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build.sh
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build.sh
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#!/usr/bin/env bash
# get path of current script: https://stackoverflow.com/a/39340259/207661
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
pushd "$SCRIPT_DIR" >/dev/null
set -e
set -x
debug=false
gcc=false
# Parse command line arguments
while [[ $# -gt 0 ]]
do
key="$1"
case $key in
--debug)
debug=true
shift # past argument
;;
--gcc)
gcc=true
shift # past argument
;;
esac
done
function version_less_than_equal_to() { test "$(printf '%s\n' "$@" | sort -V | head -n 1)" = "$1"; }
# check for rpclib
RPC_VERSION_FOLDER="rpclib-2.3.0"
if [ ! -d "./external/rpclib/$RPC_VERSION_FOLDER" ]; then
echo "ERROR: new version of AirSim requires newer rpclib."
echo "please run setup.sh first and then run build.sh again."
exit 1
fi
# check for local cmake build created by setup.sh
if [ -d "./cmake_build" ]; then
if [ "$(uname)" == "Darwin" ]; then
CMAKE="$(greadlink -f cmake_build/bin/cmake)"
else
CMAKE="$(readlink -f cmake_build/bin/cmake)"
fi
else
CMAKE=$(which cmake)
fi
# variable for build output
if $debug; then
build_dir=build_debug
else
build_dir=build_release
fi
if [ "$(uname)" == "Darwin" ]; then
# llvm v8 is too old for Big Sur see
# https://github.com/microsoft/AirSim/issues/3691
#export CC=/usr/local/opt/llvm@8/bin/clang
#export CXX=/usr/local/opt/llvm@8/bin/clang++
#now pick up whatever setup.sh installs
export CC="$(brew --prefix)/opt/llvm/bin/clang"
export CXX="$(brew --prefix)/opt/llvm/bin/clang++"
else
if $gcc; then
export CC="gcc-8"
export CXX="g++-8"
else
export CC="clang-8"
export CXX="clang++-8"
fi
fi
#install EIGEN library
if [[ ! -d "./AirLib/deps/eigen3/Eigen" ]]; then
echo "### Eigen is not installed. Please run setup.sh first."
exit 1
fi
echo "putting build in $build_dir folder, to clean, just delete the directory..."
# this ensures the cmake files will be built in our $build_dir instead.
if [[ -f "./cmake/CMakeCache.txt" ]]; then
rm "./cmake/CMakeCache.txt"
fi
if [[ -d "./cmake/CMakeFiles" ]]; then
rm -rf "./cmake/CMakeFiles"
fi
if [[ ! -d $build_dir ]]; then
mkdir -p $build_dir
fi
# Fix for Unreal/Unity using x86_64 (Rosetta) on Apple Silicon hardware.
CMAKE_VARS=
if [ "$(uname)" == "Darwin" ]; then
CMAKE_VARS="-DCMAKE_APPLE_SILICON_PROCESSOR=x86_64"
fi
pushd $build_dir >/dev/null
if $debug; then
folder_name="Debug"
"$CMAKE" ../cmake -DCMAKE_BUILD_TYPE=Debug $CMAKE_VARS \
|| (popd && rm -r $build_dir && exit 1)
else
folder_name="Release"
"$CMAKE" ../cmake -DCMAKE_BUILD_TYPE=Release $CMAKE_VARS \
|| (popd && rm -r $build_dir && exit 1)
fi
popd >/dev/null
pushd $build_dir >/dev/null
# final linking of the binaries can fail due to a missing libc++abi library
# (happens on Fedora, see https://bugzilla.redhat.com/show_bug.cgi?id=1332306).
# So we only build the libraries here for now
make -j"$(nproc)"
popd >/dev/null
mkdir -p AirLib/lib/x64/$folder_name
mkdir -p AirLib/deps/rpclib/lib
mkdir -p AirLib/deps/MavLinkCom/lib
cp $build_dir/output/lib/libAirLib.a AirLib/lib
cp $build_dir/output/lib/libMavLinkCom.a AirLib/deps/MavLinkCom/lib
cp $build_dir/output/lib/librpc.a AirLib/deps/rpclib/lib/librpc.a
# Update AirLib/lib, AirLib/deps, Plugins folders with new binaries
rsync -a --delete $build_dir/output/lib/ AirLib/lib/x64/$folder_name
rsync -a --delete external/rpclib/$RPC_VERSION_FOLDER/include AirLib/deps/rpclib
rsync -a --delete MavLinkCom/include AirLib/deps/MavLinkCom
rsync -a --delete AirLib Unreal/Plugins/AirSim/Source
rm -rf Unreal/Plugins/AirSim/Source/AirLib/src
# Update all environment projects
for d in Unreal/Environments/* ; do
[ -L "${d%/}" ] && continue
$d/clean.sh
mkdir -p $d/Plugins
rsync -a --delete Unreal/Plugins/AirSim $d/Plugins
done
set +x
echo ""
echo ""
echo "=================================================================="
echo " AirSim plugin is built! Here's how to build Unreal project."
echo "=================================================================="
echo "All environments under Unreal/Environments have been updated."
echo ""
echo "For further info see:"
echo "https://github.com/Microsoft/AirSim/blob/master/docs/build_linux.md"
echo "=================================================================="
popd >/dev/null