discoverer: Stop warnings about update_service

This adds a stub update_service method. It's debatable if we'll need this method
at all, but zeroconf is going to be making it mandatory soon, so we'll add a
stub.

Change-Id: Ied177430f8a16b3ba89bf9f32063d87bbea8d162

debian/changelog

diff --git a/debian/changelog b/debian/changelog
index 0019c75..2478042 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,10 @@
+mendel-development-tool (1.5.2) stable; urgency=medium
+
+  * Add an update_service method to the Discoverer to resolve a warning
+    with zeroconf.
+
+ -- Coral <coral-support@google.com>  Thu, 25 Jun 2020 13:06:16 -0500
+
 mendel-development-tool (1.5.0) stable; urgency=medium
 
   * Allow mdt to connect to device matching 192.168.10X.XXX.

mdt/__init__.py

diff --git a/mdt/__init__.py b/mdt/__init__.py
index 0cbc05b..f8733b8 100644
--- a/mdt/__init__.py
+++ b/mdt/__init__.py
@@ -15,4 +15,4 @@
 '''
 
 
-__version__ = '1.5.0'
+__version__ = '1.5.2'

mdt/discoverer.py

diff --git a/mdt/discoverer.py b/mdt/discoverer.py
index d729336..462cbed 100644
--- a/mdt/discoverer.py
+++ b/mdt/discoverer.py
@@ -79,3 +79,7 @@
             if info.server in self.discoveries:
                 self._heard_announcement = True
                 del(self.discoveries[info.server])
+
+    def update_service(self, zeroconf, type, name):
+        """TODO(jtgans): Add this method once zeroconf figures out what it's for."""
+        pass

setup.py

diff --git a/setup.py b/setup.py
index c08945b..5e4d6e6 100755
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@
 
 setup(
     name='mendel-development-tool',
-    version='1.5.1',
+    version='1.5.2',
     description='A command-line tool to manage Mendel Linux embedded systems',
     long_description=long_description,
     long_description_content_type='text/markdown',