# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2018-present Team LibreELEC (https://libreelec.tv)

set -e

# setup initial directorys (relative to root)
  CONFIG=config
  SCRIPTS=scripts
  PACKAGES=packages
  SOURCES=${SOURCES_DIR:-$ROOT/sources}
  BUILD_ROOT=${BUILD_DIR:-$ROOT}
  BUILD_BASE=build
  TARGET_IMG=${TARGET_DIR:-$ROOT/target}
  ADDONS=addons

# include ARCH specific options
  if [ -f config/arch.$TARGET_ARCH ]; then
    . config/arch.$TARGET_ARCH
  fi

[ -z "${HOST_NAME}" ] && export HOST_NAME="$($LOCAL_CC -dumpmachine)"
TARGET_NAME=$TARGET_GCC_ARCH-libreelec-linux-gnu${TARGET_ABI}

BUILD=${BUILD_ROOT}/${BUILD_BASE}.${DISTRONAME}-${DEVICE:-$PROJECT}.${TARGET_ARCH}
if [ "${LIBREELEC_VERSION}" = "devel" ] ; then
  BUILD=${BUILD_ROOT}/${BUILD_BASE}.${DISTRONAME}-${DEVICE:-$PROJECT}.${TARGET_ARCH}-${OS_VERSION}-${LIBREELEC_VERSION}
fi

if [ -n "$BUILD_SUFFIX" ]; then
  BUILD=$BUILD-$BUILD_SUFFIX
fi

THREAD_CONTROL=${BUILD}/.threads

TARGET_ADDONS="$TARGET_IMG/$ADDONS/$ADDON_PATH"
ADDON_BUILD="$BUILD/$ADDONS/$1"
STAMPS=$BUILD/.stamps
STAMPS_INSTALL=$BUILD/image/.stamps
DOCS=DOCS
TOOLCHAIN=$BUILD/toolchain
SYSROOT_PREFIX=$TOOLCHAIN/$TARGET_NAME/sysroot
LIB_PREFIX=$SYSROOT_PREFIX/usr
TARGET_PREFIX=$TOOLCHAIN/bin/$TARGET_NAME-

FAKEROOT_SCRIPT=$BUILD/.fakeroot

if [ -z "$INSTALL" ]; then
  INSTALL=$BUILD/image/system
fi

. config/sources

MAKE="$TOOLCHAIN/bin/make"

XORG_PATH_DRI=/usr/lib/dri
XORG_PATH_XKB=/usr/share/X11/xkb
XORG_PATH_XKB_OUTPUT=/var/lib/xkb
XORG_PATH_RGB=/usr/lib/X11/rgb
XORG_PATH_MODULES=/usr/lib/xorg/modules
XORG_PATH_DRIVERS=/usr/lib/xorg/modules/drivers

. config/optimize

# use ARM toolchain on 64/32 split builds
if [ -z "$KERNEL_TOOLCHAIN" -a "$TARGET_KERNEL_ARCH" = "arm64" -a "$TARGET_ARCH" = "arm" ]; then
  if [ "${MACHINE_HARDWARE_NAME}" = "x86_64" ]; then
    KERNEL_TOOLCHAIN="aarch64-none-linux-gnu"
  elif [ "${MACHINE_HARDWARE_NAME}" = "aarch64" ]; then
    KERNEL_TOOLCHAIN="aarch64-none-elf"
  else
    die "No known toolchain available for ${MACHINE_HARDWARE_NAME}."
  fi
fi
if [ -n "$KERNEL_TOOLCHAIN" ]; then
  TARGET_KERNEL_PREFIX=$TOOLCHAIN/lib/gcc-arm-$KERNEL_TOOLCHAIN/bin/$KERNEL_TOOLCHAIN-
else
  TARGET_KERNEL_PREFIX=$TARGET_PREFIX
fi

if [ -z "$CCACHE_DIR" ]; then
  export CCACHE_DIR=${BUILD_ROOT}/.ccache-${TARGET_ARCH}
fi

if [[ -z "$PATH" || ( "$PATH" != "$TOOLCHAIN/bin:$TOOLCHAIN/sbin" && "$PATH" = "${PATH#$TOOLCHAIN/bin:$TOOLCHAIN/sbin:}" ) ]]; then
  export PATH="$TOOLCHAIN/bin:$TOOLCHAIN/sbin${PATH:+":$PATH"}"
fi

# redirect formatted output
export BUILD_INDENT_SIZE=4
SILENT_OUT=3
VERBOSE_OUT=4

if [ "$VERBOSE" = yes ]; then
  exec 3>&1
  exec 4>&1
else
  exec 3>&2
  exec 4>/dev/null
fi

unset LD_LIBRARY_PATH

# multilib? nah
unset CONFIG_SITE

# Ignore custom python installs...
unset PYTHONHOME PYTHONPATH PYTHONSTARTUP
export PYTHONNOUSERSITE=yes #disable PEP 370