Function cropToWidth

lib/Common.js:524–536

* Crop a (possibly ANSI-colored) single line to `width` visible columns so * it does not wrap on narrow terminals. ANSI escapes are copied through * without counting toward the width, and a reset is appended after the * ellipsis so the truncation cannot leak color into following output.

(str, width)

 * ellipsis so the truncation cannot leak color into following output.
 */
function cropToWidth(str, width) {
  var out = '', visible = 0, i = 0;
  while (i < str.length) {
    if (str[i] === '\x1b') {
      var m = str.slice(i).match(/^\x1b\[[0-9;]*m/);
      if (m) { out += m[0]; i += m[0].length; continue; }
    }
    if (visible >= width - 1)
      return out + '\u2026\x1b[0m';
    out += str[i]; visible++; i++;
  }
  return out;
}

Common.printOut = function() {
  if (process.env.PM2_SILENT === 'true' || process.env.PM2_PROGRAMMATIC === 'true') return false;