This enables indented soft wrap in TextMate 2. For it to work, TextMate's soft wrap setting must be turned on already. The code was taken from here:
http://lists.macromates.com/textmate/2012-August/035181.html
All credit to Allan Odgaard and Anthony Pulido, I simply turned this into a bundle for easier installation.
mkdir -p ~/Library/Application\ Support/Avian/Bundles
cd ~/Library/Application\ Support/Avian/Bundles
git clone git@github.com:complex/Indented-Soft-Wrap.tmbundle.git
You may need to restart TextMate for it to take effect.