feat: change price feed

compound-finance · Sep 17, 2024 · feba30d · feba30d
1 parent d19607c
commit feba30d
Showing 1 changed file with 19 additions and 6 deletions.
diff --git a/deployments/mainnet/usdc/migrations/1726215532_add_cbbtc_as_collateral.ts b/deployments/mainnet/usdc/migrations/1726215532_add_cbbtc_as_collateral.ts
@@ -4,15 +4,24 @@ import { migration } from '../../../../plugins/deployment_manager/Migration';
 import { exp, proposal } from '../../../../src/deploy';
 
 const CBBTC_ADDRESS = '0xcbB7C0000aB88B473b1f5aFd9ef808440eed33Bf';
+const CBBTC_USD_PRICE_FEED = '0x2665701293fCbEB223D11A08D826563EDcCE423A';
 
 let priceFeedAddress: string;
 
 export default migration('1726215532_add_cbbtc_as_collateral', {
-  async prepare() {
-    return {};
+  async prepare(deploymentManager: DeploymentManager) {
+    const _cbBTCPriceFeed = await deploymentManager.deploy(
+      'cbBTC:priceFeed',
+      'pricefeeds/ScalingPriceFeed.sol',
+      [
+        CBBTC_USD_PRICE_FEED, // cbBTC / USD price feed
+        8                     // decimals
+      ]
+    );
+    return { cbBTCPriceFeedAddress: _cbBTCPriceFeed.address };
   },
 
-  enact: async (deploymentManager: DeploymentManager) => {
+  enact: async (deploymentManager: DeploymentManager, _, { cbBTCPriceFeedAddress }) => {
     const trace = deploymentManager.tracer();
 
     const cbBTC = await deploymentManager.existing(
@@ -21,8 +30,12 @@ export default migration('1726215532_add_cbbtc_as_collateral', {
       'mainnet',
       'contracts/ERC20.sol:ERC20'
     );
-    const cbBTCPricefeed = await deploymentManager.fromDep('WBTC:priceFeed', 'mainnet', 'usdc');
-    priceFeedAddress = cbBTCPricefeed.address;
+    const cbBTCPriceFeed = await deploymentManager.existing(
+      'cbBTC:priceFeed',
+      cbBTCPriceFeedAddress,
+      'mainnet'
+    );
+    priceFeedAddress = cbBTCPriceFeed.address;
     const {
       governor,
       comet,
@@ -32,7 +45,7 @@ export default migration('1726215532_add_cbbtc_as_collateral', {
 
     const newAssetConfig = {
       asset: cbBTC.address,
-      priceFeed: cbBTCPricefeed.address,
+      priceFeed: cbBTCPriceFeed.address,
       decimals: await cbBTC.decimals(),
       borrowCollateralFactor: exp(0.8, 18),
       liquidateCollateralFactor: exp(0.85, 18),