GOCUI - Go Console User Interface

Minimalist Go package aimed at creating Console User Interfaces.

Features

• Minimalist API.
• Views (the "windows" in the GUI) implement the interface io.ReadWriter.
• Support for overlapping views.
• The GUI can be modified at runtime (concurrent-safe).
• Global and view-level keybindings.
• Mouse support.
• Colored text.
• Customizable edition mode.
• Easy to build reusable widgets, complex layouts...

Installation

Execute:

$ go get github.com/jroimartin/gocui

Documentation

Execute:

$ go doc github.com/jroimartin/gocui

Or visit godoc.org to read it online.

Example

package main

import (
	"fmt"
	"log"

	"github.com/jroimartin/gocui"
)

func main() {
	g, err := gocui.NewGui(gocui.OutputNormal)
	if err != nil {
		log.Panicln(err)
	}
	defer g.Close()

	g.SetManagerFunc(layout)

	if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
		log.Panicln(err)
	}

	if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
		log.Panicln(err)
	}
}

func layout(g *gocui.Gui) error {
	maxX, maxY := g.Size()
	if v, err := g.SetView("hello", maxX/2-7, maxY/2, maxX/2+7, maxY/2+2); err != nil {
		if err != gocui.ErrUnknownView {
			return err
		}
		fmt.Fprintln(v, "Hello world!")
	}
	return nil
}

func quit(g *gocui.Gui, v *gocui.View) error {
	return gocui.ErrQuit
}

Screenshots

Projects using gocui

• Komanda CLI: IRC Client For Developers.
• Vuls: Agentless vulnerability scanner for Linux/FreeBSD.
• SumoLogic sumoshell: Terminal-only version of Sumo.

Note: if your project is not listed here, let us know! :)