test-tutorial-framework/hack/libhack/common.sh

pushd() {
    command pushd "$@" > /dev/null
}

popd() {
    command popd "$@" > /dev/null
}

spinned() {
    "$@" &
    pid=$!
    spin=("-" "\\" "|" "/")

    echo -n "${spin[0]}"
    while kill -0 $pid &> /dev/null; do
        for i in "${spin[@]}"; do
            echo -ne "\b$i"
            sleep 0.1
        done
    done
    echo -ne "\b"
    wait $pid
}