X-Git-Url: http://git.datanom.net/omvzfs.git/blobdiff_plain/ddcd45581e5728b126260ed27c6f52a43b2699e6..6b3ce31b7350912d6080771f0f02f0990fdcbf5e:/src/Dataset.php

diff --git a/src/Dataset.php b/src/Dataset.php
index c766f4e..65cca31 100644
--- a/src/Dataset.php
+++ b/src/Dataset.php
@@ -56,24 +56,25 @@ class OMVModuleZFSDataset {
 	 * @access public
 	 */
 	public function __construct($name) {
+		$ds_exists = true;
 		$this->name = $name;
-		$qname = preg_quote($name, '/');
-		$cmd = "zfs list -H";
-		$this->exec($cmd, $out, $res);
-		foreach ($out as $line) {
-			if (preg_match('/^' . $qname . '\t.*$/', $line)) {
-				$this->updateAllProperties();
-				$this->mountPoint = $this->properties["mountpoint"]["value"];
-				continue;
-			}
+		$cmd = "zfs list -H -t filesystem " . $name . " 2>&1";
+		try {
+			$this->exec($cmd, $out, $res);
+			$this->updateAllProperties();
+			$this->mountPoint = $this->properties["mountpoint"]["value"];
 		}
-		$qname = preg_quote($name . "@", '/');
-		$cmd = "zfs list -H -t snapshot";
-		$this->exec($cmd, $out, $res);
-		foreach ($out as $line) {
-			if (preg_match('/^(' . $qname . '[^\s]+)\t.*$/', $line, $res)) {
-				$this->snapshots[$res[1]] = new OMVModuleZFSSnapshot($res[1]);
+		catch (OMVModuleZFSException $e) {
+			$ds_exists = false;
+		}
+		if ($ds_exists) {
+			$cmd = "zfs list -r -d 1 -o name -H -t snapshot " . $name . " 2>&1";
+			$this->exec($cmd, $out2, $res2);
+			foreach ($out2 as $line2) {
+					$this->snapshots[$line2] = new OMVModuleZFSSnapshot($line2);
 			}
+		} else {
+			$this->create();
 		}
 	}
 
@@ -104,14 +105,19 @@ class OMVModuleZFSDataset {
 	 * @access public
 	 */
 	public function getSnapshots() {
-		return $this->snapshots;
+		if (isset($this->snapshots)) {
+			return $this->snapshots;
+		} else {
+			return array();
+		}
 	}
 
 	/**
 	 * Get a single property value associated with the Dataset
-	 *
+	 * 
 	 * @param string $property Name of the property to fetch
-	 * @return array The returned array key 0=property value and key 1=property source.
+	 * @return array The returned array with the property. The property is an associative array with
+	 * two elements, <value> and <source>.
 	 * @access public
 	 */
 	public function getProperty($property) {
@@ -119,11 +125,10 @@ class OMVModuleZFSDataset {
 	}
 
 	/**
-	 * Get an associative array of all properties associated with the Dataset.
-	 *
-	 * @return array $properties Each entry is an array where key 0=property value and key
-	 * 1=property source.
-	 *
+	 * Get an associative array of all properties associated with the Snapshot
+	 * 
+	 * @return array $properties Each entry is an associative array with two elements
+	 * <value> and <source>
 	 * @access public
 	 */
 	public function getProperties() {
@@ -139,7 +144,7 @@ class OMVModuleZFSDataset {
 	 */
 	public function setProperties($properties) {
 		foreach ($properties as $newpropertyk => $newpropertyv) {
-			$cmd = "zfs set " . $newpropertyk . "=" . $newpropertyv . " " . $this->name;
+			$cmd = "zfs set " . $newpropertyk . "=" . $newpropertyv . " " . $this->name . " 2>&1";
 			$this->exec($cmd,$out,$res);
 			$this->updateProperty($newpropertyk);
 		}
@@ -152,7 +157,7 @@ class OMVModuleZFSDataset {
 	 * @access private
 	 */ 
 	private function updateAllProperties() {
-		$cmd = "zfs get -H all " . $this->name;
+		$cmd = "zfs get -H all " . $this->name . " 2>&1";
 		$this->exec($cmd,$out,$res);
 		unset($this->properties);
 		foreach ($out as $line) {
@@ -169,24 +174,22 @@ class OMVModuleZFSDataset {
 	 * @access private
 	 */
 	private function updateProperty($property) {
-		$cmd = "zfs get -H " . $property . " " . $this->name;
+		$cmd = "zfs get -H " . $property . " " . $this->name . " 2>&1";
 		$this->exec($cmd,$out,$res);
 		$tmpary = preg_split('/\t+/', $out[0]);
 		$this->properties["$tmpary[1]"] = array("value" => $tmpary[2], "source" => $tmpary[3]);
 	}
 
 	/**
-	 * Craete a Dataset on commandline. Optionally provide a number of properties to set.
+	 * Craete a Dataset on commandline.
 	 *
-	 * @param array $properties Properties to set when creating the dataset.
 	 * @return void
-	 * @access public
+	 * @access private
 	 */
-	public function create(array $properties = null) {
+	private function create() {
 		$cmd = "zfs create -p " . $this->name . " 2>&1";
 		$this->exec($cmd,$out,$res);
 		$this->updateAllProperties();
-		$this->setProperties($properties);
 		$this->mountPoint = $this->properties["mountpoint"]["value"];
 	}
 
@@ -197,7 +200,7 @@ class OMVModuleZFSDataset {
 	 * @access public
 	 */
 	public function destroy() {
-		$cmd = "zfs destroy " . $this->name;
+		$cmd = "zfs destroy " . $this->name . " 2>&1";
 		$this->exec($cmd,$out,$res);
 	}
 
@@ -290,6 +293,49 @@ class OMVModuleZFSDataset {
 		unset($this->snapshots[$snap_name]);
 	}
 
+	/**
+	* Check if the Dataset is a clone or not.
+	*
+	* @return bool
+	* @access public
+	*/
+	public function isClone() {
+		$origin = $this->getProperty("origin");
+		if (strlen($origin["value"]) > 0) {
+			return true;
+		} else {
+			return false;
+		}
+	}
+
+	/**
+	* Get the origin of the Dataset if it's a clone.
+	*
+	* @return string The name of the origin if it exists. Otherwise an empty string.
+	* @access public
+	*/
+	public function getOrigin() {
+		if ($this->isClone()) {
+			$origin = $this->getProperty("origin");
+			return $origin['value'];
+		} else {
+			return "";
+		}
+	}
+
+	/**
+	* Promotes the Dataset if it's a clone.
+	*
+	* @return void
+	* @access public
+	*/
+	public function promote() {
+		if ($this->isClone()) {
+			$cmd = "zfs promote " . $this->name . " 2>&1";
+			$this->exec($cmd,$out,$res);
+		}
+	}
+
 	/**
 	 * Helper function to execute a command and throw an exception on error
 	 * (requires stderr redirected to stdout for proper exception message).