GOCMD := go
BINARY := slope
PREFIX := /usr/local
EXEC_PREFIX := ${PREFIX}
BINDIR := ${EXEC_PREFIX}/bin
DATAROOTDIR := ${PREFIX}/share
MANDIR := ${DATAROOTDIR}/man
MAN1DIR := ${MANDIR}/man1
VERSION := $(shell git rev-list HEAD --count)
VERSION_HASH := $(shell git rev-list -1 HEAD)

.PHONY: build
build:
	${GOCMD} build -ldflags "-w -s -X main.VersionHash=${VERSION_HASH}" -o ${BINARY}

.PHONY: install
install: install-bin install-man clean

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

.PHONY: install-man
install-man: ${BINARY}.1
	gzip -k ./${BINARY}.1
	install -d ${DESTDIR}${MAN1DIR}
	install -m 0644 ./${BINARY}.1.gz ${DESTDIR}${MAN1DIR}

.PHONY: clean
clean: 
	${GOCMD} clean
	rm -f ./${BINARY}.1.gz 2> /dev/null
	rm -f ./${BINARY}_* 2> /dev/null