func appMain()

in main.go [40:88]
39 lines of code
10 McCabe index (conditional complexity)

func appMain() error {
	if err := validateargs.NotAllowed(os.Args[1:]); err != nil {
		return fmt.Errorf("using invalid arguments, use -config=gitlab-pages-config file instead: %w", err)
	}

	if err := validateargs.Deprecated(os.Args[1:]); err != nil {
		log.WithError(err).Warn("Using deprecated arguments")
	}

	config, err := cfg.LoadConfig()
	if err != nil {
		return fmt.Errorf("failed to load config: %w", err)
	}

	printVersion(config.General.ShowVersion, VERSION)

	if err := cfg.Validate(config); err != nil {
		return fmt.Errorf("invalid config settings: %w", err)
	}

	if config.Sentry.DSN != "" {
		err := initErrorReporting(config.Sentry.DSN, config.Sentry.Environment)
		if err != nil {
			log.WithError(err).Warn("Failed to initialize errortracking")
		}
	}

	err = logging.ConfigureLogging(config.Log.Format, config.Log.Verbose)
	if err != nil {
		return fmt.Errorf("failed to initialize logging: %w", err)
	}

	cfg.LogConfig(config)

	log.WithFields(log.Fields{
		"version":  VERSION,
		"revision": REVISION,
	}).Info("GitLab Pages")
	log.Info("URL: https://gitlab.com/gitlab-org/gitlab-pages")

	if config.GitLab.EnableDisk {
		if err := os.Chdir(config.General.RootDir); err != nil {
			return fmt.Errorf("could not change directory into pagesRoot: %w", err)
		}
	}
	fips.Check()

	return runApp(config)
}