Expose Null eventer and allow its use in the Podman CLI

We need this specifically for tests, but others may find it
useful if they don't explicitly need events and don't want the
performance implications of using them.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>

1 files changed, 10 insertions, 3 deletions

diff --git a/libpod/events/events.go b/libpod/events/events.go
index a898171c1..a80e97e90 100644
--- a/libpod/events/events.go
+++ b/libpod/events/events.go
@@ -16,11 +16,16 @@ var ErrNoJournaldLogging = errors.New("No support for journald logging")
 
 // String returns a string representation of EventerType
 func (et EventerType) String() string {
-	if et == LogFile {
+	switch et {
+	case LogFile:
 		return "file"
-
+	case Journald:
+		return "journald"
+	case Null:
+		return "null"
+	default:
+		return "invalid"
 	}
-	return "journald"
 }
 
 // IsValidEventer checks if the given string is a valid eventer type.
@@ -30,6 +35,8 @@ func IsValidEventer(eventer string) bool {
 		return true
 	case Journald.String():
 		return true
+	case Null.String():
+		return true
 	default:
 		return false
 	}