Do not ask to kill process we spawned

service/client.go

@@ -69,4 +69,7 @@ type Client interface {
 
 	// Returns stacktrace
 	Stacktrace(goroutineId, depth int) ([]api.Location, error)
+
+	// Returns whether we attached to a running process or not
+	AttachedToExistingProcess() bool
 }

service/rpc/client.go

@@ -205,6 +205,12 @@ func (c *RPCClient) Stacktrace(goroutineId, depth int) ([]api.Location, error) {
 	return locations, err
 }
 
+func (c *RPCClient) AttachedToExistingProcess() bool {
+	var answer bool
+	c.call("AttachedToRunningProcess", nil, &answer)
+	return answer
+}
+
 func (c *RPCClient) url(path string) string {
 	return fmt.Sprintf("http://%s%s", c.addr, path)
 }

service/rpc/server.go

@@ -302,3 +302,10 @@ func (s *RPCServer) ListGoroutines(arg interface{}, goroutines *[]*api.Goroutine
 	*goroutines = gs
 	return nil
 }
+
+func (c *RPCServer) AttachedToExistingProcess(arg interface{}, answer *bool) error {
+	if c.config.AttachPid != 0 {
+		*answer = true
+	}
+	return nil
+}

terminal/terminal.go

@@ -132,13 +132,18 @@ func handleExit(client service.Client, t *Term) (error, int) {
 		}
 	}
 
-	answer, err := t.line.Prompt("Would you like to kill the process? [Y/n] ")
-	if err != nil {
-		return io.EOF, 2
-	}
-	answer = strings.ToLower(strings.TrimSpace(answer))
+	var kill bool
+	if client.AttachedToExistingProcess() {
+		answer, err := t.line.Prompt("Would you like to kill the process? [Y/n] ")
+		if err != nil {
+			return io.EOF, 2
+		}
+		answer = strings.ToLower(strings.TrimSpace(answer))
 
-	kill := (answer != "n" && answer != "no")
+		kill = (answer != "n" && answer != "no")
+	} else {
+		kill = true
+	}
 	err = client.Detach(kill)
 	if err != nil {
 		return err, 1