BINARY  := lazyntfy
PREFIX  ?= $(HOME)/.local
BINDIR  ?= $(PREFIX)/bin
MANDIR  ?= $(PREFIX)/share/man/man1
DOCDIR  ?= $(PREFIX)/share/doc/$(BINARY)
DESTDIR ?=
VERSION ?= $(shell git describe --tags --always --dirty 2>/dev/null | sed 's/^v//' | grep . || echo 0.1.0)
TOPIC   ?= alerts
GO      ?= go
GOFLAGS ?= -trimpath

LDFLAGS := -X main.version=$(VERSION)

.PHONY: all build install uninstall man test vet fmt run deb arch clean

all: build

build:
	$(GO) build $(GOFLAGS) -ldflags "$(LDFLAGS)" -o $(BINARY) ./cmd/lazyntfy

# System-wide install: sudo make install PREFIX=/usr/local
# Staged install:       make install DESTDIR=/tmp/pkg PREFIX=/usr
install: build
	install -Dm755 $(BINARY) "$(DESTDIR)$(BINDIR)/$(BINARY)"
	install -Dm644 man/lazyntfy.1 "$(DESTDIR)$(MANDIR)/lazyntfy.1"
	install -Dm644 LICENSE "$(DESTDIR)$(DOCDIR)/copyright"
	install -Dm644 README.md "$(DESTDIR)$(DOCDIR)/README.md"

uninstall:
	rm -f "$(DESTDIR)$(BINDIR)/$(BINARY)" "$(DESTDIR)$(MANDIR)/lazyntfy.1"
	rm -rf "$(DESTDIR)$(DOCDIR)"

man:
	install -Dm644 man/lazyntfy.1 "$(DESTDIR)$(MANDIR)/lazyntfy.1"

test:
	$(GO) test ./...

vet:
	$(GO) vet ./...

fmt:
	gofmt -w .

run: build
	./$(BINARY) $(TOPIC)

# Build a Debian/Ubuntu package. -d skips build-dependency checks so the
# package can also be built on a machine without golang-go installed as a
# distro package.
deb:
	dpkg-buildpackage -us -uc -b -d
	mkdir -p dist
	mv -f ../$(BINARY)_*_*.deb ../$(BINARY)_*_*.changes ../$(BINARY)_*_*.buildinfo dist/ 2>/dev/null || true
	@echo "  packages written to dist/"

arch:
	cd packaging/archlinux && makepkg -f

clean:
	rm -f $(BINARY)
	rm -rf dist
	-$(MAKE) -f debian/rules clean