Fix PhaseLoggerMixin in case of compose has _logger = None

80fa723 breaks pungi-config-validate that using ValidationCompose
with _logger set to None.

Signed-off-by: Qixiang Wan <qwan@redhat.com>

pungi/phases/base.py

@@ -162,6 +162,8 @@ class PhaseLoggerMixin(object):
     """
     def __init__(self, *args, **kwargs):
         super(PhaseLoggerMixin, self).__init__(*args, **kwargs)
+        self.logger = None
+        if self.compose._logger and self.compose._logger.handlers:
             self.logger = logging.getLogger(self.name.upper())
             self.logger.setLevel(logging.DEBUG)
             format = "%(asctime)s [%(name)-16s] [%(levelname)-8s] %(message)s"

tests/test_config_validate_script.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+
+import unittest
+import mock
+import os
+import subprocess
+import sys
+
+
+HERE = os.path.abspath(os.path.dirname(__file__))
+BINDIR = os.path.join(HERE, '../bin')
+PUNGI_CONFIG_VALIDATE = os.path.join(BINDIR, 'pungi-config-validate')
+
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
+
+from tests import helpers
+
+
+class ConfigValidateScriptTest(helpers.PungiTestCase):
+
+    @mock.patch('kobo.shortcuts.run')
+    def test_validate_dummy_config(self, run):
+        DUMMY_CONFIG = os.path.join(HERE, 'data/dummy-pungi.conf')
+        p = subprocess.Popen([PUNGI_CONFIG_VALIDATE, DUMMY_CONFIG],
+                             stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+        (stdout, stderr) = p.communicate()
+        self.assertEqual(0, p.returncode)
+        self.assertEqual('', stdout)
+        self.assertEqual('', stderr)
+
+if __name__ == '__main__':
+    unittest.main()