special exit code 78

.drone.yml

@@ -10,6 +10,7 @@ steps:
 - name: test
   image: golang:1.11
   commands:
+  - go vet ./...
   - go test -v --cover ./...
 
 ...

LICENSE

@@ -2,9 +2,9 @@ Copyright 2019 Drone.IO, Inc.
 
 Source code in this repository is variously licensed under the
 Apache License Version 2.0, an Apache compatible license, or the
-Drone Community License. Source code in a given file is licensed
-under the Drone Community License unless otherwise noted at the
-beginning of the file.
+Drone Non-Commercial License. Source code in a given file is
+licensed under the Drone Non-Commercial License unless otherwise
+noted at the beginning of the file.
 
 -----------------------------------------------------------------
 

runtime/runtime.go

@@ -117,6 +117,12 @@ func (r *Runtime) execGraph(ctx context.Context) error {
 				return ErrCancel
 			default:
 			}
+			r.mu.Lock()
+			skip := r.error == ErrInterrupt
+			r.mu.Unlock()
+			if skip {
+				return nil
+			}
 			err := r.exec(step)
 			if err != nil {
 				r.mu.Lock()
@@ -138,6 +144,14 @@ func (r *Runtime) execAll(group []*engine.Step) <-chan error {
 	var g errgroup.Group
 	done := make(chan error)
 
+	// if a previous step returned error code 78
+	// the pipeline process skips all subsequent
+	// pipeline steps.
+	if r.error == ErrInterrupt {
+		close(done)
+		return done
+	}
+
 	for _, step := range group {
 		step := step
 		g.Go(func() error {
@@ -237,6 +251,8 @@ func (r *Runtime) exec(step *engine.Step) error {
 			Name: step.Metadata.Name,
 			Code: wait.ExitCode,
 		}
+	} else if wait.ExitCode == 78 {
+		err = ErrInterrupt
 	} else if wait.ExitCode != 0 {
 		err = &ExitError{
 			Name: step.Metadata.Name,