Ignore path

[giuseppepaul]

Just wondering if there's any recommended way of ignoring certain paths? I'm using diff and patch which are both great, but I have nested maps at certain points in the structure that I'd like to never be changed by the patch.

Without changing the structure of my data, my current idea is just to run the diff and then filter out anything with a specified name, say "_ignore" in the path, then patch from there.

Only problem with this is if I have a bunch of changes inside my "_ignore" then it's going to hurt performance, so it'd obviously be better to have diff ignore those if possible.

Appreciate any thoughts / help.

Thanks