Install and Configure Beyond Compare
- Menu -> BeyondCompare -> Install Command Line Tools ...
- Open a diff session e.g. Folder Compare, the Menu -> Session > Session Settings... > Handling > Follow Symbolic Links. Instead of "Use for this view only" at the bottom, select "Also update session defaults".
- execute following cmds inside shell
git config --global diff.tool bc3
git config --global difftool.prompt false
git config --global merge.tool bc3
git config --global mergetool.bc3 trustExitCode true