Merge pull request #88 from r2d4/calculate-checksums

Add rule to calculate checksums of binaries

Author: r2d4

Makefile

@@ -27,7 +27,7 @@ PROJECT := container-diff
 REPOPATH ?= $(ORG)/$(PROJECT)
 RELEASE_BUCKET ?= $(PROJECT)
 
-SUPPORTED_PLATFORMS := linux-amd64 darwin-amd64 windows-amd64.exe
+SUPPORTED_PLATFORMS := linux-$(GOARCH) darwin-$(GOARCH) windows-$(GOARCH).exe
 BUILD_PACKAGE = $(REPOPATH)
 
 # These build tags are from the containers/image library.
@@ -42,7 +42,10 @@ $(BUILD_DIR)/$(PROJECT): $(BUILD_DIR)/$(PROJECT)-$(GOOS)-$(GOARCH)
 	cp $(BUILD_DIR)/$(PROJECT)-$(GOOS)-$(GOARCH) $@
 
 $(BUILD_DIR)/$(PROJECT)-%-$(GOARCH): $(GO_FILES) $(BUILD_DIR)
-	GOOS=$* GOARCH=$(GOARCH) go build -tags $(GO_BUILD_TAGS) -ldflags $(GO_LDFLAGS) -o $@ $(BUILD_PACKAGE)
+	GOOS=$* GOARCH=$(GOARCH) CGO_ENABLED=0 go build -tags $(GO_BUILD_TAGS) -ldflags $(GO_LDFLAGS) -o $@ $(BUILD_PACKAGE)
+
+%.sha256: %
+	shasum -a 256 $< &> $@
 
 %.exe: %
 	mv $< $@
@@ -51,7 +54,7 @@ $(BUILD_DIR):
 	mkdir -p $(BUILD_DIR)
 
 .PHONY: cross
-cross: $(foreach platform, $(SUPPORTED_PLATFORMS), $(BUILD_DIR)/$(PROJECT)-$(platform))
+cross: $(foreach platform, $(SUPPORTED_PLATFORMS), $(BUILD_DIR)/$(PROJECT)-$(platform).sha256)
 
 .PHONY: test
 test: $(BUILD_DIR)/$(PROJECT)