initial prototype

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

syft/file/cataloger/executable/test-fixtures/golang/Makefile

@@ -0,0 +1,42 @@
+BIN=./bin
+TOOL_IMAGE=localhost/syft-golang-build-tools:latest
+FINGERPRINT_FILE=$(BIN).fingerprint
+
+ifndef BIN
+    $(error BIN is not set)
+endif
+
+.DEFAULT_GOAL := fixtures
+
+# requirement 1: 'fixtures' goal to generate any and all test fixtures
+fixtures: build
+
+# requirement 2: 'fingerprint' goal to determine if the fixture input that indicates any existing cache should be busted
+fingerprint: $(FINGERPRINT_FILE)
+
+tools-check:
+	@sha256sum -c Dockerfile.sha256 || (echo "Tools Dockerfile has changed" && exit 1)
+
+tools:
+	@(docker inspect $(TOOL_IMAGE) > /dev/null && make tools-check) || \
+		(docker build -t $(TOOL_IMAGE) . && sha256sum Dockerfile > Dockerfile.sha256)
+
+build: tools
+	@mkdir -p $(BIN)
+	docker run -i -v $(shell pwd)/$(BIN):/out $(TOOL_IMAGE) sh -c \
+		"cp /hello_linux /hello_mac /hello.exe /out/"
+
+debug:
+	docker run -it --rm -v $(shell pwd):/mount -w /mount $(TOOL_IMAGE) sh
+
+# requirement 3: we always need to recalculate the fingerprint based on source regardless of any existing fingerprint
+.PHONY: $(FINGERPRINT_FILE)
+$(FINGERPRINT_FILE):
+	@find . -maxdepth 1 -type f \( -name "*.go" -o -name "go.*" -o -name "Dockerfile" -o -name "Makefile" \) \
+		-exec sha256sum {} \; | sort -k2 > $(FINGERPRINT_FILE)
+
+# requirement 4: 'clean' goal to remove all generated test fixtures
+clean:
+	rm -rf $(BIN) Dockerfile.sha256 $(FINGERPRINT_FILE)
+
+.PHONY: tools tools-check build debug clean fixtures fingerprint