LabHub: Use activate and configuration templates

__init__ is executed at load time and
and any issue in the plugin will lead
to it not showing up.
LifeCycle: __init__->configured->enable

Adapts to the `DefaultConfigMixin` and
migrated to using configuration templates.

Closes coala#554
Closes coala#382

config.py

@@ -111,3 +111,12 @@
     'LabHub:*': {'allowprivate': False}}
 
 AUTOINSTALL_DEPS = True
+
+DEFAULT_CONFIG = {
+    'LabHub': {
+        'GH_TOKEN': os.environ.get('GH_TOKEN'),
+        'GL_TOKEN': os.environ.get('GL_TOKEN'),
+        'GH_ORG_NAME': 'coala',
+        'GL_ORG_NAME': 'coala',
+    },
+}

plugins/labhub.py

@@ -1,5 +1,4 @@
 import datetime
-import os
 import re
 import time
 
@@ -10,8 +9,8 @@
 from errbot.templating import tenv
 
 from functools import wraps
-from plugins import constants
 from utils.backends import message_link
+from utils.mixin import DefaultConfigMixin
 
 
 def members_only(func):
@@ -33,47 +32,51 @@ def wrapper(*args, **kwargs):
     return wrapper
 
 
-class LabHub(BotPlugin):
+class LabHub(DefaultConfigMixin, BotPlugin):
     """GitHub and GitLab utilities"""  # Ignore QuotesBear
 
-    GH_ORG_NAME = constants.GH_ORG_NAME
-    GL_ORG_NAME = constants.GL_ORG_NAME
+    CONFIG_TEMPLATE = {
+        'GH_ORG_NAME': None,
+        'GH_TOKEN': None,
+        'GL_ORG_NAME': None,
+        'GL_TOKEN': None,
+    }
 
-    def __init__(self, bot, name=None):
-        super().__init__(bot, name)
+    def activate(self):
+        super().activate()
 
         teams = dict()
         try:
-            gh = github3.login(token=os.environ.get('GH_TOKEN'))
+            gh = github3.login(token=self.config['GH_TOKEN'])
             assert gh is not None
-        except AssertionError:
+        except AssertionError:  # pragma: no cover, for logging
             self.log.error('Cannot create github object, please check GH_TOKEN')
         else:
-            self.GH3_ORG = gh.organization(self.GH_ORG_NAME)
+            self.GH3_ORG = gh.organization(self.config['GH_ORG_NAME'])
             for team in self.GH3_ORG.teams():
                 teams[team.name] = team
 
         self._teams = teams
 
-        self.IGH = GitHub(GitHubToken(os.environ.get('GH_TOKEN')))
-        self.IGL = GitLab(GitLabPrivateToken(os.environ.get('GL_TOKEN')))
+        self.IGH = GitHub(GitHubToken(self.config['GH_TOKEN']))
+        self.IGL = GitLab(GitLabPrivateToken(self.config['GL_TOKEN']))
 
         self.REPOS = dict()
 
         try:
             self.gh_repos = {repo.full_name.split('/')[-1]: repo for repo in
                              filter(lambda x: (x.full_name.split('/')[0] ==
-                                               self.GH_ORG_NAME),
+                                               self.config['GH_ORG_NAME']),
                                     self.IGH.write_repositories)}
-        except RuntimeError:
+        except RuntimeError:  # pragma: no cover, for logging
             self.log.exception('Something went wrong in fetching github repos.')
         else:
             self.REPOS.update(self.gh_repos)
 
         try:
             self.gl_repos = {repo.full_name.split('/')[-1]: repo for repo in
                              filter(lambda x: (x.full_name.split('/')[0] ==
-                                               self.GL_ORG_NAME),
+                                               self.config['GL_ORG_NAME']),
                                     self.IGL.write_repositories)}
         except RuntimeError:  # pragma: no cover, for logging
             self.log.exception('Something went wrong in fetching gitlab repos.')
@@ -92,9 +95,12 @@ def TEAMS(self, new):
 
     def team_mapping(self):
         return {
-            'newcomers': self.TEAMS[self.GH_ORG_NAME + ' newcomers'],
-            'developers': self.TEAMS[self.GH_ORG_NAME + ' developers'],
-            'maintainers': self.TEAMS[self.GH_ORG_NAME + ' maintainers'],
+            'newcomers':
+                self.TEAMS[self.config['GH_ORG_NAME'] + ' newcomers'],
+            'developers':
+                self.TEAMS[self.config['GH_ORG_NAME'] + ' developers'],
+            'maintainers':
+                self.TEAMS[self.config['GH_ORG_NAME'] + ' maintainers'],
         }
 
     def is_team_member(self, user, team):
@@ -232,7 +238,8 @@ def unassign_cmd(self, msg, match):
         user = msg.frm.nick
 
         try:
-            assert org == self.GH_ORG_NAME or org == self.GL_ORG_NAME
+            assert (org == self.config['GH_ORG_NAME'] or
+                    org == self.config['GL_ORG_NAME'])
         except AssertionError:
             yield 'Repository not owned by our org.'
             return
@@ -317,7 +324,8 @@ def assign_cmd(self, msg, match):
         user = msg.frm.nick
 
         try:
-            assert org == self.GH_ORG_NAME or org == self.GL_ORG_NAME
+            assert (org == self.config['GH_ORG_NAME'] or
+                    org == self.config['GL_ORG_NAME'])
         except AssertionError:
             yield 'Repository not owned by our org.'
             return
@@ -328,7 +336,8 @@ def register_check(function):
             checks.append(function)
             return function
 
-        if self.GH_ORG_NAME == 'coala' and self.GL_ORG_NAME == 'coala':
+        if (self.config['GH_ORG_NAME'] == 'coala' and
+                self.config['GL_ORG_NAME'] == 'coala'):
             @register_check
             def difficulty_level(user, iss):
                 """
@@ -368,7 +377,7 @@ def newcomer_issue_check(user, iss):
                     search_query = 'user:coala assignee:{} ' \
                                    'label:difficulty/newcomer'.format(user)
                     result = GitHub.raw_search(GitHubToken(
-                        os.environ.get('GH_TOKEN')), search_query)
+                        self.config['GH_TOKEN']), search_query)
                     return not (sum(1 for _ in result) >= 1)
                 else:
                     return True
@@ -402,7 +411,7 @@ def eligible(user, iss):
                     yield tenv().get_template(
                         'labhub/errors/not-eligible.jinja2.md'
                     ).render(
-                        organization=self.GH_ORG_NAME,
+                        organization=self.config['GH_ORG_NAME'],
                     )
             elif user in iss.assignees:
                 yield ('The issue is already assigned to you.')

tests/corobo_test_case.py

@@ -28,10 +28,14 @@ def load_plugin_templates(self, klass):
             self.plug_files[klass.__name__] = plug_info
             add_plugin_templates_path(plug_info)
 
-    def load_plugin(self, plugin_name: str, mock_dict=False):
+    def load_plugin(self,
+                    plugin_name: str,
+                    mock_dict=False,
+                    plugin_config=None):
         """Load plugin manually"""
         klass = self.klasses[plugin_name]
         plugin = klass(self.bot, plugin_name)
+        plugin.configure(plugin_config)
         plugin.activate()
         self.plugins[plugin_name] = plugin
         self.bot.plugin_manager.plugins[plugin_name] = plugin

tests/labhub_test.py

@@ -54,7 +54,13 @@ def setUp(self):
             },
             '_teams': self.teams,
         }
-        self.labhub = self.load_plugin('LabHub', self.global_mocks)
+        configs = {
+            'GH_TOKEN': None,
+            'GL_TOKEN': None,
+            'GH_ORG_NAME': 'coala',
+            'GL_ORG_NAME': 'coala',
+        }
+        self.labhub = self.load_plugin('LabHub', self.global_mocks, configs)
 
     def test_invite_cmd(self):
         mock_team_newcomers = create_autospec(github3.orgs.Team)
@@ -72,8 +78,6 @@ def test_invite_cmd(self):
         self.inject_mocks('LabHub', mock_dict)
         testbot = self
 
-        plugins.labhub.os.environ['GH_TOKEN'] = 'patched?'
-
         self.assertEqual(self.labhub.TEAMS, self.teams)
 
         mock_dict['is_room_member'].return_value = False
@@ -331,18 +335,18 @@ def test_assign_cmd(self):
 
         # no assignee, newcomer, difficulty medium
         mock_dict = {
-            'GH_ORG_NAME': 'not-coala',
             'TEAMS': {
                 'not-coala newcomers': self.mock_team,
                 'not-coala developers': mock_dev_team,
                 'not-coala maintainers': mock_maint_team,
             },
         }
         self.inject_mocks('LabHub', mock_dict)
+        self.labhub.config['GH_ORG_NAME'] = 'not-coala'
 
         testbot.assertCommand(cmd.format('coala', 'a', '23'),
                               'assigned')
-        mock_dict['GH_ORG_NAME'] = 'coala'
+        self.labhub.config['GH_ORG_NAME'] = 'coala'
         mock_dict['TEAMS'] = self.teams
         self.inject_mocks('LabHub', mock_dict)