read config from file

config.go

@@ -7,19 +7,19 @@ import (
 )
 
 type Config struct {
-	MirrorRoot string
+	CacheRoot string     `toml:"cache_root"`
-	MirrorURL  string
+	MirrorURL string     `toml:"mirror_url"`
-	Port       string
+	Port      string     `toml:"port"`
-	Auth       AuthConfig
+	Auth      AuthConfig `toml:"auth"`
 }
 
 type AuthConfig struct {
-	Token string
+	Token string `toml:"token"`
 }
 
 func NewConfig() *Config {
 	return &Config{
-		MirrorRoot: "/home/ewpt3ch/dev/pacman-cache-server/tmprepo",
+		CacheRoot: "/home/ewpt3ch/dev/pacman-cache-server/tmprepo",
 		MirrorURL: "https://us.mirrors.cicku.me/archlinux/",
 		Port:      "8090",
 		Auth:      AuthConfig{Token: "FakeToken"},
@@ -31,7 +31,7 @@ func ReadConfig(path string) (*Config, error) {
 	var cfg Config
 	_, err := toml.DecodeFile(path, &cfg)
 	if err != nil {
-		return nil, fmt.Errorf("Error loading config from %s: %w", path, err)
+		return nil, fmt.Errorf("error loading config from %s: %w", path, err)
 	}
 
 	if err = cfg.validate(); err != nil {
@@ -42,7 +42,7 @@ func ReadConfig(path string) (*Config, error) {
 }
 
 func (c *Config) validate() error {
-	if c.MirrorRoot == "" {
+	if c.CacheRoot == "" {
 		return fmt.Errorf("cache root is required")
 	}
 	if c.MirrorURL == "" {
@@ -51,5 +51,8 @@ func (c *Config) validate() error {
 	if c.Port == "" {
 		c.Port = "8090"
 	}
+	if c.Auth.Token == "" {
+		return fmt.Errorf("auth token is required")
+	}
 	return nil
 }

handlerPkgs.go

@@ -16,7 +16,7 @@ func (s *Server) handlePackage(w http.ResponseWriter, req *http.Request) {
 	arch := req.PathValue("arch")
 	file := req.PathValue("file")
 	repoPath := filepath.Join(repo, "os", arch, file)   //path from mirror root to pkg or db file
-	pkgPath := filepath.Join(s.cfg.MirrorRoot, repoPath) //absolute path for local read of the file
+	pkgPath := filepath.Join(s.cfg.CacheRoot, repoPath) //absolute path for local read of the file
 
 	if _, err := os.Stat(pkgPath); err != nil {
 		err = s.c.Fetch(repoPath)

main.go

@@ -17,7 +17,7 @@ func main() {
 	if err != nil {
 		log.Fatal(err)
 	}
-	c := cache.NewCache(cfg.MirrorRoot, cfg.MirrorURL)
+	c := cache.NewCache(cfg.CacheRoot, cfg.MirrorURL)
 	srv := &Server{cfg: cfg, c: c}
 
 	mux := http.NewServeMux()