Minor change to clarify shared folder creation.

[omvzfs.git] / src / Dataset.php

diff --git a/src/Dataset.php b/src/Dataset.php
index 28bd4d1fd864ec40a3322d6b239b12ac2b933604..65cca318d0af348f3eedb45b4458e4d84355ad1a 100644 (file)
--- a/src/Dataset.php
+++ b/src/Dataset.php
@@ -56,21 +56,25 @@ class OMVModuleZFSDataset {
         * @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"];
                }
-               $cmd = "zfs list -r -o name -H -t snapshot " . $name . " 2>&1";
-               $this->exec($cmd, $out2, $res2);
-               foreach ($out2 as $line2) {
-                       $this->snapshots[$line2] = new OMVModuleZFSSnapshot($line2);
+               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();
                }
        }
 
@@ -101,7 +105,11 @@ class OMVModuleZFSDataset {
         * @access public
         */
        public function getSnapshots() {
-               return $this->snapshots;
+               if (isset($this->snapshots)) {
+                       return $this->snapshots;
+               } else {
+                       return array();
+               }
        }
 
        /**
@@ -173,17 +181,15 @@ class OMVModuleZFSDataset {
        }
 
        /**
-        * 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"];
        }
 
@@ -287,6 +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).