feat: set version flag (#632)

Former-commit-id: 9edbda3daa

backend/app/api/main.go

@@ -35,6 +35,15 @@ var (
 	buildTime = "now"
 )
 
+func build() string {
+	short := commit
+	if len(short) > 7 {
+		short = short[:7]
+	}
+
+	return fmt.Sprintf("%s, commit %s, built at %s", version, short, buildTime)
+}
+
 // @title                      Homebox API
 // @version                    1.0
 // @description                Track, Manage, and Organize your Things.
@@ -47,7 +56,7 @@ var (
 func main() {
 	zerolog.ErrorStackMarshaler = pkgerrors.MarshalStack
 
-	cfg, err := config.New()
+	cfg, err := config.New(build(), "Homebox inventory management system")
 	if err != nil {
 		panic(err)
 	}

backend/internal/sys/config/conf.go

@@ -15,6 +15,7 @@ const (
 )
 
 type Config struct {
+	conf.Version
 	Mode    string     `yaml:"mode" conf:"default:development"` // development or production
 	Web     WebConfig  `yaml:"web"`
 	Storage Storage    `yaml:"storage"`
@@ -46,10 +47,15 @@ type WebConfig struct {
 
 // New parses the CLI/Config file and returns a Config struct. If the file argument is an empty string, the
 // file is not read. If the file is not empty, the file is read and the Config struct is returned.
-func New() (*Config, error) {
+func New(buildstr string, description string) (*Config, error) {
 	var cfg Config
 	const prefix = "HBOX"
 
+	cfg.Version = conf.Version{
+		Build: buildstr,
+		Desc:  description,
+	}
+
 	help, err := conf.Parse(prefix, &cfg)
 	if err != nil {
 		if errors.Is(err, conf.ErrHelpWanted) {