feat: migration for wstETH market

deployments/mainnet/wsteth/migrations/1737538616_add_teth_collateral.ts

@@ -0,0 +1,139 @@
+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 TETH_ADDRESS = '0xD11c452fc99cF405034ee446803b6F6c1F6d5ED8';
+const TETH_TO_WSTETH_PRICE_FEED = '0x7B2Fb2c667af80Bccc0B2556378352dFDE2be914';
+
+let newPriceFeedAddress: string;
+
+export default migration('1737538616_add_teth_collateral', {
+  async prepare(deploymentManager: DeploymentManager) {
+    const tETHPriceFeed = await deploymentManager.deploy(
+      'tETH:priceFeed',
+      'pricefeeds/ScalingPriceFeed.sol',
+      [
+        TETH_TO_WSTETH_PRICE_FEED,     // tETH / wstETH price feed
+        8,                             // decimals
+      ]
+    );
+    return { tETHPriceFeedAddress: tETHPriceFeed.address };
+  },
+
+  async enact(deploymentManager: DeploymentManager, _, { tETHPriceFeedAddress }) {
+
+    const trace = deploymentManager.tracer();
+
+    const tETH = await deploymentManager.existing(
+      'tETH',
+      TETH_ADDRESS,
+      'mainnet',
+      'contracts/ERC20.sol:ERC20'
+    );
+    const tETHPriceFeed = await deploymentManager.existing(
+      'tETH:priceFeed',
+      tETHPriceFeedAddress,
+      'mainnet'
+    );
+
+    newPriceFeedAddress = tETHPriceFeedAddress;
+
+    const {
+      governor,
+      comet,
+      cometAdmin,
+      configurator,
+    } = await deploymentManager.getContracts();
+
+    const tETHAssetConfig = {
+      asset: tETH.address,
+      priceFeed: tETHPriceFeed.address,
+      decimals: await tETH.decimals(),
+      borrowCollateralFactor: exp(0.88, 18),
+      liquidateCollateralFactor: exp(0.91, 18),
+      liquidationFactor: exp(0.96, 18),
+      supplyCap: exp(5000, 18),
+    };
+
+    const mainnetActions = [
+      // 1. Add tETH as asset
+      {
+        contract: configurator,
+        signature: 'addAsset(address,(address,address,uint8,uint64,uint64,uint64,uint128))',
+        args: [comet.address, tETHAssetConfig],
+      },
+      // 2. Deploy and upgrade to a new version of Comet
+      {
+        contract: cometAdmin,
+        signature: 'deployAndUpgradeTo(address,address)',
+        args: [configurator.address, comet.address],
+      },
+    ];
+
+    const description = '# Add tETH as collateral into cWstETHv3 on Mainnet\n\n## Proposal summary\n\nCompound Growth Program [AlphaGrowth] proposes to add tETH into cWstETHv3 on Ethereum network. This proposal takes the governance steps recommended and necessary to update a Compound III wstETH 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-teth-on-compound/5925/4).\n\nFurther detailed information can be found on the corresponding [proposal pull request](https://github.com/compound-finance/comet/pull/955) and [forum discussion](https://www.comp.xyz/t/listing-teth-on-compound/5925).\n\n\n## Proposal Actions\n\nThe first action adds tETH asset as collateral with corresponding configurations.\n\nThe second action deploys and upgrades Comet to a new version.';
+    // impersonate the proposer
+    await deploymentManager.hre.network.provider.request({
+      method: 'hardhat_impersonateAccount',
+      params: ['0x7e959eab54932f5cfd10239160a7fd6474171318'],
+    });
+    const signer = await deploymentManager.getSigner('0x7e959eab54932f5cfd10239160a7fd6474171318');
+    const txn = await deploymentManager.retry(async () =>
+      trace(
+        await governor.connect(signer).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 tETHAssetIndex = Number(await comet.numAssets()) - 1;
+
+    const tETH = await deploymentManager.existing(
+      'tETH',
+      TETH_ADDRESS,
+      'mainnet',
+      'contracts/ERC20.sol:ERC20'
+    );
+    const tETHAssetConfig = {
+      asset: tETH.address,
+      priceFeed: newPriceFeedAddress,
+      decimals: 18n,
+      borrowCollateralFactor: exp(0.88, 18),
+      liquidateCollateralFactor: exp(0.91, 18),
+      liquidationFactor: exp(0.96, 18),
+      supplyCap: exp(5000, 18),
+    };
+
+    // 1. Compare tETH asset config with Comet and Configurator asset info
+    const cometTETHAssetInfo = await comet.getAssetInfoByAddress(TETH_ADDRESS);
+    expect(tETHAssetIndex).to.be.equal(cometTETHAssetInfo.offset);
+    expect(tETHAssetConfig.asset).to.be.equal(cometTETHAssetInfo.asset);
+    expect(tETHAssetConfig.priceFeed).to.be.equal(cometTETHAssetInfo.priceFeed);
+    expect(exp(1, tETHAssetConfig.decimals)).to.be.equal(cometTETHAssetInfo.scale);
+    expect(tETHAssetConfig.borrowCollateralFactor).to.be.equal(cometTETHAssetInfo.borrowCollateralFactor);
+    expect(tETHAssetConfig.liquidateCollateralFactor).to.be.equal(cometTETHAssetInfo.liquidateCollateralFactor);
+    expect(tETHAssetConfig.liquidationFactor).to.be.equal(cometTETHAssetInfo.liquidationFactor);
+    expect(tETHAssetConfig.supplyCap).to.be.equal(cometTETHAssetInfo.supplyCap);
+
+    const configuratorTETHAssetConfig = (await configurator.getConfiguration(comet.address)).assetConfigs[tETHAssetIndex];
+    expect(tETHAssetConfig.asset).to.be.equal(configuratorTETHAssetConfig.asset);
+    expect(tETHAssetConfig.priceFeed).to.be.equal(configuratorTETHAssetConfig.priceFeed);
+    expect(tETHAssetConfig.decimals).to.be.equal(configuratorTETHAssetConfig.decimals);
+    expect(tETHAssetConfig.borrowCollateralFactor).to.be.equal(configuratorTETHAssetConfig.borrowCollateralFactor);
+    expect(tETHAssetConfig.liquidateCollateralFactor).to.be.equal(configuratorTETHAssetConfig.liquidateCollateralFactor);
+    expect(tETHAssetConfig.liquidationFactor).to.be.equal(configuratorTETHAssetConfig.liquidationFactor);
+    expect(tETHAssetConfig.supplyCap).to.be.equal(configuratorTETHAssetConfig.supplyCap);
+  },
+});

deployments/mainnet/wsteth/relations.ts

@@ -30,5 +30,13 @@ export default {
       }
     }
   },
+  'ERC1967Proxy': {
+    artifact: 'contracts/ERC20.sol:ERC20',
+    delegates: {
+      field: {
+        slot: '0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc'
+      }
+    }
+  },
 };