kocha/lib/utils/cursor.js

Modern, simpler Mocha clone, no globals, lint friendly

'use strict';

var tty = require('tty'

/**
 * Check if both stdio streams are associated with a tty.
 */
);var isatty = tty.isatty(1) && tty.isatty(2

/**
 * Expose term window size, with some defaults for when stderr is not a tty.
 */
);var window = {
  width: 75
};

if (isatty) {
  window.width = process.stdout.getWindowSize ? process.stdout.getWindowSize(1)[0] : tty.getWindowSize()[1];
}

/**
 * Expose some basic cursor interactions that are common among reporters.
 */
var cursor = {
  hide: function hide() {
    isatty && process.stdout.write('\x1B[?25l');
  },
  show: function show() {
    isatty && process.stdout.write('\x1B[?25h');
  },
  deleteLine: function deleteLine() {
    isatty && process.stdout.write('\x1B[2K');
  },
  beginningOfLine: function beginningOfLine() {
    isatty && process.stdout.write('\x1B[0G');
  },
  CR: function CR() {
    if (isatty) {
      cursor.deleteLine();
      cursor.beginningOfLine();
    } else {
      process.stdout.write('\r');
    }
  }
};

module.exports = cursor;
module.exports.window = window;