added Makefile

Makefile

@@ -0,0 +1,12 @@
+TARGET = pdi
+BUILDDIR = build
+INSTALLDIR=/usr/local/bin
+
+$(BUILDDIR)/$(TARGET): main.go
+	[ -d $(BUILDDIR) ] || mkdir -p $(BUILDDIR)
+	go build -o $(BUILDDIR)/$(TARGET) .
+
+.PHONY: install
+
+install:
+	install -m 755 $(BUILDDIR)/$(TARGET) $(INSTALLDIR)/$(TARGET)