Messaging service, adapters, refactoring

Makefile

@@ -0,0 +1,21 @@
+BIN_PATH:=./bin
+CMD_PATH:=./cmd/server/main.go
+
+LAST_COMMIT:=$(shell git rev-list --abbrev-commit --all --max-count=1)
+TAG:=$(shell git describe --abbrev=0 --tags ${LAST_COMMIT} 2>/dev/null || true)
+VERSION:=$(or $(TAG:v%=%),0.0.0)-$(LAST_COMMIT)
+
+LDFLAGS=-extldflags=-static -w -s -w -s -X main.version=${VERSION}
+
+.PHONY: build test lint
+all: lint test build
+
+build:
+	CGO_ENABLED=0 go build -ldflags='${LDFLAGS}' -o ${BIN_PATH}/service ./cmd/server/main.go
+
+test:
+	go test -v -race ./...
+
+lint:
+	@which golangci-lint || go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest
+	golangci-lint run -j4 ./...