Fuzzy find (fzf) to show file from history in Git

.bash_profile

# Show file from Git tree at a certain point in the history
function hist() {
    local ref=$1
    local query=$2

    if [ -z $ref ]; then
        echo "Please specify a ref";
        return;
    fi

    local file=$(git ls-tree -r --name-only $ref | fzf --query="$query")

    if [ -z $file ]; then
        return;
    fi

    git show "$ref":"$file" | pygmentize -f terminal256 -O style=native -g | less -Ri
}