Issue 813. Made watch interval configurable through global setting in Taskfile and through CLI arg.

Separated Taskfile param and Arg flag

cmd/task/task.go

@@ -73,6 +73,7 @@ func main() {
 		entrypoint  string
 		output      taskfile.Output
 		color       bool
+		interval    string
 	)
 
 	pflag.BoolVar(&versionFlag, "version", false, "show Task version")
@@ -96,6 +97,7 @@ func main() {
 	pflag.StringVar(&output.Group.End, "output-group-end", "", "message template to print after a task's grouped output")
 	pflag.BoolVarP(&color, "color", "c", true, "colored output. Enabled by default. Set flag to false or use NO_COLOR=1 to disable")
 	pflag.IntVarP(&concurrency, "concurrency", "C", 0, "limit number tasks to run concurrently")
+	pflag.StringVarP(&interval, "interval", "I", "5s", "interval to watch for changes")
 	pflag.Parse()
 
 	if versionFlag {
@@ -151,6 +153,7 @@ func main() {
 		Parallel:    parallel,
 		Color:       color,
 		Concurrency: concurrency,
+		Interval:    interval,
 
 		Stdin:  os.Stdin,
 		Stdout: os.Stdout,
@@ -206,6 +209,10 @@ func main() {
 		e.InterceptInterruptSignals()
 	}
 
+	if e.Interval == "" {
+		e.Interval = strings.TrimSpace(interval)
+	}
+
 	ctx := context.Background()
 
 	if status {