Sass Font Include Mixin

font-include.scss

/**
* Font Name: Proxima Nova
* Font Folder Name: /var/www/project/assets/fonts/proxima-nova
* Font File Name (Regular): /var/www/project/assets/fonts/proxima-nova/proxima-nova-regular.ttf
* Font File Name (Bold): /var/www/project/assets/fonts/proxima-nova/proxima-nova-bold.ttf
* 
* Use Mixin: @include font-include('Proxima Nova', 'proxima-nova', 'proxima-nova');
*/
@mixin font-include($font-name, $font-dir-name, $font-file-name) {

    $weight: (
        'thin': 100,
        'light': 300,
        'regular': 400,
        'medium': 500,
        'semibold': 600,
        'bold': 700,
        'extra-bold': 800,
        'black': 900
    );

    @each $var, $index in $weight {

        $fontUrl: 'fonts/#{$font-dir-name}/#{$font-file-name}-#{$var}';

        @font-face {
          font-family: $font-name;
          font-style: normal;
          font-weight: $index;
          src: url(.eot);
          src: url(#{$fontUrl}.eot?#iefix) format('embedded-opentype'),
               url(#{$fontUrl}.woff2) format('woff2'),
               url(#{$fontUrl}.woff) format('woff'),
               url(#{$fontUrl}.ttf) format('truetype');
        }

    }
}