Additional format options

[fuale]

Proposed changes

I was looking for a program that can format “nginx” files, but the ones I found either didn't work or didn't have sufficient options.

Here I add --align, --spacious and --write options for a “format” action. These options will make “format” action more usable

• --align will align all the directives within a block.
• --spacious will add spaces after blocks.
• --write will write formatted config file in-place.

Without options:

server {
    listen 443 ssl;
    ssl_certificate fullchain.pem;
    ssl_certificate_key privite.pem;
    server_name _;
    index index.html;
    root /public;
    charset utf-8;
    expires $expires;
    location ~ \d {
        image_filter_buffer 5M;
        image_filter_interlace on;
        image_filter_jpeg_quality 75;
    }
    location ~ \d {
        image_filter_buffer 5M;
        image_filter_interlace on;
        image_filter_jpeg_quality 75;
    }
}

with options being set:

server {
    listen              443 ssl;
    ssl_certificate     fullchain.pem;
    ssl_certificate_key privite.pem;
    server_name         _;
    index               index.html;
    root                /public;
    charset             utf-8;
    expires             $expires;
    location ~ \d {
        image_filter_buffer       5M;
        image_filter_interlace    on;
        image_filter_jpeg_quality 75;
    }

    location ~ \d {
        image_filter_buffer       5M;
        image_filter_interlace    on;
        image_filter_jpeg_quality 75;
    }
}

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• [x] I have read the CONTRIBUTING doc
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] I have checked that all unit tests pass after adding my changes
• [x] I have updated necessary documentation
• [ ] I have rebased my branch onto master
• [x] I will ensure my PR is targeting the master branch and pulling from my branch from my own fork