contracts-bedrock: dedupe code for constants

packages/contracts-bedrock/deploy/017-SystemConfigImpl.ts

@@ -2,27 +2,19 @@ import assert from 'assert'
 
 import { DeployFunction } from 'hardhat-deploy/dist/types'
 import '@eth-optimism/hardhat-deploy-config'
-import { ethers, BigNumber } from 'ethers'
+import { BigNumber } from 'ethers'
 
+import { defaultResourceConfig } from '../src/constants'
 import { assertContractVariable, deploy } from '../src/deploy-utils'
 
-const uint128Max = ethers.BigNumber.from('0xffffffffffffffffffffffffffffffff')
-
-const defaultResourceConfig = {
-  maxResourceLimit: 20_000_000,
-  elasticityMultiplier: 10,
-  baseFeeMaxChangeDenominator: 8,
-  minimumBaseFee: ethers.utils.parseUnits('1', 'gwei'),
-  systemTxMaxGas: 1_000_000,
-  maximumBaseFee: uint128Max,
-}
-
 const deployFn: DeployFunction = async (hre) => {
   const batcherHash = hre.ethers.utils
     .hexZeroPad(hre.deployConfig.batchSenderAddress, 32)
     .toLowerCase()
 
-  const l2GenesisBlockGasLimit = hre.deployConfig.l2GenesisBlockGasLimit
+  const l2GenesisBlockGasLimit = BigNumber.from(
+    hre.deployConfig.l2GenesisBlockGasLimit
+  )
   const l2GasLimitLowerBound = BigNumber.from(
     defaultResourceConfig.systemTxMaxGas +
       defaultResourceConfig.maxResourceLimit

packages/contracts-bedrock/deploy/019-SystemDictatorInit.ts

 import assert from 'assert'
 
-import { ethers, BigNumber } from 'ethers'
+import { ethers } from 'ethers'
 import { DeployFunction } from 'hardhat-deploy/dist/types'
 import { awaitCondition } from '@eth-optimism/core-utils'
 import '@eth-optimism/hardhat-deploy-config'
@@ -10,6 +10,7 @@ import {
   getContractsFromArtifacts,
   getDeploymentAddress,
 } from '../src/deploy-utils'
+import { defaultResourceConfig } from '../src/constants'
 
 const deployFn: DeployFunction = async (hre) => {
   const { deployer } = await hre.getNamedAccounts()
@@ -102,16 +103,7 @@ const deployFn: DeployFunction = async (hre) => {
       unsafeBlockSigner: hre.deployConfig.p2pSequencerAddress,
       // The resource config is not exposed to the end user
       // to simplify deploy config. It may be introduced in the future.
-      resourceConfig: {
-        maxResourceLimit: 20_000_000,
-        elasticityMultiplier: 10,
-        baseFeeMaxChangeDenominator: 8,
-        minimumBaseFee: ethers.utils.parseUnits('1', 'gwei'),
-        systemTxMaxGas: 1_000_000,
-        maximumBaseFee: BigNumber.from(
-          '0xffffffffffffffffffffffffffffffff'
-        ).toString(),
-      },
+      resourceConfig: defaultResourceConfig,
     },
   }
 

packages/contracts-bedrock/src/constants.ts

+import { ethers } from 'ethers'
+
 /**
  * Predeploys are Solidity contracts that are injected into the initial L2 state and provide
  * various useful functions.
@@ -26,3 +28,14 @@ export const predeploys = {
   BaseFeeVault: '0x4200000000000000000000000000000000000019',
   L1FeeVault: '0x420000000000000000000000000000000000001a',
 }
+
+const uint128Max = ethers.BigNumber.from('0xffffffffffffffffffffffffffffffff')
+
+export const defaultResourceConfig = {
+  maxResourceLimit: 20_000_000,
+  elasticityMultiplier: 10,
+  baseFeeMaxChangeDenominator: 8,
+  minimumBaseFee: ethers.utils.parseUnits('1', 'gwei'),
+  systemTxMaxGas: 1_000_000,
+  maximumBaseFee: uint128Max,
+}