#!/bin/bash

build() {
    local mod

    add_module "dm-crypt"
    if [[ $CRYPTO_MODULES ]]; then
        for mod in $CRYPTO_MODULES; do
            add_module "$mod"
        done
    else
        add_all_modules "/crypto/"
    fi

    add_binary "dmsetup"
    add_file "/usr/lib/udev/rules.d/10-dm.rules"
    add_file "/usr/lib/udev/rules.d/13-dm-disk.rules"
    add_file "/usr/lib/udev/rules.d/95-dm-notify.rules"
    add_file "/usr/lib/initcpio/udev/11-dm-initramfs.rules" "/usr/lib/udev/rules.d/11-dm-initramfs.rules"

    add_systemd_unit "cryptsetup.target"
    add_binary "/usr/lib/systemd/system-generators/systemd-cryptsetup-generator"
    add_binary "/usr/lib/systemd/systemd-cryptsetup"

    add_systemd_unit "systemd-ask-password-console.path"
    add_systemd_unit "systemd-ask-password-console.service"

    # cryptsetup calls pthread_create(), which dlopen()s libgcc_s.so.1
    add_binary "/usr/lib/libgcc_s.so.1"

    [[ -f /etc/crypttab.initramfs ]] && add_file "/etc/crypttab.initramfs" "/etc/crypttab"
}

help() {
    cat <<HELPEOF
This hook allows for an encrypted root device with systemd initramfs.

See the manpage of systemd-cryptsetup-generator(8) for available kernel
command line options. Alternatively, if the file /etc/crypttab.initramfs
exists, it will be added to the initramfs as /etc/crypttab. See the
crypttab(5) manpage for more information on crypttab syntax.
HELPEOF
}

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