#!/bin/bash

# load the target kernel version in tmp/UNAME_R
# If that file doesn't exist or does not match the latest installed kernel,
# then ./prepare likely hasn't been run for that kernel, so we exit.
UNAME_R_FILE="tmp/UNAME_R"
UNAME_R="`[ -f "$UNAME_R_FILE" ] && cat "$UNAME_R_FILE" || echo -n ""`"
UNAME_R_TEST="`rpm -q kernel --last | head -n1 | sed -e 's/^kernel-//g' -e 's/\s.*//g'`"
if [ "$UNAME_R" != "$UNAME_R_TEST" ]; then
 echo "error: prepare must be run first for kernel $UNAME_R_TEST" >&2
 exit 1
fi

cd rpmbuild
cd BUILD/kernel-`egrep -o '^[0-9]+\.[0-9]+' <<< "$UNAME_R"`.`egrep -o 'fc[0-9]+' <<< "$UNAME_R"`
cd linux-"$UNAME_R"

# sudo make SUBDIRS=drivers/media/usb/cx231xx modules_install  # I don't think this works
sudo cp -p drivers/media/usb/cx231xx/*.ko \
           /lib/modules/"$UNAME_R"/kernel/drivers/media/usb/cx231xx/
sudo chown root:root /lib/modules/"$UNAME_R"/kernel/drivers/media/usb/cx231xx/*.ko
sudo depmod "$UNAME_R"
if [ "$UNAME_R" = "`uname -r`" ]; then
 sudo modprobe cx231xx
 R=$?
 if [ $R -eq 0 ]; then
  echo "The patched driver/module has been installed and loaded." >&2
 else
  echo "The patched driver/module has been installed, but could not be loaded." >&2
  echo "Run \`dmesg\` for more info." >&2
  exit $R
 fi
else
 echo "The patched driver/module has been installed.  Please reboot into" >&2
 echo "kernel $UNAME_R to use it." >&2
fi