feat: set gpo task

Creates a task that can set the owner of any contract that is `Ownable`.
It defaults to attempting to set the address of the `OVM_GasPriceOracle`
on L2. The following config options must be set:

- `CONTRACTS_RPC_URL`
- `CONTRACTS_DEPLOYER_KEY`

It can be invoked like so:

```
$ npx hardhat set-owner --owner 0x..
```

On L2 networks that do not enforce transaction fees, the
`--transaction-gas-price 0` config option may be used for
convenience.

This script also supports Ledger with the `--use-ledger` flag.
It defaults to deriving a key at the `ethers.utils.defaultPath`.

.changeset/thirty-eagles-reply.md

+---
+'@eth-optimism/contracts': patch
+---
+
+Add a task for setting the gas price oracle

packages/contracts/hardhat.config.ts

@@ -15,6 +15,7 @@ import '@typechain/hardhat'
 import '@eth-optimism/hardhat-ovm'
 import './tasks/deploy'
 import './tasks/l2-gasprice'
+import './tasks/set-owner'
 import 'hardhat-gas-reporter'
 
 // Load environment variables from .env

packages/contracts/package.json

@@ -53,6 +53,7 @@
     "@ethersproject/abstract-provider": "^5.0.8",
     "@ethersproject/abstract-signer": "^5.1.0",
     "@ethersproject/contracts": "^5.0.5",
+    "@ethersproject/hardware-wallets": "^5.4.0",
     "glob": "^7.1.6"
   },
   "devDependencies": {
@@ -76,19 +77,19 @@
     "@types/yargs": "^16.0.1",
     "@typescript-eslint/eslint-plugin": "^4.26.0",
     "@typescript-eslint/parser": "^4.26.0",
+    "babel-eslint": "^10.1.0",
     "buffer-xor": "^2.0.2",
     "chai": "^4.3.1",
     "copyfiles": "^2.3.0",
     "directory-tree": "^2.2.7",
     "dotenv": "^8.2.0",
-    "babel-eslint": "^10.1.0",
     "eslint": "^7.27.0",
-    "eslint-plugin-prettier": "^3.4.0",
     "eslint-config-prettier": "^8.3.0",
     "eslint-plugin-ban": "^1.5.2",
     "eslint-plugin-import": "^2.23.4",
     "eslint-plugin-jsdoc": "^35.1.2",
     "eslint-plugin-prefer-arrow": "^1.2.3",
+    "eslint-plugin-prettier": "^3.4.0",
     "eslint-plugin-react": "^7.24.0",
     "eslint-plugin-unicorn": "^32.0.1",
     "ethereum-waffle": "^3.3.0",
@@ -97,21 +98,21 @@
     "hardhat": "^2.2.1",
     "hardhat-deploy": "^0.7.4",
     "hardhat-gas-reporter": "^1.0.4",
+    "lint-staged": "11.0.0",
     "lodash": "^4.17.20",
     "merkle-patricia-tree": "^4.0.0",
     "merkletreejs": "^0.2.12",
     "mkdirp": "^1.0.4",
     "mocha": "^8.3.0",
     "prettier": "^2.2.1",
-    "lint-staged": "11.0.0",
     "random-bytes-seed": "^1.0.3",
     "rlp": "^2.2.6",
     "solhint": "^3.3.6",
     "solidity-coverage": "^0.7.16",
     "ts-generator": "0.0.8",
     "ts-node": "^9.1.1",
-    "typescript": "^4.2.3",
     "typechain": "2.0.0",
+    "typescript": "^4.2.3",
     "yargs": "^16.2.0"
   },
   "peerDependencies": {

packages/contracts/tasks/set-owner.ts

+/* Imports: External */
+import { ethers } from 'ethers'
+import { LedgerSigner } from '@ethersproject/hardware-wallets'
+import { task } from 'hardhat/config'
+import * as types from 'hardhat/internal/core/params/argumentTypes'
+
+import { predeploys } from '../src/predeploys'
+import { getContractFactory } from '../src/contract-defs'
+
+task('set-owner')
+  .addParam('owner', 'the new oracle address', 0, types.string)
+  .addOptionalParam('transactionGasPrice', 'tx.gasPrice', undefined, types.int)
+  .addOptionalParam(
+    'useLedger',
+    'use a ledger for signing',
+    false,
+    types.boolean
+  )
+  .addOptionalParam(
+    'ledgerPath',
+    'ledger key derivation path',
+    ethers.utils.defaultPath,
+    types.string
+  )
+  .addOptionalParam(
+    'contractsRpcUrl',
+    'Sequencer HTTP Endpoint',
+    process.env.CONTRACTS_RPC_URL,
+    types.string
+  )
+  .addOptionalParam(
+    'contractsDeployerKey',
+    'Private Key',
+    process.env.CONTRACTS_DEPLOYER_KEY,
+    types.string
+  )
+  .addOptionalParam(
+    'contractAddress',
+    'Address of Ownable contract',
+    predeploys.OVM_GasPriceOracle,
+    types.string
+  )
+  .setAction(async (args, hre: any, runSuper) => {
+    const provider = new ethers.providers.JsonRpcProvider(args.contractsRpcUrl)
+    let signer: ethers.Signer
+    if (!args.useLedger) {
+      signer = new ethers.Wallet(args.contractsDeployerKey).connect(provider)
+    } else {
+      signer = new LedgerSigner(provider, 'default', args.ledgerPath)
+    }
+
+    const Ownable = getContractFactory('Ownable')
+      .attach(args.contractAddress)
+      .connect(provider)
+
+    const addr = await signer.getAddress()
+    console.log(`Using signer ${addr}`)
+    const owner = await Ownable.callStatic.owner()
+    if (owner !== addr) {
+      throw new Error(`Incorrect key. Owner ${owner}, Signer ${addr}`)
+    }
+
+    console.log(`Owner is currently ${owner.toString()}`)
+    console.log(`Setting owner to ${args.owner}`)
+
+    const tx = await Ownable.connect(signer).transferOwnership(
+      args.owner,
+      { gasPrice: args.transactionGasPrice }
+    )
+
+    const receipt = await tx.wait()
+    console.log(`Success - ${receipt.transactionHash}`)
+  })

yarn.lock

@@ -753,7 +753,7 @@
     "@ethersproject/properties" "^5.4.0"
     "@ethersproject/transactions" "^5.4.0"
 
-"@ethersproject/hardware-wallets@^5.0.8":
+"@ethersproject/hardware-wallets@^5.0.8", "@ethersproject/hardware-wallets@^5.4.0":
   version "5.4.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/hardware-wallets/-/hardware-wallets-5.4.0.tgz#bce275b395e26b6f50481095331157614490a473"
   integrity sha512-Ea4ymm4etZoSWy93OcEGZkuVqyYdl/RjMlaXY6yQIYjsGi75sm4apbTiBA8DA9uajkv1FVakJZEBBTaVGgnBLA==