postpone the cost of setting up some of the external storage backends untill we actually need it

1 files changed, 26 insertions, 0 deletions

diff --git a/apps/files_external/lib/streamwrapper.php b/apps/files_external/lib/streamwrapper.php
index 750bdbaf4d4..bc1c95c5e8f 100644
--- a/apps/files_external/lib/streamwrapper.php
+++ b/apps/files_external/lib/streamwrapper.php
@@ -9,13 +9,29 @@
 namespace OC\Files\Storage;
 
 abstract class StreamWrapper extends \OC\Files\Storage\Common{
+	private $ready = false;
+
+	protected function init(){
+		if($this->ready){
+			return;
+		}
+		$this->ready = true;
+
+		//create the root folder if necesary
+		if(!$this->is_dir('')) {
+			$this->mkdir('');
+		}
+	}
+
 	abstract public function constructUrl($path);
 
 	public function mkdir($path) {
+		$this->init();
 		return mkdir($this->constructUrl($path));
 	}
 
 	public function rmdir($path) {
+		$this->init();
 		if($this->file_exists($path)) {
 			$succes=rmdir($this->constructUrl($path));
 			clearstatcache();
@@ -26,10 +42,12 @@ abstract class StreamWrapper extends \OC\Files\Storage\Common{
 	}
 
 	public function opendir($path) {
+		$this->init();
 		return opendir($this->constructUrl($path));
 	}
 
 	public function filetype($path) {
+		$this->init();
 		return filetype($this->constructUrl($path));
 	}
 
@@ -42,16 +60,19 @@ abstract class StreamWrapper extends \OC\Files\Storage\Common{
 	}
 
 	public function file_exists($path) {
+		$this->init();
 		return file_exists($this->constructUrl($path));
 	}
 
 	public function unlink($path) {
+		$this->init();
 		$succes=unlink($this->constructUrl($path));
 		clearstatcache();
 		return $succes;
 	}
 
 	public function fopen($path,$mode) {
+		$this->init();
 		return fopen($this->constructUrl($path),$mode);
 	}
 
@@ -60,6 +81,7 @@ abstract class StreamWrapper extends \OC\Files\Storage\Common{
 	}
 
 	public function touch($path,$mtime=null) {
+		$this->init();
 		if(is_null($mtime)) {
 			$fh=$this->fopen($path,'a');
 			fwrite($fh,'');
@@ -70,18 +92,22 @@ abstract class StreamWrapper extends \OC\Files\Storage\Common{
 	}
 
 	public function getFile($path,$target) {
+		$this->init();
 		return copy($this->constructUrl($path),$target);
 	}
 
 	public function uploadFile($path,$target) {
+		$this->init();
 		return copy($path,$this->constructUrl($target));
 	}
 
 	public function rename($path1,$path2) {
+		$this->init();
 		return rename($this->constructUrl($path1),$this->constructUrl($path2));
 	}
 
 	public function stat($path) {
+		$this->init();
 		return stat($this->constructUrl($path));
 	}