convert undo script to php

Author: Nielsvanpach

configure.php

@@ -126,4 +126,5 @@ function replace_in_file(string $file, array $replacements): void {
 }
 
 confirm('Execute `composer install` and run tests?') && run('composer install && composer test');
+
 confirm('Let this script delete itself?', true) && unlink(__FILE__);

undo-configure.php

@@ -0,0 +1,11 @@
+#!/usr/bin/env php
+<?php
+
+function run(string $command): string {
+    return trim(shell_exec($command));
+}
+
+run('git reset head --hard');
+run('git clean -f -d');
+run('rm -fr vendor');
+run('rm composer.lock');