Add pyserial adapter for --list-deps

mopidy/utils/deps.py

@@ -29,6 +29,7 @@ def format_dependency_list(adapters=None):
             pyspotify_info,
             pylast_info,
             dbus_info,
+            serial_info,
         ]
 
     lines = []
@@ -107,3 +108,14 @@ def dbus_info():
     except ImportError:
         pass
     return dep_info
+
+
+def serial_info():
+    dep_info = {'name': 'pyserial'}
+    try:
+        import serial
+        dep_info['version'] = serial.VERSION
+        dep_info['path'] = serial.__file__
+    except ImportError:
+        pass
+    return dep_info

tests/utils/deps_test.py

@@ -13,6 +13,11 @@ try:
 except ImportError:
     pylast = False
 
+try:
+    import serial
+except ImportError:
+    serial = False
+
 try:
     import spotify
 except ImportError:
@@ -81,3 +86,11 @@ class DepsTest(unittest.TestCase):
         self.assertEquals('dbus-python', result['name'])
         self.assertEquals(dbus.__version__, result['version'])
         self.assertIn('dbus', result['path'])
+
+    @unittest.skipUnless(serial, 'serial not found')
+    def test_serial_info(self):
+        result = deps.serial_info()
+
+        self.assertEquals('pyserial', result['name'])
+        self.assertEquals(serial.VERSION, result['version'])
+        self.assertIn('serial', result['path'])