deprecate old versions of node and webpack

Deprecated:
node@6
webpack@2
webpack@3

Author: mastilver

.travis.yml

@@ -1,12 +1,10 @@
 language: node_js
 node_js:
-  - '9'
-  - '8'
-  - '6'
+  - 'node'
+  - '10'
+  - '8.3.0'
 
 env:
-  - WEBPACK_VERSION=2 EXTRACT_PLUGIN_VERSION=2
-  - WEBPACK_VERSION=3 EXTRACT_PLUGIN_VERSION=3.0.2
   - WEBPACK_VERSION=4 EXTRACT_PLUGIN_VERSION=next
 
 install:

lib/plugin.js

@@ -76,14 +76,11 @@ ManifestPlugin.prototype.apply = function(compiler) {
           name = path;
         }
 
-        // Webpack 4: .isOnlyInitial()
-        // Webpack 3: .isInitial()
-        // Webpack 1/2: .initial
         return files.concat({
           path: path,
           chunk: chunk,
           name: name,
-          isInitial: chunk.isOnlyInitial ? chunk.isOnlyInitial() : (chunk.isInitial ? chunk.isInitial() : chunk.initial),
+          isInitial: chunk.isOnlyInitial(),
           isChunk: true,
           isAsset: false,
           isModuleAsset: false
@@ -169,13 +166,7 @@ ManifestPlugin.prototype.apply = function(compiler) {
 
     var manifest;
     if (this.opts.generate) {
-      const entrypointsArray = Array.from(
-        compilation.entrypoints instanceof Map ?
-          // Webpack 4+
-          compilation.entrypoints.entries() :
-          // Webpack 3
-          entries(compilation.entrypoints)
-      );
+      const entrypointsArray = Array.from(compilation.entrypoints.entries());
       const entrypoints = entrypointsArray.reduce(
         (e, [name, entrypoint]) => Object.assign(e, { [name]: entrypoint.getFiles() }),
         {}
@@ -222,30 +213,20 @@ ManifestPlugin.prototype.apply = function(compiler) {
     }
   }
 
-  if (compiler.hooks) {
-    const SyncWaterfallHook = require('tapable').SyncWaterfallHook;
-    const pluginOptions = {
-      name: 'ManifestPlugin',
-      stage: Infinity
-    };
-    compiler.hooks.webpackManifestPluginAfterEmit = new SyncWaterfallHook(['manifest']);
-
-    compiler.hooks.compilation.tap(pluginOptions, function (compilation) {
-      compilation.hooks.moduleAsset.tap(pluginOptions, moduleAsset);
-    });
-    compiler.hooks.emit.tap(pluginOptions, emit);
+  const SyncWaterfallHook = require('tapable').SyncWaterfallHook;
+  const pluginOptions = {
+    name: 'ManifestPlugin',
+    stage: Infinity
+  };
+  compiler.hooks.webpackManifestPluginAfterEmit = new SyncWaterfallHook(['manifest']);
 
-    compiler.hooks.run.tap(pluginOptions, beforeRun);
-    compiler.hooks.watchRun.tap(pluginOptions, beforeRun);
-  } else {
-    compiler.plugin('compilation', function (compilation) {
-      compilation.plugin('module-asset', moduleAsset);
-    });
-    compiler.plugin('emit', emit);
+  compiler.hooks.compilation.tap(pluginOptions, function (compilation) {
+    compilation.hooks.moduleAsset.tap(pluginOptions, moduleAsset);
+  });
+  compiler.hooks.emit.tap(pluginOptions, emit);
 
-    compiler.plugin('before-run', beforeRun);
-    compiler.plugin('watch-run', beforeRun);
-  }
+  compiler.hooks.run.tap(pluginOptions, beforeRun);
+  compiler.hooks.watchRun.tap(pluginOptions, beforeRun);
 };
 
 module.exports = ManifestPlugin;

package.json

@@ -13,20 +13,20 @@
     "node": ">=6.11.5"
   },
   "peerDependencies": {
-    "webpack": "2 || 3 || 4"
+    "webpack": "4"
   },
   "devDependencies": {
-    "codecov": "^3.1.0",
-    "css-loader": "^1.0.0",
-    "extract-text-webpack-plugin": "^3.0.2",
-    "file-loader": "^2.0.0",
-    "jest": "^23.5.0",
+    "@svgr/webpack": "^4.3.3",
+    "codecov": "^3.6.1",
+    "css-loader": "^3.2.0",
+    "extract-text-webpack-plugin": "4.0.0-beta.0",
+    "file-loader": "^4.2.0",
+    "jest": "^24.9.0",
     "memory-fs": "^0.4.1",
-    "react": "^16.3.2",
-    "rimraf": "^2.6.1",
-    "style-loader": "^0.23.0",
-    "svgr": "^1.9.2",
-    "webpack": "^3.12.0"
+    "react": "^16.9.0",
+    "rimraf": "^3.0.0",
+    "style-loader": "^1.0.0",
+    "webpack": "^4.41.0"
   },
   "files": [
     "index.js",
@@ -41,14 +41,17 @@
   },
   "homepage": "https://github.com/danethurber/webpack-manifest-plugin",
   "dependencies": {
-    "fs-extra": "^7.0.0",
-    "lodash": ">=3.5 <5",
+    "fs-extra": "^8.1.0",
+    "lodash": "^4",
     "object.entries": "^1.1.0",
-    "tapable": "^1.0.0"
+    "tapable": "^1.1.3"
   },
   "jest": {
     "testEnvironment": "node",
     "coverageDirectory": "./coverage/",
-    "collectCoverage": true
+    "collectCoverage": true,
+    "coveragePathIgnorePatterns": [
+      "<rootDir>/spec/helpers/"
+    ]
   }
 }

spec/plugin.integration.spec.js

@@ -8,10 +8,6 @@ var rimraf = require('rimraf');
 
 var ManifestPlugin = require('../index.js');
 
-jasmine.DEFAULT_TIMEOUT_INTERVAL = 5 * 60 * 1000;
-
-const isWebpack4 = (yes, no) => webpack.version && webpack.version.slice(0, 1) === '4' ? yes : no;
-
 function webpackConfig(webpackOpts, opts) {
   return _.merge({
     plugins: [
@@ -221,26 +217,19 @@ describe('ManifestPlugin using real fs', function() {
         expect(manifest).toBeDefined();
 
         if (isFirstRun) {
-          expect(manifest).toEqual(isWebpack4({
+          expect(manifest).toEqual({
             'main.js': 'main.js',
             '1.js': '1.js',
             '2.js': '2.js'
-          }, {
-            'main.js': 'main.js',
-            '0.js': '0.js',
-            '1.js': '1.js'
-          }));
+          });
 
           isFirstRun = false;
           fse.outputFileSync(path.join(__dirname, 'output/watch-import-chunk/index.js'), 'import(\'./chunk1\')');
         } else {
-          expect(manifest).toEqual(isWebpack4({
+          expect(manifest).toEqual({
             'main.js': 'main.js',
             '1.js': '1.js',
-          }, {
-            'main.js': 'main.js',
-            '3.js': '3.js',
-          }));
+          });
 
           done();
         }
@@ -467,7 +456,7 @@ describe('scoped hoisting', function() {
         rules: [
           {
             test: /\.svg$/,
-            use: ['svgr/webpack', 'file-loader']
+            use: ['@svgr/webpack', 'file-loader']
           },
         ],
       },

spec/plugin.spec.js

@@ -10,8 +10,6 @@ var plugin = require('../index.js');
 var OUTPUT_DIR = path.join(__dirname, './webpack-out');
 var manifestPath = path.join(OUTPUT_DIR, 'manifest.json');
 
-const isWebpack4 = (yes, no) => webpack.version && webpack.version.slice(0, 1) === '4' ? yes : no;
-
 function webpackConfig (webpackOpts, opts) {
   return _.merge({
     output: {
@@ -39,7 +37,7 @@ function webpackCompile(webpackOpts, opts, cb) {
 
   var fs = compiler.outputFileSystem = new MemoryFileSystem();
 
-  compiler.run(function(err, stats){
+  compiler.run(function(err, stats) {
     var manifestFile
     try {
       manifestFile = JSON.parse( fs.readFileSync(manifestPath).toString() );
@@ -342,7 +340,7 @@ describe('ManifestPlugin', function() {
       webpackCompile({
         context: __dirname,
         entry: './fixtures/file.txt',
-        module: isWebpack4({
+        module: {
           rules: [{
             test: /\.(txt)/,
             use: [{
@@ -352,11 +350,7 @@ describe('ManifestPlugin', function() {
               }
             }]
           }]
-        }, {
-          loaders: [
-            { test: /\.(txt)/, loader: 'file-loader?name=file.[ext]' },
-          ]
-        })
+        }
       }, {}, function(manifest, stats) {
         expect(manifest).toBeDefined();
         expect(manifest).toEqual({
@@ -372,7 +366,7 @@ describe('ManifestPlugin', function() {
       webpackCompile({
         context: __dirname,
         entry: './fixtures/file.txt',
-        module: isWebpack4({
+        module: {
           rules: [{
             test: /\.(txt)/,
             use: [{
@@ -382,11 +376,7 @@ describe('ManifestPlugin', function() {
               }
             }]
           }]
-        }, {
-          loaders: [
-            { test: /\.(txt)/, loader: 'file-loader?name=outputfile.[ext]' },
-          ]
-        })
+        }
       }, {}, function(manifest, stats) {
         expect(manifest).toBeDefined();
         expect(manifest).toEqual({
@@ -447,23 +437,15 @@ describe('ManifestPlugin', function() {
         output: {
           filename: '[name].js'
         },
-        module: isWebpack4({
+        module: {
           rules: [{
             test: /\.css$/,
             use: ExtractTextPlugin.extract({
               fallback: 'style-loader',
               use: 'css-loader'
             })
           }]
-        }, {
-          loaders: [{
-            test: /\.css$/,
-            loader: ExtractTextPlugin.extract({
-              fallback: 'style-loader',
-              use: 'css-loader'
-            })
-          }]
-        }),
+        },
         plugins: [
           new plugin(),
           new ExtractTextPlugin({