#!/bin/bash

# variables
CWD=$(pwd)

PRGNAM=$(basename $CWD)
GITHUB_REPO=debauchee/barrier
VERSION=${VERSION:-latest}
ARCH=${ARCH:-$(uname -m)}
BUILD=1

TAG=gwh
TMP=/tmp/$TAG
PKG=$TMP/pkg-$PRGNAM
OUTPUT=/tmp

REPOSITORY=/var/cache/SlackBuilds.gwh/$PRGNAM

PREFIX=/usr

# nettoyage préalable
rm -fr $PKG $TMP/$PRGNAM

mkdir -p $PKG

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

cd $REPOSITORY
git pull --all

cp -R $REPOSITORY $TMP/$PRGNAM
cd $TMP/$PRGNAM

[ "x$VERSION" == "xlatest" ] && VERSION=$(git tag --sort=-version:refname | head -n1)
[ "x$VERSION" == "x" ] && VERSION=trunk
[ "x$VERSION" == "xtrunk" ] && VERSION="git_r$(git rev-list --count HEAD)_$(git log -1 --format=%h)" || git checkout $VERSION
git submodule update --init --recursive

# lib/platform: Fix encoding for text copied between linux and windows
# https://github.com/debauchee/barrier/commit/dd3ea8adfef868e52098ea24d2ed08320a90e3b9
git cherry-pick -n dd3ea8adfef868e52098ea24d2ed08320a90e3b9

# Add missing cstddef includes for NULL
# https://github.com/debauchee/barrier/commit/4b12265ae5d324b942698a3177e1d8b1749414d7
git cherry-pick -n 4b12265ae5d324b942698a3177e1d8b1749414d7

# configuration
mkdir build
cd build/

cmake -G "Unix Makefiles" \
      -D CMAKE_BUILD_TYPE:STRING=Release \
      -D CMAKE_INSTALL_PREFIX:STRING=/usr \
      -D BARRIER_REVISION:STRING=00000000 \
      -D BARRIER_VERSION_STAGE:STRING=RELEASE \
      ..

# compilation
make -j3

# installation
make install DESTDIR=$PKG

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

find $PKG -name \.git\* -exec rm -fr {} \;

[ -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
# HOW TO EDIT THIS FILE:
# The "handy ruler" below makes it easier to edit a package description.
# Line up the first '|' above the ':' following the base package name, and
# the '|' on the right side marks the last column you can put a character in.
# You must make exactly 11 lines for the formatting to be correct.  It's also
# customary to leave one space after the ':' except on otherwise blank lines.

       |-----handy-ruler------------------------------------------------------|
barrier: barrier (Synergy Fork)
barrier:
barrier: Eliminate the barrier between your machines.
barrier: Barrier is KVM software forked from Symless's synergy 1.9 codebase.
barrier: Synergy was a commercialized reimplementation of the original
barrier: CosmoSynergy written by Chris Schoeneman.
barrier: Whereas synergy has moved beyond its goals from the 1.x era, Barrier
barrier: aims to maintain that simplicity. Barrier will let you use your
barrier: keyboard and mouse from machine A to control machine B (or more).
barrier: It's that simple.
barrier:
EOF

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