new Proxy({
                 _admin: proxyAdmin
@@ -347,7 +348,7 @@ contract Deploy is Deployer {
 
     /// @notice Deploy the DisputeGameFactory
     function deployDisputeGameFactory() broadcast() public returns (address) {
-        if (block.chainid == 901 || block.chainid == 1337) {
+        if (block.chainid == Chains.LocalDevnet || block.chainid == Chains.GethDevnet) {
             DisputeGameFactory factory = new DisputeGameFactory();
             save("DisputeGameFactory", address(factory));
             console.log("DisputeGameFactory deployed at %s", address(factory));
@@ -442,7 +443,7 @@ contract Deploy is Deployer {
 
     /// @notice Initialize the DisputeGameFactory
     function initializeDisputeGameFactory() broadcast() public {
-        if (block.chainid == 901 || block.chainid == 1337) {
+        if (block.chainid == Chains.LocalDevnet || block.chainid == Chains.GethDevnet) {
             ProxyAdmin proxyAdmin = ProxyAdmin(mustGetAddress("ProxyAdmin"));
             address disputeGameFactoryProxy = mustGetAddress("DisputeGameFactoryProxy");
             address disputeGameFactory = mustGetAddress("DisputeGameFactory");
@@ -676,7 +677,7 @@ contract Deploy is Deployer {
 
     /// @notice Transfer ownership of the DisputeGameFactory contract to the final system owner
     function transferDisputeGameFactoryOwnership() broadcast() public {
-        if (block.chainid == 901 || block.chainid == 1337) {
+        if (block.chainid == Chains.LocalDevnet || block.chainid == Chains.GethDevnet) {
             DisputeGameFactory disputeGameFactory = DisputeGameFactory(mustGetAddress("DisputeGameFactoryProxy"));
             address owner = disputeGameFactory.owner();
             address finalSystemOwner = cfg.finalSystemOwner();
@@ -689,7 +690,7 @@ contract Deploy is Deployer {
 
     /// @notice Sets the implementation for the `FAULT` game type in the `DisputeGameFactory`
     function setFaultGameImplementation() broadcast() public {
-        if (block.chainid == 901 || block.chainid == 1337) {
+        if (block.chainid == Chains.LocalDevnet || block.chainid == Chains.GethDevnet) {
             DisputeGameFactory factory = DisputeGameFactory(mustGetAddress("DisputeGameFactoryProxy"));
             Claim absolutePrestate = Claim.wrap(bytes32(cfg.faultGameAbsolutePrestate()));
             IBigStepper faultVm = IBigStepper(new AlphabetVM(absolutePrestate));

packages/contracts-bedrock/scripts/DeployConfig.s.sol

@@ -5,6 +5,7 @@ import { Script } from "forge-std/Script.sol";
 import { console2 as console } from "forge-std/console2.sol";
 import { stdJson } from "forge-std/StdJson.sol";
 import { Executables } from "./Executables.sol";
+import { Chains } from "./Chains.sol";
 
 /// @title DeployConfig
 /// @notice Represents the configuration required to deploy the system. It is expected
@@ -87,7 +88,7 @@ contract DeployConfig is Script {
         eip1559Denominator = stdJson.readUint(_json, "$.eip1559Denominator");
         eip1559Elasticity = stdJson.readUint(_json, "$.eip1559Elasticity");
 
-        if (block.chainid == 901 || block.chainid == 1337) {
+        if (block.chainid == Chains.LocalDevnet || block.chainid == Chains.GethDevnet) {
             faultGameAbsolutePrestate = stdJson.readUint(_json, "$.faultGameAbsolutePrestate");
             faultGameMaxDepth = stdJson.readUint(_json, "$.faultGameMaxDepth");
             faultGameMaxDuration = stdJson.readUint(_json, "$.faultGameMaxDuration");