#!/bin/bash

# variables

TAG=gwh
TMP=/tmp/$TAG
OUTPUT=/tmp
CWD=$(pwd)
PRGNAM=$(basename $CWD)
PKG=$TMP/pkg-$PRGNAM

REPOSITORY=/home/installs/SlackBuilds/_repositories/$PRGNAM

GITHUB_REPO=Fred78290/nct6687d
VERSION=${VERSION:-"trunk"}
KERNEL_VERSION=$(uname -r)

ARCH=$(uname -m)
BUILD=3

PREFIX=/usr

SLCKFLAGS="-fPIC -O2"

mkdir -p $PKG

# mise en place
[ ! -e $REPOSITORY ] && git clone https://github.com/${GITHUB_REPO} $REPOSITORY
cd $REPOSITORY
git pull --all

rm -fr $PKG $TMP/$PRGNAM

cp -R $REPOSITORY $TMP/$PRGNAM
cd $TMP/$PRGNAM
case $VERSION in
    trunk)
        VERSION="git_r$(git rev-list --count HEAD)_$(git log -1 --format=%h)"
        ;;
    latest)
        VERSION=$(git tag --sort=-taggerdate | head -n1)
        git checkout $VERSION
        ;;
    *)
        git checkout $VERSION
        ;;
esac

# compilation
make

# installation
mkdir -p $PKG/lib/modules/${KERNEL_VERSION}/kernel/drivers/hwmon/
cp ${KERNEL_VERSION}/nct6687.ko $PKG/lib/modules/${KERNEL_VERSION}/kernel/drivers/hwmon/

mkdir -p $PKG/etc/modprobe.d/
cat <<EOF > $PKG/etc/modprobe.d/blacklist_nct6683.conf
# Do not load the nct6683 module on boot.
blacklist nct6683
# uncomment the line below if blacklisting is not sufficient
# install nct6683 /bin/true
EOF

mkdir -p $PKG/usr/doc/$PRGNAM/
cp -R images/ LICENSE *.md $PKG/usr/doc/$PRGNAM/

# correction
cd $PKG
chown -R root:root *

[ -d $PKG/usr/man ] && find $PKG/usr/man -type f -name "*.?" -exec gzip -9f {} \;

# Strip binaries
( cd $PKG
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
)


# embaumement
mkdir -p $PKG/install
cat <<EOF > $PKG/install/slack-desc
$PRGNAM: $PRGNAM (Linux kernel module for Nuvoton NCT6687-R)
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM: https://github.com/${GITHUB_REPO}
$PRGNAM:
EOF

# empaquetage
cd $PKG
rm -f $PKG/{,usr/}lib$(uname -m | grep -o 64)/*.la
/sbin/makepkg --linkadd y --chown n --prepend $OUTPUT/$PRGNAM-$(echo $VERSION | sed 's/-//g')_${KERNEL_VERSION}-$ARCH-$BUILD$TAG.txz