Makefile

BIN_DIR := bin

# Utilities
FORMAT := clang-format
FIND := find
XARGS := xargs
MKDIR := mkdir
GREP := grep
AWK := awk


.PHONY: FORCE


all: $(BIN_DIR) FORCE # Build the most recently built target.
	cd $(BIN_DIR); \
		cmake .. $(CMAKE_ARGS); \
		cmake --build .


run: build FORCE # Run Elona foobar (debug).
	./$(BIN_DIR)/Elona_foobar


build: $(BIN_DIR) FORCE # Build Elona foobar (debug).
	cd $(BIN_DIR); \
		cmake .. -DELONA_BUILD_TARGET=GAME -DCMAKE_BUILD_TYPE=Debug $(CMAKE_ARGS); \
		cmake --build . --config Debug


run_release: build_release FORCE # Run Elona foobar (release).
	./$(BIN_DIR)/Elona_foobar


build_release: $(BIN_DIR) FORCE # Build Elona foobar (release).
	cd $(BIN_DIR); \
		cmake .. -DELONA_BUILD_TARGET=GAME -DCMAKE_BUILD_TYPE=Release $(CMAKE_ARGS); \
		cmake --build . --config Release
	@echo "\"You've been a faithful servant of me. Here, use it wisely.\""
	@echo "Something is placed at $(BIN_DIR)."


launcher: FORCE # Build Elona foobar Launcher (debug)
	cd $(BIN_DIR); \
		cmake .. -DELONA_BUILD_TARGET=LAUNCHER -DCMAKE_BUILD_TYPE=Debug $(CMAKE_ARGS); \
		cmake --build . --config Debug


launcher_release: FORCE # Build Elona foobar Launcher (release)
	cd $(BIN_DIR); \
		cmake .. -DELONA_BUILD_TARGET=LAUNCHER -DCMAKE_BUILD_TYPE=Release $(CMAKE_ARGS); \
		cmake --build . --config Release


tests: test_runner FORCE # Run all tests.
	cd $(BIN_DIR); \
		./Elona_foobar --durations=yes


test_runner: $(BIN_DIR) FORCE # Build test runner.
	-@$(RM) -rf ./$(BIN_DIR)/tests
	cd $(BIN_DIR); \
		cmake .. -DELONA_BUILD_TARGET=TESTS -DCMAKE_BUILD_TYPE=Debug $(CMAKE_ARGS); \
		cmake --build . --config Debug


$(BIN_DIR):
	$(MKDIR) $(BIN_DIR)


clean: FORCE # Clean up built products.
	-@$(RM) -rf $(BIN_DIR)


# Format src/*.{hpp,cpp} except under src/thirdparty.
format: FORCE # Format all C++ source files.
	$(FIND) src \( -type d -name "thirdparty" -prune \) -or \( -name "*.cpp" -or -name "*.hpp" \) -print0 | \
		$(XARGS) -n 1 -0 -I{} sh -c "$(FORMAT) -i {}; echo {}"
	git diff
	test -z "$$(git status --short)"


docgen: # Generate ldoc files from C++ sources.
	cargo run --release --manifest-path tools/docgen/Cargo.toml -- -f -o doc/api src/elona/lua_env


ldoc: FORCE # Generate LDoc.
	-@$(RM) -rf $(BIN_DIR)/doc
	-@$(RM) -rf doc/generated
	mkdir -p $(BIN_DIR)/doc
	cp -r doc/topics $(BIN_DIR)/doc
	cp -r doc/examples $(BIN_DIR)/doc
	cp doc/static/* $(BIN_DIR)/doc/
	cd $(BIN_DIR) && ldoc -c ../doc/config.ld -l ../doc -s ../doc/static ../doc/api/
	cp -r $(BIN_DIR)/doc doc/generated


luacheck: FORCE # Run luacheck.
	luacheck --version
	luacheck runtime/mod/
	luacheck src/tests/lua


rebuild: clean build FORCE # Clean and build Elona.


help: FORCE # Show this help.
	@$(GREP) '^[a-zA-Z_-]*:.* # .*' $(MAKEFILE_LIST) \
		| $(AWK) 'BEGIN {FS = ":.* # "}; {printf "%-25s%s\n", $$1, $$2}'