# ssh-keygen(1) completion                                 -*- shell-script -*-

_ssh_keygen()
{
    local cur prev words cword
    _init_completion -n = || return

    case $prev in
        -a|-b|-C|-D|-I|-J|-j|-M|-N|-n|-r|-P|-S|-V|-W|-z)
            return
            ;;
        -F|-R)
            # TODO: trim this down to actual entries in known hosts files
            _known_hosts_real "$cur"
            return
            ;;
        -f|-G|-K|-s|-T)
            _filedir
            return
            ;;
        -m)
            COMPREPLY=( $( compgen -W 'PEM PKCS8 RFC4716' -- "$cur" ) )
            return
            ;;
        -O)
            if [[ $cur != *=* ]]; then
                COMPREPLY=( $( compgen -W 'clear force-command=
                    no-agent-forwarding no-port-forwarding no-pty no-user-rc
                    no-x11-forwarding permit-agent-forwarding
                    permit-port-forwarding permit-pty permit-user-rc
                    permit-x11-forwarding source-address=' -- "$cur" ) )
                [[ $COMPREPLY == *= ]] && compopt -o nospace
            fi
            return
            ;;
        -t)
            COMPREPLY=( $( compgen -W 'dsa ecdsa ed25519 rsa rsa1' -- "$cur" ) )
            return
            ;;
    esac

    if [[ $cur == -* ]]; then
        local opts=$( _parse_usage "$1" "-?" )
        [[ -z "$opts" ]] && opts=$( _parse_help "$1" "-?" )  # OpenSSH < 7
        COMPREPLY=( $( compgen -W "$opts" -- "$cur" ) )
    fi
} &&
complete -F _ssh_keygen ssh-keygen

# ex: filetype=sh