Support webpack 4

Author: dpikt

package.json

@@ -18,13 +18,20 @@
     "fs-extra": "^4.0.2",
     "lodash.camelcase": "^4.3.0"
   },
+  "jest": {
+    "testEnvironment": "node"
+  },
   "devDependencies": {
     "@launchpadlab/babel-preset": "^1.0.0",
     "@launchpadlab/eslint-config": "^2.1.0",
+    "babel-core": "^6.26.0",
     "babel-eslint": "^8.0.1",
-    "babel-loader": "^7.1.2",
+    "babel-loader": "^7.1.4",
     "eslint": "^4.10.0",
     "jest": "^21.2.1",
-    "webpack": "^3.8.1"
+    "webpack": "^4.0.0"
+  },
+  "peerDependencies": {
+    "webpack": "^4.0.0"
   }
 }

src/dot-index-plugin.js

@@ -13,7 +13,7 @@ DotIndexPlugin.prototype.apply = function (compiler) {
   function recompile () {
     return compiler.run(() => {})
   }
-  compiler.plugin('watch-run', (compilation, callback) => {
+  compiler.hooks.watchRun.tapAsync('DotIndexPlugin', (compilation, callback) => {
     createDotIndexFiles(rootPath)
     // Only initialize once
     if (this.initialized) return callback()
@@ -25,7 +25,7 @@ DotIndexPlugin.prototype.apply = function (compiler) {
       callback()
     })
   })
-  compiler.plugin('run', (compilation, callback) => {
+  compiler.hooks.run.tapAsync('DotIndexPlugin', (compilation, callback) => {
     createDotIndexFiles(rootPath)
     callback()
   })

test/dot-index-plugin/dot-index-plugin.test.js

@@ -33,7 +33,7 @@ test('Generates dot index files', end => {
     expect(err).toEqual(null)
     const modules = stats.toJson().modules
     expect(modules.length).toEqual(4)
-    const indexFileContent = modules[0].source
+    const indexFileContent = modules.pop().source
     expect(indexFileContent).toMatchSnapshot()
     end()
   })