FIXME: Use SettingPlugin to register config files

/* Incomplete version, the missing pieces are:
 * 1. fix symlinks location
 * 2. make sure LTS works well (disable vt_settings on LTS)
 */

Recently Avocado introduced a SettingPlugin, that allows Avocado plugins
to register/modify paths to be processed by "avocado.core.settings".
Let's use this instead of symlinking of our etc config files.

For now we also have to keep the symlinking because the avocado 52.x
(LTS) does not support this feature.

Signed-off-by: Lukáš Doktor <[email protected]>

avocado_vt/plugins/vt_settings.py

@@ -0,0 +1,33 @@
+# 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 2 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 LICENSE for more details.
+#
+# Copyright: Red Hat Inc. 2018
+# Author: Lukas Doktor <[email protected]>
+
+"""
+Avocado plugin that extends the settings path of our config paths
+"""
+
+import os
+from pkg_resources import resource_filename
+from pkg_resources import resource_isdir
+from pkg_resources import resource_listdir
+
+from avocado.core.plugin_interfaces import Settings
+
+
+class VTSettings(Settings):
+    def adjust_settings_paths(self, paths):
+        base = resource_filename('avocado_vt', 'conf.d')
+        paths.extend([os.path.join(base, conf)
+                      for conf in resource_listdir('avocado_vt', 'conf.d')
+                      if conf.endswith('.conf')])
+

setup.py

@@ -106,6 +106,9 @@ def pre_post_plugin_type():
           package_data={"virttest": ["*.*"]},
           data_files=get_data_files(),
           entry_points={
+              'avocado.plugins.settings': [
+                  'vt-settings = avocado_vt.plugins.vt_settings:VTSettings',
+                  ],
               'avocado.plugins.cli': [
                   'vt-list = avocado_vt.plugins.vt_list:VTLister',
                   'vt = avocado_vt.plugins.vt:VTRun',