pika-live-booster-hooks/pika-refind-btrfs-hooks/usr/bin/gen-pika-refind-btrfs-stanza

#! /bin/bash

set -e

export EFI_PATH=/boot/efi

if [ "$EUID" -ne 0 ]
  then echo "Please run as root"
  exit
fi

if [[ -f $EFI_PATH/EFI/refind/refind.conf ]]
then
        export DO_STANDARD_REFIND_PATH=true
fi

if [[ -f $EFI_PATH/EFI/BOOT/refind.conf ]]
then
    export DO_BOOTX64_REFIND_PATH=true
fi

REFIND_CMDLINE_OPTIONS="$(cat /boot/refind_linux.conf | cut -f4 -d"\"" | head -n1 | sed 's/---//g' | sed -E 's/root=[^ ]* //g')"
ROOT_PARTUUID="$(blkid -s PARTUUID -o value $(df -P -h -T / | awk 'END{print $1}'))"

if [[ -z "$ROOT_PARTUUID" ]]
then
    echo "Current Root partition type doesn't support PARTUUID"
    exit 1
fi

create_entries() {
    REFIND_PATH="$1"
    grep -qxF 'include pika-refind-btrfs.conf' $EFI_PATH/$REFIND_PATH/refind.conf || echo 'include pika-refind-btrfs.conf' >> $EFI_PATH/$REFIND_PATH/refind.conf
    rm -rfv $EFI_PATH/$REFIND_PATH/pika-refind-btrfs.conf || true
    for kernel_version in "$(linux-version list)"
    do
        echo "Creating refind stanza for: $kernel_version"
        echo -e "menuentry \"PikaOS Snapper Stanza - $kernel_version\" {\n    icon /EFI/BOOT/refind-dark/icons/os_pika.png\n    volume \"PikaOS\"\n    loader /vmlinuz-$kernel_version\n    initrd /booster.img-$kernel_version\n    options \"root=PARTUUID=$ROOT_PARTUUID $REFIND_CMDLINE_OPTIONS\"\n}" >> "$EFI_PATH/$REFIND_PATH/pika-refind-btrfs.conf"
    done
}

if [[ $DO_STANDARD_REFIND_PATH == true ]]
then
    echo "Standard Refind Path Detected"
    create_entries "EFI/refind"
fi

if [[ $DO_BOOTX64_REFIND_PATH == true ]]
then
    echo "Bootx64 Refind Path Detected"
    create_entries "EFI/BOOT"
fi