Enabling `docker compose` alias, i.e., dc vs. docker compose

docker_compose_alias_with_completion.sh

# Add to your .bashrc
# https://www.gnu.org/software/gnuastro/manual/html_node/Bash-TAB-completion-tutorial.html

if which docker >/dev/null 2>&1; then
  __docker_compose_cmdline_completion() {
    local commands cur prev words cword

    COMPREPLY=()

    _get_comp_words_by_ref -n : cur prev words cword
    #echo -e "\nCUR=$cur PREV=$prev WORDS=$words CWORD=$cword\n"

    [[ "$prev" == "$words" ]] && prev=''

    commands=$( echo $(eval "/usr/libexec/docker/cli-plugins/docker-compose __completeNoDesc $prev '$2'" 2>/dev/null) )
    commands=${commands%*:4}

    IFS=$'\n' read -ra COMPREPLY -d '' < <(compgen -W "${commands[*]}" -- "$2")
    return 0
  }

  complete -F __docker_compose_cmdline_completion dc # If you change the alias, you'll have to change it here too (dc)
  alias dc="docker compose"
fi