function cvsd --wraps 'cvs diff'
    if type -q colordiff
        command cvs diff -uN $argv | colordiff | less -FRX
    else
        set -l red (tput setaf 1)
        set -l green (tput setaf 2)
        set -l reset (tput sgr0)
        cvs diff -uN $argv | sed "s/^+.*\$/$green&$reset/" |
            sed "s/^-.*\$/$red&$reset/" | less -FRX
    end
end
