I need to diff our designer's files for the purpose of front-end development. I successfully implemented the following doc for diffing .sketch files with the git command-line:
https://gist.github.com/bomberstudios/c9e6975acd4d4d84a728
I would like to make sourcetree diff .sketch files as well but I can't seem to do it. Any advice? Thanks
Since Sketch 43 the file format structure changed, if you remove the .sketch file extension and replace it for a .zip you are able to decompress it's content and explore the document structure.
Here's more info: https://medium.com/sketch-app-sources/everything-you-need-to-know-about-the-sketch-43-file-format-1f0ba31c3096
This node.js library relies on this new capability to convert Sketch files to JSON back and forth so you can use Source Control (Git/SVN) to review differences between files: