diff --git a/src/Composer/Compiler.php b/src/Composer/Compiler.php
index 69e98e91a..6fccb8e96 100644
--- a/src/Composer/Compiler.php
+++ b/src/Composer/Compiler.php
@@ -164,10 +164,24 @@ class Compiler
         $util->save($pharFile, \Phar::SHA1);
     }
 
-    private function addFile($phar, $file, $strip = true)
+    /**
+     * @param \SplFileInfo $file
+     * @return string
+     */
+    private function getRelativeFilePath($file)
     {
-        $path = strtr(str_replace(dirname(dirname(__DIR__)).DIRECTORY_SEPARATOR, '', $file->getRealPath()), '\\', '/');
+        $realPath = $file->getRealPath();
+        $pathPrefix = dirname(dirname(__DIR__)).DIRECTORY_SEPARATOR;
+
+        $pos = strpos($realPath, $pathPrefix);
+        $relativePath = ($pos !== false) ? substr_replace($realPath, '', $pos, strlen($pathPrefix)) : $realPath;
 
+        return strtr($relativePath, '\\', '/');
+    }
+
+    private function addFile($phar, $file, $strip = true)
+    {
+        $path = $this->getRelativeFilePath($file);
         $content = file_get_contents($file);
         if ($strip) {
             $content = $this->stripWhitespace($content);
diff --git a/src/Composer/Downloader/PathDownloader.php b/src/Composer/Downloader/PathDownloader.php
index 213be04a1..250a01c3f 100644
--- a/src/Composer/Downloader/PathDownloader.php
+++ b/src/Composer/Downloader/PathDownloader.php
@@ -12,12 +12,14 @@
 
 namespace Composer\Downloader;
 
+use Composer\Package\Archiver\ArchivableFilesFinder;
 use Composer\Package\Dumper\ArrayDumper;
 use Composer\Package\PackageInterface;
 use Composer\Package\Version\VersionGuesser;
 use Composer\Package\Version\VersionParser;
 use Composer\Util\Platform;
 use Composer\Util\ProcessExecutor;
+use Composer\Util\Filesystem as ComposerFilesystem;
 use Symfony\Component\Filesystem\Exception\IOException;
 use Symfony\Component\Filesystem\Filesystem;
 
@@ -118,8 +120,12 @@ class PathDownloader extends FileDownloader implements VcsCapableDownloaderInter
 
         // Fallback if symlink failed or if symlink is not allowed for the package
         if (self::STRATEGY_MIRROR == $currentStrategy) {
+            $fs = new ComposerFilesystem();
+            $realUrl = $fs->normalizePath($realUrl);
+
             $this->io->writeError(sprintf('%sMirroring from %s', $isFallback ? '    ' : '', $url), false);
-            $fileSystem->mirror($realUrl, $path);
+            $iterator = new ArchivableFilesFinder($realUrl, array());
+            $fileSystem->mirror($realUrl, $path, $iterator);
         }
 
         $this->io->writeError('');
diff --git a/src/Composer/Installer.php b/src/Composer/Installer.php
index ca7deb3ac..55ec51baf 100644
--- a/src/Composer/Installer.php
+++ b/src/Composer/Installer.php
@@ -1309,7 +1309,7 @@ class Installer
             $skipPackages[$require->getTarget()] = true;
         }
 
-        $pool = new Pool;
+        $pool = new Pool('dev');
         $pool->addRepository($localOrLockRepo);
 
         $seen = array();
diff --git a/src/Composer/Repository/Vcs/GitLabDriver.php b/src/Composer/Repository/Vcs/GitLabDriver.php
index f2813db54..45cdac717 100644
--- a/src/Composer/Repository/Vcs/GitLabDriver.php
+++ b/src/Composer/Repository/Vcs/GitLabDriver.php
@@ -308,7 +308,12 @@ class GitLabDriver extends VcsDriver
         // we need to fetch the default branch from the api
         $resource = $this->getApiUrl();
         $this->project = JsonFile::parseJson($this->getContents($resource, true), $resource);
-        $this->isPrivate = $this->project['visibility'] !== 'public';
+        if (isset($this->project['visibility'])) {
+            $this->isPrivate = $this->project['visibility'] !== 'public';
+        } else {
+            // client is not authendicated, therefore repository has to be public 
+            $this->isPrivate = false;
+        }
     }
 
     protected function attemptCloneFallback()
diff --git a/tests/Composer/Test/Repository/Vcs/GitLabDriverTest.php b/tests/Composer/Test/Repository/Vcs/GitLabDriverTest.php
index 1564412d8..25634138f 100644
--- a/tests/Composer/Test/Repository/Vcs/GitLabDriverTest.php
+++ b/tests/Composer/Test/Repository/Vcs/GitLabDriverTest.php
@@ -142,6 +142,44 @@ JSON;
         return $driver;
     }
 
+        /**
+         * @dataProvider getInitializeUrls
+         */
+        public function testInitializePublicProjectAsAnonymous($url, $apiUrl)
+        {
+            // @link http://doc.gitlab.com/ce/api/projects.html#get-single-project
+            $projectData = <<<JSON
+{
+    "id": 17,
+    "default_branch": "mymaster",
+    "http_url_to_repo": "https://gitlab.com/mygroup/myproject.git",
+    "ssh_url_to_repo": "git@gitlab.com:mygroup/myproject.git",
+    "last_activity_at": "2014-12-01T09:17:51.000+01:00",
+    "name": "My Project",
+    "name_with_namespace": "My Group / My Project",
+    "path": "myproject",
+    "path_with_namespace": "mygroup/myproject",
+    "web_url": "https://gitlab.com/mygroup/myproject"
+}
+JSON;
+
+        $this->remoteFilesystem
+            ->getContents('gitlab.com', $apiUrl, false, array())
+            ->willReturn($projectData)
+            ->shouldBeCalledTimes(1)
+        ;
+
+        $driver = new GitLabDriver(array('url' => $url), $this->io->reveal(), $this->config, $this->process->reveal(), $this->remoteFilesystem->reveal());
+        $driver->initialize();
+
+        $this->assertEquals($apiUrl, $driver->getApiUrl(), 'API URL is derived from the repository URL');
+        $this->assertEquals('mymaster', $driver->getRootIdentifier(), 'Root identifier is the default branch in GitLab');
+        $this->assertEquals('https://gitlab.com/mygroup/myproject.git', $driver->getRepositoryUrl(), 'The repository URL is the SSH one by default');
+        $this->assertEquals('https://gitlab.com/mygroup/myproject', $driver->getUrl());
+
+        return $driver;
+    }
+
     public function testGetDist()
     {
         $driver = $this->testInitialize('https://gitlab.com/mygroup/myproject', 'https://gitlab.com/api/v4/projects/mygroup%2Fmyproject');