Method render

lib/generic-bar.js:53–101

(forceRendering=false)

    // internal render function
    render(forceRendering=false){

        // formatter params
        const params = {
            progress: this.getProgress(),
            eta: this.eta.getTime(),
            startTime: this.startTime,
            stopTime: this.stopTime,
            total: this.total,
            value: this.value,
            maxWidth: this.terminal.getWidth()
        };

        // automatic eta update ? (long running processes)
        if (this.options.etaAsynchronousUpdate){
            this.updateETA();
        }

        // format string
        const s = this.formatter(this.options, params, this.payload);

        const forceRedraw = forceRendering || this.options.forceRedraw
            // force redraw in notty-mode!
            || (this.options.noTTYOutput && !this.terminal.isTTY());

        // string changed ? only trigger redraw on change!
        if (forceRedraw || this.lastDrawnString != s){
            // trigger event
            this.emit('redraw-pre');

            // set cursor to start of line
            this.terminal.cursorTo(0, null);

            // write output
            this.terminal.write(s);

            // clear to the right from cursor
            this.terminal.clearRight();

            // store string
            this.lastDrawnString = s;

            // set last redraw time
            this.lastRedraw = Date.now();

            // trigger event
            this.emit('redraw-post');
        }
    }

    // start the progress bar
    start(total, startValue, payload){