Add driver-specific pipeline requirements

As we expand the Github driver, we're seeing a need to specify driver-specific
pipeline requirements.  To accomplish this, bump the require/reject pipeline
keywords down a level underneath connection names.  This lets users specify
per-source pipeline requirements.

This adds new API methods for sources to create the new pipeline filters
(by returning instances or subclasses of RefFilter, which used to be called
ChangeishFilter).

This change also creates and/or moves driver-specific subclasses of EventFilter
and TriggerEvent in(to) their respective drivers.

Change-Id: Ia56c254e3aa591a688103db5b04b3dddae7b2da4

1 files changed, 14 insertions, 0 deletions

diff --git a/zuul/driver/github/githubsource.py b/zuul/driver/github/githubsource.py
index 312ee871a..e7d19ac2e 100644
--- a/zuul/driver/github/githubsource.py
+++ b/zuul/driver/github/githubsource.py
@@ -90,3 +90,17 @@ class GithubSource(BaseSource):
 
     def _ghTimestampToDate(self, timestamp):
         return time.strptime(timestamp, '%Y-%m-%dT%H:%M:%SZ')
+
+    def getRequireFilters(self, config):
+        return []
+
+    def getRejectFilters(self, config):
+        return []
+
+
+def getRequireSchema():
+    return {}
+
+
+def getRejectSchema():
+    return {}