X-Git-Url: http://git.datanom.net/omvzfs.git/blobdiff_plain/ddcd45581e5728b126260ed27c6f52a43b2699e6..503ffcc8df9da14d4002f02f02b67face4e7edaf:/src/Snapshot.php

diff --git a/src/Snapshot.php b/src/Snapshot.php
index ef90283..fa51be0 100644
--- a/src/Snapshot.php
+++ b/src/Snapshot.php
@@ -39,15 +39,18 @@ class OMVModuleZFSSnapshot {
 	 * @access public
 	 */
 	public function __construct($name) {
+		$snap_exists = true;
 		$this->name = $name;
-		$qname = preg_quote($name, '/');
-		$cmd = "zfs list -H -t snapshot 2>&1";
-		$this->exec($cmd, $out, $res);
-		foreach ($out as $line) {
-			if (preg_match('/^' . $qname . '\t.*$/', $line)) {
-				$this->updateAllProperties();
-				continue;
-			}
+		$cmd = "zfs list -H -t snapshot " .$name . " 2>&1";
+		try {
+			$this->exec($cmd, $out, $res);
+			$this->updateAllProperties();
+		}
+		catch (OMVModuleZFSException $e) {
+			$snap_exists = false;
+		}
+		if (!$snap_exists) {
+			$this->create();
 		}
 	}
 
@@ -134,17 +137,15 @@ class OMVModuleZFSSnapshot {
 	}
 
 	/**
-	 * Craete a Snapshot on commandline. Optionally provide a number of properties to set.
+	 * Create a Snapshot 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 snapshot " . $this->name . " 2>&1";
 		$this->exec($cmd,$out,$res);
 		$this->updateAllProperties();
-		$this->setProperties($properties);
 	}
 
 	/**
@@ -158,6 +159,29 @@ class OMVModuleZFSSnapshot {
 		$this->exec($cmd,$out,$res);
 	}
 
+	/**
+	 * Rollback a Snapshot on commandline.
+	 *
+	 * @return void
+	 * @access public
+	 */
+	public function rollback() {
+		$cmd = "zfs rollback " . $this->name . " 2>&1";
+		$this->exec($cmd,$out,$res);
+	}
+
+	/**
+	 * Clones a Snapshot on commandline.
+	 *
+	 * @param string $newname
+	 * @return void
+	 * @access public
+	 */
+	public function clonesnap($newname) {
+		$cmd = "zfs clone -p " . $this->name . " " . $newname . " 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).