package serv import ( "fmt" "os" "path" "path/filepath" "strings" "github.com/spf13/viper" ) // ReadInConfig function reads in the config file for the environment specified in the GO_ENV // environment variable. This is the best way to create a new Super Graph config. func ReadInConfig(configFile string) (*Config, error) { cpath := path.Dir(configFile) cfile := path.Base(configFile) vi := newViper(cpath, cfile) if err := vi.ReadInConfig(); err != nil { return nil, err } inherits := vi.GetString("inherits") if inherits != "" { vi = newViper(cpath, inherits) if err := vi.ReadInConfig(); err != nil { return nil, err } if vi.IsSet("inherits") { return nil, fmt.Errorf("inherited config (%s) cannot itself inherit (%s)", inherits, vi.GetString("inherits")) } vi.SetConfigName(cfile) if err := vi.MergeInConfig(); err != nil { return nil, err } } c := &Config{cpath: cpath, vi: vi} if err := vi.Unmarshal(&c); err != nil { return nil, fmt.Errorf("failed to decode config, %v", err) } return c, nil } func newViper(configPath, configFile string) *viper.Viper { vi := viper.New() vi.SetEnvPrefix("SG") vi.SetEnvKeyReplacer(strings.NewReplacer(".", "_")) vi.AutomaticEnv() vi.AddConfigPath(configPath) vi.SetConfigName(configFile) vi.AddConfigPath("./config") vi.SetDefault("host_port", "0.0.0.0:8080") vi.SetDefault("web_ui", false) vi.SetDefault("enable_tracing", false) vi.SetDefault("auth_fail_block", "always") vi.SetDefault("seed_file", "seed.js") vi.SetDefault("database.type", "postgres") vi.SetDefault("database.host", "localhost") vi.SetDefault("database.port", 5432) vi.SetDefault("database.user", "postgres") vi.SetDefault("database.schema", "public") vi.SetDefault("env", "development") vi.BindEnv("env", "GO_ENV") //nolint: errcheck vi.BindEnv("host", "HOST") //nolint: errcheck vi.BindEnv("port", "PORT") //nolint: errcheck vi.SetDefault("auth.rails.max_idle", 80) vi.SetDefault("auth.rails.max_active", 12000) return vi } func GetConfigName() string { if len(os.Getenv("GO_ENV")) == 0 { return "dev" } ge := strings.ToLower(os.Getenv("GO_ENV")) switch { case strings.HasPrefix(ge, "pro"): return "prod" case strings.HasPrefix(ge, "sta"): return "stage" case strings.HasPrefix(ge, "tes"): return "test" case strings.HasPrefix(ge, "dev"): return "dev" } return ge } func (c *Config) telemetryEnabled() bool { return c.Telemetry.Debug || c.Telemetry.Metrics.Exporter != "" || c.Telemetry.Tracing.Exporter != "" } func (c *Config) relPath(p string) string { if filepath.IsAbs(p) { return p } return path.Join(c.cpath, p) }