ISL29018 build script

#!/bin/bash
# Script to build the ISL29018 module
# Modified for Arch Linux from ChrUbuntu's cros-haswell-modules.sh
# Pedro Nariyoshi

set -e

# Create a temp directory for our work
tempbuild=`mktemp -d`
cd $tempbuild

# Determine kernel version
archkernver=$(uname -r)
kernver=$(uname -r | cut -d'-' -f 1)

# Install necessary deps to build a kernel
echo "Installing linux-headers..."
sudo pacman -S --needed linux-headers

# Grab kernel source
echo "Fetching kernel sources..."
wget https://www.kernel.org/pub/linux/kernel/v4.x/linux-${kernver}.tar.gz
echo "Extracting kernel sources..."
tar xfvz linux-${kernver}.tar.gz
cd linux-${kernver}

# Need this
cp /usr/lib/modules/${archkernver}/build/Module.symvers .

# Prep tree
zcat /proc/config.gz > ./.config
make oldconfig
echo CONFIG_SENSORS_ISL29018=m >> .config
make prepare
make modules_prepare

echo "Building modules..."
make SUBDIRS=drivers/staging/iio/light/ modules

echo "Installing modules..."
sudo mkdir -p /lib/modules/$archkernver/kernel/drivers/staging/iio/light/
sudo cp drivers/staging/iio/light/isl29018.ko /lib/modules/$archkernver/kernel/drivers/staging/iio/light/
sudo gzip /lib/modules/$archkernver/kernel/drivers/staging/iio/light/isl29018.ko

sudo depmod -a $archkernver
sudo modprobe isl29018