From f2dce5f9c3ac83f23909e7e3d505a718cec7225f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Carlos=20Mart=C3=ADn?= <cmartin@opennebula.org>
Date: Wed, 20 Feb 2013 16:53:41 +0100
Subject: [PATCH] Feature #1224: New command onevm snapshot-revert

---
 src/cli/onevm                              | 11 +++++++++++
 src/oca/ruby/opennebula/virtual_machine.rb | 13 ++++++++++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/src/cli/onevm b/src/cli/onevm
index 318fa7e3b4..6561653755 100755
--- a/src/cli/onevm
+++ b/src/cli/onevm
@@ -633,6 +633,17 @@ cmd=CommandParser::CmdParser.new(ARGV) do
         end
     end
 
+    # TODO: Write a more complete description:
+    snapshot_revert_desc = <<-EOT.unindent
+        Reverts a VM to a saved snapshot
+    EOT
+
+    command :"snapshot-revert", snapshot_revert_desc, :vmid, :snapshot_id do
+        helper.perform_action(args[0],options,"snapshot reverted") do |o|
+            o.snapshot_revert(args[1])
+        end
+    end
+
     list_desc = <<-EOT.unindent
         Lists VMs in the pool
     EOT
diff --git a/src/oca/ruby/opennebula/virtual_machine.rb b/src/oca/ruby/opennebula/virtual_machine.rb
index 0ee51d1f0a..1c4b055319 100644
--- a/src/oca/ruby/opennebula/virtual_machine.rb
+++ b/src/oca/ruby/opennebula/virtual_machine.rb
@@ -38,7 +38,8 @@ module OpenNebula
             :detach         => "vm.detach",
             :rename         => "vm.rename",
             :update         => "vm.update",
-            :snapshotcreate => "vm.snapshotcreate"
+            :snapshotcreate => "vm.snapshotcreate",
+            :snapshotrevert => "vm.snapshotrevert"
         }
 
         VM_STATE=%w{INIT PENDING HOLD ACTIVE STOPPED SUSPENDED DONE FAILED
@@ -420,6 +421,16 @@ module OpenNebula
             return call(VM_METHODS[:snapshotcreate], @pe_id, name)
         end
 
+        # Creates a new VM snapshot
+        #
+        # @param snap_id [Integer] Id of the snapshot
+        #
+        # @return [nil, OpenNebula::Error] nil in case of success, Error
+        #   otherwise
+        def snapshot_revert(snap_id)
+            return call(VM_METHODS[:snapshotrevert], @pe_id, snap_id)
+        end
+
         #######################################################################
         # Helpers to get VirtualMachine information
         #######################################################################