Support jinja2 in rally.ui.utils

Use pkgutil to get base templates path.
Move ci templates to rally.ui package.
Remove cli functionality and use rally.ui directly in CI code.

Change-Id: If88ba2ed851eb9796ef5fae84398b1c185dbab0c

tests/ci/rally-gate.sh

@@ -63,8 +63,7 @@ rally show keypairs
 rally -v --rally-debug task start --task $TASK $TASK_ARGS
 
 mkdir -p rally-plot/extra
-python $BASE/new/rally/rally/ui/utils.py render\
+python $BASE/new/rally/tests/ci/render.py ci/index.mako > rally-plot/extra/index.html
-    tests/ci/rally-gate/index.mako > rally-plot/extra/index.html
 cp $TASK rally-plot/task.txt
 tar -czf rally-plot/plugins.tar.gz -C $RALLY_PLUGINS_DIR .
 rally task results | python -m json.tool > rally-plot/results.json

tests/ci/render.py

@@ -0,0 +1,37 @@
+# Copyright 2015: Mirantis Inc.
+# All Rights Reserved.
+#
+#    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.
+
+from __future__ import print_function
+import re
+import sys
+
+from rally.ui import utils
+
+
+HELP_MESSAGE = (
+    "Usage:\n\t"
+    "render.py ci/template.mako"
+    "[<key-1>=<value-1> <key-2>=<value-2> ...]\n\n\t"
+    "Where key-1,value-1 and key-2,value-2 are key pairs of template.")
+
+
+if __name__ == "__main__":
+    args = sys.argv
+    if (len(args) < 1 or not all(re.match("^[^=]+=[^=]+$",
+                                 arg) for arg in args[2:])):
+        print(HELP_MESSAGE, file=sys.stderr)
+        sys.exit(1)
+    render_kwargs = dict([arg.split("=") for arg in args[2:]])
+    print(utils.get_template(args[1]).render(**render_kwargs))