Makefile

#        _
#       (_)____ _ _   __ ____ _
#      / // __ `/| | / // __ `/
#     / // /_/ / | |/ // /_/ /
#  __/ / \__,_/  |___/ \__,_/
# /___/
#                       __          ____ _  __
#    ____ ___   ____ _ / /__ ___   / __/(_)/ /___
#   / __ `__ \ / __ `// //_// _ \ / /_ / // // _ \
#  / / / / / // /_/ // ,<  /  __// __// // //  __/
# /_/ /_/ /_/ \__,_//_/|_| \___//_/  /_//_/ \___/
# 																by Guy Hughes

MK_CLASSPATH := ./out
MK_SOURCEPATH := src
MK_JAVADOCPATH := ./doc
COMPILER := javac
COMPILE_OPTIONS := -d $(MK_CLASSPATH) -classpath $(MK_CLASSPATH)
DEBUG_OPTIONS := -Xlint:unchecked
RUN := com.guyhughes.Tester

# http://stackoverflow.com/a/12959764/3337659
rwildcard=$(wildcard $1$2) $(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2))

sourcefiles = $(call rwildcard,$(MK_SOURCEPATH),*.java)
classfiles = $(patsubst %.java,$(MK_CLASSPATH)/%.class,$(sourcefiles))
runtargets = $(subst /,.,$(patsubst $(MK_SOURCEPATH)/%,%,$(patsubst $(MK_CLASSPATH)/%,%,$(classfiles:.class=))))
.PHONY: total all clean doc debug targets default

default: total

total: clean all $(RUN)

all:
	@mkdir -p $(MK_CLASSPATH)
	$(COMPILER) $(COMPILE_OPTIONS) $(sourcefiles)

debug:
	@mkdir -p $(MK_CLASSPATH)
	$(COMPILER) $(COMPILE_OPTIONS) $(DEBUG_OPTIONS) $(sourcefiles)

doc:
	@mkdir -p $(MK_JAVADOCPATH)
	javadoc $(sourcefiles) -d $(MK_JAVADOCPATH)
	xdg-open $(MK_JAVADOCPATH)/index.html

$(runtargets): all
	java -classpath $(MK_CLASSPATH) $@

targets:
	@echo $(runtargets)

clean:
	rm -rf $(MK_JAVADOCPATH)
	rm -f $(classfiles)