-- import "github.com/qri-io/ioes"
Package ioes or "in, out, error streams" provides standard names and utilities for working with traditional "stdout" streams
type IOStreams struct {
In io.Reader
Out io.Writer
ErrOut io.Writer
}IOStreams provides standard names for iostreams and common methods for managing progress indicators & other contextual output. IOStreams is broken out as a sepearate package to facilitate plumbing contextual feedback into the depths of an application architecture, while also providing clear state management for when contextual feedback doesn't work. As an example, IOStreams may be routed over websockets to provide HTTP output, and in this context it's far easier to disable things like spinners outright IOStreams must be created with a "New" method
func NewDiscardIOStreams() IOStreamsNewDiscardIOStreams returns a valid IOStreams that just discards
func NewIOStreams(in io.Reader, out, errOut io.Writer) IOStreamsNewIOStreams creates streams
func NewStdIOStreams() IOStreamsNewStdIOStreams creates a standard set of streams, with in, out, and error mapped to os.Stdin, os.Stdout, and os.Stderr respectively
func NewTestIOStreams() (IOStreams, *bytes.Buffer, *bytes.Buffer, *bytes.Buffer)NewTestIOStreams returns a valid IOStreams and in, out, errout buffers for unit tests
func (s IOStreams) Print(msg string)Print writes a msg to the Out stream
func (s IOStreams) SpinnerActive() boolSpinnerActive returns the active state of the progres spinner
func (s IOStreams) SpinnerMsg(msg string)SpinnerMsg sets the spinner suffix message
func (s IOStreams) StartSpinner()StartSpinner begins the progress spinner
func (s IOStreams) StopSpinner()StopSpinner halts the progress spinner