makefile: add

Makefile

@@ -0,0 +1,54 @@
+.POSIX:
+.SUFFIXES:
+
+PREFIX?=/usr/local
+BINDIR?=$(PREFIX)/sbin
+SHAREDIR?=$(PREFIX)/share
+GO?=go
+GOFLAGS?=
+LDFLAGS+=-s -w
+RM?=rm -f
+GOTEST=go test -count=1 -race
+
+GOSRC!=find * -name '*.go'
+GOSRC+=go.mod go.sum
+
+all: postmarketos-mkinitfs
+
+postmarketos-mkinitfs: $(GOSRC)
+	$(GO) build $(GOFLAGS) -ldflags "$(LDFLAGS)" -o postmarketos-mkinitfs
+
+.PHONY: fmt
+fmt:
+	gofmt -w .
+
+test:
+	@if [ `gofmt -l . | wc -l` -ne 0 ]; then \
+		gofmt -d .; \
+		echo "ERROR: source files need reformatting with gofmt"; \
+		exit 1; \
+	fi
+	@staticcheck ./...
+
+	@$(GOTEST) ./...
+
+clean:
+	$(RM) postmarketos-mkinitfs 
+
+install: $(DOCS) postmarketos-mkinitfs
+	install -Dm755 postmarketos-mkinitfs -t $(DESTDIR)$(BINDIR)/
+	ln -sf postmarketos-mkinitfs $(DESTDIR)$(BINDIR)/mkinitfs
+
+.PHONY: checkinstall
+checkinstall:
+	test -e $(DESTDIR)$(BINDIR)/postmarketos-mkinitfs
+	test -L $(DESTDIR)$(BINDIR)/mkinitfs
+
+RMDIR_IF_EMPTY:=sh -c '! [ -d $$0 ] || ls -1qA $$0 | grep -q . || rmdir $$0'
+
+uninstall:
+	$(RM) $(DESTDIR)$(BINDIR)/postmarketos-mkinitfs
+	$(RM) $(DESTDIR)$(BINDIR)/mkinitfs
+	${RMDIR_IF_EMPTY} $(DESTDIR)$(BINDIR)
+
+.PHONY: all clean install uninstall test