Put at your www root when syncing with a project that uses eosrei's Git-Dev-Workflow. This way you don't have to change database connection info when moving your code between the server and local.

gdw.settings.php

<?php
/**
 * A gdw.settings.php files for local D7 development. Store in /var/www.
 */

// Site is stored in '/var/www/example', so database name is 'example'
$database = basename(getcwd());

$databases = array (
  'default' => array (
    'default' => array (
      'database' => $database,
      'username' => 'root',
      'password' => 'PASSWORD',
      'host' => 'localhost',
      'port' => '',
      'driver' => 'mysql',
      'prefix' => '',
    ),
  ),
);

Two updates, change password line:
'password' => 'PASSWORD',
Replace PASSWORD with your local account password.

Also, use this host file definition, because Drush likes to use 127.0.0.1 instead of localhost:
'host' => php_sapi_name() == 'cli' ? '127.0.0.1' : 'localhost',