func main()

in experiments/babel/main.go [60:124]
48 lines of code
5 McCabe index (conditional complexity)

func main() {
	// project setup
	// Get Google Cloud Project ID from environment variable
	projectID = envCheck("PROJECT_ID", "") // no default
	if projectID == "" {
		log.Fatalf("please set env var PROJECT_ID with google cloud project, e.g. export PROJECT_ID=$(gcloud config get project)")
	}
	// Get Google Cloud Region from environment variable
	location = envCheck("REGION", "us-central1") // default is us-central1

	// get all Chirp-HD voices
	var err error
	voices, err = listChirpHDVoices()
	if err != nil {
		log.Fatalf("cannot listChirpHDVoices: %v", err)
	}
	log.Printf("%d Chirp-HD voices", len(voices))

	// run as service, env var precedence
	service = envCheck("SERVICE", service)

	if service != "false" {
		port := os.Getenv("PORT")
		if port == "" {
			port = "8080"
		}
		babelbucket = envCheck("BABEL_BUCKET", fmt.Sprintf("%s-fabulae", projectID))
		babelpath = envCheck("BABEL_PATH", "babel")
		log.Printf("using gs://%s/%s", babelbucket, babelpath)
		http.HandleFunc("POST /babel", handleSynthesis)
		http.HandleFunc("GET /voices", handleListVoices)
		http.ListenAndServe(fmt.Sprintf(":%s", port), nil)
	}

	// statement ingestion
	statement := strings.Join(flag.Args(), " ")
	log.Printf("original statement: %s", statement)

	// get all languages
	languages := getAllLanguages()

	// translate to each language
	translateSpinner := progressbar.NewOptions(
		-1,
		progressbar.OptionSetDescription("translating statement ..."),
		progressbar.OptionSetWidth(15),
	)
	translateSpinner.Add(1)
	translations := translate(statement, languages)
	translateSpinner.Finish()
	fmt.Println()

	// tts and write to file
	audioGenerationSpinner := progressbar.NewOptions(
		-1,
		progressbar.OptionSetDescription("generating audio ..."),
		progressbar.OptionSetWidth(15),
	)
	audioGenerationSpinner.Add(1)
	outputfiles := generateSpeech(voices, translations)
	audioGenerationSpinner.Finish()
	fmt.Println()
	log.Printf("complete. wrote %d files", len(outputfiles))

}