#!/bin/sh

prereqs()
{
    # cryptroot-unlock needs to be run last among crypt* since other hooks might include askpass
    local req script
    for req in "${0%/*}"/crypt*; do
        script="${req##*/}"
        if [ "$script" != "${0##*/}" ]; then
            printf '%s\n' "$script"
        fi
    done
}

case "$1" in
    prereqs)
        prereqs
        exit 0
        ;;
esac

if [ ! -f "$DESTDIR/lib/cryptsetup/askpass" ]; then
    # cryptroot-unlock is useless without askpass
    exit 0
fi

. /usr/share/initramfs-tools/hook-functions
if [ ! -f "$DESTDIR/bin/cryptroot-unlock" ] &&
        ! copy_file script /usr/share/cryptsetup/initramfs/bin/cryptroot-unlock /bin/cryptroot-unlock; then
    echo "ERROR: Couldn't copy /bin/cryptroot-unlock" >&2
    exit 1
fi

if [ -f /etc/initramfs-tools/etc/motd ]; then
    copy_file text /etc/initramfs-tools/etc/motd /etc/motd
else
    cat >>"$DESTDIR/etc/motd" <<- EOF
		To unlock root partition, and maybe others like swap, run \`cryptroot-unlock\`.
	EOF
fi