fixes harness#1523 to ensure json-file driver (harness#2083)

.drone.yml

@@ -46,7 +46,7 @@ pipeline:
     image: plugins/docker
     repo: drone/drone
     secrets: [ docker_username, docker_password ]
-    tag: [ 0.7, 0.7.1 ]
+    tag: [ 0.7, 0.7.2 ]
     when:
       event: tag
 

.github/issue_template.md

@@ -1,14 +1,13 @@
 <!-- PLEASE READ BEFORE DELETING
 
 Bugs or Issues? Please do not open a GitHub issue until you have
-discussed and verified on the mailing list:
+discussed and verified in our chatroom:
 
-    http://discourse.drone.io/
+    https://gitter.im/drone/drone
 
 Failing Builds? Please do not use GitHub issues for generic support
-questions. Instead use the mailing list or Stack Overflow:
+questions. Instead please use Stack Overflow:
 
-    http://discourse.drone.io/
     http://stackoverflow.com/questions/tagged/drone.io
 
 -->

server/rpc.go

@@ -148,6 +148,17 @@ func (s *RPC) Next(c context.Context, filter rpc.Filter) (*rpc.Pipeline, error)
 		return nil, nil
 	}
 	pipeline := new(rpc.Pipeline)
+
+	// check if the process was previously cancelled
+	// cancelled, _ := s.checkCancelled(pipeline)
+	// if cancelled {
+	// 	logrus.Debugf("ignore pid %v: cancelled by user", pipeline.ID)
+	// 	if derr := s.queue.Done(c, pipeline.ID); derr != nil {
+	// 		logrus.Errorf("error: done: cannot ack proc_id %v: %s", pipeline.ID, err)
+	// 	}
+	// 	return nil, nil
+	// }
+
 	err = json.Unmarshal(task.Data, pipeline)
 	return pipeline, err
 }
@@ -442,3 +453,18 @@ func (s *RPC) Log(c context.Context, id string, line *rpc.Line) error {
 	s.logger.Write(c, id, entry)
 	return nil
 }
+
+func (s *RPC) checkCancelled(pipeline *rpc.Pipeline) (bool, error) {
+	pid, err := strconv.ParseInt(pipeline.ID, 10, 64)
+	if err != nil {
+		return false, err
+	}
+	proc, err := s.store.ProcLoad(pid)
+	if err != nil {
+		return false, err
+	}
+	if proc.State == model.StatusKilled {
+		return true, nil
+	}
+	return false, err
+}