* upgrade to ethereumjs-config 2.0

* switch from coveralls to codecov
* fix lint errors

.eslintrc.js

@@ -0,0 +1,6 @@
+module.exports = {
+  extends: '@ethereumjs/eslint-config-defaults',
+  env: {
+    mocha: true
+  }
+}

.github/workflows/build.yml

@@ -24,7 +24,7 @@ jobs:
       - run: npm install
       - run: npm run test
 
-      - name: Upload coverage to Coveralls
-        uses: coverallsapp/github-action@master
+      - uses: codecov/codecov-action@v1
+        if: ${{ matrix.node-version == 12 }}
         with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
+          file: ./coverage/lcov.info

README.md

@@ -1,8 +1,8 @@
 # SYNOPSIS
 
-[![NPM Package](https://img.shields.io/npm/v/ethereumjs-util.svg)](https://www.npmjs.org/package/ethereumjs-util)
-[![Actions Status](https://github.com/ethereumjs/ethereumjs-util/workflows/Build/badge.svg)](https://github.com/ethereumjs/ethereumjs-util/actions)
-[![Coverage Status](https://img.shields.io/coveralls/ethereumjs/ethereumjs-util.svg)](https://coveralls.io/r/ethereumjs/ethereumjs-util)
+[![NPM Status][npm-badge]][npm-link]
+[![Actions Status][actions-badge]][actions-link]
+[![Coverage Status][coverage-badge]][coverage-link]
 [![Discord][discord-badge]][discord-link]
 
 A collection of utility functions for Ethereum. It can be used in Node.js and in the browser with [browserify](http://browserify.org/).
@@ -71,7 +71,7 @@ The following methods are available provided by [ethjs-util](https://github.com/
 - toAscii
 - getKeys
 
-Import can be done directly by function name analogous to the build-in function import:
+They can be imported by name:
 
 ```js
 import { intToHex, stripHexPrefix } from 'ethereumjs-util'
@@ -94,5 +94,11 @@ If you want to join for work or do improvements on the libraries have a look at
 
 MPL-2.0
 
+[npm-badge]: https://img.shields.io/npm/v/ethereumjs-util.svg
+[npm-link]: https://www.npmjs.org/package/ethereumjs-util
+[actions-badge]: https://github.com/ethereumjs/ethereumjs-util/workflows/Build/badge.svg
+[actions-link]: https://github.com/ethereumjs/ethereumjs-util/actions
+[coverage-badge]: https://codecov.io/gh/ethereumjs/ethereumjs-util/branch/master/graph/badge.svg
+[coverage-link]: https://codecov.io/gh/ethereumjs/ethereumjs-util
 [discord-badge]: https://img.shields.io/static/v1?logo=discord&label=discord&message=Join&color=blue
 [discord-link]: https://discord.gg/TNwARpR

codecov.yml

@@ -0,0 +1,7 @@
+coverage:
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 2%
+        base: auto

package.json

@@ -11,19 +11,15 @@
     "dist"
   ],
   "scripts": {
-    "build": "ethereumjs-config-build",
+    "build": "ethereumjs-config-ts-build",
     "prepublishOnly": "npm run test && npm run build",
     "docs:build": "npx typedoc --options typedoc.js",
-    "format": "ethereumjs-config-format",
-    "format:fix": "ethereumjs-config-format-fix",
     "lint": "ethereumjs-config-lint",
     "lint:fix": "ethereumjs-config-lint-fix",
     "test": "npm run lint && npm run test:node && npm run test:browser",
     "test:browser": "karma start karma.conf.js",
     "test:node": "nyc --reporter=lcov mocha --require ts-node/register 'test/*.spec.ts'",
-    "tsc": "ethereumjs-config-tsc",
-    "tslint": "ethereumjs-config-tslint",
-    "tslint:fix": "ethereumjs-config-tslint-fix"
+    "tsc": "ethereumjs-config-tsc"
   },
   "husky": {
     "hooks": {
@@ -89,18 +85,19 @@
   },
   "homepage": "https://github.com/ethereumjs/ethereumjs-util",
   "dependencies": {
-    "@types/bn.js": "^4.11.3",
+    "@types/bn.js": "^5.1.0",
     "bn.js": "^5.1.2",
     "create-hash": "^1.1.2",
     "ethereum-cryptography": "^0.1.3",
     "ethjs-util": "0.1.6",
     "rlp": "^2.2.4"
   },
   "devDependencies": {
-    "@ethereumjs/config-prettier": "^1.1.0",
-    "@ethereumjs/config-tsc": "^1.1.0",
-    "@ethereumjs/config-tslint": "^1.1.0",
-    "@types/mocha": "^5.2.7",
+    "@ethereumjs/config-coverage": "^2.0.0",
+    "@ethereumjs/config-typescript": "^2.0.0",
+    "@ethereumjs/eslint-config-defaults": "^2.0.0",
+    "@types/assert": "^1.5.4",
+    "@types/mocha": "^8.2.0",
     "@types/node": "^11.9.0",
     "@types/secp256k1": "^4.0.1",
     "husky": "^2.1.0",
@@ -109,14 +106,12 @@
     "karma-firefox-launcher": "^1.0.0",
     "karma-mocha": "^2.0.0",
     "karma-typescript": "^4.1.1",
-    "mocha": "^6.0.0",
+    "mocha": "^8.2.1",
     "nyc": "^15.0.0",
     "prettier": "^1.15.3",
     "ts-node": "^8.6.2",
-    "tslint": "^5.12.0",
     "typedoc": "next",
     "typedoc-plugin-markdown": "^2.2.16",
-    "typescript": "^3.8.3",
-    "typestrict": "^1.0.2"
+    "typescript": "^3.8.3"
   }
 }

prettier.config.js

@@ -1 +1 @@
-module.exports = require('@ethereumjs/config-prettier')
+module.exports = require('@ethereumjs/eslint-config-defaults/prettier.config.js')

src/account.ts

@@ -1,5 +1,5 @@
-import * as assert from 'assert'
-import * as BN from 'bn.js'
+import assert from 'assert'
+import BN from 'bn.js'
 import * as rlp from 'rlp'
 import { stripHexPrefix } from 'ethjs-util'
 import { KECCAK256_RLP, KECCAK256_NULL } from './constants'
@@ -12,7 +12,7 @@ const {
   privateKeyVerify,
   publicKeyCreate,
   publicKeyVerify,
-  publicKeyConvert,
+  publicKeyConvert
 } = require('ethereum-cryptography/secp256k1')
 
 export interface AccountData {
@@ -35,7 +35,7 @@ export class Account {
       nonce ? new BN(toBuffer(nonce)) : undefined,
       balance ? new BN(toBuffer(balance)) : undefined,
       stateRoot ? toBuffer(stateRoot) : undefined,
-      codeHash ? toBuffer(codeHash) : undefined,
+      codeHash ? toBuffer(codeHash) : undefined
     )
   }
 
@@ -52,12 +52,7 @@ export class Account {
   public static fromValuesArray(values: Buffer[]) {
     const [nonce, balance, stateRoot, codeHash] = values
 
-    return new Account(
-      nonce ? new BN(nonce) : undefined,
-      balance ? new BN(balance) : undefined,
-      stateRoot,
-      codeHash,
-    )
+    return new Account(new BN(nonce), new BN(balance), stateRoot, codeHash)
   }
 
   /**
@@ -68,7 +63,7 @@ export class Account {
     nonce = new BN(0),
     balance = new BN(0),
     stateRoot = KECCAK256_RLP,
-    codeHash = KECCAK256_NULL,
+    codeHash = KECCAK256_NULL
   ) {
     this.nonce = nonce
     this.balance = balance
@@ -169,7 +164,7 @@ export const toChecksumAddress = function(hexAddress: string, eip1191ChainId?: n
  */
 export const isValidChecksumAddress = function(
   hexAddress: string,
-  eip1191ChainId?: number,
+  eip1191ChainId?: number
 ): boolean {
   return isValidAddress(hexAddress) && toChecksumAddress(hexAddress, eip1191ChainId) === hexAddress
 }
@@ -209,7 +204,7 @@ export const generateAddress2 = function(from: Buffer, salt: Buffer, initCode: B
   assert(salt.length === 32)
 
   const address = keccak256(
-    Buffer.concat([Buffer.from('ff', 'hex'), from, salt, keccak256(initCode)]),
+    Buffer.concat([Buffer.from('ff', 'hex'), from, salt, keccak256(initCode)])
   )
 
   return address.slice(-20)
@@ -259,14 +254,6 @@ export const pubToAddress = function(pubKey: Buffer, sanitize: boolean = false):
 }
 export const publicToAddress = pubToAddress
 
-/**
- * Returns the ethereum address of a given private key.
- * @param privateKey A private key must be 256 bits wide
- */
-export const privateToAddress = function(privateKey: Buffer): Buffer {
-  return publicToAddress(privateToPublic(privateKey))
-}
-
 /**
  * Returns the ethereum public key of a given private key.
  * @param privateKey A private key must be 256 bits wide
@@ -277,6 +264,14 @@ export const privateToPublic = function(privateKey: Buffer): Buffer {
   return Buffer.from(publicKeyCreate(privateKey, false)).slice(1)
 }
 
+/**
+ * Returns the ethereum address of a given private key.
+ * @param privateKey A private key must be 256 bits wide
+ */
+export const privateToAddress = function(privateKey: Buffer): Buffer {
+  return publicToAddress(privateToPublic(privateKey))
+}
+
 /**
  * Converts a public key to the Ethereum format.
  */

src/address.ts

@@ -6,7 +6,7 @@ import {
   pubToAddress,
   privateToAddress,
   generateAddress,
-  generateAddress2,
+  generateAddress2
 } from './account'
 
 export class Address {

src/bytes.ts

@@ -1,4 +1,4 @@
-import * as BN from 'bn.js'
+import BN from 'bn.js'
 import { intToBuffer, stripHexPrefix, padToEven, isHexString, isHexPrefixed } from 'ethjs-util'
 import { TransformableToArray, TransformableToBuffer } from './types'
 import { assertIsBuffer, assertIsArray, assertIsHexString } from './helpers'
@@ -11,6 +11,31 @@ export const zeros = function(bytes: number): Buffer {
   return Buffer.allocUnsafe(bytes).fill(0)
 }
 
+/**
+ * Pads a `Buffer` with zeros till it has `length` bytes.
+ * Truncates the beginning or end of input if its length exceeds `length`.
+ * @param msg the value to pad (Buffer)
+ * @param length the number of bytes the output should be
+ * @param right whether to start padding form the left or right
+ * @return (Buffer)
+ */
+const setLength = function(msg: Buffer, length: number, right: boolean) {
+  const buf = zeros(length)
+  if (right) {
+    if (msg.length < length) {
+      msg.copy(buf)
+      return buf
+    }
+    return msg.slice(0, length)
+  } else {
+    if (msg.length < length) {
+      msg.copy(buf, length - msg.length)
+      return buf
+    }
+    return msg.slice(-length)
+  }
+}
+
 /**
  * Left Pads a `Buffer` with leading zeros till it has `length` bytes.
  * Or it truncates the beginning if it exceeds.
@@ -36,28 +61,17 @@ export const setLengthRight = function(msg: Buffer, length: number) {
 }
 
 /**
- * Pads a `Buffer` with zeros till it has `length` bytes.
- * Truncates the beginning or end of input if its length exceeds `length`.
- * @param msg the value to pad (Buffer)
- * @param length the number of bytes the output should be
- * @param right whether to start padding form the left or right
- * @return (Buffer)
+ * Trims leading zeros from a `Buffer`, `String` or `Number[]`.
+ * @param a (Buffer|Array|String)
+ * @return (Buffer|Array|String)
  */
-const setLength = function(msg: Buffer, length: number, right: boolean) {
-  const buf = zeros(length)
-  if (right) {
-    if (msg.length < length) {
-      msg.copy(buf)
-      return buf
-    }
-    return msg.slice(0, length)
-  } else {
-    if (msg.length < length) {
-      msg.copy(buf, length - msg.length)
-      return buf
-    }
-    return msg.slice(-length)
+const stripZeros = function(a: any): Buffer | number[] | string {
+  let first = a[0]
+  while (a.length > 0 && first.toString() === '0') {
+    a = a.slice(1)
+    first = a[0]
   }
+  return a
 }
 
 /**
@@ -91,20 +105,6 @@ export const unpadHexString = function(a: string): string {
   return stripZeros(a) as string
 }
 
-/**
- * Trims leading zeros from a `Buffer`, `String` or `Number[]`.
- * @param a (Buffer|Array|String)
- * @return (Buffer|Array|String)
- */
-const stripZeros = function(a: any): Buffer | number[] | string {
-  let first = a[0]
-  while (a.length > 0 && first.toString() === '0') {
-    a = a.slice(1)
-    first = a[0]
-  }
-  return a
-}
-
 /**
  * Attempts to turn a value into a `Buffer`.
  * Inputs supported: `Buffer`, `String`, `Number`, null/undefined, `BN` and other objects with a `toArray()` or `toBuffer()` method.
@@ -121,7 +121,7 @@ export const toBuffer = function(
     | TransformableToArray
     | TransformableToBuffer
     | null
-    | undefined,
+    | undefined
 ): Buffer {
   if (v === null || v === undefined) {
     return Buffer.allocUnsafe(0)
@@ -138,7 +138,7 @@ export const toBuffer = function(
   if (typeof v === 'string') {
     if (!isHexString(v)) {
       throw new Error(
-        `Cannot convert string to buffer. toBuffer only supports 0x-prefixed hex strings and this string was given: ${v}`,
+        `Cannot convert string to buffer. toBuffer only supports 0x-prefixed hex strings and this string was given: ${v}`
       )
     }
     return Buffer.from(padToEven(stripHexPrefix(v)), 'hex')

src/constants.ts

@@ -1,20 +1,20 @@
 const Buffer = require('buffer').Buffer
-import * as BN from 'bn.js'
+import BN from 'bn.js'
 
 /**
  * The max integer that this VM can handle
  */
 export const MAX_INTEGER: BN = new BN(
   'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff',
-  16,
+  16
 )
 
 /**
  * 2^256
  */
 export const TWO_POW256: BN = new BN(
   '10000000000000000000000000000000000000000000000000000000000000000',
-  16,
+  16
 )
 
 /**