%global debug_package %{nil}
# Disabling strict shebang verification in the kernel module directory (solves the ambiguous python shebang error)
%global __brp_mangle_shebangs_exclude_from ^/lib/modules/.*
%global __provides_exclude_from ^/lib/modules/.*\.ko$
%global __requires_exclude_from ^/lib/modules/.*\.ko$

%define kernel_flavor xanmod

Name:           kernel-xanmod
Version:        7.1.9
Release:        1%{?dist}
Summary:        Linux XanMod Kernel optimized for x86_64-v2

License:        GPL-2.0-only
URL:            https://xanmod.org/
Source0:        https://gitlab.com/xanmod/linux/-/archive/%{version}-xanmod1.tar.bz2

BuildRequires:  bc, bison, flex, gcc, gcc-c++, make, openssl, perl, python3
BuildRequires:  openssl-devel, elfutils-libelf-devel, dwarves, ncurses-devel
BuildRequires:  tar, xz, zstd, kmod, dracut, grubby, rsync, findutils

Requires(post): dracut, grubby, kmod
Requires(postun): dracut, grubby

%global kernel_release %{version}-%{release}.%{kernel_flavor}

%description
The Linux XanMod kernel with custom settings and new features, built to
provide a stable, responsive and smooth desktop experience. 
Optimized for x86_64-v2 instruction set.

%package devel
Summary:        Development files for the %{kernel_flavor} kernel
Requires:       %{name} = %{version}-%{release}
Provides:       kernel-devel = %{version}
Provides:       kernel-%{kernel_flavor}-devel = %{version}

%description devel
This package contains the kernel headers and makefiles sufficient to build
external modules against the %{name} kernel package.

%prep
#GitLab adds the hash of the commit to the folder name inside the archive.
# We unpack it manually and rename it to a predictable name so as not to hardcode the hash.
rm -rf linux-%{version}-xanmod1
tar -xjf %{SOURCE0}
mv linux-%{version}-xanmod1-* linux-%{version}-xanmod1
cd linux-%{version}-xanmod1

echo "Using XanMod default config from CONFIGS/x86_64/config"
cp CONFIGS/x86_64/config .config

%build
# Install the local version of the kernel
sed -i "s/^CONFIG_LOCALVERSION=.*/CONFIG_LOCALVERSION=\"-%{kernel_flavor}\"/" .config

scripts/config --disable CONFIG_DEBUG_INFO
scripts/config --disable CONFIG_DEBUG_INFO_BTF
scripts/config --disable CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT

# Applying the changes to the configuration
make ARCH=x86 olddefconfig

make %{?_smp_mflags} ARCH=x86

%install
KREL=$(make -s ARCH=x86 kernelrelease)
echo "Installing kernel with release string: ${KREL}"

install -d %{buildroot}/boot
install -d %{buildroot}/lib/modules/${KREL}
install -d %{buildroot}/etc/dracut.conf.d

install -m 0644 arch/x86/boot/bzImage %{buildroot}/boot/vmlinuz-${KREL}
install -m 0644 System.map %{buildroot}/boot/System.map-${KREL}
install -m 0644 .config %{buildroot}/boot/config-${KREL}

# INSTALL_MOD_STRIP=1 removes debugging symbols from .ko modules, speeding up installation and reducing size
make ARCH=x86 \
     INSTALL_MOD_PATH=%{buildroot} \
     INSTALL_MOD_STRIP=1 \
     DEPMOD=/bin/true \
     modules_install

rm -f %{buildroot}/lib/modules/${KREL}/build
rm -f %{buildroot}/lib/modules/${KREL}/source

mkdir -p %{buildroot}/lib/modules/${KREL}/build

# Copy only what is necessary to build external modules
rsync -a --exclude='*.o' \
         --exclude='*.ko' \
         --exclude='*.cmd' \
         --exclude='.tmp_*' \
         --exclude='*.mod.c' \
         --exclude='modules.order' \
         --exclude='Module.markers' \
         --exclude='.git*' \
         --exclude='Documentation' \
         --exclude='tools' \
         . %{buildroot}/lib/modules/${KREL}/build/

cp Module.symvers %{buildroot}/lib/modules/${KREL}/build/
cp System.map %{buildroot}/lib/modules/${KREL}/build/
cp .config %{buildroot}/lib/modules/${KREL}/build/
cp modules.builtin %{buildroot}/lib/modules/${KREL}/

if [ -f modules.builtin.alias ]; then
    cp modules.builtin.alias %{buildroot}/lib/modules/${KREL}/
fi
if [ -f modules.builtin.modinfo ]; then
    cp modules.builtin.modinfo %{buildroot}/lib/modules/${KREL}/
fi

ln -sf build %{buildroot}/lib/modules/${KREL}/source

cat > %{buildroot}/etc/dracut.conf.d/90-xanmod.conf <<'EOF'
omit_dracutmodules+=" rsync "
EOF

echo "${KREL}" > %{buildroot}/boot/.kernel-release-%{kernel_flavor}

%post
KREL=$(cat /boot/.kernel-release-%{kernel_flavor} 2>/dev/null || echo "")

if [ -n "${KREL}" ] && [ -d "/lib/modules/${KREL}" ]; then
    echo "Regenerating module dependencies for ${KREL}..."
    /sbin/depmod -a "${KREL}"
    
    echo "Generating initramfs for kernel ${KREL}..."
    /usr/bin/dracut --force --kver "${KREL}" "/boot/initramfs-${KREL}.img"
    
    if [ -x /usr/sbin/grubby ]; then
        echo "Adding kernel to GRUB bootloader via grubby..."
        /usr/sbin/grubby --add-kernel="/boot/vmlinuz-${KREL}" \
                         --initrd="/boot/initramfs-${KREL}.img" \
                         --title="AlmaLinux (${KREL}) XanMod" \
                         --make-default || true
    fi
fi

%preun
if [ "$1" = "0" ]; then
    KREL=$(cat /boot/.kernel-release-%{kernel_flavor} 2>/dev/null || echo "")
    if [ -n "${KREL}" ]; then
        echo "Removing initramfs and bootloader entry for kernel ${KREL}..."
        rm -f "/boot/initramfs-${KREL}.img"
        /usr/sbin/grubby --remove-kernel="/boot/vmlinuz-${KREL}" || true
    fi
fi

%postun
if [ "$1" = "0" ]; then
    KREL=$(cat /boot/.kernel-release-%{kernel_flavor} 2>/dev/null || echo "")
    if [ -n "${KREL}" ]; then
        /sbin/depmod -a
    fi
fi

%files
%defattr(-,root,root)
/boot/vmlinuz-*%{kernel_flavor}*
/boot/System.map-*%{kernel_flavor}*
/boot/config-*%{kernel_flavor}*
/boot/.kernel-release-%{kernel_flavor}
/lib/modules/*%{kernel_flavor}*
%dir /etc/dracut.conf.d
%config(noreplace) /etc/dracut.conf.d/90-xanmod.conf
%exclude /lib/modules/*%{kernel_flavor}*/build
%exclude /lib/modules/*%{kernel_flavor}*/source

%files devel
%defattr(-,root,root)
/lib/modules/*%{kernel_flavor}*/build
/lib/modules/*%{kernel_flavor}*/source

%changelog
* Mon Aug 24 2026 Inga Vesnova <inga.vesnova@gmail.com> - 7.1.9-1
- Fixed ambiguous python shebang error for AlmaLinux 10
- Fixed prep stage to handle GitLab commit hash in directory name dynamically
- Disabled DEBUG_INFO and added INSTALL_MOD_STRIP to significantly reduce build time