Merge pull request #7863 from ethereum-optimism/ctb/dead-delete-output

contracts-bedrock: delete dead delete output code

packages/contracts-bedrock/scripts/outputs/DeleteOutput.s.sol

-// SPDX-License-Identifier: MIT
-pragma solidity 0.8.15;
-
-import { console } from "forge-std/console.sol";
-import { IMulticall3 } from "forge-std/interfaces/IMulticall3.sol";
-
-import { LibSort } from "../libraries/LibSort.sol";
-import { IGnosisSafe, Enum } from "../interfaces/IGnosisSafe.sol";
-import { SafeBuilder } from "../universal/SafeBuilder.sol";
-
-import { Types } from "../../src/libraries/Types.sol";
-import { FeeVault } from "../../src/universal/FeeVault.sol";
-import { L2OutputOracle } from "../../src/L1/L2OutputOracle.sol";
-import { Predeploys } from "../../src/libraries/Predeploys.sol";
-
-/// @title DeleteOutput
-/// @notice Deletes an output root from the L2OutputOracle.
-/// @notice Example usage is provided in the README documentation.
-contract DeleteOutput is SafeBuilder {
-    /// @notice A set of contract addresses for the script.
-    struct ContractSet {
-        address Safe;
-        address ProxyAdmin;
-        address L2OutputOracleProxy;
-    }
-
-    /// @notice A mapping of chainid to a ContractSet.
-    mapping(uint256 => ContractSet) internal _contracts;
-
-    /// @notice The l2 output index we will delete.
-    uint256 internal index;
-
-    /// @notice The address of the L2OutputOracle to target.
-    address internal oracle;
-
-    /// @notice Place the contract addresses in storage for ux.
-    function setUp() external {
-        _contracts[GOERLI] = ContractSet({
-            Safe: 0xBc1233d0C3e6B5d53Ab455cF65A6623F6dCd7e4f,
-            ProxyAdmin: 0x01d3670863c3F4b24D7b107900f0b75d4BbC6e0d,
-            L2OutputOracleProxy: 0xE6Dfba0953616Bacab0c9A8ecb3a9BBa77FC15c0
-        });
-    }
-
-    /// @notice Returns the ContractSet for the defined block chainid.
-    /// @dev Reverts if no ContractSet is defined.
-    function contracts() public view returns (ContractSet memory) {
-        ContractSet memory cs = _contracts[block.chainid];
-        if (cs.Safe == address(0) || cs.ProxyAdmin == address(0) || cs.L2OutputOracleProxy == address(0)) {
-            revert("Missing Contract Set for the given block.chainid");
-        }
-        return cs;
-    }
-
-    /// @notice Executes the gnosis safe transaction to delete an L2 Output Root.
-    function run(uint256 _index) external returns (bool) {
-        address _safe = contracts().Safe;
-        address _proxyAdmin = contracts().ProxyAdmin;
-        index = _index;
-        return run(_safe, _proxyAdmin);
-    }
-
-    /// @notice Follow up assertions to ensure that the script ran to completion.
-    function _postCheck() internal view override {
-        L2OutputOracle l2oo = L2OutputOracle(contracts().L2OutputOracleProxy);
-        Types.OutputProposal memory proposal = l2oo.getL2Output(index);
-        require(proposal.l2BlockNumber == 0, "DeleteOutput: Output deletion failed.");
-    }
-
-    /// @notice Test coverage of the script.
-    function test_script_succeeds() external skipWhenNotForking {
-        uint256 _index = getLatestIndex();
-        require(_index != 0, "DeleteOutput: No outputs to delete.");
-
-        index = _index;
-
-        address safe = contracts().Safe;
-        require(safe != address(0), "DeleteOutput: Invalid safe address.");
-
-        address proxyAdmin = contracts().ProxyAdmin;
-        require(proxyAdmin != address(0), "DeleteOutput: Invalid proxy admin address.");
-
-        address[] memory owners = IGnosisSafe(payable(safe)).getOwners();
-
-        for (uint256 i; i < owners.length; i++) {
-            address owner = owners[i];
-            vm.startBroadcast(owner);
-            bool success = _run(safe, proxyAdmin);
-            vm.stopBroadcast();
-
-            if (success) {
-                console.log("tx success");
-                break;
-            }
-        }
-
-        _postCheck();
-    }
-
-    function buildCalldata(address) internal view override returns (bytes memory) {
-        IMulticall3.Call3[] memory calls = new IMulticall3.Call3[](1);
-
-        calls[0] = IMulticall3.Call3({
-            target: oracle,
-            allowFailure: false,
-            callData: abi.encodeCall(L2OutputOracle.deleteL2Outputs, (index))
-        });
-
-        return abi.encodeCall(IMulticall3.aggregate3, (calls));
-    }
-
-    /// @notice Computes the safe transaction hash.
-    function computeSafeTransactionHash(uint256 _index) public returns (bytes32) {
-        ContractSet memory cs = contracts();
-        address _safe = cs.Safe;
-        address _proxyAdmin = cs.ProxyAdmin;
-        index = _index;
-        oracle = cs.L2OutputOracleProxy;
-
-        return _getTransactionHash(_safe, _proxyAdmin);
-    }
-
-    /// @notice Returns the challenger for the L2OutputOracle.
-    function getChallenger() public view returns (address) {
-        L2OutputOracle l2oo = L2OutputOracle(contracts().L2OutputOracleProxy);
-        return l2oo.CHALLENGER();
-    }
-
-    /// @notice Returns the L2 Block Number for the given index.
-    function getL2BlockNumber(uint256 _index) public view returns (uint256) {
-        L2OutputOracle l2oo = L2OutputOracle(contracts().L2OutputOracleProxy);
-        return l2oo.getL2Output(_index).l2BlockNumber;
-    }
-
-    /// @notice Returns the output root for the given index.
-    function getOutputFromIndex(uint256 _index) public view returns (bytes32) {
-        L2OutputOracle l2oo = L2OutputOracle(contracts().L2OutputOracleProxy);
-        return l2oo.getL2Output(_index).outputRoot;
-    }
-
-    /// @notice Returns the output root with the corresponding to the L2 Block Number.
-    function getOutputFromL2BlockNumber(uint256 l2BlockNumber) public view returns (bytes32) {
-        L2OutputOracle l2oo = L2OutputOracle(contracts().L2OutputOracleProxy);
-        return l2oo.getL2OutputAfter(l2BlockNumber).outputRoot;
-    }
-
-    /// @notice Returns the latest l2 output index.
-    function getLatestIndex() public view returns (uint256) {
-        L2OutputOracle l2oo = L2OutputOracle(contracts().L2OutputOracleProxy);
-        return l2oo.latestOutputIndex();
-    }
-}

packages/contracts-bedrock/scripts/outputs/README.md

-## L2 Output Oracle Scripts
-
-A collection of scripts to interact with the L2OutputOracle.
-
-### Output Deletion
-
-[DeleteOutput](./DeleteOutput.s.sol) contains a variety of functions that deal
-with deleting an output root from the [L2OutputOracle](../../contracts/L1/L2OutputOracle.sol).
-
-To delete an output root, the script can be run as follows, where `<L2_OUTPUT_INDEX>` is
-the index of the posted output to delete.
-
-```bash
-$ forge script scripts/output/DeleteOutput.s.sol \
-  --sig "run(uint256)" \
-  --rpc-url $ETH_RPC_URL \
-  --broadcast \
-  --private-key $PRIVATE_KEY \
-  <L2_OUTPUT_INDEX>
-```
-
-To find and confirm the output index, there are a variety of helper functions that
-can be run using the script `--sig` flag, passing the function signatures in as arguments.
-These are outlined below.
-
-### Retrieving an L2 Block Number
-
-The output's associated L2 block number can be retrieved using the following command, where
-`<L2_OUTPUT_INDEX>` is the index of the output in the [L2OutputOracle](../../contracts/L1/L2OutputOracle.sol).
-
-```bash
-$ forge script scripts/output/DeleteOutput.s.sol \
-  --sig "getL2BlockNumber(uint256)" \
-  --rpc-url $ETH_RPC_URL \
-  <L2_OUTPUT_INDEX>
-```
-
-