feat: drop webpack 4 and node <= 10 support

BREAKING CHANGE: drop support for webpack 4 and node <= 10

.github/workflows/main.yml

@@ -8,9 +8,9 @@ jobs:
  runs-on: ${{ matrix.os }}
  strategy:
  matrix:
- node: ['6.x', '12.x', '14.x']
- os: [ubuntu-latest, windows-latest]
- webpack: ['4']
+ node: ['10.x', '12.x', '14.x']
+ os: [ubuntu-latest, windows-latest, macOS-latest]
+ webpack: ['5']
 
  steps:
  - name: LF

.node-version

@@ -1 +1 @@
-6.11.5
+10.13.0

index.js

@@ -28,8 +28,6 @@ const { assert } = require('console');
 const fsStatAsync = promisify(fs.stat);
 const fsReadFileAsync = promisify(fs.readFile);
 
-const webpackMajorVersion = Number(require('webpack/package.json').version.split('.')[0]);
-
 class HtmlWebpackPlugin {
  /**
  * @param {HtmlWebpackOptions} [options]
@@ -164,9 +162,7 @@ class HtmlWebpackPlugin {
  hash: templateResult.mainCompilationHash
  };
 
- const childCompilationOutputName = webpackMajorVersion === 4
- ? compilation.mainTemplate.getAssetPath(this.options.filename, compiledEntries)
- : compilation.getAssetPath(this.options.filename, compiledEntries);
+ const childCompilationOutputName = compilation.getAssetPath(this.options.filename, compiledEntries);
 
  // If the child compilation was not executed during a previous main compile run
  // it is a cached result
@@ -543,14 +539,10 @@ class HtmlWebpackPlugin {
  * if a path publicPath is set in the current webpack config use it otherwise
  * fallback to a relative path
  */
- const webpackPublicPath = webpackMajorVersion === 4
- ? compilation.mainTemplate.getPublicPath({ hash: compilationHash })
- : compilation.getAssetPath(compilation.outputOptions.publicPath, { hash: compilationHash });
-
- const isPublicPathDefined = webpackMajorVersion === 4
- ? webpackPublicPath.trim() !== ''
- // Webpack 5 introduced "auto" - however it can not be retrieved at runtime
- : webpackPublicPath.trim() !== '' && webpackPublicPath !== 'auto';
+ const webpackPublicPath = compilation.getAssetPath(compilation.outputOptions.publicPath, { hash: compilationHash });
+
+ // Webpack 5 introduced "auto" - however it can not be retrieved at compile time
+ const isPublicPathDefined = webpackPublicPath.trim() !== '' && webpackPublicPath !== 'auto';
 
  let publicPath =
  // If the html-webpack-plugin options contain a custom public path uset it

lib/child-compiler.js

@@ -168,18 +168,14 @@ class HtmlWebpackChildCompiler {
  * @returns Array<string>
  */
 function extractHelperFilesFromCompilation (mainCompilation, childCompilation, filename, childEntryChunks) {
- const webpackMajorVersion = Number(require('webpack/package.json').version.split('.')[0]);
-
  const helperAssetNames = childEntryChunks.map((entryChunk, index) => {
  const entryConfig = {
  hash: childCompilation.hash,
  chunk: entryChunk,
  name: `HtmlWebpackPlugin_${index}`
  };
 
- return webpackMajorVersion === 4
- ? mainCompilation.mainTemplate.getAssetPath(filename, entryConfig)
- : mainCompilation.getAssetPath(filename, entryConfig);
+ return mainCompilation.getAssetPath(filename, entryConfig);
  });
 
  helperAssetNames.forEach((helperFileName) => {

package.json

@@ -46,7 +46,7 @@
  "standard-version": "5.0.2",
  "style-loader": "0.23.1",
  "typescript": "3.8.3",
- "webpack": "4.35.2",
+ "webpack": "5.0.0",
  "webpack-recompilation-simulator": "3.2.0"
  },
  "dependencies": {
@@ -61,7 +61,7 @@
  "util.promisify": "1.0.0"
  },
  "peerDependencies": {
- "webpack": "^4.0.0 || ^5.0.0"
+ "webpack": "^5.0.0"
  },
  "keywords": [
  "webpack",
@@ -73,7 +73,7 @@
  "homepage": "https://github.com/jantimon/html-webpack-plugin",
  "repository": "https://github.com/jantimon/html-webpack-plugin.git",
  "engines": {
- "node": ">=6.9"
+ "node": ">=10.13.0"
  },
  "config": {
  "commitizen": {