Threebar

Threebar is a simple, customizable and with asynchronous update status bar for i3 window manager. It is built with nodejs and requires v4.1.0 or more to run.

How to use

First you need to install the node module globally

npm install -g threebar

Create a folder .threebar on your home, that folder will contain the files that you will use to create your bar.

It must contain a file named .pattern, that file contains the pattern used to organize your status bar and all the files that will update each part of the status. See an example below.

// .pattern
{helloworld}|{hour}

// helloworld.js
module.exports = function(update) {
  update("helloworld", "Hello World");
};

// hour.js
module.exports = function(update) {
  var updateTime = () => {
    update("hour", [
        new Date().toLocaleTimeString("pt-BR"),
        " - ",
        new Date().toLocaleDateString("pt-BR")
    ].join(" "));
    setTimeout(updateTime, 60000);
  }
  updateTime();
};

That structure will generate something like

Hello World|21:06 - 13/10/2015

Then you need to configure i3 to use threebar, to do so, just change the status_command line to be somthing like:

# Bar
bar {
  font pango: Droid Sans Mono for Powerline Plus Nerd File Types Plus Font Awesome 16px
  status_command threebar 
}

That's it, now you just need to customize it to your needs :D