function fish_right_prompt
    set -l ref (git symbolic-ref HEAD 2>/dev/null)
    if test -z $ref
        return
    end

    git diff --no-ext-diff --quiet --exit-code 2>/dev/null
    or set -l dirty 'yes'

    git diff-index --cached --quiet HEAD -- 2>/dev/null
    or set -l staged 'yes'

    set_color normal
    echo -sn '['

    if set -q staged
        set_color yellow
    else if set -q dirty
        set_color red
    else
        set_color green
    end
    echo -sn (string replace refs/heads/ '' -- $ref)

    set_color normal
    echo -sn ']'
end