About

Glitzer (german for “glitter” or “sparkle”) is a library for gleam that helps you create progress bars and other fancy progress reporting and command line utilities. It is written in pure gleam and supports javascript and erlang.

Getting Started

Installation

Simply run

gleam add glitzer

in your projects root directory to add the library to your project.

Usage

You can access the progress bars with import glitzer/progress.

A simple progress bar

import gleam/int
import gleam/yielder

import glitzer/progress

pub fn main() {
    let bar =
        progress.new_bar()
        |> progress.with_length(100)
        |> progress.with_fill(progress.char_from_string("+"))
        |> progress.with_empty(progress.char_from_string("-"))
        |> progress.with_left_text("Doing stuff: ")
    yielder.range(1, 100)
    |> progress.each_yielder(bar, fn(bar, i) {
        progress.with_left_text(bar, int.to_string(i) <> " ")
        |> progress.print_bar
        // do some other stuff here
    })
}

Progress bar templates

Glitzer also provides some premade templates for progress bars. All of these templates have a default length of 100. As an example, here is how you could use the fancy_slim_arrow_bar template.

import glitzer/progress

pub fn main() {
    let bar = progress.fancy_slim_arrow_bar()
    do_stuff(bar, 0)
}

fn do_stuff(bar, count) {
    case count < 100 {
       True -> {
            let bar = progress.tick(bar)
            progress.print_bar(bar)
            // some heavy lifting
            do_stuff(bar, count + 1)
        }
       False -> Nil
    }
}

All templates can be found in the documentation

Spinners

Import spinners into your project using import glitzer/spinner.

import glitzer/spinner

pub fn main() {
  let s =
    spinner.default_spinner()
    |> spinner.with_left_text("Imma spin >:3 ")
    |> spinner.with_finish_text("I'm dizzy :(")
    |> spinner.spin // this will continuously spin your spinner

    // do some stuff

    // update the text
    spinner.with_left_text(s, "Now imma spin some more :] ")
    |> spinner.with_frame_transform(fn(s) {"<" <> s <> ">"})

    spinner.finish(s) // clear the line and print the finish text
}

Roadmap

See the open issues for a list of proposed features (and known issues).

• Top Feature Requests (Add your votes using the 👍 reaction)
• Top Bugs (Add your votes using the 👍 reaction)
• Newest Bugs

Support

New code and pull requests are greatly appreciated! If you want to contribute, check the contributing guidelines and submit a PR :3

If you have any questions, feel free to create a question! Please note that it may take some time for me to respond. I am not paid for doing this and do have a private life (surprise!) :]

If something is very urgent, you may write me an email. However, only do this if it’s something major like a security issue or harassement in some discussion of the project. Harassement does not mean someone not agreeing with your point of view about the project.

Project assistance

If you want to say thank you or/and support active development of glitzer, feel free to add a GitHub Star to the project!

Contributing

First off, thanks for taking the time to contribute! Contributions are what make the open-source community such an amazing place to learn, inspire, and create. Any contributions you make will benefit everybody else and are greatly appreciated.

Please read our contribution guidelines, and thank you for being involved!

License

This project is licensed under the GNU General Public License v3.

See LICENSE for more information.

Acknowledgements

• indicatif greatly inspired this project!
• spinner is a very cool gleam library to create simple spinners. If you don’t need more than that, check them out!