#!/bin/bash
set -e

install_kernel(){
	local VERSION=$1

	if [[ -z $VERSION ]]; then
		echo "Please specify a kernel version."
		exit 1
	fi

	local MAJOR_VERSION=${VERSION:0:1}
	
	if [[ "$VERSION" == *-rc* ]]; then
		[ -d /usr/src/linux-${VERSION} ] || curl -sSL https://kernel.org/pub/linux/kernel/v${MAJOR_VERSION}.x/testing/linux-${VERSION}.tar.xz | tar -v -C /usr/src -xJ
	else
		[ -d /usr/src/linux-${VERSION} ] || curl -sSL https://www.kernel.org/pub/linux/kernel/v${MAJOR_VERSION}.x/linux-${VERSION}.tar.xz | tar -v -C /usr/src -xJ
	fi

	cd /usr/src/linux-${VERSION}

	nice -19 make -j$JOBS KDEB_PKGVERSION=$PKGVERSION INSTALL_MOD_STRIP=1 deb-pkg
}

install_kernel $@