fix: report actual version instead of hardcoded 3.0.0-dev (#63)

The / endpoint was hardcoded to return 3.0.0-dev. Now uses the git tag version set via ldflags at build time.

Reviewed-on: #63
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>

.woodpecker/docker.yaml

@@ -8,6 +8,8 @@ steps:
     settings:
       registry: git.unkin.net
       repo: git.unkin.net/unkin/artifactapi
+      build_args:
+        VERSION: ${CI_COMMIT_TAG}
       username: droneci
       password:
         from_secret: DRONECI_PASSWORD

Dockerfile

@@ -9,7 +9,8 @@ RUN go mod download
 
 COPY . .
 
-RUN CGO_ENABLED=0 go build -ldflags="-s -w" -o artifactapi ./cmd/artifactapi
+ARG VERSION=dev
+RUN CGO_ENABLED=0 go build -ldflags="-s -w -X main.version=${VERSION}" -o artifactapi ./cmd/artifactapi
 
 FROM gcr.io/distroless/static-debian12:nonroot
 

Makefile

@@ -12,7 +12,7 @@ check-go:
 	fi
 
 build: check-go tidy
-	go build -ldflags="-s -w" -o $(BINARY) ./cmd/artifactapi
+	go build -ldflags="-s -w -X main.version=$(VERSION)" -o $(BINARY) ./cmd/artifactapi
 
 test: check-go
 	go test -race -count=1 ./pkg/... ./internal/...

cmd/artifactapi/main.go

@@ -13,6 +13,8 @@ import (
 	"git.unkin.net/unkin/artifactapi/internal/tui"
 )
 
+var version = "dev"
+
 func main() {
 	if len(os.Args) > 1 && os.Args[1] == "tui" {
 		endpoint := os.Getenv("ARTIFACTAPI_ENDPOINT")
@@ -42,7 +44,7 @@ func main() {
 	ctx, cancel := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
 	defer cancel()
 
-	srv, err := server.New(cfg)
+	srv, err := server.New(cfg, version)
 	if err != nil {
 		slog.Error("failed to create server", "error", err)
 		os.Exit(1)

internal/server/server.go

@@ -35,6 +35,7 @@ import (
 
 type Server struct {
 	cfg          *config.Config
+	version      string
 	router       chi.Router
 	db           *database.DB
 	cache        *cache.Redis
@@ -45,7 +46,7 @@ type Server struct {
 	gc           *gc.Collector
 }
 
-func New(cfg *config.Config) (*Server, error) {
+func New(cfg *config.Config, version string) (*Server, error) {
 	db, err := database.New(cfg.DatabaseDSN())
 	if err != nil {
 		return nil, fmt.Errorf("database: %w", err)
@@ -68,6 +69,7 @@ func New(cfg *config.Config) (*Server, error) {
 
 	s := &Server{
 		cfg:          cfg,
+		version:      version,
 		db:           db,
 		cache:        redis,
 		store:        s3,
@@ -138,7 +140,7 @@ func (s *Server) handleHealth(w http.ResponseWriter, r *http.Request) {
 func (s *Server) handleRoot(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Content-Type", "application/json")
 	w.WriteHeader(http.StatusOK)
-	fmt.Fprint(w, `{"name":"artifactapi","version":"3.0.0-dev"}`)
+	fmt.Fprintf(w, `{"name":"artifactapi","version":"%s"}`, s.version)
 }
 
 func (s *Server) newHTTPServer() *http.Server {