Add IsAborted query in results

Author: ccremer

pipeline.go

@@ -17,10 +17,13 @@ type (
 	// Result is the object that is returned after each step and after running a pipeline.
 	Result struct {
 		// Err contains the step's returned error, nil otherwise.
+		// In an aborted pipeline with ErrAbort it will still be nil.
 		Err error
 		// Name is an optional identifier for a result.
 		// ActionFunc may set this property before returning to help a ResultHandler with further processing.
 		Name string
+
+		aborted bool
 	}
 	// Step is an intermediary action and part of a Pipeline.
 	Step struct {
@@ -144,7 +147,7 @@ func (p *Pipeline) doRun() Result {
 		if err != nil {
 			if errors.Is(err, ErrAbort) {
 				// Abort pipeline without error
-				return Result{}
+				return Result{aborted: true}
 			}
 			if p.disableErrorWrapping {
 				return Result{Err: err}

result.go

@@ -6,6 +6,8 @@ import "errors"
 var ErrAbort = errors.New("abort")
 
 // IsSuccessful returns true if the contained error is nil.
+// Aborted pipelines (with ErrAbort) are still reported as success.
+// To query if a pipeline is aborted early, use IsAborted.
 func (r Result) IsSuccessful() bool {
 	return r.Err == nil
 }
@@ -14,3 +16,8 @@ func (r Result) IsSuccessful() bool {
 func (r Result) IsFailed() bool {
 	return r.Err != nil
 }
+
+// IsAborted returns true if the pipeline didn't stop with an error, but just aborted early with ErrAbort.
+func (r Result) IsAborted() bool {
+	return r.aborted
+}