cliui

CliUI

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gookit/cliui is a terminal UI helper module, provides some commonly used display and interactive functional components for CLI.

It focuses on three core areas for CLI applications:

• show: structured terminal output helpers
• interact: interactive input helpers
• progress: progress and loading display helpers

The root package also provides shared input/output helpers used by the subpackages:

• SetInput(in io.Reader)
• SetOutput(out io.Writer)
• CustomIO(in io.Reader, out io.Writer)
• ResetInput()
• ResetOutput()
• ResetIO()

Install

go get github.com/gookit/cliui

Or install a sub package directly:

go get github.com/gookit/cliui/show
go get github.com/gookit/cliui/progress
go get github.com/gookit/cliui/interact

Package Overview

show

Provides structured terminal output helpers for displaying formatted content in CLI applications. It includes table, title, banner, list, multi-list, alert messages and JSON output helpers.

Import:

github.com/gookit/cliui/show

[!NOTE] More Details: docs/show.md

Quick Usage:

package main

import "github.com/gookit/cliui/show"

func main() {
	show.Banner("Deploy started")
	show.AList("App info", map[string]any{
		"name": "cliui",
		"env":  "dev",
	})
	show.JSON(map[string]any{"ok": true})
}

interact

Provides interactive input helpers for CLI programs. It supports prompt, confirm, question, select, multi-select, password input and other common terminal interaction patterns.

It also includes a newer interact/ui layer for backend-driven components:

• plain backend for line-based input, tests and redirected stdin
• readline backend for raw terminal interaction
• Input, Confirm, Select and MultiSelect components
• UTF-8 input editing, common navigation keys and persistent validation errors

Import:

github.com/gookit/cliui/interact

[!NOTE] More Details: docs/interact.md

Quick Usage:

package main

import (
	"context"
	"fmt"

	"github.com/gookit/cliui/interact"
)

func main() {
	be := interact.NewUIReadlineBackend()

	name, err := interact.NewUIInput("Your name").Run(context.Background(), be)
	if err != nil {
		panic(err)
	}

	env, err := interact.NewUISelect("Choose env", []interact.UIItem{
		{Key: "dev", Label: "Development", Value: "dev"},
		{Key: "prod", Label: "Production", Value: "prod"},
	}).Run(context.Background(), be)
	if err != nil {
		panic(err)
	}

	fmt.Println("name:", name)
	fmt.Println("env:", env.Value)
}

progress

Provides progress and loading display helpers for long-running tasks. It includes progress bars, text bars, spinner/loading indicators, counters, dynamic text output and MultiProgress for rendering multiple bars in one terminal block.

Import:

github.com/gookit/cliui/progress

[!NOTE] More Details: docs/progress.md

Quick Usage:

package main

import (
	"time"

	"github.com/gookit/cliui/progress"
)

func main() {
	p := progress.Bar(100)
	p.Start()

	for i := 0; i < 100; i++ {
		time.Sleep(20 * time.Millisecond)
		p.Advance()
	}

	p.Finish()
}

Migration

If you are migrating from gookit/gcli/v3, the corresponding package paths are:

• github.com/gookit/gcli/v3/show -> github.com/gookit/cliui/show
• github.com/gookit/gcli/v3/interact -> github.com/gookit/cliui/interact
• github.com/gookit/gcli/v3/progress -> github.com/gookit/cliui/progress

Development

go test ./...

License

MIT