Add Makefile

.gitignore

@@ -2,4 +2,6 @@
 goodhosts
 goodhosts.exe
 .idea
-dist
+dist
+out
+release

Makefile

@@ -0,0 +1,47 @@
+# Go and compilation related variables
+BUILD_DIR ?= out
+
+BINARY_NAME := goodhosts
+RELEASE_DIR ?= release
+
+# Add default target
+.PHONY: all
+all: build
+
+vendor:
+	go mod vendor
+
+$(BUILD_DIR):
+	mkdir -p $(BUILD_DIR)
+
+.PHONY: clean
+clean:
+	rm -rf $(BUILD_DIR)
+	rm -rf vendor
+	rm -fr release
+
+$(BUILD_DIR)/macos-amd64/$(BINARY_NAME):
+	GOARCH=amd64 GOOS=darwin go build -o $(BUILD_DIR)/macos-amd64/$(BINARY_NAME) ./main.go
+
+$(BUILD_DIR)/linux-amd64/$(BINARY_NAME):
+	GOOS=linux GOARCH=amd64 go build -o $(BUILD_DIR)/linux-amd64/$(BINARY_NAME) ./main.go
+
+$(BUILD_DIR)/windows-amd64/$(BINARY_NAME).exe:
+	GOARCH=amd64 GOOS=windows go build -o $(BUILD_DIR)/windows-amd64/$(BINARY_NAME).exe ./main.go
+
+.PHONY: cross ## Cross compiles all binaries
+cross: $(BUILD_DIR)/macos-amd64/$(BINARY_NAME) $(BUILD_DIR)/linux-amd64/$(BINARY_NAME) $(BUILD_DIR)/windows-amd64/$(BINARY_NAME).exe
+
+.PHONY: release
+release: clean cross
+	mkdir $(RELEASE_DIR)
+	tar cJSf $(RELEASE_DIR)/goodhosts-cli-macos-amd64.tar.xz -C $(BUILD_DIR)/macos-amd64 $(BINARY_NAME)
+	tar cJSf $(RELEASE_DIR)/goodhosts-cli-linux-amd64.tar.xz -C $(BUILD_DIR)/linux-amd64 $(BINARY_NAME)
+	tar cJSf $(RELEASE_DIR)/goodhosts-cli-windows-amd64.tar.xz -C $(BUILD_DIR)/windows-amd64 $(BINARY_NAME).exe
+
+	pushd $(RELEASE_DIR) && sha256sum * > sha256sum.txt && popd
+
+.PHONY: build
+build:
+	go build -o $(BINARY_NAME) ./main.go
+