refactor(ts): migrate config module to use TS and ESM

.eslintrc.json

@@ -1,5 +1,5 @@
 {
-  "parser": "@babel/eslint-parser",
+  "parser": "@typescript-eslint/parser",
   "env": {
     "node": true,
     "browser": true,
@@ -9,13 +9,23 @@
   },
   "extends": [
     "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
     "plugin:react/recommended",
     "google",
     "prettier",
     "plugin:json/recommended"
   ],
-  "overrides": [],
+  "overrides": [
+    {
+      "files": ["test/**/*.js", "**/*.json"],
+      "parser": "espree",
+      "rules": {
+        "@typescript-eslint/no-unused-expressions": "off"
+      }
+    }
+  ],
   "parserOptions": {
+    "project": "./tsconfig.json",
     "requireConfigFile": false,
     "ecmaVersion": 12,
     "sourceType": "module",
@@ -27,11 +37,15 @@
       "presets": ["@babel/preset-react"]
     }
   },
-  "plugins": ["react", "prettier"],
+  "plugins": ["@typescript-eslint", "react", "prettier"],
   "rules": {
     "react/prop-types": "off",
     "require-jsdoc": "off",
-    "no-async-promise-executor": "off"
+    "no-async-promise-executor": "off",
+    "@typescript-eslint/no-explicit-any": "off", // temporary until TS refactor is complete
+    "@typescript-eslint/no-unused-vars": "off", // temporary until TS refactor is complete
+    "@typescript-eslint/no-require-imports": "off", // prevents error on old "require" imports
+    "@typescript-eslint/no-unused-expressions": "off" // prevents error on test "expect" expressions
   },
   "settings": {
     "react": {

.github/workflows/unused-dependencies.yml

@@ -21,7 +21,7 @@ jobs:
           node-version: '18.x'
       - name: 'Run depcheck'
         run: | 
-          npx depcheck --skip-missing --ignores="@babel/*,@commitlint/*,eslint,eslint-*,husky,mocha,concurrently,nyc,prettier"
+          npx depcheck --skip-missing --ignores="@babel/*,@commitlint/*,concurrently,eslint,eslint-*,husky,mocha,nyc,prettier,ts-mocha,ts-node,tsconfig-paths,tsx,typescript,vite-tsconfig-paths"
           echo $?
           if [[ $? == 1 ]]; then
             echo "Unused dependencies or devDependencies found"

index.ts

@@ -0,0 +1,51 @@
+#!/usr/bin/env node
+/* eslint-disable max-len */
+import yargs from 'yargs';
+import { hideBin } from 'yargs/helpers';
+import * as fs from 'fs';
+import { configFile, setConfigFile, validate } from './src/config/file';
+import proxy from './src/proxy';
+import service from './src/service';
+
+const argv = yargs(hideBin(process.argv))
+  .usage('Usage: $0 [options]')
+  .options({
+    validate: {
+      description:
+        'Check the proxy.config.json file in the current working directory for validation errors.',
+      required: false,
+      alias: 'v',
+      type: 'boolean',
+    },
+    config: {
+      description: 'Path to custom git-proxy configuration file.',
+      default: 'proxy.config.json',
+      required: false,
+      alias: 'c',
+      type: 'string',
+    },
+  })
+  .strict()
+  .parseSync();
+
+setConfigFile(argv.c as string || "");
+
+if (argv.v) {
+  if (!fs.existsSync(configFile)) {
+    console.error(
+      `Config file ${configFile} doesn't exist, nothing to validate! Did you forget -c/--config?`,
+    );
+    process.exit(1);
+  }
+
+  validate();
+  console.log(`${configFile} is valid`);
+  process.exit(0);
+}
+
+validate();
+
+proxy.start();
+service.start();
+
+export { proxy, service };