make.sh

#!/bin/bash

# ------------------------------------------------------------------------------------------------ #
#                                This file is part of CosmoScout VR                                #
# ------------------------------------------------------------------------------------------------ #

# SPDX-FileCopyrightText: German Aerospace Center (DLR) <cosmoscout@dlr.de>
# SPDX-License-Identifier: MIT

# Exit on error.
set -e

# ------------------------------------------------------------------------------------------------ #
# Default build mode is release, if "export COSMOSCOUT_DEBUG_BUILD=true" is executed before, the   #
# application will be built in debug mode.                                                         #
# Usage:                                                                                           #
#    ./make.sh [additional CMake flags, defaults to -G "Eclipse CDT4 - Unix Makefiles"]            #
# Examples:                                                                                        #
#    ./make.sh                                                                                     #
#    ./make.sh -G "Unix Makefiles"                                                                 #
#    ./make.sh -G "Eclipse CDT4 - Unix Makefiles" -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \           #
#                      -DCMAKE_C_COMPILER_LAUNCHER=ccache                                          #
# ------------------------------------------------------------------------------------------------ #

# create some required variables -------------------------------------------------------------------

# The CMake generator and other flags can be passed as parameters.
CMAKE_FLAGS=(-G "Eclipse CDT4 - Unix Makefiles")
if [ $# -ne 0 ]; then
  CMAKE_FLAGS=( "$@" )
fi

# Check if ComoScout VR debug build is enabled with "export COSMOSCOUT_DEBUG_BUILD=true".
BUILD_TYPE=Release
case "$COSMOSCOUT_DEBUG_BUILD" in
  (true) echo "CosmoScout VR debug build is enabled!"; BUILD_TYPE=Debug;
esac

# Check if unity build is enabled with "export COSMOSCOUT_USE_UNITY_BUILD=true".
UNITY_BUILD=Off
case "$COSMOSCOUT_USE_UNITY_BUILD" in
  (true) echo "Unity build is enabled!"; UNITY_BUILD=On;
esac

# Check if precompiled headers should be used with "export COSMOSCOUT_USE_PCH=true".
PRECOMPILED_HEADERS=Off
case "$COSMOSCOUT_USE_PCH" in
  (true) echo "Precompiled headers are enabled!"; PRECOMPILED_HEADERS=On;
esac

# This directory should contain the top-level CMakeLists.txt - it is assumed to reside in the same
# directory as this script.
CMAKE_DIR="$( cd "$( dirname "$0" )" && pwd )"

# Get the current directory - this is the default location for the build and install directory.
CURRENT_DIR="$(pwd)"

# The build directory.
BUILD_DIR="$CURRENT_DIR/build/linux-$BUILD_TYPE"

# The install directory.
INSTALL_DIR="$CURRENT_DIR/install/linux-$BUILD_TYPE"

# This directory should be used as the install directory for make_externals.sh.
EXTERNALS_INSTALL_DIR="$CURRENT_DIR/install/linux-externals-$BUILD_TYPE"

# create the build directory if necessary ----------------------------------------------------------

if [ ! -d "$BUILD_DIR" ]; then
  mkdir -p "$BUILD_DIR"
fi

# configure, compile & install ---------------------------------------------------------------------

cd "$BUILD_DIR"
cmake "${CMAKE_FLAGS[@]}" -DCMAKE_INSTALL_PREFIX="$INSTALL_DIR" \
      -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DCOSMOSCOUT_EXTERNALS_DIR="$EXTERNALS_INSTALL_DIR" \
      -DCMAKE_UNITY_BUILD=$UNITY_BUILD -DCOSMOSCOUT_USE_PRECOMPILED_HEADERS=$PRECOMPILED_HEADERS \
      -DCMAKE_EXPORT_COMPILE_COMMANDS=On "$CMAKE_DIR"

cmake --build . --target install --parallel "$(nproc)"

# Delete empty files installed by cmake
find "$INSTALL_DIR" -type d -empty -delete

echo "Finished successfully."