1  # GNUMake snippet for java compilation and execution
 2  #
 3  # SPDX-License-Identifier: GPL-3.0-or-later
 4  # SPDX-FileCopyrightText: 2024 Jonas Smedegaard <dr@jones.dk>
 5  
 6  STEMS = $(PROJECT) $(foreach f,$(PROJECT_FLAVORS),$(PROJECT)$f) $(EXTRASTEMS)
 7  CLASSES = $(foreach s,$(STEMS),$(addsuffix .class,$s))
 8  
 9  # account for one annoyingly popular class of non-POSIX system
10  PATH_SEPARATOR := $(if $(filter Windows%,$($(shell uname))),;,:)
11  
12  CLASSPATH_FLAGS = --class-path $(subst $() ,$(PATH_SEPARATOR),$(CLASSPATHS))
13  
14  # defaults overridable at make invocation
15  JAVAC ?= javac
16  JAVA ?= java
17  JAVACFLAGS ?= $(CLASSPATH_FLAGS) -g -Xlint -Xdoclint
18  JAVAFLAGS ?= $(CLASSPATH_FLAGS)
19  
20  all:: run-$(PROJECT)
21  
22  clean::
23  	rm -f $(CLASSES)
24  
25  $(STEMS:%=check-%): check-%:
26  	checkstyle -c ./_checkstyle/checks.xml $*.java
27  
28  $(STEMS:%=run-%): run-%: %.class
29  	$(or $(RUNTIME_ENV_$*),$(RUNTIME_ENV)) $(JAVA) $(JAVAFLAGS) $* $(or $(RUNTIME_ARGS_$*),$(RUNTIME_ARGS))
30  
31  %.class: %.java
32  	$(JAVAC) $(JAVACFLAGS) $<
33  
34  .PHONY: all clean $(STEMS:%=run-%)