WIP: generic activation through + new interval-based replication trigger

daemon/job/wakeup/wakeup.go

@@ -3,6 +3,8 @@ package wakeup
 import (
 	"context"
 	"errors"
+
+	"github.com/zrepl/zrepl/daemon/job/trigger"
 )
 
 type contextKey int
@@ -17,6 +19,10 @@ func Wait(ctx context.Context) <-chan struct{} {
 	return wc
 }
 
+func Trigger(ctx context.Context) *trigger.Trigger {
+	panic("unimpl")
+}
+
 type Func func() error
 
 var AlreadyWokenUp = errors.New("already woken up")