refactor!: webpack v4 and nodejs v10 dropped (#105)

* refactor!: webpack v4 and nodejs v10 dropped

* style: empty line

* ci: update

* chore: peerDependencies webpack 5.0.0

.github/workflows/nodejs.yml

@@ -30,7 +30,7 @@ jobs:
           fetch-depth: 0
 
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}
 
@@ -55,8 +55,8 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        node-version: [10.x, 12.x, 14.x]
-        webpack-version: [4, latest]
+        node-version: [12.x, 14.x, 16.x]
+        webpack-version: [latest]
 
     runs-on: ${{ matrix.os }}
 
@@ -68,7 +68,7 @@ jobs:
       - uses: actions/checkout@v2
 
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}
 

README.md

@@ -13,57 +13,11 @@
 
 # eslint-webpack-plugin
 
-> A ESLint plugin for webpack
+This plugin uses [`eslint`](https://eslint.org/) to find and fix problems in your JavaScript code
 
-## About plugin
+## Getting Started
 
-The plugin was born with the purpose of solving some problems of the [eslint-loader](https://github.com/webpack-contrib/eslint-loader).
-
-|                                  | eslint-webpack-plugin |      eslint-loader       |
-| -------------------------------- | :-------------------: | :----------------------: |
-| Easy configuration               |  :heavy_check_mark:   | :heavy_multiplication_x: |
-| Generate unique an output report |  :heavy_check_mark:   | :heavy_multiplication_x: |
-| Using cache directly from eslint |  :heavy_check_mark:   | :heavy_multiplication_x: |
-| Lint only changed files          |  :heavy_check_mark:   | :heavy_multiplication_x: |
-
-## Migrate from `eslint-loader`
-
-The loader `eslint-loader` will be deprecated soon, please use this plugin instead.
-
-Before:
-
-```js
-module.exports = {
-  // ...
-  module: {
-    rules: [
-      {
-        test: /\.js$/,
-        exclude: /node_modules/,
-        loader: 'eslint-loader',
-        options: {
-          // eslint options (if necessary)
-        },
-      },
-    ],
-  },
-  // ...
-};
-```
-
-After:
-
-```js
-const ESLintPlugin = require('eslint-webpack-plugin');
-
-module.exports = {
-  // ...
-  plugins: [new ESLintPlugin(options)],
-  // ...
-};
-```
-
-## Install
+To begin, you'll need to install `eslint-webpack-plugin`:
 
 ```bash
 npm install eslint-webpack-plugin --save-dev
@@ -75,9 +29,7 @@ npm install eslint-webpack-plugin --save-dev
 npm install eslint --save-dev
 ```
 
-## Usage
-
-In your webpack configuration:
+Then add the plugin to your webpack config. For example:
 
 ```js
 const ESLintPlugin = require('eslint-webpack-plugin');

babel.config.js

@@ -10,7 +10,7 @@ module.exports = (api) => {
         '@babel/preset-env',
         {
           targets: {
-            node: '10.13.0',
+            node: '12.13.0',
           },
         },
       ],

declarations/ESLintError.d.ts

@@ -1,7 +1,2 @@
 export default ESLintError;
-declare class ESLintError extends Error {
-  /**
-   * @param {string=} messages
-   */
-  constructor(messages?: string | undefined);
-}
+declare class ESLintError extends Error {}

declarations/cjs.d.ts

@@ -1,3 +1,3 @@
 declare const _exports: typeof plugin.default;
 export = _exports;
-import plugin = require('.');
+import plugin = require('./');

declarations/getESLint.d.ts

@@ -32,8 +32,7 @@ export default function getESLint(
 ): Linter;
 export type ESLint = import('eslint').ESLint;
 export type LintResult = import('eslint').ESLint.LintResult;
-export type Options = import('./options').PluginOptions &
-  import('eslint').ESLint.Options;
+export type Options = import('./options').Options;
 export type AsyncTask = () => Promise<void>;
 export type LintTask = (files: string | string[]) => Promise<LintResult[]>;
 export type Worker = JestWorker & {
@@ -46,4 +45,4 @@ export type Linter = {
   lintFiles: LintTask;
   cleanup: AsyncTask;
 };
-import JestWorker from 'jest-worker';
+import { Worker as JestWorker } from 'jest-worker';

declarations/index.d.ts

@@ -1,7 +1,6 @@
 export default ESLintWebpackPlugin;
 export type Compiler = import('webpack').Compiler;
-export type Options = import('./options').PluginOptions &
-  import('eslint').ESLint.Options;
+export type Options = import('./options').Options;
 declare class ESLintWebpackPlugin {
   /**
    * @param {Options} options

declarations/linter.d.ts

@@ -18,18 +18,13 @@ export type Formatter = import('eslint').ESLint.Formatter;
 export type LintResult = import('eslint').ESLint.LintResult;
 export type Compiler = import('webpack').Compiler;
 export type Compilation = import('webpack').Compilation;
-export type Source = import('webpack-sources/lib/Source');
-export type Options = import('./options').PluginOptions &
-  import('eslint').ESLint.Options;
-export type FormatterFunction = (
-  results: import('eslint').ESLint.LintResult[],
-  data?: import('eslint').ESLint.LintResultData | undefined
-) => string;
+export type Options = import('./options').Options;
+export type FormatterFunction = import('./options').FormatterFunction;
 export type GenerateReport = (compilation: Compilation) => Promise<void>;
 export type Report = {
-  errors?: ESLintError | undefined;
-  warnings?: ESLintError | undefined;
-  generateReportAsset?: GenerateReport | undefined;
+  errors?: ESLintError;
+  warnings?: ESLintError;
+  generateReportAsset?: GenerateReport;
 };
 export type Reporter = () => Promise<Report>;
 export type Linter = (files: string | string[]) => void;

declarations/options.d.ts

@@ -69,4 +69,4 @@ export type PluginOptions = {
   outputReport?: OutputReport | undefined;
   threads?: (number | boolean) | undefined;
 };
-export type Options = PluginOptions & import('eslint').ESLint.Options;
+export type Options = PluginOptions & ESLintOptions;

jest.config.js

@@ -0,0 +1,6 @@
+module.exports = {
+  collectCoverage: true,
+  testEnvironment: 'node',
+  testTimeout: 60000,
+  transformIgnorePatterns: ['node_modules/(?!(arrify)/)'],
+};