Add sfrxETH as collateral to WETH market on Mainnet

contracts/test/MockOracle.sol

@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: BUSL-1.1
+pragma solidity 0.8.15;
+
+import "../vendor/@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";
+
+/**
+ * @title Mock oracle
+ * @notice Mock oracle to test the scaling price feed with updated update time
+ * @author Compound
+ */
+contract MockOracle {
+
+    /// @notice Number of decimals for returned prices
+    uint8 public immutable decimals;
+
+    /// @notice Underlying Chainlink price feed where prices are fetched from
+    address public immutable underlyingPriceFeed;
+
+    /**
+     * @notice Construct a new scaling price feed
+     * @param underlyingPriceFeed_ The address of the underlying price feed to fetch prices from
+     **/
+    constructor(address underlyingPriceFeed_) {
+        underlyingPriceFeed = underlyingPriceFeed_;
+        decimals = AggregatorV3Interface(underlyingPriceFeed_).decimals();
+    }
+
+    /**
+     * @notice Price for the latest round
+     * @return roundId Round id from the underlying price feed
+     * @return answer Latest price for the asset in terms of ETH
+     * @return startedAt Timestamp when the round was started; passed on from underlying price feed
+     * @return updatedAt Current timestamp
+     * @return answeredInRound Round id in which the answer was computed; passed on from underlying price feed
+     **/
+    function latestRoundData() external view returns (
+        uint80 roundId,
+        int256 answer,
+        uint256 startedAt,
+        uint256 updatedAt,
+        uint80 answeredInRound
+    ) {
+        (uint80 roundId_, int256 price, uint256 startedAt_, , uint80 answeredInRound_) = AggregatorV3Interface(underlyingPriceFeed).latestRoundData();
+        return (roundId_, price, startedAt_, block.timestamp, answeredInRound_);
+    }
+}

deployments/mainnet/weth/migrations/1720779152_add_rsweth_as_collateral.ts

@@ -0,0 +1,156 @@
+import { expect } from 'chai';
+import { DeploymentManager } from '../../../../plugins/deployment_manager/DeploymentManager';
+import { migration } from '../../../../plugins/deployment_manager/Migration';
+import { exp, proposal } from '../../../../src/deploy';
+
+const SFRXETH_ADDRESS = '0xac3E018457B222d93114458476f3E3416Abbe38F';
+const SFRXETH_PRICE_FEED_ADDRESS = '0xB9af7723CfBd4469A7E8aa60B93428D648Bda99d';
+let newPriceFeedAddress: string;
+
+export default migration('1720779152_add_sfrxeth_as_collateral', {
+  async prepare(deploymentManager: DeploymentManager) {
+    const _sfrxETHScalingPriceFeed = await deploymentManager.deploy(
+      'sfrxETH:priceFeed',
+      'pricefeeds/ScalingPriceFeed.sol',
+      [
+        SFRXETH_PRICE_FEED_ADDRESS, // sfrxETH / ETH price feed
+        8                           // decimals
+      ]
+    );
+    return { sfrxETHScalingPriceFeed: _sfrxETHScalingPriceFeed.address };
+  },
+
+  async enact(deploymentManager: DeploymentManager, _, { sfrxETHScalingPriceFeed }) {
+
+    const trace = deploymentManager.tracer();
+
+    const sfrxETH = await deploymentManager.existing(
+      'sfrxETH',
+      SFRXETH_ADDRESS,
+      'mainnet',
+      'contracts/ERC20.sol:ERC20'
+    );
+    const sfrxEthPricefeed = await deploymentManager.existing(
+      'sfrxETH:priceFeed',
+      sfrxETHScalingPriceFeed,
+      'mainnet'
+    );
+
+    newPriceFeedAddress = sfrxEthPricefeed.address;
+
+    const {
+      governor,
+      comet,
+      cometAdmin,
+      configurator,
+    } = await deploymentManager.getContracts();
+
+    const sfrxETHAssetConfig = {
+      asset: sfrxETH.address,
+      priceFeed: sfrxEthPricefeed.address,
+      decimals: await sfrxETH.decimals(),
+      borrowCollateralFactor: exp(0.80, 18),
+      liquidateCollateralFactor: exp(0.85, 18),
+      liquidationFactor: exp(0.9, 18),
+      supplyCap: exp(5_000, 18), 
+    };
+
+    const mainnetActions = [
+      // 1. Add sfrxETH as asset
+      {
+        contract: configurator,
+        signature: 'addAsset(address,(address,address,uint8,uint64,uint64,uint64,uint128))',
+        args: [comet.address, sfrxETHAssetConfig],
+      },
+      // 2. Deploy and upgrade to a new version of Comet
+      {
+        contract: cometAdmin,
+        signature: 'deployAndUpgradeTo(address,address)',
+        args: [configurator.address, comet.address],
+      },
+    ];
+
+    const description = '# Add sfrxETH as collateral into cWETHv3 on Mainnet\n\n## Proposal summary\n\nCompound Growth Program [AlphaGrowth] proposes to add sfrxETH into cWETHv3 on Ethereum network. This proposal takes the governance steps recommended and necessary to update a Compound III WETH market on Ethereum. Simulations have confirmed the market’s readiness, as much as possible, using the [Comet scenario suite](https://github.com/compound-finance/comet/tree/main/scenario). The new parameters include setting the risk parameters based on the [recommendations from Gauntlet](https://www.comp.xyz/t/listing-ethx-on-compound/4730/21).\n\nFurther detailed information can be found on the corresponding [proposal pull request](https://github.com/compound-finance/comet/pull/886) and [forum discussion](https://www.comp.xyz/t/listing-ethx-on-compound/4730).\n\n\n## Proposal Actions\n\nThe first proposal action adds sfrxETH asset as collateral with corresponding configurations.\n\nThe second action deploys and upgrades Comet to a new version.';
+    const txn = await deploymentManager.retry(async () =>
+      trace(
+        await governor.propose(...(await proposal(mainnetActions, description)))
+      )
+    );
+
+    const event = txn.events.find(
+      (event) => event.event === 'ProposalCreated'
+    );
+    const [proposalId] = event.args;
+    trace(`Created proposal ${proposalId}.`);
+  },
+
+  async enacted(): Promise<boolean> {
+    return false;
+  }, 
+
+  async verify(deploymentManager: DeploymentManager) {
+    const { comet, configurator } = await deploymentManager.getContracts();
+
+    const sfrxETHAssetIndex = Number(await comet.numAssets()) - 1;
+
+    const sfrxETH = await deploymentManager.existing(
+      'sfrxETH',
+      SFRXETH_ADDRESS,
+      'mainnet',
+      'contracts/ERC20.sol:ERC20'
+    );
+
+    const sfrxETHAssetConfig = {
+      asset: sfrxETH.address,
+      priceFeed: newPriceFeedAddress,
+      decimals: await sfrxETH.decimals(),
+      borrowCollateralFactor: exp(0.80, 18),
+      liquidateCollateralFactor: exp(0.85, 18),
+      liquidationFactor: exp(0.9, 18),
+      supplyCap: exp(5_000, 18),
+    };
+
+    // 1. Compare sfrxETH asset config with Comet and Configurator asset info
+    const cometSfrxETHAssetInfo = await comet.getAssetInfoByAddress(
+      SFRXETH_ADDRESS
+    );
+    expect(sfrxETHAssetIndex).to.be.equal(cometSfrxETHAssetInfo.offset);
+    expect(sfrxETHAssetConfig.asset).to.be.equal(cometSfrxETHAssetInfo.asset);
+    expect(exp(1, sfrxETHAssetConfig.decimals)).to.be.equal(
+      cometSfrxETHAssetInfo.scale
+    );
+    expect(sfrxETHAssetConfig.borrowCollateralFactor).to.be.equal(
+      cometSfrxETHAssetInfo.borrowCollateralFactor
+    );
+    expect(sfrxETHAssetConfig.liquidateCollateralFactor).to.be.equal(
+      cometSfrxETHAssetInfo.liquidateCollateralFactor
+    );
+    expect(sfrxETHAssetConfig.liquidationFactor).to.be.equal(
+      cometSfrxETHAssetInfo.liquidationFactor
+    );
+    expect(sfrxETHAssetConfig.supplyCap).to.be.equal(
+      cometSfrxETHAssetInfo.supplyCap
+    );
+    const configuratorSfrxETHAssetConfig = (
+      await configurator.getConfiguration(comet.address)
+    ).assetConfigs[sfrxETHAssetIndex];
+    expect(sfrxETHAssetConfig.asset).to.be.equal(
+      configuratorSfrxETHAssetConfig.asset
+    );
+    expect(sfrxETHAssetConfig.decimals).to.be.equal(
+      configuratorSfrxETHAssetConfig.decimals
+    );
+    expect(sfrxETHAssetConfig.borrowCollateralFactor).to.be.equal(
+      configuratorSfrxETHAssetConfig.borrowCollateralFactor
+    );
+    expect(sfrxETHAssetConfig.liquidateCollateralFactor).to.be.equal(
+      configuratorSfrxETHAssetConfig.liquidateCollateralFactor
+    );
+    expect(sfrxETHAssetConfig.liquidationFactor).to.be.equal(
+      configuratorSfrxETHAssetConfig.liquidationFactor
+    );
+    expect(sfrxETHAssetConfig.supplyCap).to.be.equal(
+      configuratorSfrxETHAssetConfig.supplyCap
+    );
+  },
+});

scenario/utils/index.ts

@@ -327,6 +327,36 @@ export async function fetchLogs(
   }
 }
 
+async function redeployRenzoOracle(dm: DeploymentManager){
+  if(dm.network === 'mainnet' && dm.deployment === 'weth') {
+    // renzo admin 	0xD1e6626310fD54Eceb5b9a51dA2eC329D6D4B68A
+    const renzoOracle = new Contract(
+      '0x5a12796f7e7EBbbc8a402667d266d2e65A814042',
+      [
+        'function setOracleAddress(address _token, address _oracleAddress) external',
+      ],
+      dm.hre.ethers.provider
+    );
+
+    const admin = await impersonateAddress(dm, '0xD1e6626310fD54Eceb5b9a51dA2eC329D6D4B68A');
+    // set balance
+    await dm.hre.ethers.provider.send('hardhat_setBalance', [
+      admin.address,
+      dm.hre.ethers.utils.hexStripZeros(dm.hre.ethers.utils.parseUnits('100', 'ether').toHexString()),
+    ]);
+
+    const newOracle = await dm.deploy(
+      'stETH:Oracle',
+      'test/MockOracle.sol',
+      [
+        '0x86392dC19c0b719886221c78AB11eb8Cf5c52812',    // stETH / ETH oracle address
+      ]
+    );
+
+    await renzoOracle.connect(admin).setOracleAddress('0xae7ab96520DE3A18E5e111B5EaAb095312D7fE84', newOracle.address);
+  }
+}
+
 export async function executeOpenProposal(
   dm: DeploymentManager,
   { id, startBlock, endBlock }: OpenProposal
@@ -370,6 +400,7 @@ export async function executeOpenProposal(
     await setNextBaseFeeToZero(dm);
     await governor.execute(id, { gasPrice: 0, gasLimit: 12000000 });
   }
+  await redeployRenzoOracle(dm);
 }
 
 // Instantly executes some actions through the governance proposal process