pcbjam/scripts/kicad/build-calculator.sh
2026-05-28 17:28:17 +02:00

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Executable file

#!/bin/bash
# Build KiCad PCB Calculator for WebAssembly.
# This builds the standalone pcb_calculator app as a single WASM binary.
#
# Mirrors scripts/kicad/build-pcbnew.sh almost verbatim; differences:
# - separate build tree: build-wasm/kicad-calculator
# - no pcbnew_scripting_stub (calculator doesn't link scripting)
# - embind compiles wasm/bindings/calculator_embind.cpp
# - final make target is `pcb_calculator` (single binary, no kiface MODULE,
# enabled by the EMSCRIPTEN branch we added to pcb_calculator/CMakeLists.txt)
#
# Usage:
# ./scripts/kicad/build-calculator.sh [options]
#
# Options (same as build-pcbnew.sh):
# --full Full clean rebuild (dependencies + KiCad)
# --clean-kicad Clean only KiCad-calculator build directory (not deps)
# --build-deps Build dependencies (default: skip)
# --debug Build with debug symbols (default)
# --release Build optimized without debug symbols
# -j N Parallel compilation jobs (default: 1)
set -e
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "${SCRIPT_DIR}/../common/env.sh"
source "${SCRIPT_DIR}/../common/versions.sh"
source "${SCRIPT_DIR}/../common/functions.sh"
KICAD_DIR="${PROJECT_ROOT}/kicad"
KICAD_BUILD="${BUILD_ROOT}/kicad-calculator"
KICAD_STAMP="${BUILD_ROOT}/stamps/kicad-calculator.stamp"
WASM_LAYER="${PROJECT_ROOT}/wasm"
WX_BUILD="${BUILD_ROOT}/wxwidgets-universal"
# Parse arguments - incremental build by default (optimized for development)
NO_CLEAN=1
FULL_CLEAN=0
SKIP_DEPS=1
DEBUG=0
DIAG_LIST=""
while [[ $# -gt 0 ]]; do
case $1 in
--full)
FULL_CLEAN=1
NO_CLEAN=0
SKIP_DEPS=0
shift
;;
--clean-kicad)
NO_CLEAN=0
shift
;;
--build-deps)
SKIP_DEPS=0
shift
;;
--debug)
DEBUG=1
shift
;;
--release)
DEBUG_BUILD=0
export DEBUG_BUILD
shift
;;
--diag=*)
DIAG_LIST="${1#--diag=}"
shift
;;
--diag)
DIAG_LIST="$2"
shift 2
;;
-j)
export JOBS="$2"
shift 2
;;
-j*)
export JOBS="${1#-j}"
shift
;;
*)
shift
;;
esac
done
# Diagnostic preprocessor defines (same as build-pcbnew.sh)
DIAG_DEFINES=""
if [ -n "${DIAG_LIST}" ]; then
IFS=',' read -ra _diag_cats <<< "${DIAG_LIST}"
for _cat in "${_diag_cats[@]}"; do
case "${_cat}" in
gal) DIAG_DEFINES="${DIAG_DEFINES} -DKICAD_DIAG_GAL=1" ;;
coroutine) DIAG_DEFINES="${DIAG_DEFINES} -DKICAD_DIAG_COROUTINE=1" ;;
ctor) DIAG_DEFINES="${DIAG_DEFINES} -DKICAD_DIAG_CTOR=1" ;;
all) DIAG_DEFINES="${DIAG_DEFINES} -DKICAD_DIAG_GAL=1 -DKICAD_DIAG_COROUTINE=1 -DKICAD_DIAG_CTOR=1" ;;
"") ;;
*) log_warn "Unknown --diag category: '${_cat}' (valid: gal, coroutine, ctor, all)" ;;
esac
done
log_info "Diagnostic logging enabled:${DIAG_DEFINES}"
fi
log_info "Using ${JOBS} parallel jobs"
# Step 1: Clean build directories
if [ $FULL_CLEAN -eq 1 ]; then
log_info "Full clean: removing all stamps and build directories..."
rm -rf "${STAMPS_DIR}"/*
rm -rf "${BUILD_ROOT}/deps"/*
rm -rf "${BUILD_ROOT}/wxwidgets-universal"
rm -rf "${BUILD_ROOT}/stubs"
rm -rf "${KICAD_BUILD}"
rm -rf "${SYSROOT}"/*
elif [ $NO_CLEAN -eq 0 ]; then
log_info "Cleaning KiCad Calculator build directory..."
rm -rf "${KICAD_BUILD}" "${KICAD_STAMP}"
else
log_info "Incremental build (use --clean-kicad or --full to clean)"
fi
# Step 2: Build dependencies (shared sysroot with pcbnew)
if [ $SKIP_DEPS -eq 0 ]; then
log_info "Building dependencies..."
"${SCRIPT_DIR}/../deps/build-all-deps.sh" --with-occ
else
log_info "Skipping dependencies (use --build-deps or --full to build)"
fi
# Step 4: Build wxWidgets (shared with pcbnew)
log_info "Building wxWidgets..."
"${SCRIPT_DIR}/../build-wxuniversal-wasm.sh" --no-clean
log_info "Building KiCad PCB Calculator ${KICAD_VERSION} for WASM..."
# Step 5: Set build type (same flags as pcbnew)
if [ "${DEBUG_BUILD:-0}" = "1" ] || [ $DEBUG -eq 1 ]; then
BUILD_TYPE="Debug"
EXTRA_FLAGS="-g -O1 -fexceptions -matomics -mbulk-memory"
LINKER_DEBUG_FLAGS="-O1 -g -gseparate-dwarf -fexceptions"
log_info "Building Calculator in DEBUG mode (separate DWARF for smaller main binary)"
else
BUILD_TYPE="Release"
EXTRA_FLAGS="-O2 -fexceptions -matomics -mbulk-memory"
LINKER_DEBUG_FLAGS="-O0 -fexceptions"
log_info "Building Calculator in RELEASE mode (skipping wasm-opt due to memory limits)"
fi
# Step 6: Create build directory
mkdir -p "${KICAD_BUILD}"
cd "${KICAD_BUILD}"
# Step 6.1: Build stub libraries the calculator links against.
# pcbnew_scripting_stub is omitted — calculator doesn't link scripting.
STUBS_DIR="${PROJECT_ROOT}/wasm/stubs"
STUBS_BUILD="${BUILD_ROOT}/stubs"
mkdir -p "${STUBS_BUILD}"
log_info "Building stub libraries..."
# libgit2 stub: single_top.cpp calls git_libgit2_init / git_libgit2_shutdown.
emcc -c "${STUBS_DIR}/libgit2_stub.c" -o "${STUBS_BUILD}/libgit2_stub.o"
emar rcs "${STUBS_BUILD}/libgit2_stub.a" "${STUBS_BUILD}/libgit2_stub.o"
# curl stub: referenced by common/.
emcc -c "${STUBS_DIR}/curl_stub.c" -o "${STUBS_BUILD}/curl_stub.o"
emar rcs "${STUBS_BUILD}/libcurl_stub.a" "${STUBS_BUILD}/curl_stub.o"
# NNG stub: required because KICAD_IPC_API=ON. Sockets don't work in WASM.
emcc -c -I"${STUBS_DIR}" "${STUBS_DIR}/nng_stub.c" -o "${STUBS_BUILD}/nng_stub.o"
emar rcs "${STUBS_BUILD}/libnng_stub.a" "${STUBS_BUILD}/nng_stub.o"
log_info "Stub libraries built"
# Step 6.2: Swap EMSDK wasm-opt for stub (real one runs on host post-build).
if [ -z "${EMSDK}" ]; then
log_error "EMSDK environment variable is not set."
exit 1
fi
EMSDK_WASM_OPT="${EMSDK}/upstream/bin/wasm-opt"
if [ -f "${EMSDK_WASM_OPT}" ] && [ ! -f "${EMSDK_WASM_OPT}.real" ]; then
log_info "Backing up real wasm-opt..."
mv "${EMSDK_WASM_OPT}" "${EMSDK_WASM_OPT}.real"
fi
cp "${STUBS_DIR}/wasm-opt-stub.sh" "${EMSDK_WASM_OPT}"
chmod +x "${EMSDK_WASM_OPT}"
log_info "wasm-opt stub installed (asyncify will run on host)"
# Step 6.3: Swap wasm-emscripten-finalize for stub (real one runs on host).
EMSDK_FINALIZE="${EMSDK}/upstream/bin/wasm-emscripten-finalize"
if [ -f "${EMSDK_FINALIZE}" ] && [ ! -f "${EMSDK_FINALIZE}.real" ]; then
log_info "Backing up real wasm-emscripten-finalize..."
mv "${EMSDK_FINALIZE}" "${EMSDK_FINALIZE}.real"
fi
cp "${STUBS_DIR}/wasm-emscripten-finalize-stub.sh" "${EMSDK_FINALIZE}"
chmod +x "${EMSDK_FINALIZE}"
log_info "wasm-emscripten-finalize stub installed (finalize will run on host)"
# Step 6.5: Verify WASM support is in KiCad fork
KICAD_CMAKE="${KICAD_DIR}/CMakeLists.txt"
if ! grep -q "msw|qt|gtk|osx|wasm" "${KICAD_CMAKE}"; then
log_error "KiCad fork is missing WASM port detection support."
log_error "Please ensure the kicad submodule has WASM modifications."
exit 1
fi
KIPLATFORM_CMAKE="${KICAD_DIR}/libs/kiplatform/CMakeLists.txt"
if ! grep -q "KICAD_WX_PORT STREQUAL wasm" "${KIPLATFORM_CMAKE}"; then
log_error "KiCad fork is missing kiplatform WASM support."
log_error "Please ensure the kicad submodule has WASM modifications."
exit 1
fi
log_info "KiCad WASM support verified"
# Step 7: Configure with CMake
log_info "Configuring KiCad Calculator with CMake..."
CCACHE_OPTS=""
if command -v ccache &> /dev/null; then
CCACHE_OPTS="-DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache"
log_info "Using ccache for compilation"
fi
emcmake cmake "${KICAD_DIR}" \
${CCACHE_OPTS} \
-DCMAKE_BUILD_TYPE=${BUILD_TYPE} \
-DCMAKE_INSTALL_PREFIX="${SYSROOT}" \
-DCMAKE_MODULE_PATH="${WASM_LAYER}/cmake" \
-DSYSROOT="${SYSROOT}" \
-DCMAKE_POLICY_VERSION_MINIMUM=3.5 \
-DCMAKE_CXX_FLAGS="${EXTRA_FLAGS} -pthread -sUSE_ZLIB=1 -DKICAD_USE_PLATFORM_WASM=1${DIAG_DEFINES} -I${SYSROOT}/include -I${STUBS_DIR}" \
-DCMAKE_C_FLAGS="${EXTRA_FLAGS} -pthread -sUSE_ZLIB=1 -I${SYSROOT}/include -I${STUBS_DIR}" \
-DCMAKE_EXE_LINKER_FLAGS="${LINKER_DEBUG_FLAGS} -pthread -sUSE_ZLIB=1 -sASYNCIFY=1 -sDYNCALLS=1 -sASYNCIFY_STACK_SIZE=65536 -sUSE_PTHREADS=1 -sPTHREAD_POOL_SIZE='navigator.hardwareConcurrency' -sPTHREAD_POOL_SIZE_STRICT=0 -sALLOW_MEMORY_GROWTH=1 -sINITIAL_MEMORY=256MB -sMAXIMUM_MEMORY=4GB -sMAX_WEBGL_VERSION=2 -sEXPORTED_RUNTIME_METHODS=['ccall','cwrap','UTF8ToString','stringToUTF8','lengthBytesUTF8','dynCall'] -sDEFAULT_LIBRARY_FUNCS_TO_INCLUDE=['\$dynCall'] --bind -L${SYSROOT}/lib ${STUBS_BUILD}/libgit2_stub.a ${STUBS_BUILD}/libcurl_stub.a ${STUBS_BUILD}/libnng_stub.a ${STUBS_BUILD}/calculator_embind.o" \
-DCMAKE_PREFIX_PATH="${SYSROOT};${WX_BUILD}" \
-DwxWidgets_CONFIG_EXECUTABLE="${WX_BUILD}/wx-config" \
\
-DKICAD_BUILD_QA_TESTS=OFF \
-DKICAD_SPICE=OFF \
-DKICAD_USE_EGL=OFF \
-DKICAD_USE_BUNDLED_GLEW=ON \
-DKICAD_BUILD_3D_VIEWER_WASM=OFF \
-DKICAD_IPC_API=ON \
\
-DZSTD_ROOT="${SYSROOT}" \
-DZSTD_INCLUDE_DIR="${SYSROOT}/include" \
-DZSTD_LIBRARY="${SYSROOT}/lib/libzstd.a" \
-DGLM_INCLUDE_DIR="${SYSROOT}/include" \
-DGLM_VERSION="0.9.9.8" \
-DBOOST_ROOT="${SYSROOT}" \
-DBoost_INCLUDE_DIR="${SYSROOT}/include" \
-DBoost_LIBRARY_DIR="${SYSROOT}/lib" \
-DBoost_NO_SYSTEM_PATHS=ON \
-DBoost_NO_BOOST_CMAKE=ON \
-DFREETYPE_INCLUDE_DIR_ft2build="${SYSROOT}/include/freetype2" \
-DFREETYPE_INCLUDE_DIR_freetype2="${SYSROOT}/include/freetype2" \
-DFREETYPE_LIBRARY="${SYSROOT}/lib/libfreetype.a" \
-DHarfBuzz_INCLUDE_DIR="${SYSROOT}/include/harfbuzz" \
-DHarfBuzz_LIBRARY="${SYSROOT}/lib/libharfbuzz.a" \
-DOCC_INCLUDE_DIR="${SYSROOT}/include/opencascade" \
-DOCC_LIBRARY_DIR="${SYSROOT}/lib" \
-DProtobuf_INCLUDE_DIR="${SYSROOT}/include" \
-DProtobuf_LIBRARY="${SYSROOT}/lib/libprotobuf.a" \
-DProtobuf_LITE_LIBRARY="${SYSROOT}/lib/libprotobuf-lite.a" \
-DProtobuf_PROTOC_EXECUTABLE="${SYSROOT}/bin/protoc" \
-DODBC_CONFIG:STRING="stub-for-wasm" \
-DODBCLIB:STRING="" \
-DODBC_CFLAGS:STRING="" \
-DODBC_LINK_FLAGS:STRING="" \
-DODBC_LIBRARIES:STRING="" \
\
-DBUILD_GITHUB_PLUGIN=OFF \
-DKICAD_PCM=OFF \
\
-DHAVE_STRCASECMP=1 \
-DHAVE_STRNCASECMP=1
# Step 7.1: Compile Embind bindings (after CMake so config.h exists).
EMBIND_SRC="${PROJECT_ROOT}/wasm/bindings/calculator_embind.cpp"
if [ -f "$EMBIND_SRC" ]; then
log_info "Compiling Embind bindings..."
WX_CXXFLAGS=$("${WX_BUILD}/wx-config" --cxxflags 2>/dev/null || echo "-I${WX_BUILD}/lib/wx/include/emscripten-unicode-static-3.2 -I${PROJECT_ROOT}/wxwidgets/include")
KICAD_INCLUDES="-I${KICAD_BUILD} -I${KICAD_DIR}/include -I${KICAD_DIR}/pcb_calculator -I${KICAD_DIR}/common"
KICAD_INCLUDES+=" -I${KICAD_DIR}/libs/core/include -I${KICAD_DIR}/libs/kimath/include -I${KICAD_DIR}/libs/kiplatform/include"
KICAD_INCLUDES+=" -I${KICAD_DIR}/thirdparty/clipper2/Clipper2Lib/include"
KICAD_INCLUDES+=" -I${KICAD_DIR}/thirdparty/nlohmann_json"
KICAD_INCLUDES+=" -I${KICAD_DIR}/thirdparty/dynamic_bitset"
KICAD_INCLUDES+=" -I${KICAD_DIR}/thirdparty/nanodbc"
KICAD_INCLUDES+=" -I${KICAD_DIR}/thirdparty/picosha2"
KICAD_INCLUDES+=" -I${KICAD_DIR}/thirdparty"
KICAD_INCLUDES+=" -I${SYSROOT}/include"
em++ -std=c++20 -c ${EXTRA_FLAGS} ${WX_CXXFLAGS} ${KICAD_INCLUDES} "$EMBIND_SRC" -o "${STUBS_BUILD}/calculator_embind.o"
fi
# Step 8: Build pcb_calculator target (single-binary WASM executable)
log_info "Building pcb_calculator..."
emmake make -j${JOBS} pcb_calculator
# Step 8.1: Build bitmap resources (images.tar.gz)
log_info "Building bitmap resources..."
emmake make bitmap_archive_build
# Step 9: Create stamp file
create_stamp "${KICAD_STAMP}"
log_info "KiCad Calculator build complete!"
log_info "Output: ${KICAD_BUILD}/pcb_calculator/pcb_calculator.js"