Some gitconfig aliases. #git

.gitconfig

[alias]
	up = "pull --rebase"
	pullmerge = "pull --no-rebase"
	subup = "!f() { git submodule sync; git submodule update --init --recursive; }; f"
	subreset = "submodule foreach 'git reset --hard HEAD'"
	who = shortlog -s --
	lg = log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --date=relative
	info = remote -v
	incoming = !(git fetch --quiet && git log --pretty=format:'%C(yellow)%h %C(white)- %C(red)%an %C(white)- %C(cyan)%d%Creset %s %C(white)- %ar%Creset' ..@{u})
	outgoing = !(git fetch --quiet && git log --pretty=format:'%C(yellow)%h %C(white)- %C(red)%an %C(white)- %C(cyan)%d%Creset %s %C(white)- %ar%Creset' @{u}..)

What does incoming and outoing do?

Nothing displays on my screen.