Retrieves the filename of the caller of a function.

stack_util.js

StackUtil = {};

/**
 * Get the filename of the caller of a function
 *
 * @param {Boolean} options.isLineNumberRendered
 * @return {String} name
 */
StackUtil.getCallerFilename = function (options) {
  var name, callSite;
  options = options || {};

  Error.prepareStackTrace = _getCallerCallSite;
  callSite = new Error().stack;
  Error.prepareStackTrace = undefined;

  name = callSite.getFileName()
  if (options.isLineNumberRendered) {
    name += ':' + callSite.getLineNumber()
          + ':' + callSite.getColumnNumber();
  }

  return name;
};

function _getCallerCallSite(err, trace) {
  // 0: stack_util, 1: caller, 2: caller's caller
  return trace[2];
}

module.exports = StackUtil;

Calling Error.prepareStackTrace has negative implications on performance. Consider using the following instead:

Error.captureStackTrace(this, this.constructor);
var nativeStack = Object.getOwnPropertyDescriptor(this, 'stack');
var callSite = nativeStack.get();
...