//go:build mage package main import ( "encoding/json" "fmt" "os" "path/filepath" ) const ( configDir string = "./config/" configFileName string = "config.json" ) type config struct { Directories []string `json:"directories"` } func newConfig() (config, error) { var cfg config path := filepath.Join(configDir, configFileName) file, err := os.Open(path) if err != nil { return cfg, fmt.Errorf("unable to open the file: %w", err) } defer file.Close() if err = json.NewDecoder(file).Decode(&cfg); err != nil { return cfg, fmt.Errorf("unable to decode the JSON file: %w", err) } return cfg, nil }