Comment by sdesol

> But in reality they are not actually contributing anything very useful to the community

Have you looked at https://github.com/Microsoft/monaco-editor

They have examples of what it can do at

https://microsoft.github.io/monaco-editor/

It literally took me a couple of days to integrate their diff viewer into my product. If you go to

http://bitbucket-server-demo.gitsense.com/plugins/servlet/gi...

and click on the last tab (077be8bd -> 966c0823) and click on any of the files in the tab, you can see the diff editor in action. I don't know how much money was spent in developing the editor, but it's FREE for use by the community.