Update Sepolia Gas Config (#135)

* Init

* Added updateGasConfigSepolia script and associated env/makefile

* Adjust scalar values to most recent, address PR comment

* Update to pkey cli flag

* Suppress stdout

sepolia/2024-03-07-ecotone-sysconfig-updates/.env

@@ -0,0 +1,30 @@
+OP_COMMIT=c87a469d7d679e8a4efbace56c3646b925bcc009
+BASE_CONTRACTS_COMMIT=56d8f40b48795663fa88366d762161af5a1ba5d5
+
+# https://sepolia.etherscan.io/address/0xf272670eb55e895584501d564AfEB048bEd26194
+L1_SYSTEM_CONFIG_ADDRESS=0xf272670eb55e895584501d564AfEB048bEd26194 
+OWNER_ADDRESS=0x608081689Fe46936fB2fBDF7552CbB1D80ad4822
+PRIVATE_KEY=
+
+# scalars defined by running: https://github.com/ethereum-optimism/optimism/tree/4b7627cbb94a75e478a34f33f91121ef6ae794b3/op-chain-ops/cmd/ecotone-scalar
+# 1 BLOB PER TX
+# base fee scalar     : 6607
+# blob base fee scalar: 654675
+# v1 hex encoding  : 0x0100000000000000000000000000000000000000000000000009fd53000019cf
+# uint value for the 'scalar' parameter in SystemConfigProxy.setGasConfig():
+# SCALAR=452312848583266388373324160190187140051835877600158453279133999338625178063
+
+
+# 6 BLOBS PER TX
+# base fee scalar     : 1101
+# blob base fee scalar: 659851
+# v1 hex encoding  : 0x010000000000000000000000000000000000000000000000000a118b0000044d
+# uint value for the 'scalar' parameter in SystemConfigProxy.setGasConfig():
+SCALAR=452312848583266388373324160190187140051835877600158453279134021569375896653
+
+# THINGS WENT WRONG --> FALLBACK TO CALLDATA
+# base fee scalar     : 668098
+# blob base fee scalar: 0
+# v1 hex encoding  : 0x01000000000000000000000000000000000000000000000000000000000a31c2
+# uint value for the 'scalar' parameter in SystemConfigProxy.setGasConfig():
+FALLBACK_SCALAR=452312848583266388373324160190187140051835877600158453279131187530911330754

sepolia/2024-03-07-ecotone-sysconfig-updates/Makefile

@@ -0,0 +1,9 @@
+include ../../Makefile
+include ../.env
+include .env
+
+# Unpause OptimismPortal Commands
+
+.PHONY: update-gas-config
+update-gas-config:
+	@forge script --rpc-url $(L1_RPC_URL) UpdateGasConfigSepolia --private-key $(PRIVATE_KEY)  --broadcast

sepolia/2024-03-07-ecotone-sysconfig-updates/foundry.toml

@@ -0,0 +1,20 @@
+[profile.default]
+src = 'src'
+out = 'out'
+libs = ['lib']
+broadcast = 'records'
+fs_permissions = [ {access = "read-write", path = "./"} ]
+optimizer = true
+optimizer_runs = 999999
+solc_version = "0.8.15"
+via-ir = true
+remappings = [
+    '@eth-optimism-bedrock/=lib/optimism/packages/contracts-bedrock/',
+    '@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts',
+    '@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts',
+    '@rari-capital/solmate/=lib/solmate/',
+    '@base-contracts/=lib/base-contracts',
+    'solady/=lib/solady/src/'
+]
+
+# See more config options https://github.com/foundry-rs/foundry/tree/master/config

sepolia/2024-03-07-ecotone-sysconfig-updates/script/UpdateGasConfig.sol

@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.15;
+
+import {SystemConfig} from "@eth-optimism-bedrock/src/L1/SystemConfig.sol";
+import "forge-std/Script.sol";
+
+contract UpdateGasConfigSepolia is Script {
+
+    address internal L1_SYSTEM_CONFIG = vm.envAddress("L1_SYSTEM_CONFIG_ADDRESS");
+    uint256 internal SCALAR = vm.envUint("SCALAR");
+    address internal OWNER = vm.envAddress("OWNER_ADDRESS");
+
+    function _postCheck() internal view {
+        require(SystemConfig(L1_SYSTEM_CONFIG).scalar() == SCALAR);
+        require(SystemConfig(L1_SYSTEM_CONFIG).overhead() == 0);
+    }
+
+    function run() public {
+        vm.startBroadcast(OWNER);
+        SystemConfig(L1_SYSTEM_CONFIG).setGasConfig(0, SCALAR); 
+        _postCheck();
+        vm.stopBroadcast(); 
+    }
+}