GOCMD := go
BINARY := gnums
PREFIX := /usr/local
EXEC_PREFIX := ${PREFIX}
BINDIR := ${EXEC_PREFIX}/bin
DATAROOTDIR := ${PREFIX}/share
MANDIR := ${DATAROOTDIR}/man
MAN1DIR := ${MANDIR}/man1

UPX := $(shell upx -V 2> /dev/null)


.PHONY: build
build:
	${GOCMD} build -ldflags "-w -s" -o ${BINARY}

.PHONY: compress
compress: ${BINARY}
ifdef UPX
	@echo Compressing the binary with UPX
	@upx ${BINARY}
else
	@echo Skipping upx compression
endif

.PHONY: install-bin
install-bin: build compress
	install -d ${DESTDIR}${BINDIR}
	install -m 0755 ./${BINARY} ${DESTDIR}${BINDIR}

.PHONY: install
install: install-bin install-desktop clean

.PHONY: clean
	${GOCMD} clean

.PHONY: uninstall
uninstall: clean
	rm -f ${DESTDIR}${BINDIR}/${BINARY}
	rm -f ${DESTDIR}${DATAROOTDIR}/applications/${BINARY}
	rm -f ${DESTDIR}${DATAROOTDIR}/pixmaps/${BINARY}-icon.png
	-update-desktop-database 2> /dev/null

.PHONY: install-desktop
install-desktop: ${BINARY}-icon.png
ifeq ($(shell uname), Linux)
	install -d ${DESTDIR}${DATAROOTDIR}/applications
	install -m 0644 ./${BINARY}.desktop ${DESTDIR}${DATAROOTDIR}/applications
	install -d ${DESTDIR}${DATAROOTDIR}/pixmaps
	install -m 0644 ./${BINARY}-icon.png ${DESTDIR}${DATAROOTDIR}/pixmaps
	-update-desktop-database 2> /dev/null
endif