libvieter/Makefile

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Makefile
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# https://spin.atomicobject.com/2016/08/26/makefile-c-projects/ was a great
# base for this Makefile
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LIB_FILENAME ?= libvieter.a
BUILD_DIR ?= build
SRC_DIR ?= src
TEST_DIR ?= test
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INC_DIRS ?= include
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LIB := $(BUILD_DIR)/$(LIB_FILENAME)
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SRCS != find '$(SRC_DIR)' -iname '*.c'
SRCS_H != find $(INC_DIRS) -iname '*.h'
SRCS_TEST != find '$(TEST_DIR)' -iname '*.c'
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OBJS := $(SRCS:%=$(BUILD_DIR)/%.o)
OBJS_TEST := $(SRCS_TEST:%=$(BUILD_DIR)/%.o)
DEPS := $(SRCS:%=$(BUILD_DIR)/%.d) $(SRCS_TEST:%=$(BUILD_DIR)/%.d)
BINS_TEST := $(OBJS_TEST:%.c.o=%)
TARGETS_TEST := $(BINS_TEST:%=test-%)
TARGETS_MEM_TEST := $(BINS_TEST:%=test-mem-%)
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INC_FLAGS := $(addprefix -I,$(INC_DIRS))
# -MMD: generate a .d file for every source file. This file can be imported by
# make and makes make aware that a header file has been changed, ensuring an
# object file is also recompiled if only a header is changed.
# -MP: generate a dummy target for every header file (according to the docs it
# prevents some errors when removing header files)
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CFLAGS ?= -MMD -MP -g
VIETERCFLAGS := $(INC_FLAGS) $(CFLAGS) -Wall -Wextra
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.PHONY: all
all: vieter
# =====COMPILATION=====
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# Utility used by the CI to lint
.PHONY: objs
objs: $(OBJS)
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.PHONY: vieter
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vieter: $(LIB)
$(LIB): $(OBJS)
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ar -rcs $@ $(OBJS)
$(BUILD_DIR)/$(SRC_DIR)/%.c.o: $(SRC_DIR)/%.c
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mkdir -p $(dir $@)
$(CC) $(VIETERCFLAGS) -c $< -o $@
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# =====TESTING=====
.PHONY: test
test: $(TARGETS_TEST)
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.PHONY: test-mem
test-mem: $(TARGETS_MEM_TEST)
.PHONY: $(TARGETS_TEST)
$(TARGETS_TEST): test-%: %
./$^
.PHONY: $(TARGETS_MEM_TEST)
$(TARGETS_MEM_TEST): test-mem-%: %
valgrind --tool=memcheck --error-exitcode=1 --track-origins=yes --leak-check=full ./$^
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test-mem: build-test
@ $(foreach bin,$(BINS_TEST),valgrind --tool=memcheck --error-exitcode=1 \
--track-origins=yes --leak-check=full ./$(bin);)
.PHONY: build-test
build-test: $(BINS_TEST)
# For simplicity, we link every object file to each of the test files. This
# might be changed later if this starts to become too slow.
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$(BINS_TEST): %: %.c.o $(LIB)
$(CC) \
$^ -o $@
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# Along with the include directory, each test includes $(TEST_DIR) (which
# contains the acutest.h header file), and the src directory of the module it's
# testing. This allows tests to access internal methods, which aren't publicly
# exposed.
$(BUILD_DIR)/$(TEST_DIR)/%.c.o: $(TEST_DIR)/%.c
mkdir -p $(dir $@)
$(CC) $(VIETERCFLAGS) -I$(TEST_DIR) \
-I$(dir $(@:$(BUILD_DIR)/$(TEST_DIR)/%=$(SRC_DIR)/%)) \
-c $< -o $@
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# =====MAINTENANCE=====
.PHONY: lint
lint:
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clang-format -n --Werror $(SRCS) $(SRCS_H)
.PHONY: fmt
fmt:
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clang-format -i $(SRCS) $(SRCS_H)
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.PHONY: clean
clean:
rm -rf $(BUILD_DIR)
# Make make aware of the .d files
-include $(DEPS)