#! /bin/bash

GREEN='\033[0;32m'
DEFAULT='\033[0m'
PREFIX='linux-'
EXTENSION='.tar.xz'
# For RC releases

if [ `echo ${1} | sed -n "s/gz.*//p" |wc -l` -gt 0 ] ; then 
    EXTENSION='.tar.gz'
fi

KERNEL=${1}
KERNEL=${KERNEL#$PREFIX}
# Get kernel version from argument
KERNEL=${KERNEL%$EXTENSION}

DIR="/usr/src/${KERNEL}"

# Install build dependancies
apt install build-essential fakeroot dpkg-dev perl libssl-dev bc gnupg dirmngr libelf-dev flex bison

# Create dedicated folder
mkdir "${DIR}"

# Move archive to build directory
mv "${1}" "${DIR}"

# Go to build dir
cd "${DIR}" || exit

# Extract kernel archive
tar xavf "${1}"

# Enter kernel directory
cd "linux-${KERNEL}" || exit

# Get old config
make olddefconfig

# Some optimizations
./scripts/config -d CONFIG_MODULE_SIG_ALL -d CONFIG_MODULE_SIG_KEY -d CONFIG_SYSTEM_TRUSTED_KEYS
./scripts/config -d CONFIG_DEBUG_INFO

# Compile kernel
make deb-pkg -j"$(nproc)" LOCALVERSION=-"$(dpkg --print-architecture)" KDEB_PKGVERSION="$(make kernelversion)-1"

# Optimization
make bindeb-pkg -j"$(nproc)" LOCALVERSION=-"$(dpkg --print-architecture)" KDEB_PKGVERSION="$(make kernelversion)-1"

# Go to parent directory
cd ..

# Install new packages
dpkg -i ./*${KERNEL}*.deb

# Update acpi_call
git clone git://github.com/teleshoes/acpi_call.git /tmp/acpi_call
cd /tmp/acpi_call
make
make install
cd /tmp

# Clean directories
rm -rf /tmp/acpi_call ${DIR}

echo -e "${GREEN} ALL DONE!\n"