Add basic renderspec test integration

Use renderspec to render the jinja2 templates into real RPM spec
files. Abort if the conversion doesn't work.

Change-Id: I31edbe16129a627236db0c980602ca23a0ba2a4a

test-requirements.txt

@@ -0,0 +1 @@
+-e git+https://git.openstack.org/openstack/renderspec#egg=renderspec

tools/run_renderspec.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+set -eux
+
+basedir=$1
+specdir=${basedir}/openstack/
+
+WORKSPACE=${WORKSPACE:-$basedir}
+
+echo "run renderspec over specfiles from ${specdir}"
+for spec in ${specdir}/**/*.spec.j2; do
+    mkdir -p $WORKSPACE/logs/
+    for specstyle in "suse" "fedora"; do
+        echo "run ${spec} for ${specstyle}"
+        renderspec --spec-style ${specstyle} ${spec} \
+                   -o $WORKSPACE/logs/`basename ${spec}`.${specstyle}
+    done
+done

tox.ini

@@ -0,0 +1,20 @@
+[tox]
+minversion = 1.8
+envlist = rpm-packaging-lint
+skipsdist = True
+
+[testenv]
+setenv = VIRTUAL_ENV={envdir}
+install_command = pip install -U {opts} {packages}
+deps = -r{toxinidir}/test-requirements.txt
+passenv = http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY
+
+[tox:jenkins]
+downloadcache = ~/cache/pip
+
+[testenv:rpm-packaging-lint]
+commands =
+  {toxinidir}/tools/run_renderspec.sh {toxinidir}
+
+[testenv:venv]
+commands = {posargs}