# bash completion for cryptsetup                           -*- shell-script -*-

_cryptsetup_name()
{
    COMPREPLY=($(compgen -X control -W '$(command ls /dev/mapper)' -- "$cur"))
}

_cryptsetup_device()
{
    cur=${cur:=/dev/}
    _filedir
}

_cryptsetup()
{
    local cur prev words cword split
    _init_completion -s || return

    case $prev in
        --help | --version | --cipher | --hash | --*-size | --key-slot | --size | --offset | \
            --skip | --iter-time | --timeout | --tries | -!(-*)[chslSbopitT])
            return
            ;;
        --key-file | --master-key-file | --header-backup-file | -!(-*)d)
            _filedir
            return
            ;;
        --type | -!(-*)M)
            COMPREPLY=($(compgen -W "luks plain loopaes tcrypt" -- "$cur"))
            return
            ;;
    esac

    $split && return

    local arg
    _get_first_arg
    if [[ -z $arg ]]; then
        if [[ $cur == -* ]]; then
            COMPREPLY=($(compgen -W '$(_parse_help "$1")' -- "$cur"))
            [[ ${COMPREPLY-} == *= ]] && compopt -o nospace
        else
            COMPREPLY=($(compgen -W 'open close resize status benchmark
                repair erase luksFormat luksAddKey luksRemoveKey luksChangeKey
                luksKillSlot luksUUID isLuks luksDump tcryptDump luksSuspend
                luksResume luksHeaderBackup luksHeaderRestore' -- "$cur"))
        fi
    else
        local args
        _count_args "" "-!(-*)[chslSbopitTdM]"
        case $arg in
            open | create | luksOpen | loopaesOpen | tcryptOpen)
                case $args in
                    2)
                        _cryptsetup_device
                        ;;
                    3)
                        _cryptsetup_name
                        ;;
                esac
                ;;
            close | remove | luksClose | loopaesClose | tcryptClose | status | resize | \
                luksSuspend | luksResume)
                case $args in
                    2)
                        _cryptsetup_name
                        ;;
                esac
                ;;
            luksFormat | luksAddKey | luksRemoveKey | luksChangeKey)
                case $args in
                    2)
                        _cryptsetup_device
                        ;;
                    3)
                        _filedir
                        ;;
                esac
                ;;
            luksKillSlot | luksDelKey | luksUUID | isLuks | luksDump)
                case $args in
                    2)
                        _cryptsetup_device
                        ;;
                esac
                ;;
            luksHeaderBackup | luksHeaderRestore)
                case $args in
                    2)
                        _cryptsetup_device
                        ;;
                    3)
                        COMPREPLY=('--header-backup-file')
                        ;;
                esac
                ;;
        esac
    fi

} &&
    complete -F _cryptsetup cryptsetup

# ex: filetype=sh
