# Fossil

Fossil supports external `diff` commands by setting `diff-command` for the current repository:

    fossil settings diff-command difft

To use difftastic for all repositories, use `--global`:

    fossil settings diff-command --global difft

## Skip difftastic on Fossil

If you set difftastic as Fossil's `diff` command, but you need to use Fossil's internal diff once, use `-i` to skip difftastic once:

    fossil diff -i

If you want to remove difftastic from one repository (or globally), use `unset`:

    fossil unset diff-command

`unset` also supports the `--global` flag.