Method start

lib/single-bar.js:62–93

(total, startValue, payload)

    // start the progress bar
    start(total, startValue, payload){
        // progress updates are only visible in TTY mode!
        if (this.options.noTTYOutput === false && this.terminal.isTTY() === false){
            return;
        }

        // add handler to restore cursor settings (stop the bar) on SIGINT/SIGTERM ?
        if (this.sigintCallback === null && this.options.gracefulExit){
            this.sigintCallback = this.stop.bind(this);
            process.once('SIGINT', this.sigintCallback);
            process.once('SIGTERM', this.sigintCallback);
        }

        // save current cursor settings
        this.terminal.cursorSave();

        // hide the cursor ?
        if (this.options.hideCursor === true){
            this.terminal.cursor(false);
        }

        // disable line wrapping ?
        if (this.options.linewrap === false){
            this.terminal.lineWrapping(false);
        }

        // initialize bar
        super.start(total, startValue, payload);

        // redraw on start!
        this.render();
    }

    // stop the bar
    stop(){