Colorize

   _____      _            _
  / ____|    | |          (_)
 | |     ___ | | ___  _ __ _ _______
 | |    / _ \| |/ _ \| '__| |_  / _ \
 | |___| (_) | | (_) | |  | |/ /  __/
  \_____\___/|_|\___/|_|  |_/___\___|

is a library that helps to apply RGB colors, based on 24 bit - ANSI escape sequences for console output.

Table of Contents

• 🏎️ Getting Started

  • Prerequisites
  • Installation
  • Examples

• 🕸️ Tests

  • 📈 Benchmarks

• 🤝 Contribution

  • ⚓ Git Hooks

• 👨‍💻 Credits

• 🆓 License

🏎️ Getting Started

Prerequisites

• Golang 1.11 or later.

Installation

go get -u github.com/ahmedkamals/colorize
cp .env.sample .env

Examples

package main

import (
    "flag"
    "github.com/ahmedkamals/colorize"
    "os"
    "strings"
)

func main() {
    var IsColorDisabled = flag.Bool("no-color", false, "Disable color output.")
    colorize.IsColorDisabled = *IsColorDisabled // disables/enables colorized output.

    colorized := colorize.NewColorable(os.Stdout)
    red, _ := colorize.Hex("#81BEF3")
    style := colorize.Style{
        Foreground: colorize.RGB(218, 44, 128),
        Background: red,
        Font: []colorize.FontEffect{
            colorize.Bold,
            colorize.Italic,
            colorize.Underline,
            colorize.CrossedOut,
        },
    }

    callback := colorized.SprintlnFunc()
    print(callback(style, "I am ", "stylish!"))

    printDirectColors(colorized)

    colorized.Set(colorize.Style{
        Foreground: colorize.RGB(255, 188, 88),
        Font:       []colorize.FontEffect{colorize.Bold},
    })
    print("Output will be styled.\nTill next reset!")
    colorized.Reset()
    colorized.Println(
        colorize.Style{
            Foreground: colorize.RGB(188, 81, 188),
        },
        "\n\nSample colors in Hexadecimal and RGB",
        "\n====================================",
    )
    println(sampleColors(colorized))
}

func printDirectColors(colorized *colorize.Colorable) {
    println(colorized.Black("Text in Black!"))
    println(colorized.Blue("Deep Blue C!"))
    println(colorized.Cyan("Hi Cyan!"))
    println(colorized.Gray("Gray logged text!"))
    println(colorized.Green("50 shades of Green!"))
    println(colorized.Magenta("Go Magenta!"))
    println(colorized.Orange("Orange is the new black!"))
    println(colorized.Purple("The Purple hurdle!"))
    println(colorized.Red("The thin Red light!"))
    println(colorized.White("Twice White!"))
    println(colorized.Yellow("Hello Yellow!"))
}

func sampleColors(colorized *colorize.Colorable) string {
    const columns = 10
    sample := make([]string, 0)
    for colorIndex := 0; colorIndex <= 255; colorIndex++ {
        red := byte((colorIndex + 5) % 256)
        green := byte(colorIndex * 3 % 256)
        blue := byte(255 - colorIndex)

        style := colorize.Style{
            Background: colorize.RGB(red, green, blue),
        }
        sample = append(
            sample,
            getSampleContent(colorized, style),
            " ",
        )

        if (colorIndex-9)%columns == 0 {
            sample = append(sample, "\n")
        }
    }

    return strings.Join(sample, "")
}

func getSampleContent(colorized *colorize.Colorable, style colorize.Style) string {
    return colorized.Sprintf(
        style,
        " %-7s  %-13s",
        style.Background.Hex(),
        style.Background.RGB(),
    )
}

🕸️ Tests

make test

📈 Benchmarks

🤝 Contribution

Please refer to the CONTRIBUTING.md file.

⚓ Git Hooks

In order to set up tests running on each commit do the following steps:

git config --local core.hooksPath .githooks

👨‍💻 Credits

• ahmedkamals
• Inspired by @fatih: color
• Terminal support @mattn: isatty

🆓 LICENSE

Colorize is released under MIT license, please refer to the LICENSE.md file.

Happy Coding 🙂