Fix package version when using pbr

PBR adds a git revision to package version. We don't need it.
Additionally it breaks ISO build since script is looking
for version x.y.z and package has version x.y.z.dev0.qwerty123

Change-Id: I32eb6ca221c62f35de4318b424526a7282595fcf
Related: blueprint granular-deployment-based-on-tasks

setup.cfg

@@ -23,6 +23,7 @@ packages =
 [global]
 setup-hooks =
     pbr.hooks.setup_hook
+    tasks_validator.setup_hooks.fix_version
 
 [wheel]
 universal = 1

tasks_validator/setup_hooks.py

@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+
+#    Copyright 2015 Mirantis, Inc.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+
+def fix_version(config):
+    """Monkeypatch for PBR to do not add commit id to package version."""
+    import pbr
+    import pbr.packaging
+
+    pbr.packaging._get_version_from_git = lambda pre_version: pre_version