#!/bin/sh

# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2016-present Team LibreELEC (https://libreelec.tv)

# set media_build version you want to use
if [ -z "$1" ]; then
  echo "Usage: $0 crazycat | tbs"
  exit 0
else
  MEDIA_BUILD_PROJECT="$1"  
fi

# name of the package
DVB_MKPKG_FOLDER="$(pwd)"

# crazycat
if [ "$MEDIA_BUILD_PROJECT" = "crazycat" ]; then
  MEDIA_BUILD_URL="https://github.com/crazycat69/media_build.git"
  MEDIA_TREE_URL="https://github.com/crazycat69/linux_media.git"
  MEDIA_TREE_BRANCH="latest"
  MEDIA_BUILD_NAME="crazycat"

# tbs oss
elif [ "$MEDIA_BUILD_PROJECT" = "tbs" ]; then
  MEDIA_BUILD_URL="https://github.com/tbsdtv/media_build.git"
  MEDIA_TREE_URL="https://github.com/tbsdtv/linux_media.git"
  MEDIA_TREE_BRANCH="latest"
  MEDIA_BUILD_NAME="tbs"

# exit
else
  echo "exit: no valid project"
  exit 0
fi

# remove old files
echo "removing old sources ..."
rm -rf $MEDIA_BUILD_NAME*/

################################################################################

# media_build dl

echo "getting media_build sources ..."

if [ ! -d media_build.git ]; then
  git clone $MEDIA_BUILD_URL media_build/
fi

#get log
cd media_build/
  git pull
  git checkout $MEDIA_BUILD_HASH
  GIT_LOG_MEDIA_BUILD=`git log --pretty=oneline -n1`

cd $DVB_MKPKG_FOLDER/

# media_tree dl
echo "getting sources ..."
  if [ ! -d linux_media.git ]; then
    git clone --depth=1 $MEDIA_TREE_URL -b $MEDIA_TREE_BRANCH media_tree
  fi

#get log
cd media_tree/
  git pull
  GIT_LOG_MEDIA_TREE=`git log --pretty=oneline -n1`
  GIT_REV=`git log -n1 --pretty=format:"%ad" --date=short`

# hack/workaround for borked upstream kernel/media_build
# without removing atomisp there a lot additional includes that 
# slowdown build process after modpost from 3min to 6min
# even if atomisp is disabled via kernel.conf
  rm -rf drivers/staging/media/atomisp
  sed -i 's|^.*drivers/staging/media/atomisp.*$||' $DVB_MKPKG_FOLDER/media_tree/drivers/staging/media/Kconfig
  
cd $DVB_MKPKG_FOLDER/

################################################################################

# collecting files from media_tree
echo "create media_tree tar"
cd media_build/linux
make tar DIR="$DVB_MKPKG_FOLDER/media_tree/"

cd $DVB_MKPKG_FOLDER 

# cleanup
rm -rf media_tree/ 
rm -rf media_build/.git/

# rename buildfolder
mv media_build/ $MEDIA_BUILD_NAME-$GIT_REV/

# log used versions into LE_versions
echo "package include: $MEDIA_BUILD_NAME\n
media_build commit: $GIT_LOG_MEDIA_BUILD
media_build url: $MEDIA_BUILD_URL
\n
media_tree commit: $GIT_LOG_MEDIA_TREE
media_tree url: $MEDIA_TREE_URL
\n
package date: $(date +%F_%H:%M:%S)" > $MEDIA_BUILD_NAME-$GIT_REV/LE_versions

################################################################################

# pack sources
echo "packing sources ..."
tar cvJf $MEDIA_BUILD_NAME-$GIT_REV.tar.xz $MEDIA_BUILD_NAME-$GIT_REV

echo "remove temporary sourcedir ..."
rm -rf $MEDIA_BUILD_NAME-$GIT_REV