# GNUMake snippet for java compilation and execution
#
# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2024-2025 Jonas Smedegaard <dr@jones.dk>

STEMS = $(PROJECT) $(PROJECT_FLAVORS:%=$(PROJECT)%) $(EXTRASTEMS)
CLASSES = $(STEMS:=.class)

# account for one annoyingly popular class of non-POSIX system
PATH_SEPARATOR := $(if $(filter Windows%,$($(shell uname))),;,:)

CLASSPATH_FLAGS = --class-path $(subst $() ,$(PATH_SEPARATOR),$(CLASSPATHS))

# defaults overridable at make invocation
JAVAC ?= javac
JAVA ?= java
JAVACFLAGS ?= $(CLASSPATH_FLAGS) -g -Xlint -Xdoclint
JAVAFLAGS ?= $(CLASSPATH_FLAGS)

all:: run-$(PROJECT)

clean::
	rm -f $(CLASSES)

$(STEMS:%=check-%): check-%:
	checkstyle -c ./_checkstyle/checks.xml $*.java

$(STEMS:%=run-%): run-%: %.class
	$(or $(RUNTIME_ENV_$*),$(RUNTIME_ENV)) $(JAVA) $(JAVAFLAGS) $* $(or $(RUNTIME_ARGS_$*),$(RUNTIME_ARGS))

%.class: %.java
	$(JAVAC) $(JAVACFLAGS) $<

.PHONY: all clean $(STEMS:%=run-%)