* First commit

* Added test cases
* Created getDirname and getFilename functions
* Created LICENSE
* Created Github Actions
* Created README

.github/workflows/deno.yml

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+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+# This workflow will install Deno and run tests across stable and nightly builds on Windows, Ubuntu and macOS.
+# For more information see: https://github.com/denolib/setup-deno
+
+name: Deno
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }} # runs a test on Ubuntu, Windows and macOS
+
+    strategy:
+      matrix:
+        deno: ["v1.x", "nightly"]
+        os: [macOS-latest, windows-latest, ubuntu-latest]
+
+    steps:
+      - name: Setup repo
+        uses: actions/checkout@v2
+
+      - name: Setup Deno
+        uses: denolib/setup-deno@v2
+        with:
+          deno-version: ${{ matrix.deno }} # tests across multiple Deno versions
+
+      - name: Cache Dependencies
+        run: deno cache deps.ts
+
+      - name: Run Tests
+        run: deno test -A --unstable

.vscode/settings.json

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+{
+    "deno.enable": true
+}

LICENSE

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+MIT License
+
+Copyright (c) 2020 Santiago Aguilar Hernández
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# cjs ![Deno](https://github.com/sant123/cjs-vars/workflows/Deno/badge.svg)
+
+Create variables like `__dirname` and `__filename` in Deno. Their behavior is the same as Node.js variables.
+
+## Usage
+
+```ts
+// example.ts
+import { getDirname, getFilename } from 'https://deno.land/x/cjs/mod.ts';
+
+const __dirname = getDirname(import.meta.url);
+const __filename = getFilename(import.meta.url);
+
+// Your code here...
+```
+
+## API
+
+### getDirname(importMetaUrl: string): string
+
+The directory name of the current module.
+
+### getFilename(importMetaUrl: string): string
+
+The file name of the current module. This is the current module file's absolute path.
+
+## Node.js support
+
+This should work with the [stable](https://nodejs.org/dist/latest-v15.x/docs/api/esm.html#esm_modules_ecmascript_modules) Ecmascript modules implementation of Node.js. See this [link](https://nodejs.org/dist/latest-v15.x/docs/api/esm.html#esm_no_filename_or_dirname) for more information.
+
+## Testing
+
+This library is highly tested to provide the same variables behavior of Node.js. If you see something is missing or ¿did you find a bug? pull requests are really welcome.

mod.ts

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+export { getDirname } from './src/get_dirname.ts';
+export { getFilename } from './src/get_filename.ts';

src/get_dirname.ts

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+const removeProtocolAndFilenameRegex = /\w+:\/\/(.*)\/[^/]+$/;
+
+export function getDirname(importMetaUrl: string): string {
+  return importMetaUrl.replace(removeProtocolAndFilenameRegex, '$1');
+}

src/get_filename.ts

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+const removeProtocolRegex = /\w+:\/\//;
+
+export function getFilename(importMetaUrl: string): string {
+  return importMetaUrl.replace(removeProtocolRegex, '');
+}

tests/get_dirname.test.ts

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+import { assertEquals } from 'https://deno.land/[email protected]/testing/asserts.ts';
+import { getDirname } from '../mod.ts';
+
+Deno.test('Get dirname from a simple directory', () => {
+  const __dirname = getDirname(
+    'file:///Users/santiago.aguilar/Desktop/index.ts',
+  );
+
+  assertEquals(__dirname, '/Users/santiago.aguilar/Desktop');
+});
+
+Deno.test('Get dirname with a directory with spaces', () => {
+  const __dirname = getDirname(
+    'file:///Users/santiago.aguilar/Desktop/dir%20with%20spaces/index.ts',
+  );
+
+  assertEquals(
+    __dirname,
+    '/Users/santiago.aguilar/Desktop/dir%20with%20spaces',
+  );
+});
+
+Deno.test('Get dirname with a directory with dots', () => {
+  const __dirname = getDirname(
+    'file:///Users/santiago.aguilar/Desktop/dir.with.dots/index.ts',
+  );
+
+  assertEquals(__dirname, '/Users/santiago.aguilar/Desktop/dir.with.dots');
+});
+
+Deno.test('Get dirname with a directory with dashes', () => {
+  const __dirname = getDirname(
+    'file:///Users/santiago.aguilar/Desktop/dir-with-dashes/index.ts',
+  );
+
+  assertEquals(__dirname, '/Users/santiago.aguilar/Desktop/dir-with-dashes');
+});
+
+Deno.test('Get dirname with a file without extension', () => {
+  const __dirname = getDirname('file:///Users/santiago.aguilar/Desktop/index');
+
+  assertEquals(__dirname, '/Users/santiago.aguilar/Desktop');
+});
+
+Deno.test('Get dirname with a hidden file', () => {
+  const __dirname = getDirname('file:///Users/santiago.aguilar/Desktop/.index');
+
+  assertEquals(__dirname, '/Users/santiago.aguilar/Desktop');
+});

tests/get_filename.test.ts

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+import { assertEquals } from 'https://deno.land/[email protected]/testing/asserts.ts';
+import { getFilename } from '../mod.ts';
+
+Deno.test('Get filename from a simple directory', () => {
+  const __filename = getFilename(
+    'file:///Users/santiago.aguilar/Desktop/index.ts',
+  );
+
+  assertEquals(__filename, '/Users/santiago.aguilar/Desktop/index.ts');
+});
+
+Deno.test('Get filename with a directory with spaces', () => {
+  const __filename = getFilename(
+    'file:///Users/santiago.aguilar/Desktop/dir%20with%20spaces/index.ts',
+  );
+
+  assertEquals(
+    __filename,
+    '/Users/santiago.aguilar/Desktop/dir%20with%20spaces/index.ts',
+  );
+});
+
+Deno.test('Get filename with a directory with dots', () => {
+  const __filename = getFilename(
+    'file:///Users/santiago.aguilar/Desktop/dir.with.dots/index.ts',
+  );
+
+  assertEquals(
+    __filename,
+    '/Users/santiago.aguilar/Desktop/dir.with.dots/index.ts',
+  );
+});
+
+Deno.test('Get filename with a directory with dashes', () => {
+  const __filename = getFilename(
+    'file:///Users/santiago.aguilar/Desktop/dir-with-dashes/index.ts',
+  );
+
+  assertEquals(
+    __filename,
+    '/Users/santiago.aguilar/Desktop/dir-with-dashes/index.ts',
+  );
+});
+
+Deno.test('Get filename without extension', () => {
+  const __filename = getFilename(
+    'file:///Users/santiago.aguilar/Desktop/index',
+  );
+
+  assertEquals(__filename, '/Users/santiago.aguilar/Desktop/index');
+});
+
+Deno.test('Get filename in a hidden file', () => {
+  const __filename = getFilename(
+    'file:///Users/santiago.aguilar/Desktop/.index',
+  );
+
+  assertEquals(__filename, '/Users/santiago.aguilar/Desktop/.index');
+});