refactor: move chugsplash into its own package

.changeset/orange-cycles-punch.md

@@ -0,0 +1,6 @@
+---
+'@eth-optimism/contracts': minor
+'@eth-optimism/chugsplash': patch
+---
+
+Move chugsplash tooling into its own package

packages/chugsplash/.gitattributes

@@ -0,0 +1 @@
+*.sol linguist-language=Solidity

packages/chugsplash/.prettierrc.json

@@ -0,0 +1 @@
+../../.prettierrc.json

packages/chugsplash/LICENSE

@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright 2020-2021 Optimism
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

packages/chugsplash/hardhat.config.ts

@@ -0,0 +1,22 @@
+import { HardhatUserConfig } from 'hardhat/config'
+
+import '@nomiclabs/hardhat-ethers'
+import '@nomiclabs/hardhat-waffle'
+
+const config: HardhatUserConfig = {
+  paths: {
+    sources: './test/contracts',
+  },
+  solidity: {
+    version: '0.7.6',
+    settings: {
+      outputSelection: {
+        '*': {
+          '*': ['storageLayout'],
+        },
+      },
+    },
+  },
+}
+
+export default config

packages/chugsplash/package.json

@@ -0,0 +1,40 @@
+{
+  "name": "@eth-optimism/chugsplash",
+  "version": "0.1.0",
+  "main": "dist/index",
+  "files": [
+    "dist/**/*.js"
+  ],
+  "types": "dist/index",
+  "author": "Optimism PBC",
+  "license": "MIT",
+  "scripts": {
+    "build": "tsc -p ./tsconfig.build.json",
+    "test": "npx hardhat test",
+    "lint": "yarn lint:fix && yarn lint:check",
+    "lint:fix": "yarn run lint:fix:typescript",
+    "lint:fix:typescript": "prettier --config .prettierrc.json --write \"hardhat.config.ts\" \"{src,test}/**/*.ts\"",
+    "lint:check": "tslint --format stylish --project .",
+    "clean": "rm -rf ./dist ./tsconfig.build.tsbuildinfo"
+  },
+  "dependencies": {
+    "@eth-optimism/core-utils": "^0.4.3",
+    "@nomiclabs/hardhat-ethers": "^2.0.2",
+    "@nomiclabs/hardhat-waffle": "^2.0.1",
+    "ethereum-waffle": "^3.3.0",
+    "ethers": "^5.2.0",
+    "handlebars": "^4.7.7",
+    "hardhat": "^2.3.0",
+    "lodash": "^4.17.21",
+    "merkletreejs": "^0.2.18",
+    "semver": "^7.3.5"
+  },
+  "devDependencies": {
+    "@types/chai": "^4.2.18",
+    "@types/chai-as-promised": "^7.1.4",
+    "@types/mocha": "^8.2.2",
+    "chai": "^4.3.4",
+    "chai-as-promised": "^7.1.1",
+    "mocha": "^8.4.0"
+  }
+}

packages/chugsplash/src/artifacts.ts

@@ -0,0 +1,16 @@
+/* Imports: External */
+import hre from 'hardhat'
+
+// TODO
+export type ContractArtifact = any
+export type BuildInfo = any
+
+export const getContractArtifact = async (
+  name: string
+): Promise<ContractArtifact> => {
+  return hre.artifacts.readArtifactSync(name)
+}
+
+export const getBuildInfo = async (name: string): Promise<BuildInfo> => {
+  return hre.artifacts.getBuildInfo(name)
+}

packages/contracts/src/chugsplash/config.ts → packages/chugsplash/src/config.ts

@@ -2,6 +2,15 @@
 import * as Handlebars from 'handlebars'
 import { ethers } from 'ethers'
 
+/* Imports: Internal */
+import { computeStorageSlots, getStorageLayout } from './storage'
+import {
+  ChugSplashAction,
+  ChugSplashActionBundle,
+  getChugSplashActionBundle,
+} from './actions'
+import { getContractArtifact } from './artifacts'
+
 type SolidityVariable =
   | boolean
   | string
@@ -107,3 +116,46 @@ export const parseChugSplashConfig = (
     })
   )
 }
+
+/**
+ * Generates a ChugSplash action bundle from a config file.
+ * @param config Config file to convert into a bundle.
+ * @param env Environment variables to inject into the config file.
+ * @returns Action bundle generated from the parsed config file.
+ */
+export const makeActionBundleFromConfig = async (
+  config: ChugSplashConfig,
+  env: {
+    [key: string]: string | number | boolean
+  } = {}
+): Promise<ChugSplashActionBundle> => {
+  // Parse the config to replace any template variables.
+  const parsed = parseChugSplashConfig(config, env)
+
+  const actions: ChugSplashAction[] = []
+  for (const [contractName, contractConfig] of Object.entries(
+    parsed.contracts
+  )) {
+    const artifact = await getContractArtifact(contractConfig.source)
+    const storageLayout = await getStorageLayout(contractConfig.source)
+
+    // Add a SET_CODE action for each contract first.
+    actions.push({
+      target: contractConfig.address,
+      code: artifact.deployedBytecode,
+    })
+
+    // Add SET_STORAGE actions for each storage slot that we want to modify.
+    const slots = computeStorageSlots(storageLayout, contractConfig.variables)
+    for (const slot of slots) {
+      actions.push({
+        target: contractConfig.address,
+        key: slot.key,
+        value: slot.val,
+      })
+    }
+  }
+
+  // Generate a bundle from the list of actions.
+  return getChugSplashActionBundle(actions)
+}

packages/contracts/src/chugsplash/index.ts → packages/chugsplash/src/index.ts

@@ -1,4 +1,4 @@
 export * from './actions'
+export * from './artifacts'
 export * from './config'
 export * from './storage'
-export * from './hardhat-tools'

packages/contracts/src/chugsplash/storage.ts → packages/chugsplash/src/storage.ts

@@ -2,6 +2,7 @@
 import { fromHexString, remove0x } from '@eth-optimism/core-utils'
 import { BigNumber, ethers } from 'ethers'
 import semver from 'semver'
+import { getBuildInfo, getContractArtifact } from './artifacts'
 
 // Represents the JSON objects outputted by the Solidity compiler that describe the structure of
 // state within the contract. See
@@ -66,13 +67,10 @@ const padHexSlotValue = (val: string, offset: number): string => {
  * @return Storage layout object from the compiler output.
  */
 export const getStorageLayout = async (
-  hre: any, //HardhatRuntimeEnvironment,
   name: string
 ): Promise<SolidityStorageLayout> => {
-  const { sourceName, contractName } = hre.artifacts.readArtifactSync(name)
-  const buildInfo = await hre.artifacts.getBuildInfo(
-    `${sourceName}:${contractName}`
-  )
+  const { sourceName, contractName } = await getContractArtifact(name)
+  const buildInfo = await getBuildInfo(`${sourceName}:${contractName}`)
   const output = buildInfo.output.contracts[sourceName][contractName]
 
   if (!semver.satisfies(buildInfo.solcVersion, '>=0.4.x <0.9.x')) {

packages/contracts/test/chugsplash/actions.spec.ts → packages/chugsplash/test/actions.spec.ts

@@ -1,7 +1,7 @@
-import { expect } from '../setup'
+import { expect } from './setup'
 
 /* Imports: External */
-import { ethers } from 'hardhat'
+import hre from 'hardhat'
 import { Contract } from 'ethers'
 import MerkleTree from 'merkletreejs'
 import { fromHexString } from '@eth-optimism/core-utils'
@@ -11,9 +11,11 @@ import {
   getChugSplashActionBundle,
   getActionHash,
   ChugSplashAction,
-} from '../../src'
+} from '../src'
 
 describe('ChugSplash action bundling', () => {
+  const ethers = (hre as any).ethers // as Ethers (???)
+
   let Helper_ChugSplashMock: Contract
   before(async () => {
     Helper_ChugSplashMock = await (