Merge pull request #1700 from ericselk2018/dev

add support for using * tag to return all devices

AUTHORS

@@ -31,6 +31,7 @@ their spare time, unpaid, for the love of pinball!
  * James Cardona
  * Dave Ensminger <dave@ensadi.com>
  * Charles Duncan (nullbuilds)
+ * Eric Selk <ericselk2018@gmail.com>
 
 MPF is inspired by pyprocgame and skeletongame which were written by:
 

CONTRIBUTING.md

@@ -1 +1 @@
-See: http://docs.missionpinball.org/about/contributing_to_mpf.html
+See: https://missionpinball.org/about/contributing_to_mpf/

mpf/core/device_manager.py

@@ -306,11 +306,14 @@ def items_tagged(self, tag) -> List["Device"]:
         Args:
         ----
             tag: A string of the tag name which specifies what devices are
-                returned.
+                returned.  A value of "*" returns all devices.
 
         Returns a list of device objects. If no devices are found with that tag, it
         will return an empty list.
         """
+        if tag == "*":
+            return self.values()
+
         items_in_tag_cache = self._tag_cache.get(tag, None)
         if items_in_tag_cache is not None:
             return items_in_tag_cache

mpf/tests/test_DeviceCollection.py

@@ -38,3 +38,8 @@ def test_tags(self):
         self.assertIn(led2, self.machine.lights.items_tagged('tag1'))
         self.assertNotIn(led3, self.machine.lights.items_tagged('tag1'))
         self.assertNotIn(led4, self.machine.lights.items_tagged('tag1'))
+
+        self.assertIn(led1, self.machine.lights.items_tagged('*'))
+        self.assertIn(led2, self.machine.lights.items_tagged('*'))
+        self.assertIn(led3, self.machine.lights.items_tagged('*'))
+        self.assertIn(led4, self.machine.lights.items_tagged('*'))