feat: Add initial implementation (#1)

Release-As: 0.1.0

.eslintrc.yml

@@ -0,0 +1,3 @@
+extends: '@meyfa/eslint-config'
+parserOptions:
+  project: './tsconfig.lint.json'

.github/workflows/main.yml

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+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  lint:
+    name: Linting
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 18
+          cache: npm
+      - run: npm ci
+      - run: npm run lint
+
+  test:
+    name: test - Node.js ${{ matrix.node-version }}
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version:
+          - 18
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: npm
+      - run: npm ci
+      - run: npm test

.gitignore

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+.DS_Store
+.idea
+node_modules/
+/dist
+.nyc_output
+/coverage

README.md

@@ -1,2 +1,41 @@
 # ts-node-test
-Use the Node.js test runner, but with TypeScript via ts-node
+
+[![CI](https://github.com/meyfa/ts-node-test/actions/workflows/main.yml/badge.svg)](https://github.com/meyfa/ts-node-test/actions/workflows/main.yml)
+
+Use the [Node.js test runner](https://nodejs.org/dist/latest-v18.x/docs/api/test.html), but with TypeScript via ts-node.
+You need to have `typescript` installed as a (dev) dependency and must be using Node version 18.7.0 or later.
+
+Imagine it like `ts-node --test`, if that command existed.
+
+### How to use
+
+Install as a dev dependency:
+
+```
+npm i -D ts-node-test
+```
+
+Then add a script to your `package.json`:
+
+```
+{
+  "scripts": {
+    "test": "ts-node-test test-file1.ts foo/test-file2.ts another-dir/"
+  }
+}
+```
+
+The command syntax is similar to `node --test`. Multiple paths can be passed. Directories will be searched recursively
+for any files with supported extensions (currently: `.js`, `.mjs`, `.cjs`; `.ts`, `.mts`, `.cts`).
+Then, Node's test runner will be started on all files that were found in this process.
+
+### Why this is needed
+
+TL;DR: Node.js (at the time of writing) does not allow to override the list of extensions that are used when searching
+for test files. The official recommendation is to list all files explicitly. That is precisely what this CLI wrapper
+does behind the scenes.
+
+Please refer to the following issues for further information:
+
+* [Node.js #44023](https://github.com/nodejs/node/issues/44023)
+* [ts-node #1853](https://github.com/TypeStrong/ts-node/issues/1853)