I have configured git diff to be a command that calls substitute diff for viewing file differences i.e /usr/bin/vim -dR "$2" "$3" and that doesn't work when I want to create a patch using git diff > patchfile.
Is there a way to invoke directly git's own built in diff without disabling the subsitute diff I use for visual compares?
git format-patch. No need to misusegit diff.--no-ext-diff