Makefile for java

Makefile

JFLAGS = -g
JC = javac
JVM = java

TARGET_DIR = bin
LIB_DIR = lib
TEST_JAR = $(LIB_DIR)/junit-platform-console-standalone-1.4.2.jar
DEPENDENCIES =
MAIN_DIR = src/main/java
TEST_DIR = src/test/java

TESTS = $(shell find $(TEST_DIR) -type f -name '*Test.java')
TEST_CLASSES = $(patsubst $(TEST_DIR)/%.java, $(TARGET_DIR)/%.class, $(TESTS))

MAIN_CLASS = com.foo.project.Main
MAIN_CLASS_FILE = $(TARGET_DIR)/$(subst .,/,$(MAIN_CLASS)).class

.SUFFIXES: .java .class

.PHONY: run test

.DEFAULT: run

# classes
$(TARGET_DIR)/%.class: $(MAIN_DIR)/%.java
	$(JC) $(JFLAGS) -d $(TARGET_DIR) -cp $(TARGET_DIR):$(DEPENDENCIES) $<

# tests
$(TARGET_DIR)/%Test.class: $(TEST_DIR)/%Test.java $(TARGET_DIR)/%.class
	$(JC) $(JFLAGS) -d $(TARGET_DIR) -cp $(TARGET_DIR):$(TEST_JAR):$(DEPENDENCIES) $<

# run all tests
test: $(TEST_CLASSES)
	$(JVM) -jar $(TEST_JAR) -cp $(TARGET_DIR):$(DEPENDENCIES) --scan-class-path

# run main class
run: $(MAIN_CLASS_FILE)
	$(JVM) -cp $(TARGET_DIR):$(DEPENDENCIES) $(MAIN_CLASS)