dubdiff

A diff viewer for markdown-formatted documents.

Uses the wdiff tool as a diffing engine. This produces an output that is more useful for copy-editing tasks. This wdiff comparison is then processed in a way that is aware of markdown formatting. The resulting output attempts to show differences of copy within the final document format (rather than differences of format).

The markdown-sensitive processing of the wdiff comparison is at server/components/wdiff/index.js, for the curious.

Live Version

The tool is live at http://dubdiff.com, feel free to use it there.

Provisioning

You'll need the following:

• node & npm
• grunt and bower (npm install -g grunt bower)
• ruby (apt install ruby)
• sass (gem install sass)
• wdiff (apt install wdiff)

The wdiff binary should be placed in the bin subfolder, or a link should be made to the binary. Eg. ln -s /usr/bin/wdiff bin/wdiff.

npm install && bower install
mkdir data

Low-memory environments

On a low-memory machine, eg. a DigitalOcean 512MB instance, you will need to enable virtual memory. Use this guide:

How To Configure Virtual Memory (Swap File) on a VPS

Start on boot

To make the application start on boot, run the following:

pm2 start grunt --name dubdiff -- serve:dist
pm2 startup systemd
pm2 save

Digital Ocean: How To Set Up a Node.js Application for Production on Ubuntu 16.04