Share code for virtualenv activation

Use execfile for sharing code as importing module does not work here.
Signed-off-by: Michal Čihař <michal@cihar.com>

openshift/virtualenv.py

+# -*- coding: utf-8 -*-
+#
+# Copyright © 2014 Daniel Tschan <tschan@puzzle.ch>
+#
+# This file is part of Weblate <http://weblate.org/>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+import os
+
+virtenv = os.environ['OPENSHIFT_PYTHON_DIR'] + '/virtenv/'
+virtualenv = os.path.join(virtenv, 'bin/activate_this.py')
+try:
+    execfile(virtualenv, dict(__file__=virtualenv))
+except IOError:
+    pass

openshift/wsgi.py

@@ -28,11 +28,8 @@ sys.path.append(os.path.join(os.environ['OPENSHIFT_REPO_DIR'], 'openshift'))
 
 os.environ['DJANGO_SETTINGS_MODULE'] = 'weblate.settings_openshift'
 
-virtenv = os.environ['OPENSHIFT_PYTHON_DIR'] + '/virtenv/'
-virtualenv = os.path.join(virtenv, 'bin/activate_this.py')
-try:
-    execfile(virtualenv, dict(__file__=virtualenv))
-except IOError:
-    pass
+execfile(os.path.join(
+    os.environ['OPENSHIFT_REPO_DIR'], 'openshift', 'virtualenv.py'
+))
 
 application = get_wsgi_application()

openshift/wsgi_install.py

@@ -22,12 +22,9 @@
 import os
 from string import Template
 
-virtenv = os.environ['OPENSHIFT_PYTHON_DIR'] + '/virtenv/'
-virtualenv = os.path.join(virtenv, 'bin/activate_this.py')
-try:
-    execfile(virtualenv, dict(__file__=virtualenv))
-except IOError:
-    pass
+execfile(os.path.join(
+    os.environ['OPENSHIFT_REPO_DIR'], 'openshift', 'virtualenv.py'
+))
 
 
 def application(environ, start_response):