Show the tree diff
stg diff [options] [--] [<files or dirs>]
Show the diff (default) or diffstat between the current working copy or a tree-ish object and another tree-ish object (defaulting to HEAD). File names can also be given to restrict the diff output. The tree-ish object has the format accepted by the stg-id(1) command.
-r rev1[..[rev2]], --range rev1[..[rev2]]
Show the diff between revisions.
-s, --stat
Show the stat instead of the diff.
-O OPTIONS, --diff-opts OPTIONS
Extra options to pass to "git diff".
Part of the StGit suite - see stg(1)