Refactor to ESM, Refactor Tests to Node's Test Runner

.github/workflows/node.js.yml

@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [16.x, 18.x, 20.x]
+        node-version: [18.x, 20.x]
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
 
     steps:
@@ -27,4 +27,4 @@ jobs:
           node-version: ${{ matrix.node-version }}
           cache: 'npm'
       - run: npm install
-      - run: npm test
+      - run: npm run test:coverage

.husky/pre-commit

@@ -1,4 +1,2 @@
-#!/usr/bin/env sh
-. "$(dirname -- "$0")/_/husky.sh"
-
-npx eslint .
+npm test
+npx eslint .

README.md

@@ -10,12 +10,12 @@ Detect different types of JS obfuscation by their AST structure.
 ## Usage
 ### Module
 ```javascript
-const fs = require('fs');
-const detectObfuscation = require('obfuscation-detector');
+import fs from 'node:fs';
+import detectObfuscation from 'obfuscation-detector';
 
 const code = fs.readFileSync('obfuscated.js', 'utf-8');
-// const all_matching_obfuscation_types = detectObfuscation(code, false);
 const most_likely_obfuscation_type = detectObfuscation(code);
+// const all_matching_obfuscation_types = detectObfuscation(code, false);
 console.log(`Obfuscation type is probably ${most_likely_obfuscation_type}`);
 ```
 

bin/obfuscation-detector.js

@@ -1,5 +1,5 @@
 #!/usr/bin/env node
-const fs = require('node:fs');
+import fs from 'node:fs';
 const detectObfuscation = require(__dirname + '/../src');
 
 if (require.main === module) {

eslint.config.js

@@ -0,0 +1,43 @@
+import globals from "globals";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import js from "@eslint/js";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+    baseDirectory: __dirname,
+    recommendedConfig: js.configs.recommended,
+    allConfig: js.configs.all
+});
+
+export default [{
+    ignores: ["tests/resources", "**/*tmp*.*", "eslint.config.js", "node_modules/"],
+}, ...compat.extends("eslint:recommended"), {
+    languageOptions: {
+        globals: {
+            ...globals.browser,
+            ...globals.node,
+            ...globals.commonjs,
+        },
+
+        ecmaVersion: "latest",
+        sourceType: "module",
+    },
+
+    rules: {
+        indent: ["error", "tab", {
+            SwitchCase: 1,
+        }],
+
+        "linebreak-style": ["error", "unix"],
+
+        quotes: ["error", "single", {
+            allowTemplateLiterals: true,
+        }],
+
+        semi: ["error", "always"],
+        "no-empty": ["off"],
+    },
+}];