Added some config checking at setup time

This patch ensures we check to make sure the required config
keys are available from the aprsd.yml config prior to accessing them.
The plugin won't work without them.  This prevents the plugin from
throwing stack dumps in aprsd.

.gitignore

@@ -0,0 +1,14 @@
+*.egg-info
+.tox
+.idea
+__pycache__
+.coverage
+.coverage.*
+htmlcov
+*.pyc
+docs/_build
+venv
+dist
+.pytest_cache
+.mypy_cache
+build

ChangeLog

@@ -1,6 +1,9 @@
 CHANGES
 =======
 
+v1.0.1
+------
+
 * remote the pinning of aprsd 1.0.0
 
 v1.0

aprsd_slack_plugin/aprsd_slack_plugin.py

@@ -48,15 +48,37 @@ class SlackCommandPlugin(plugin.APRSDPluginBase):
         """Create the slack require client from config."""
 
         # signing_secret = self.config["slack"]["signing_secret"]
-        bot_token = self.config["slack"]["bot_token"]
+        if "slack" not in self.config:
+            LOG.error("APRSD config is missing slack section")
+            return False
+
+        bot_token = self.config["slack"].get("bot_token", None)
+        if not bot_token:
+            LOG.error(
+                "APRSD config is missing slack: bot_token:<token>. "
+                "Please install the slack app and get the "
+                "Bot User OAth Access Token."
+            )
+            return False
+
         self.swc = WebClient(token=bot_token)
 
-        self.slack_channel = self.config["slack"]["channel"]
+        self.slack_channel = self.config["slack"].get("channel", None)
+        if not self.slack_channel:
+            LOG.error(
+                "APRSD config is missing slack: slack_channel: <name> "
+                "Please add a slack channel name to send messages."
+            )
+            return False
+
+        return True
 
     def command(self, fromcall, message, ack):
         LOG.info("SlackCommandPlugin")
 
-        self._setup_slack()
+        is_setup = self._setup_slack()
+        if not is_setup:
+            return
 
         # now call the location plugin to get the location info
         location_plugin = plugin.LocationPlugin(self.config)