build.sh

#!/bin/bash

# Exit immediately if a command exits with a non-zero status
set -euo pipefail

usage() {
  echo "Usage: $0 [--build-dir <dir> | <dir>] [--clean|clean] [--distclean|distclean]"
  return 0
}

PROJECT_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
BUILD_DIR="cmake-build-release"
CLEAN_BUILD=0
POSITIONAL_BUILD_DIR_SET=0

while [[ "$#" -gt 0 ]]; do
  case "$1" in
    --build-dir|-B)
      if [[ "$#" -lt 2 ]]; then
        usage
        exit 1
      fi
      BUILD_DIR="$2"
      POSITIONAL_BUILD_DIR_SET=1
      shift 2
      ;;
    --clean|clean)
      CLEAN_BUILD=1
      shift
      ;;
    --distclean|distclean)
      CLEAN_BUILD=1
      shift
      ;;
    -h|--help)
      usage
      exit 0
      ;;
    *)
      if [[ "${POSITIONAL_BUILD_DIR_SET}" -eq 0 ]]; then
        BUILD_DIR="$1"
        POSITIONAL_BUILD_DIR_SET=1
        shift
      else
        echo "Unknown argument: $1"
        usage
        exit 1
      fi
      ;;
  esac
done

case "${BUILD_DIR}" in
  /*)
    BUILD_DIR_PATH="${BUILD_DIR}"
    ;;
  *)
    BUILD_DIR_PATH="${PROJECT_ROOT}/${BUILD_DIR}"
    ;;
esac

if [[ "${CLEAN_BUILD}" -eq 1 ]]; then
  rm -rf "${BUILD_DIR_PATH}"
fi

cmake_configure_args=(
  -S .
  -B "${BUILD_DIR_PATH}"
  -DBUILD_DOCS=OFF
  -DBUILD_TESTS=ON
  -DBUILD_XBOX=ON
  -DCMAKE_DEPENDS_USE_COMPILER=FALSE
  -DCMAKE_BUILD_TYPE=Release
)

case "$(uname -s)" in
  MINGW*|MSYS*|CYGWIN*)
    if ! cmake --help 2>/dev/null | grep -q "MinGW Makefiles"; then
      echo "Windows builds require a CMake that supports MinGW Makefiles. Install the MSYS2 package 'mingw-w64-x86_64-cmake'."
      exit 1
    fi

    cmake_configure_args+=(
      -G "MinGW Makefiles"
      -DCMAKE_TOOLCHAIN_FILE="${PROJECT_ROOT}/cmake/host-mingw64-clang.cmake"
    )
    ;;
  *)
    ;;
esac

cmake "${cmake_configure_args[@]}"

cmake --build "${BUILD_DIR_PATH}"