# bash completion for gm(1)                                -*- shell-script -*-

_gm_commands()
{
    COMPREPLY+=($(compgen -W '$("$1" help |
        awk "/^ +[^ ]+ +- / { print \$1 }")' -- "$cur"))
}

_gm()
{
    local cur prev words cword
    _init_completion || return

    if ((cword == 1)); then
        _gm_commands "$1"
        return
    elif [[ $cword -eq 2 && ${words[1]} == time ]]; then
        _gm_commands "$1"
        return
    fi

    local gmcmd=${words[1]}
    [[ $gmcmd == time ]] && gmcmd=${words[2]}

    case $gmcmd in
        help)
            [[ $prev == help ]] && _gm_commands "$1"
            return
            ;;
        version)
            return
            ;;
    esac

    # TODO... defer some commnds to the imagemagick "gm"less completions etc?
    compopt -o default
} &&
    complete -F _gm gm

# ex: filetype=sh