* @access public
*/
public function __construct($name) {
+ $ds_exists = true;
$this->name = $name;
- $qname = preg_quote($name, '/');
- $cmd = "zfs list -H 2>&1";
- $this->exec($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 2>&1";
- $this->exec($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();
}
}
* @access public
*/
public function getSnapshots() {
- return $this->snapshots;
+ if (isset($this->snapshots)) {
+ return $this->snapshots;
+ } else {
+ return array();
+ }
}
/**
}
/**
- * 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 = $this->properties["mountpoint"]["value"];
}
unset($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).