refactor: dropped webpack@4 (#33)

BREAKING CHANGE: minimum supported webpack version is `5`

.github/workflows/nodejs.yml

@@ -56,7 +56,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
         node-version: [10.x, 12.x, 14.x]
-        webpack-version: [4, latest]
+        webpack-version: [latest]
 
     runs-on: ${{ matrix.os }}
 

package.json

@@ -38,11 +38,10 @@
     "dist"
   ],
   "peerDependencies": {
-    "webpack": "^4.0.0 || ^5.0.0"
+    "webpack": "^5.0.0"
   },
   "dependencies": {
-    "loader-utils": "^2.0.0",
-    "schema-utils": "^3.0.0"
+    "loader-utils": "^2.0.0"
   },
   "devDependencies": {
     "@babel/cli": "^7.13.14",

src/index.js

@@ -3,18 +3,12 @@
   Author Tobias Koppers @sokra
 */
 
-import { getOptions, interpolateName } from "loader-utils";
-import { validate } from "schema-utils";
+import { interpolateName } from "loader-utils";
 
 import schema from "./options.json";
 
 export default function loader(content) {
-  const options = getOptions(this);
-
-  validate(schema, options, {
-    name: "Node Loader",
-    baseDataPath: "options",
-  });
+  const options = this.getOptions(schema);
 
   const name = interpolateName(
     this,

src/options.json

@@ -1,4 +1,5 @@
 {
+  "title": "Node Loader options",
   "type": "object",
   "properties": {
     "name": {

test/helpers/getCompiler.js

@@ -39,11 +39,7 @@ export default (fixture, loaderOptions = {}, config = {}) => {
   const compiler = webpack(fullConfig);
 
   if (!config.outputFileSystem) {
-    const outputFileSystem = createFsFromVolume(new Volume());
-    // Todo remove when we drop webpack@4 support
-    outputFileSystem.join = path.join.bind(path);
-
-    compiler.outputFileSystem = outputFileSystem;
+    compiler.outputFileSystem = createFsFromVolume(new Volume());
   }
 
   return compiler;