func main()

in cmd/gitlab-shell/main.go [31:83]
41 lines of code
6 McCabe index (conditional complexity)

func main() {
	command.CheckForVersionFlag(os.Args, Version, BuildTime)

	readWriter := &readwriter.ReadWriter{
		Out:    &readwriter.CountingWriter{W: os.Stdout},
		In:     os.Stdin,
		ErrOut: os.Stderr,
	}

	executable, err := executable.New(executable.GitlabShell)
	if err != nil {
		fmt.Fprintln(readWriter.ErrOut, "Failed to determine executable, exiting")
		os.Exit(1)
	}

	config, err := config.NewFromDirExternal(executable.RootDir)
	if err != nil {
		fmt.Fprintln(readWriter.ErrOut, "Failed to read config, exiting:", err)
		os.Exit(1)
	}

	logCloser := logger.Configure(config)
	defer logCloser.Close()

	env := sshenv.NewFromEnv()
	cmd, err := shellCmd.New(os.Args[1:], env, config, readWriter)
	if err != nil {
		// For now this could happen if `SSH_CONNECTION` is not set on
		// the environment
		fmt.Fprintf(readWriter.ErrOut, "%v\n", err)
		os.Exit(1)
	}

	ctx, finished := command.Setup(executable.Name, config)
	defer finished()

	config.GitalyClient.InitSidechannelRegistry(ctx)

	cmdName := reflect.TypeOf(cmd).String()
	ctxlog := log.ContextLogger(ctx)
	ctxlog.WithFields(log.Fields{"env": env, "command": cmdName}).Info("gitlab-shell: main: executing command")
	fips.Check()

	if _, err := cmd.Execute(ctx); err != nil {
		ctxlog.WithError(err).Warn("gitlab-shell: main: command execution failed")
		if grpcstatus.Convert(err).Code() != grpccodes.Internal {
			console.DisplayWarningMessage(err.Error(), readWriter.ErrOut)
		}
		os.Exit(1)
	}

	ctxlog.Info("gitlab-shell: main: command executed successfully")
}