Compatibility with some old modules (#2514)

- old click differently handles argument names
- old pytest doesn't like `from mock import call`

Bump version and update release notes.

Close: https://github.com/zalando/patroni/issues/2508
Close: https://github.com/zalando/patroni/issues/2512

docs/releases.rst

@@ -3,6 +3,16 @@
 Release notes
 =============
 
+Version 2.1.7
+-------------
+
+**Bugfixes**
+
+- Fixed little incompatibilities with legacy python modules (Alexander Kukushkin)
+
+  They prevented from building/running Patroni on Debian buster/Ubuntu bionic.
+
+
 Version 2.1.6
 -------------
 

patroni/ctl.py

@@ -143,7 +143,7 @@ option_insecure = click.option('-k', '--insecure', is_flag=True, help='Allow con
 @click.group()
 @click.option('--config-file', '-c', help='Configuration file',
               envvar='PATRONICTL_CONFIG_FILE', default=CONFIG_FILE_PATH)
-@click.option('--dcs-url', '--dcs', '-d', help='The DCS connect url', envvar='DCS_URL')
+@click.option('--dcs-url', '--dcs', '-d', 'dcs_url', help='The DCS connect url', envvar='DCS_URL')
 @option_insecure
 @click.pass_context
 def ctl(ctx, config_file, dcs_url, insecure):

patroni/version.py

@@ -1 +1 @@
-__version__ = '2.1.6'
+__version__ = '2.1.7'

tests/test_ctl.py

@@ -39,7 +39,7 @@ class TestCtl(unittest.TestCase):
             self.assertRaises(PatroniCtlException, load_config, './non-existing-config-file', None)
 
         with patch('os.path.exists', Mock(return_value=True)), \
-             patch('patroni.config.Config._load_config_path', Mock(return_value={})):
+                patch('patroni.config.Config._load_config_path', Mock(return_value={})):
             load_config(CONFIG_FILE_PATH, None)
             mock_logger_debug.assert_called_once()
             self.assertEqual(('Ignoring configuration file "%s". It does not exists or is not readable.',

tests/test_kubernetes.py

@@ -1,11 +1,12 @@
 import base64
 import datetime
 import json
+import mock
 import socket
 import time
 import unittest
 
-from mock import call, Mock, PropertyMock, mock_open, patch
+from mock import Mock, PropertyMock, mock_open, patch
 from patroni.dcs.kubernetes import k8s_client, k8s_config, K8sConfig, K8sConnectionFailed,\
         K8sException, K8sObject, Kubernetes, KubernetesError, KubernetesRetriableException,\
         Retry, RetryFailedError, SERVICE_HOST_ENV_NAME, SERVICE_PORT_ENV_NAME
@@ -134,7 +135,7 @@ class TestK8sConfig(unittest.TestCase):
             mock_atexit.assert_called_once()
             mock_remove.side_effect = OSError
             mock_atexit.call_args[0][0]()  # call _cleanup_temp_files
-            mock_remove.assert_has_calls([call('1.tmp'), call('2.tmp')])
+            mock_remove.assert_has_calls([mock.call('1.tmp'), mock.call('2.tmp')])
 
 
 @patch('urllib3.PoolManager.request')