From 07800a0e675e14fc06e2d2bd1167fa513a9d4039 Mon Sep 17 00:00:00 2001
From: Bahtiar `kalkin-` Gadimov <bahtiar@gadimov.de>
Date: Wed, 27 Apr 2016 21:51:40 +0200
Subject: [PATCH] Add Volume.eq, neq and hash

---
 qubes/storage/__init__.py | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/qubes/storage/__init__.py b/qubes/storage/__init__.py
index d98d56c4..5b0505f0 100644
--- a/qubes/storage/__init__.py
+++ b/qubes/storage/__init__.py
@@ -30,13 +30,12 @@ from __future__ import absolute_import
 import os
 import os.path
 
-import pkg_resources
 import lxml.etree
-
+import pkg_resources
 import qubes
+import qubes.devices
 import qubes.exc
 import qubes.utils
-import qubes.devices
 
 STORAGE_ENTRY_POINT = 'qubes.storage'
 
@@ -89,6 +88,16 @@ class Volume(object):
         return qubes.devices.BlockDevice(self.path, self.name, self.script,
             self.rw, self.domain, self.devtype)
 
+    def __eq__(self, other):
+        return other.pool == self.pool and other.vid == self.vid \
+            and other.volume_type == self.volume_type
+
+    def __neq__(self, other):
+        return not self.__eq__(other)
+
+    def __hash__(self):
+        return hash('%s:%s %s' % (self.pool, self.vid, self.volume_type))
+
 
 class Storage(object):
     ''' Class for handling VM virtual disks.