Refactor

internal/config/config.go

@@ -0,0 +1,40 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"gopkg.in/yaml.v3"
+)
+
+type Config struct {
+	Directories []string `yaml:"directories"`
+}
+
+func getConfigPath() (string, error) {
+	home, err := os.UserHomeDir()
+	if err != nil {
+		return "", err
+	}
+	return filepath.Join(home, ".config", "git-repo-updater", "config.yaml"), nil
+}
+
+func Load() (Config, error) {
+	path, err := getConfigPath()
+	if err != nil {
+		return Config{}, err
+	}
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return Config{}, fmt.Errorf("read config: %w", err)
+	}
+	var cfg Config
+	if err := yaml.Unmarshal(data, &cfg); err != nil {
+		return Config{}, fmt.Errorf("parse config: %w", err)
+	}
+	if len(cfg.Directories) == 0 {
+		return Config{}, fmt.Errorf("no directories configured")
+	}
+	return cfg, nil
+}

main.go

@@ -2,45 +2,17 @@ package main
 
 import (
 	"fmt"
-	"os"
-	"path/filepath"
+	"log"
 
-	"gopkg.in/yaml.v3"
+	"git-repo-updater/internal/config"
 )
 
-type Config struct {
-	Directories []string `yaml:"directories"`
-}
-
-func getConfigPath() string {
-	home, err := os.UserHomeDir()
-
-	if err != nil {
-		panic(err)
-	}
-
-	return filepath.Join(home, ".config", "git-repo-updater", "config.yaml")
-}
-
 func main() {
-	configPath := getConfigPath()
-	data, err := os.ReadFile(configPath)
+	cfg, err := config.Load()
 
 	if err != nil {
-		panic(err)
+		log.Fatalf("Failed to load config: %v", err)
 	}
 
-	config := parseConfig(data)
-
-	fmt.Println("Directories:", config.Directories)
-}
-
-func parseConfig(data []byte) Config {
-	var config Config
-
-	if err := yaml.Unmarshal(data, &config); err != nil {
-		panic(err)
-	}
-
-	return config
+	fmt.Println("Directories:", cfg.Directories)
 }