func loadConfig()

in cmd/root.go [547:597]
34 lines of code
10 McCabe index (conditional complexity)

func loadConfig(c *Command, args []string, opts []Option) error {
	v, err := initViper(c)
	if err != nil {
		return err
	}

	c.Flags().VisitAll(func(f *pflag.Flag) {
		// Override any unset flags with Viper values to use the pflags
		// object as a single source of truth.
		if !f.Changed && v.IsSet(f.Name) {
			val := v.Get(f.Name)
			_ = c.Flags().Set(f.Name, fmt.Sprintf("%v", val))
		}
	})

	// If args is not already populated, try to read from the environment.
	if len(args) == 0 {
		args = instanceFromEnv(args)
	}

	// If no environment args are present, try to read from the config file.
	if len(args) == 0 {
		args = instanceFromConfigFile(v)
	}

	for _, o := range opts {
		o(c)
	}

	// Handle logger separately from config
	if c.conf.StructuredLogs {
		c.logger, c.cleanup = log.NewStructuredLogger(c.conf.Quiet)
	}

	if c.conf.Quiet {
		c.logger = log.NewStdLogger(io.Discard, os.Stderr)
	}

	err = parseConfig(c, c.conf, args)
	if err != nil {
		return err
	}

	// The arguments are parsed. Usage is no longer needed.
	c.SilenceUsage = true

	// Errors will be handled by logging from here on.
	c.SilenceErrors = true

	return nil
}