diff --git a/.coveralls.yml b/.coveralls.yml
new file mode 100644
index 0000000..5069798
--- /dev/null
+++ b/.coveralls.yml
@@ -0,0 +1,2 @@
+src_dir: Mage
+coverage_clover: build/logs/coverage.xml
diff --git a/.travis.yml b/.travis.yml
index 5d2fb0d..13a647c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,4 +7,12 @@ php:
   - 5.6
 
 install:
-  - composer install --dev --prefer-source
+  - composer self-update
+  - composer install --prefer-source
+
+script:
+  - mkdir -p build/logs
+  - bin/phpunit --coverage-clover build/logs/coverage.xml
+
+after_script:
+  - bin/coveralls -v
diff --git a/Mage/Command/Factory.php b/Mage/Command/Factory.php
index 4088239..d5668ee 100644
--- a/Mage/Command/Factory.php
+++ b/Mage/Command/Factory.php
@@ -43,14 +43,17 @@ class Factory
             // try a custom command
             $className = 'Command\\' . $commandName;
 
+            // TODO use a custom exception
             if (!class_exists($className)) {
                 throw new Exception('Command "' . $commandName . '" not found.');
             }
         }
 
         /** @var AbstractCommand $instance */
+        // TODO dependencies like $config should be injected into constructor
         $instance = new $className;
         if (! $instance instanceOf AbstractCommand) {
+            // TODO use a custom exception
             throw new Exception('The command ' . $commandName . ' must be an instance of Mage\Command\AbstractCommand.');
         }
 
diff --git a/Mage/Task/BuiltIn/Deployment/ReleaseTask.php b/Mage/Task/BuiltIn/Deployment/ReleaseTask.php
index 4ecf586..095116e 100644
--- a/Mage/Task/BuiltIn/Deployment/ReleaseTask.php
+++ b/Mage/Task/BuiltIn/Deployment/ReleaseTask.php
@@ -74,12 +74,13 @@ class ReleaseTask extends AbstractTask implements IsReleaseAware, SkipOnOverride
                 }
             }
 
-            if ($resultFetch && $userGroup != '') {  
-                $command = 'chown -h ' . $userGroup . ' ' . $symlink
-                    . ' && '
-                    . 'chown -R ' . $userGroup . ' ' . $currentCopy
+            if ($resultFetch && $userGroup != '') {
+                $command = 'chown -R ' . $userGroup . ' ' . $currentCopy
                     . ' && '
                     . 'chown ' . $userGroup . ' ' . $releasesDirectory;
+                if (file_exists($symlink)) {
+                    $command.= ' && ' . 'chown -h ' . $userGroup . ' ' . $symlink;
+                }
                 $result = $this->runCommandRemote($command);
                 if (!$result) {
                     return $result;
diff --git a/Mage/Task/BuiltIn/Deployment/Strategy/GitRebaseTask.php b/Mage/Task/BuiltIn/Deployment/Strategy/GitRebaseTask.php
index b19e06e..801fa73 100644
--- a/Mage/Task/BuiltIn/Deployment/Strategy/GitRebaseTask.php
+++ b/Mage/Task/BuiltIn/Deployment/Strategy/GitRebaseTask.php
@@ -34,6 +34,17 @@ class GitRebaseTask extends BaseStrategyTaskAbstract implements IsReleaseAware
      */
     public function run()
     {
+        $this->checkOverrideRelease();
+
+        if ($this->getConfig()->release('enabled', false) == true) {
+            $releasesDirectory = $this->getConfig()->release('directory', 'releases');
+
+            $deployToDirectory = rtrim($this->getConfig()->deployment('to'), '/')
+                . '/' . $releasesDirectory
+                . '/' . $this->getConfig()->getReleaseId();
+            $this->runCommandRemote('mkdir -p ' . $deployToDirectory);
+        }
+
         $branch = $this->getParameter('branch', 'master');
         $remote = $this->getParameter('remote', 'origin');
 
diff --git a/Mage/Task/BuiltIn/Deployment/Strategy/RsyncTask.php b/Mage/Task/BuiltIn/Deployment/Strategy/RsyncTask.php
index 3555ce0..cd8f648 100644
--- a/Mage/Task/BuiltIn/Deployment/Strategy/RsyncTask.php
+++ b/Mage/Task/BuiltIn/Deployment/Strategy/RsyncTask.php
@@ -73,11 +73,13 @@ class RsyncTask extends BaseStrategyTaskAbstract implements IsReleaseAware
                 // rsync: { copy: yes }
                 $rsync_copy = $this->getConfig()->deployment('rsync');
                 // If copy_tool_rsync, use rsync rather than cp for finer control of what is copied
-                if ($rsync_copy && is_array($rsync_copy) && $rsync_copy['copy'] && isset($rsync_copy['copy_tool_rsync'])) {
-                    $this->runCommandRemote("rsync -a {$this->excludes(array_merge($excludes, $rsync_copy['rsync_excludes']))} "
+                if ($rsync_copy && is_array($rsync_copy) && $rsync_copy['copy'] && is_dir("$releasesDirectory/$currentRelease")) {
+                    if (isset($rsync_copy['copy_tool_rsync'])) {
+                        $this->runCommandRemote("rsync -a {$this->excludes(array_merge($excludes, $rsync_copy['rsync_excludes']))} "
                                           . "$releasesDirectory/$currentRelease/ $releasesDirectory/{$this->getConfig()->getReleaseId()}");
-                } elseif ($rsync_copy && is_array($rsync_copy) && $rsync_copy['copy']) {
-                    $this->runCommandRemote('cp -R ' . $releasesDirectory . '/' . $currentRelease . ' ' . $releasesDirectory . '/' . $this->getConfig()->getReleaseId());
+                    } else {
+                        $this->runCommandRemote('cp -R ' . $releasesDirectory . '/' . $currentRelease . ' ' . $releasesDirectory . '/' . $this->getConfig()->getReleaseId());
+                    }
                 } else {
                     $this->runCommandRemote('mkdir -p ' . $releasesDirectory . '/' . $this->getConfig()->getReleaseId());
                 }
diff --git a/composer.json b/composer.json
index 5295d56..6f15d6c 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,8 @@
         "php": ">=5.3"
     },
     "require-dev": {
-        "phpunit/phpunit": "4.3.5"
+        "phpunit/phpunit": "4.3.5",
+        "satooshi/php-coveralls": ">=0.6.1"
     },
     "autoload": {
         "psr-4": {
diff --git a/composer.lock b/composer.lock
index a927b43..312d535 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "7a55b88add493fbc9910519e7e9c3a3b",
+    "hash": "d82ccc62c52f99a0819bea9b247d4f86",
     "packages": [],
     "packages-dev": [
         {
@@ -61,6 +61,98 @@
             ],
             "time": "2014-10-13 12:58:55"
         },
+        {
+            "name": "guzzle/guzzle",
+            "version": "v3.9.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/guzzle/guzzle3.git",
+                "reference": "54991459675c1a2924122afbb0e5609ade581155"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/guzzle/guzzle3/zipball/54991459675c1a2924122afbb0e5609ade581155",
+                "reference": "54991459675c1a2924122afbb0e5609ade581155",
+                "shasum": ""
+            },
+            "require": {
+                "ext-curl": "*",
+                "php": ">=5.3.3",
+                "symfony/event-dispatcher": "~2.1"
+            },
+            "replace": {
+                "guzzle/batch": "self.version",
+                "guzzle/cache": "self.version",
+                "guzzle/common": "self.version",
+                "guzzle/http": "self.version",
+                "guzzle/inflection": "self.version",
+                "guzzle/iterator": "self.version",
+                "guzzle/log": "self.version",
+                "guzzle/parser": "self.version",
+                "guzzle/plugin": "self.version",
+                "guzzle/plugin-async": "self.version",
+                "guzzle/plugin-backoff": "self.version",
+                "guzzle/plugin-cache": "self.version",
+                "guzzle/plugin-cookie": "self.version",
+                "guzzle/plugin-curlauth": "self.version",
+                "guzzle/plugin-error-response": "self.version",
+                "guzzle/plugin-history": "self.version",
+                "guzzle/plugin-log": "self.version",
+                "guzzle/plugin-md5": "self.version",
+                "guzzle/plugin-mock": "self.version",
+                "guzzle/plugin-oauth": "self.version",
+                "guzzle/service": "self.version",
+                "guzzle/stream": "self.version"
+            },
+            "require-dev": {
+                "doctrine/cache": "~1.3",
+                "monolog/monolog": "~1.0",
+                "phpunit/phpunit": "3.7.*",
+                "psr/log": "~1.0",
+                "symfony/class-loader": "~2.1",
+                "zendframework/zend-cache": "2.*,<2.3",
+                "zendframework/zend-log": "2.*,<2.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.9-dev"
+                }
+            },
+            "autoload": {
+                "psr-0": {
+                    "Guzzle": "src/",
+                    "Guzzle\\Tests": "tests/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Michael Dowling",
+                    "email": "mtdowling@gmail.com",
+                    "homepage": "https://github.com/mtdowling"
+                },
+                {
+                    "name": "Guzzle Community",
+                    "homepage": "https://github.com/guzzle/guzzle/contributors"
+                }
+            ],
+            "description": "Guzzle is a PHP HTTP client library and framework for building RESTful web service clients",
+            "homepage": "http://guzzlephp.org/",
+            "keywords": [
+                "client",
+                "curl",
+                "framework",
+                "http",
+                "http client",
+                "rest",
+                "web service"
+            ],
+            "time": "2014-08-11 04:32:36"
+        },
         {
             "name": "phpunit/php-code-coverage",
             "version": "2.0.13",
@@ -437,6 +529,112 @@
             ],
             "time": "2014-10-03 05:12:11"
         },
+        {
+            "name": "psr/log",
+            "version": "1.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-fig/log.git",
+                "reference": "fe0936ee26643249e916849d48e3a51d5f5e278b"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-fig/log/zipball/fe0936ee26643249e916849d48e3a51d5f5e278b",
+                "reference": "fe0936ee26643249e916849d48e3a51d5f5e278b",
+                "shasum": ""
+            },
+            "type": "library",
+            "autoload": {
+                "psr-0": {
+                    "Psr\\Log\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "PHP-FIG",
+                    "homepage": "http://www.php-fig.org/"
+                }
+            ],
+            "description": "Common interface for logging libraries",
+            "keywords": [
+                "log",
+                "psr",
+                "psr-3"
+            ],
+            "time": "2012-12-21 11:40:51"
+        },
+        {
+            "name": "satooshi/php-coveralls",
+            "version": "v0.6.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/satooshi/php-coveralls.git",
+                "reference": "dd0df95bd37a7cf5c5c50304dfe260ffe4b50760"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/satooshi/php-coveralls/zipball/dd0df95bd37a7cf5c5c50304dfe260ffe4b50760",
+                "reference": "dd0df95bd37a7cf5c5c50304dfe260ffe4b50760",
+                "shasum": ""
+            },
+            "require": {
+                "ext-curl": "*",
+                "ext-json": "*",
+                "ext-simplexml": "*",
+                "guzzle/guzzle": ">=3.0",
+                "php": ">=5.3",
+                "psr/log": "1.0.0",
+                "symfony/config": ">=2.0",
+                "symfony/console": ">=2.0",
+                "symfony/stopwatch": ">=2.2",
+                "symfony/yaml": ">=2.0"
+            },
+            "require-dev": {
+                "apigen/apigen": "2.8.*@stable",
+                "pdepend/pdepend": "dev-master",
+                "phpmd/phpmd": "dev-master",
+                "phpunit/php-invoker": ">=1.1.0,<1.2.0",
+                "phpunit/phpunit": "3.7.*@stable",
+                "sebastian/finder-facade": "dev-master",
+                "sebastian/phpcpd": "1.4.*@stable",
+                "squizlabs/php_codesniffer": "1.4.*@stable",
+                "theseer/fdomdocument": "dev-master"
+            },
+            "bin": [
+                "composer/bin/coveralls"
+            ],
+            "type": "library",
+            "autoload": {
+                "psr-0": {
+                    "Contrib\\Component": "src/",
+                    "Contrib\\Bundle": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Kitamura Satoshi",
+                    "email": "with.no.parachute@gmail.com",
+                    "homepage": "https://www.facebook.com/satooshi.jp"
+                }
+            ],
+            "description": "PHP client library for Coveralls API",
+            "homepage": "https://github.com/satooshi/php-coveralls",
+            "keywords": [
+                "ci",
+                "coverage",
+                "github",
+                "test"
+            ],
+            "time": "2013-05-04 08:07:33"
+        },
         {
             "name": "sebastian/comparator",
             "version": "1.1.0",
@@ -703,6 +901,263 @@
             "homepage": "https://github.com/sebastianbergmann/version",
             "time": "2014-03-07 15:35:33"
         },
+        {
+            "name": "symfony/config",
+            "version": "v2.6.4",
+            "target-dir": "Symfony/Component/Config",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/Config.git",
+                "reference": "a9f781ba1221067d1f07c8cec0bc50f81b8d7408"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/Config/zipball/a9f781ba1221067d1f07c8cec0bc50f81b8d7408",
+                "reference": "a9f781ba1221067d1f07c8cec0bc50f81b8d7408",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3",
+                "symfony/filesystem": "~2.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.6-dev"
+                }
+            },
+            "autoload": {
+                "psr-0": {
+                    "Symfony\\Component\\Config\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Symfony Community",
+                    "homepage": "http://symfony.com/contributors"
+                },
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                }
+            ],
+            "description": "Symfony Config Component",
+            "homepage": "http://symfony.com",
+            "time": "2015-01-21 20:57:55"
+        },
+        {
+            "name": "symfony/console",
+            "version": "v2.6.4",
+            "target-dir": "Symfony/Component/Console",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/Console.git",
+                "reference": "e44154bfe3e41e8267d7a3794cd9da9a51cfac34"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/Console/zipball/e44154bfe3e41e8267d7a3794cd9da9a51cfac34",
+                "reference": "e44154bfe3e41e8267d7a3794cd9da9a51cfac34",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "require-dev": {
+                "psr/log": "~1.0",
+                "symfony/event-dispatcher": "~2.1",
+                "symfony/process": "~2.1"
+            },
+            "suggest": {
+                "psr/log": "For using the console logger",
+                "symfony/event-dispatcher": "",
+                "symfony/process": ""
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.6-dev"
+                }
+            },
+            "autoload": {
+                "psr-0": {
+                    "Symfony\\Component\\Console\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Symfony Community",
+                    "homepage": "http://symfony.com/contributors"
+                },
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                }
+            ],
+            "description": "Symfony Console Component",
+            "homepage": "http://symfony.com",
+            "time": "2015-01-25 04:39:26"
+        },
+        {
+            "name": "symfony/event-dispatcher",
+            "version": "v2.6.4",
+            "target-dir": "Symfony/Component/EventDispatcher",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/EventDispatcher.git",
+                "reference": "f75989f3ab2743a82fe0b03ded2598a2b1546813"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/EventDispatcher/zipball/f75989f3ab2743a82fe0b03ded2598a2b1546813",
+                "reference": "f75989f3ab2743a82fe0b03ded2598a2b1546813",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "require-dev": {
+                "psr/log": "~1.0",
+                "symfony/config": "~2.0,>=2.0.5",
+                "symfony/dependency-injection": "~2.6",
+                "symfony/expression-language": "~2.6",
+                "symfony/stopwatch": "~2.3"
+            },
+            "suggest": {
+                "symfony/dependency-injection": "",
+                "symfony/http-kernel": ""
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.6-dev"
+                }
+            },
+            "autoload": {
+                "psr-0": {
+                    "Symfony\\Component\\EventDispatcher\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Symfony Community",
+                    "homepage": "http://symfony.com/contributors"
+                },
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                }
+            ],
+            "description": "Symfony EventDispatcher Component",
+            "homepage": "http://symfony.com",
+            "time": "2015-02-01 16:10:57"
+        },
+        {
+            "name": "symfony/filesystem",
+            "version": "v2.6.4",
+            "target-dir": "Symfony/Component/Filesystem",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/Filesystem.git",
+                "reference": "a1f566d1f92e142fa1593f4555d6d89e3044a9b7"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/Filesystem/zipball/a1f566d1f92e142fa1593f4555d6d89e3044a9b7",
+                "reference": "a1f566d1f92e142fa1593f4555d6d89e3044a9b7",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.6-dev"
+                }
+            },
+            "autoload": {
+                "psr-0": {
+                    "Symfony\\Component\\Filesystem\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Symfony Community",
+                    "homepage": "http://symfony.com/contributors"
+                },
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                }
+            ],
+            "description": "Symfony Filesystem Component",
+            "homepage": "http://symfony.com",
+            "time": "2015-01-03 21:13:09"
+        },
+        {
+            "name": "symfony/stopwatch",
+            "version": "v2.6.4",
+            "target-dir": "Symfony/Component/Stopwatch",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/Stopwatch.git",
+                "reference": "e8da5286132ba75ce4b4275fbf0f4cd369bfd71c"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/Stopwatch/zipball/e8da5286132ba75ce4b4275fbf0f4cd369bfd71c",
+                "reference": "e8da5286132ba75ce4b4275fbf0f4cd369bfd71c",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.6-dev"
+                }
+            },
+            "autoload": {
+                "psr-0": {
+                    "Symfony\\Component\\Stopwatch\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Symfony Community",
+                    "homepage": "http://symfony.com/contributors"
+                },
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                }
+            ],
+            "description": "Symfony Stopwatch Component",
+            "homepage": "http://symfony.com",
+            "time": "2015-01-03 08:01:59"
+        },
         {
             "name": "symfony/yaml",
             "version": "v2.6.1",
diff --git a/tests/MageTest/Command/FactoryTest.php b/tests/MageTest/Command/FactoryTest.php
new file mode 100644
index 0000000..b91f9b6
--- /dev/null
+++ b/tests/MageTest/Command/FactoryTest.php
@@ -0,0 +1,63 @@
+<?php
+
+namespace MageTest\Command;
+
+use Mage\Command\Factory;
+use PHPUnit_Framework_TestCase;
+
+/**
+ * @group Mage_Command
+ * @group Mage_Command_Factory
+ *
+ * @group issue-167
+ */
+class FactoryTest extends PHPUnit_Framework_TestCase
+{
+    private $config;
+
+    protected function setUp()
+    {
+        $this->config = $this->getMock('Mage\Config');
+    }
+
+    public function testGet()
+    {
+        $command = Factory::get('add', $this->config);
+        $this->assertInstanceOf('Mage\\Command\\BuiltIn\\AddCommand', $command);
+    }
+
+    /**
+     * @expectedException \Exception
+     */
+    public function testGetClassNotFoundException()
+    {
+        $command = Factory::get('commanddoesntexist', $this->config);
+    }
+
+    public function testGetCustomCommand()
+    {
+        $this->getMockBuilder('Mage\\Command\\AbstractCommand')
+            ->setMockClassName('MyCommand')
+            ->getMock();
+
+        /**
+         * current workaround
+         * @link https://github.com/sebastianbergmann/phpunit-mock-objects/issues/134
+         */
+        class_alias('MyCommand', 'Command\\MyCommand');
+
+        $command = Factory::get('my-command', $this->config);
+        $this->assertInstanceOf('Command\\MyCommand', $command);
+    }
+
+    /**
+     * @expectedException \Exception
+     * @expectedExceptionMessage The command MyInconsistentCommand must be an instance of Mage\Command\AbstractCommand.
+     */
+    public function testGetInconsistencyException()
+    {
+        $this->getMock('Command\\MyInconsistentCommand');
+
+        $command = Factory::get('my-inconsistent-command', $this->config);
+    }
+}