# crontab(1) completion                                    -*- shell-script -*-

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

    case $prev in
        -u)
            _allowed_users
            return 0
            ;;
    esac

    local -A opts=( [-u]= [-l]= [-r]= [-e]= )
    [[ $OSTYPE == *linux* ]] && opts[-i]=
    [[ -d /sys/fs/selinux || -d /selinux ]] && opts[-s]=

    local i
    for (( i=0; i < ${#words[@]}-1; i++ )); do
        [[ ${words[i]} ]] && unset "opts[${words[i]}]"
        case "${words[i]}" in
            -l)
                unset 'opts[-r]' 'opts[-e]' 'opts[-i]' 'opts[-s]'
                ;;
            -e)
                unset 'opts[-l]' 'opts[-r]' 'opts[-i]'
                ;;
            -r)
                unset 'opts[-l]' 'opts[-e]'
                ;;
            -u)
                unset 'opts[-i]'
                ;;
        esac
    done

    if [[ "$cur" == -* ]]; then
        COMPREPLY=( $( compgen -W '${!opts[@]}' -- "$cur" ) )
        return 0
    fi

    # do filenames only if we did not have -l, -r, or -e
    [[ "${words[@]}" == *\ -[lre]* ]] || _filedir
} &&
complete -F _crontab crontab

# ex: ts=4 sw=4 et filetype=sh