FTP to Dropbox Migration

composer.json

{
    "name": "barooney/ftp-dropbox-migrator",
    "description": "Migrates a full FTP server to a Dropbox",
    "type": "console",
    "require": {
        "league/flysystem": "^1.0",
        "league/flysystem-dropbox": "^1.0"
    },
    "authors": [
        {
            "name": "Daniel Baron",
            "email": "daniel@barooney.com"
        }
    ],
    "minimum-stability": "dev"
}

migration.php

<?php

include './vendor/autoload.php';

use League\Flysystem\Filesystem;
use League\Flysystem\Adapter\Ftp as FtpAdapter;
use League\Flysystem\Dropbox\DropboxAdapter;
use Dropbox\Client;

define( 'FTP_HOST', 'ftp-server.com' );
define( 'FTP_USER', 'user' );
define( 'FTP_PASSWORD', 'pass' );
define( 'FTP_ROOT', '/' );

define( 'DROPBOX_APP_KEY', 'app-key' );
define( 'DROPBOX_APP_SECRET', 'app-secret' );
define( 'DROPBOX_ACCESS_TOKEN', 'access-token' );

$ftp = new Filesystem( new FtpAdapter( [
    'host' => FTP_HOST,
    'username' => FTP_USER,
    'password' => FTP_PASSWORD,
] ) );

$client = new Client( DROPBOX_ACCESS_TOKEN, DROPBOX_APP_SECRET );
$adapter = new DropboxAdapter( $client );
$dropbox = new Filesystem( $adapter );

echo "Migration started.\n";

$contents = $ftp->listContents( FTP_ROOT, true );
foreach ( $contents as $content ) {
	if ( 'dir' === $content['type'] ) {
		echo "dir : " . $content['path'] . "\n";
		$dropbox->createDir( $content['path'] );
	} else if ( 'file' === $content['type'] ) {
		echo "file: " . $content['path'] . "\n";
		try {
			$in = $ftp->readStream( $content['path'] );
			$dropbox->writeStream( $content['path'], $in );
			if ( is_resource( $in ) ) {
				fclose( $in );
			}
		} catch ( League\Flysystem\FileExistsException $fee ) {
			echo "file exists already. skipping.\n";
		}
	}
}