Rewrite installer without 3rd party installer lib.

modules/Installer/Services/EnvironmentService.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace Modules\Installer\Services;
+
+use Illuminate\Encryption\Encrypter;
+use Log;
+use PDO;
+
+class EnvironmentService
+{
+
+    /**
+     * Check the PHP version that it meets the minimum requirement
+     * @return boolean
+     */
+    public function createEnvFile($type, $host, $port, $name, $user, $pass)
+    {
+        $env_opts = [
+            'db_conn' => $type,
+            'db_host' => $host,
+            'db_port' => $port,
+            'db_name' => $name,
+            'db_user' => $user,
+            'db_pass' => $pass,
+        ];
+
+        $env_opts['app_key'] = base64_encode(Encrypter::generateKey(config('app.cipher')));
+
+        $this->writeEnvFile($env_opts);
+        return true;
+    }
+
+    /**
+     * Get the template file name and write it out
+     */
+    protected function writeEnvFile($env_opts)
+    {
+        $app = app();
+        $env_file = $app->environmentFilePath();
+
+        # TODO: Remove this post-testing
+        $env_file .= '.generated';
+
+        $env_contents = view('installer::stubs/env', $env_opts);
+        Log::info($env_contents);
+
+        $fp = fopen($env_file, 'w');
+        fwrite($fp, $env_contents);
+        fclose($fp);
+    }
+
+}