@redocly/cli/lib/utils/spinner.js

[@Redocly](https://redocly.com) CLI is your all-in-one OpenAPI utility. It builds, manages, improves, and quality-checks your OpenAPI descriptions, all of which comes in handy for various phases of the API Lifecycle. Create your own rulesets to make API g

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Spinner = void 0;
const process = require("process");
const SPINNER_FRAMES = ['⠋', '⠙', '⠹', '⠸', '⠼', '⠴', '⠦', '⠧', '⠇', '⠏'];
class Spinner {
    constructor() {
        this.frames = SPINNER_FRAMES;
        this.currentFrame = 0;
        this.intervalId = null;
        this.message = '';
    }
    showFrame() {
        process.stdout.write('\r' + this.frames[this.currentFrame] + ' ' + this.message);
        this.currentFrame = (this.currentFrame + 1) % this.frames.length;
    }
    start(message) {
        if (this.message === message) {
            return;
        }
        this.message = message;
        // If we're not in a TTY, don't display the spinner.
        if (!process.stdout.isTTY) {
            process.stdout.write(`${message}...\n`);
            return;
        }
        if (this.intervalId === null) {
            this.intervalId = setInterval(() => {
                this.showFrame();
            }, 100);
        }
    }
    stop() {
        if (this.intervalId !== null) {
            clearInterval(this.intervalId);
            this.intervalId = null;
            process.stdout.write('\r');
        }
        this.message = '';
    }
}
exports.Spinner = Spinner;