feat: add migration

deployments/mainnet/usdt/migrations/1727361534_add_wusdm_collateral.ts

@@ -0,0 +1,127 @@
+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 WUSDM_ADDRESS = '0x57F5E098CaD7A3D1Eed53991D4d66C45C9AF7812';
+const WUSDM_TO_USDM_PRICE_FEED_ADDRESS = '0x57F5E098CaD7A3D1Eed53991D4d66C45C9AF7812';
+const USDM_TO_USD_PRICE_FEED_ADDRESS = '0x079674468Fee6ab45aBfE986737A440701c49BdB';
+
+let priceFeedAddress: string;
+
+export default migration('1727361534_add_wusdm_collateral', {
+  async prepare(deploymentManager: DeploymentManager) {
+    const _wUSDMPriceFeed = await deploymentManager.deploy(
+      'wUSDM:priceFeed',
+      'pricefeeds/WUSDMPriceFeed.sol',
+      [
+        WUSDM_TO_USDM_PRICE_FEED_ADDRESS, // wUSDM / USDM price feed
+        USDM_TO_USD_PRICE_FEED_ADDRESS,   // USDM / USD price feed
+        8                                 // decimals
+      ]
+    );
+    return { wUSDMPriceFeedAddress: _wUSDMPriceFeed.address };
+  },
+
+  enact: async (deploymentManager: DeploymentManager, _, { wUSDMPriceFeedAddress }) => {
+    const trace = deploymentManager.tracer();
+
+    const wUSDM = await deploymentManager.existing(
+      'wUSDM',
+      WUSDM_ADDRESS,
+      'mainnet',
+      'contracts/ERC20.sol:ERC20'
+    );
+    const wUSDMPriceFeed = await deploymentManager.existing(
+      'wUSDM:priceFeed',
+      wUSDMPriceFeedAddress,
+      'mainnet'
+    );
+    priceFeedAddress = wUSDMPriceFeed.address;
+    const {
+      governor,
+      comet,
+      cometAdmin,
+      configurator
+    } = await deploymentManager.getContracts();
+
+    const newAssetConfig = {
+      asset: wUSDM.address,
+      priceFeed: wUSDMPriceFeed.address,
+      decimals: await wUSDM.decimals(),
+      borrowCollateralFactor: exp(0.88, 18),
+      liquidateCollateralFactor: exp(0.90, 18),
+      liquidationFactor: exp(0.95, 18),
+      supplyCap: exp(6_500_000, 18),
+    };
+
+    const mainnetActions = [
+      // 1. Add wUSDM as asset
+      {
+        contract: configurator,
+        signature: 'addAsset(address,(address,address,uint8,uint64,uint64,uint64,uint128))',
+        args: [comet.address, newAssetConfig],
+      },
+      // 2. Deploy and upgrade to a new version of Comet
+      {
+        contract: cometAdmin,
+        signature: 'deployAndUpgradeTo(address,address)',
+        args: [configurator.address, comet.address],
+      },
+    ];
+
+    const description = '# Add wUSDM as collateral into cUSDTv3 on Ethereum\n\n## Proposal summary\n\nCompound Growth Program [AlphaGrowth] proposes to add wUSDM into cUSDTv3 on Ethereum network. This proposal takes the governance steps recommended and necessary to update a Compound III USDT 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 off of the [recommendations from Gauntlet](https://www.comp.xyz/t/list-wusdm-as-a-collateral-on-usdc-usdt-markets-on-arbitrum-and-ethereum/5590/3).\n\nFurther detailed information can be found on the corresponding [proposal pull request](https://github.com/compound-finance/comet/pull/930) and [forum discussion](https://www.comp.xyz/t/list-wusdm-as-a-collateral-on-usdc-usdt-markets-on-arbitrum-and-ethereum/5590).\n\n\n## Proposal Actions\n\nThe first proposal action adds wUSDM 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 wUSDMAssetIndex = Number(await comet.numAssets()) - 1;
+
+    const wUSDMAssetConfig = {
+      asset: WUSDM_ADDRESS,
+      priceFeed: priceFeedAddress,
+      decimals: 18,
+      borrowCollateralFactor: exp(0.88, 18),
+      liquidateCollateralFactor: exp(0.90, 18),
+      liquidationFactor: exp(0.95, 18),
+      supplyCap: exp(6_500_000, 18),
+    };
+
+    // 1. Compare proposed asset config with Comet asset info
+    const wUSDMAssetInfo = await comet.getAssetInfoByAddress(WUSDM_ADDRESS);
+    expect(wUSDMAssetIndex).to.be.equal(wUSDMAssetInfo.offset);
+    expect(wUSDMAssetConfig.asset).to.be.equal(wUSDMAssetInfo.asset);
+    expect(wUSDMAssetConfig.priceFeed).to.be.equal(wUSDMAssetInfo.priceFeed);
+    expect(exp(1, wUSDMAssetConfig.decimals)).to.be.equal(wUSDMAssetInfo.scale);
+    expect(wUSDMAssetConfig.borrowCollateralFactor).to.be.equal(wUSDMAssetInfo.borrowCollateralFactor);
+    expect(wUSDMAssetConfig.liquidateCollateralFactor).to.be.equal(wUSDMAssetInfo.liquidateCollateralFactor);
+    expect(wUSDMAssetConfig.liquidationFactor).to.be.equal(wUSDMAssetInfo.liquidationFactor);
+    expect(wUSDMAssetConfig.supplyCap).to.be.equal(wUSDMAssetInfo.supplyCap);
+
+    // 2. Compare proposed asset config with Configurator asset config
+    const configuratorWUSDMAssetConfig = (await configurator.getConfiguration(comet.address)).assetConfigs[wUSDMAssetIndex];
+    expect(wUSDMAssetConfig.asset).to.be.equal(configuratorWUSDMAssetConfig.asset);
+    expect(wUSDMAssetConfig.priceFeed).to.be.equal(configuratorWUSDMAssetConfig.priceFeed);
+    expect(wUSDMAssetConfig.decimals).to.be.equal(configuratorWUSDMAssetConfig.decimals);
+    expect(wUSDMAssetConfig.borrowCollateralFactor).to.be.equal(configuratorWUSDMAssetConfig.borrowCollateralFactor);
+    expect(wUSDMAssetConfig.liquidateCollateralFactor).to.be.equal(configuratorWUSDMAssetConfig.liquidateCollateralFactor);
+    expect(wUSDMAssetConfig.liquidationFactor).to.be.equal(configuratorWUSDMAssetConfig.liquidationFactor);
+    expect(wUSDMAssetConfig.supplyCap).to.be.equal(configuratorWUSDMAssetConfig.supplyCap);
+  },
+});

deployments/mainnet/usdt/relations.ts

@@ -19,5 +19,13 @@ export default {
   },
   'AppProxyUpgradeable': {
     artifact: 'contracts/ERC20.sol:ERC20',
-  }
+  },
+  'ERC1967Proxy': {
+    artifact: 'contracts/ERC20.sol:ERC20',
+    delegates: {
+      field: {
+        slot: '0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc'
+      }
+    }
+  },
 };

scenario/SupplyScenario.ts

@@ -300,7 +300,7 @@ scenario(
     const utilization = await comet.getUtilization();
     const borrowRate = (await comet.getBorrowRate(utilization)).toBigInt();
 
-    expectApproximately(await albert.getCometBaseBalance(), -999n * scale, getInterest(999n * scale, borrowRate, 1n) + 1n);
+    expectApproximately(await albert.getCometBaseBalance(), -999n * scale, getInterest(999n * scale, borrowRate, 1n) + 2n);
 
     // Albert repays 1000 units of base borrow
     await baseAsset.approve(albert, comet.address);

src/deploy/index.ts

@@ -89,7 +89,8 @@ export const WHALES = {
     '0x2775b1c75658be0f640272ccb8c72ac986009e38',
     '0x1a9c8182c09f50c8318d769245bea52c32be35bc',
     '0x3c22ec75ea5D745c78fc84762F7F1E6D82a2c5BF',
-    '0x3d9819210a31b4961b30ef54be2aed79b9c9cd3b'
+    '0x3d9819210a31b4961b30ef54be2aed79b9c9cd3b',
+    '0x426c4966fC76Bf782A663203c023578B744e4C5E', // wUSDM whale
   ],
   polygon: [
     '0x2093b4281990a568c9d588b8bce3bfd7a1557ebd', // WETH whale