#!/usr/bin/env bash
# SPDX-License-Identifier: GPL-2.0-only

build() {
    local mount

    # fs_autodetect_failed is assigned in the autodetect hook
    # shellcheck disable=SC2154
    if (( fs_autodetect_failed )); then
        add_all_modules -f 'nls' '/kernel/fs'
    else
        add_checked_modules -f 'nls' '/kernel/fs'
    fi

    # Some file systems may need `mount.FSTYPE` binaries to properly mount.
    # See https://man.archlinux.org/man/mount.8.en#EXTERNAL_HELPERS
    # fs_autodetect_failed is assigned in the autodetect hook
    # shellcheck disable=SC2154
    if (( ! fs_autodetect_failed )) && [[ -n "${rootfstype}${usrfstype}" ]]; then
        if command -v "mount.${rootfstype}" &>/dev/null; then
            add_binary "mount.${rootfstype}"
        fi
        if [[ -n "$usrfstype" && "$usrfstype" != "$rootfstype" ]]; then
            if command -v "mount.${usrfstype}" &>/dev/null; then
                add_binary "mount.${usrfstype}"
            fi
        fi
    else
        for mount in $(compgen -c mount.); do
            # skip FUSE, clustered file systems, ecryptfs, cloud storage, pam_mount and etc.
            case "${mount#mount.}" in
                *fuse*|ecryptfs*|ddi|glusterfs|moosefs|crypt{,{,o}_LUKS}|rclone|sshfs)
                    continue
                    ;;
            esac

            add_binary "$mount"
        done
    fi
}

help() {
    cat <<HELPEOF
This hook adds filesystems modules to the image. If you would like to minimize
the modules installed in the image, add the autodetect hook too.
HELPEOF
}

# vim: set ft=sh ts=4 sw=4 et: