rayforce-pylab/Makefile.pyodide at master · RayforceDB/rayforce-pylab · GitHub

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# Makefile for building rayforce-py as Pyodide/WASM module
#
# This builds _rayforce_c.cpython-312-wasm32-emscripten.so
# that can be loaded by Pyodide

# ============================================================================
# Paths (can be overridden via environment variables)
# ============================================================================

XBUILDENV ?= $(HOME)/.pyodide-xbuildenv/xbuildenv
PYODIDE_ROOT = $(XBUILDENV)/pyodide-root
PYTHON_ROOT = $(PYODIDE_ROOT)/cpython/installs/python-3.12.1
PYTHON_INCLUDE = $(PYTHON_ROOT)/include/python3.12

RAYFORCE_WASM ?= $(HOME)/rayforce-wasm
RAYFORCE_PY ?= $(HOME)/rayforce-py
RAYFORCE_CORE ?= $(HOME)/rayforce/core
# Use the Pyodide-specific library (built with SIDE_MODULE=1)
RAYFORCE_LIB = $(RAYFORCE_WASM)/build/librayforce-pyodide.a

BUILD_DIR = $(shell pwd)/build
DIST_DIR = $(shell pwd)/dist

# ============================================================================
# Toolchain
# ============================================================================

CC = emcc
AR = emar

# ============================================================================
# Flags
# ============================================================================

# Python/Pyodide specific flags
# -DPY_CALL_TRAMPOLINE is required for Pyodide module init function calls
# -sRELOCATABLE for proper function table entries
PYODIDE_CFLAGS = -fPIC -Wall -std=c17 -O2 \
	-I$(PYTHON_INCLUDE) \
	-I$(RAYFORCE_CORE) \
	-DSYS_MALLOC \
	-D__EMSCRIPTEN__ \
	-DPY_CALL_TRAMPOLINE \
	-sRELOCATABLE \
	-Wno-macro-redefined \
	-Wno-implicit-function-declaration

# Pyodide shared library flags
# SIDE_MODULE=2 for dynamic linking without main module requirement
# ALLOW_TABLE_GROWTH for dynamic function table expansion
PYODIDE_LDFLAGS = \
	-s SIDE_MODULE=2 \
	-s WASM_BIGINT=1 \
	-s ALLOW_TABLE_GROWTH=1 \
	-s EXPORTED_FUNCTIONS="['_PyInit__rayforce_c']" \
	-L$(RAYFORCE_WASM)/build -lrayforce-pyodide

# ============================================================================
# Sources
# ============================================================================

CAPI_DIR = $(RAYFORCE_PY)/rayforce/capi

CAPI_SRCS = \
	$(CAPI_DIR)/rayforce_c.c \
	$(CAPI_DIR)/raypy_init_from_py.c \
	$(CAPI_DIR)/raypy_init_from_buffer.c \
	$(CAPI_DIR)/raypy_read_from_rf.c \
	$(CAPI_DIR)/raypy_queries.c \
	$(CAPI_DIR)/raypy_io.c \
	$(CAPI_DIR)/raypy_binary.c \
	$(CAPI_DIR)/raypy_eval.c \
	$(CAPI_DIR)/raypy_iter.c \
	$(CAPI_DIR)/raypy_serde.c

# Exclude dynlib (dynamic library loading doesn't work in WASM)
# $(CAPI_DIR)/raypy_dynlib.c

# Local stubs for excluded functionality
STUBS_SRCS = $(shell pwd)/wasm_stubs.c

CAPI_OBJS = $(patsubst $(CAPI_DIR)/%.c,$(BUILD_DIR)/%.o,$(CAPI_SRCS))
STUBS_OBJS = $(BUILD_DIR)/wasm_stubs.o

# Output file
TARGET = _rayforce_c.cpython-312-wasm32-emscripten.so

# ============================================================================
# Targets
# ============================================================================

.PHONY: all clean check dirs

all: check dirs $(DIST_DIR)/$(TARGET)
	@echo "✅ Build complete: $(DIST_DIR)/$(TARGET)"

check:
	@test -f $(PYTHON_INCLUDE)/Python.h || (echo "❌ Python.h not found. Run: make setup-xbuildenv" && exit 1)
	@test -f $(RAYFORCE_LIB) || (echo "❌ librayforce-pyodide.a not found. Build with: cd ~/rayforce-wasm && make pyodide" && exit 1)
	@which emcc > /dev/null || (echo "❌ emcc not found" && exit 1)

dirs:
	@mkdir -p $(BUILD_DIR) $(DIST_DIR)

# Compile C API sources
$(BUILD_DIR)/%.o: $(CAPI_DIR)/%.c
	$(CC) -include $(shell pwd)/pyodide_compat.h -include $(RAYFORCE_CORE)/def.h -c $< $(PYODIDE_CFLAGS) -o $@

# Compile local stubs
$(BUILD_DIR)/wasm_stubs.o: wasm_stubs.c
	$(CC) -c $< $(PYODIDE_CFLAGS) -o $@

# Link into shared library
$(DIST_DIR)/$(TARGET): $(CAPI_OBJS) $(STUBS_OBJS)
	$(CC) -shared -o $@ $(CAPI_OBJS) $(STUBS_OBJS) $(PYODIDE_LDFLAGS)

clean:
	rm -rf $(BUILD_DIR) $(DIST_DIR)

# ============================================================================
# Setup helpers
# ============================================================================

setup-xbuildenv:
	@echo "Downloading Pyodide xbuildenv..."
	@curl -sL https://github.com/pyodide/pyodide/releases/download/0.26.4/xbuildenv-0.26.4.tar.bz2 -o /tmp/xbuildenv.tar.bz2
	@mkdir -p $(HOME)/.pyodide-xbuildenv
	@tar -xjf /tmp/xbuildenv.tar.bz2 -C $(HOME)/.pyodide-xbuildenv
	@echo "✅ xbuildenv installed to $(XBUILDENV)"

# ============================================================================
# Info
# ============================================================================

info:
	@echo "PYTHON_INCLUDE: $(PYTHON_INCLUDE)"
	@echo "RAYFORCE_CORE:  $(RAYFORCE_CORE)"
	@echo "RAYFORCE_LIB:   $(RAYFORCE_LIB)"
	@echo "CAPI_SRCS:      $(CAPI_SRCS)"
	@echo "TARGET:         $(TARGET)"