build: Update Makefile to be module-centric

Signed-off-by: Paulo Gomes <pjbgf@linux.com>

Author: pjbgf

Makefile

@@ -1,23 +1,30 @@
-GOCMD = go
+GOCMD  = go
 GOTEST = $(GOCMD) test
 
 # renovate: datasource=github-tags depName=golangci/golangci-lint
 GOLANGCI_VERSION ?= v2.9.0
 
-TOOLS_BIN := $(shell mkdir -p build/tools && realpath build/tools)
-GOLANGCI = $(TOOLS_BIN)/golangci-lint-$(GOLANGCI_VERSION)
+ROOT      := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
+TOOLS_BIN := $(shell mkdir -p $(ROOT)build/tools && realpath $(ROOT)build/tools)
+GOLANGCI   = $(TOOLS_BIN)/golangci-lint-$(GOLANGCI_VERSION)
 $(GOLANGCI):
 	rm -f $(TOOLS_BIN)/golangci-lint*
 	curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/$(GOLANGCI_VERSION)/install.sh | sh -s -- -b $(TOOLS_BIN) $(GOLANGCI_VERSION)
 	mv $(TOOLS_BIN)/golangci-lint $(TOOLS_BIN)/golangci-lint-$(GOLANGCI_VERSION)
 
+MODULES := $(shell find $(ROOT) -mindepth 2 -name "go.mod" -exec dirname {} \; | sort)
+
 test:
-	$(GOTEST) -race ./...
+	@for dir in $(MODULES); do \
+		(cd $$dir && $(GOTEST) -race ./...) || exit 1; \
+	done
 
 validate: validate-lint validate-dirty
 
 validate-lint: $(GOLANGCI)
-	$(GOLANGCI) run
+	@for dir in $(MODULES); do \
+		(cd $$dir && $(GOLANGCI) run) || exit 1; \
+	done
 
 validate-dirty:
 ifneq ($(shell git status --porcelain --untracked-files=no),)