Add environment debugging to ensure-twine role

This looks up some runtime environment information and emits it for
debugging.

Change-Id: I7ac121f38d4e01e4f0a2a51199a8da5d055c5030
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>

roles/ensure-twine/files/debug_environment.py

@@ -0,0 +1,37 @@
+#!/usr/bin/env python3
+# 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.
+
+"""This is to aid in debugging what virtual environment we are in."""
+
+import os
+import pprint
+import sys
+
+
+environment = {}
+props = [
+    'base_exec_prefix',
+    'executable',
+    'path',
+    'prefix',
+    'real_prefix',
+    'version']
+
+for prop in props:
+    if hasattr(sys, prop):
+        environment[prop] = getattr(sys, prop)
+
+environment['VIRTUAL_ENV'] = os.environ.get('VIRTUAL_ENV')
+
+pprint.pprint(environment)

roles/ensure-twine/tasks/main.yaml

@@ -8,6 +8,13 @@
     pypi_twine_executable: "{{ register_twine.stdout }}"
   when: register_twine.rc == 0
 
+- name: Read runtime environment
+  script: debug_environment.py
+  register: debug_environment
+
+- name: Print runtime environment
+  debug: "{{ debug_environment.stdout }}"
+
 - name: Ensure twine is installed
   block:
     - name: Ensure twine is installed