From ce80e672caa299afe786a852afa986abfa28e633 Mon Sep 17 00:00:00 2001
From: Joshua Harlow <harlowja@yahoo-inc.com>
Date: Wed, 29 Oct 2014 17:12:31 -0700
Subject: Only use datafiles and initsys addon outside virtualenvs

To make it so that cloud-init is installable in a virtualenv
where it can be tested in an isolated scenario we need to avoid
using and including datafiles (which won't be written into the
virtualenv) and also avoid using our initsys helper class which
also adds on its own files when we are being ran from a virtualenv.
---
 setup.py | 55 +++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 37 insertions(+), 18 deletions(-)

diff --git a/setup.py b/setup.py
index bd41bc91..3e188089 100755
--- a/setup.py
+++ b/setup.py
@@ -23,6 +23,7 @@
 from glob import glob
 
 import os
+import sys
 
 import setuptools
 from setuptools.command.install import install
@@ -86,6 +87,17 @@ if os.uname()[0] == 'FreeBSD':
     ETC = "/usr/local/etc"
 
 
+# Avoid having datafiles installed in a virtualenv...
+def in_virtualenv():
+    try:
+        if sys.real_prefix == sys.prefix:
+            return False
+        else:
+            return True
+    except AttributeError:
+        return False
+
+
 def get_version():
     cmd = ['tools/read-version']
     (ver, _e) = tiny_p(cmd)
@@ -135,6 +147,29 @@ class InitsysInstallData(install):
         self.distribution.reinitialize_command('install_data', True)
 
 
+if in_virtualenv():
+    data_files = []
+    cmdclass = {}
+else:
+    data_files = [
+        (ETC + '/cloud', glob('config/*.cfg')),
+        (ETC + '/cloud/cloud.cfg.d', glob('config/cloud.cfg.d/*')),
+        (ETC + '/cloud/templates', glob('templates/*')),
+        (USR + '/lib/cloud-init', ['tools/uncloud-init',
+                                   'tools/write-ssh-key-fingerprints']),
+        (USR + '/share/doc/cloud-init', [f for f in glob('doc/*') if is_f(f)]),
+        (USR + '/share/doc/cloud-init/examples',
+            [f for f in glob('doc/examples/*') if is_f(f)]),
+        (USR + '/share/doc/cloud-init/examples/seed', 
+            [f for f in glob('doc/examples/seed/*') if is_f(f)]),
+    ]
+    # Use a subclass for install that handles
+    # adding on the right init system configuration files
+    cmdclass = {
+        'install': InitsysInstallData,
+    }
+
+
 setuptools.setup(name='cloud-init',
       version=get_version(),
       description='EC2 initialisation magic',
@@ -146,23 +181,7 @@ setuptools.setup(name='cloud-init',
                'tools/cloud-init-per',
                ],
       license='GPLv3',
-      data_files=[(ETC + '/cloud', glob('config/*.cfg')),
-                  (ETC + '/cloud/cloud.cfg.d', glob('config/cloud.cfg.d/*')),
-                  (ETC + '/cloud/templates', glob('templates/*')),
-                  (USR + '/lib/cloud-init',
-                    ['tools/uncloud-init',
-                     'tools/write-ssh-key-fingerprints']),
-                  (USR + '/share/doc/cloud-init',
-                   [f for f in glob('doc/*') if is_f(f)]),
-                  (USR + '/share/doc/cloud-init/examples',
-                   [f for f in glob('doc/examples/*') if is_f(f)]),
-                  (USR + '/share/doc/cloud-init/examples/seed',
-                   [f for f in glob('doc/examples/seed/*') if is_f(f)]),
-                 ],
+      data_files=data_files,
       install_requires=read_requires(),
-      cmdclass={
-          # Use a subclass for install that handles
-          # adding on the right init system configuration files
-          'install': InitsysInstallData,
-      },
+      cmdclass=cmdclass,
       )
-- 
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