stylelint-bundle-worker.js
function match(files, pattern, opts) {
  if (utils.typeOf(files) !== 'string' && !Array.isArray(files)) {
    throw new Error(msg('match', 'files', 'a string or array'));
  }

  files = utils.arrayify(files);
  opts = opts || {};

  var negate = opts.negate || false;
  var orig = pattern;

  if (typeof pattern === 'string') {
    negate = pattern.charAt(0) === '!';
    if (negate) {
      pattern = pattern.slice(1);
    }

    // we need to remove the character regardless,
    // so the above logic is still needed
    if (opts.nonegate === true) {
      negate = false;
    }
  }

  var _isMatch = matcher(pattern, opts);
  var len = files.length, i = 0;
  var res = [];

  while (i < len) {
    var file = files[i++];
    var fp = utils.unixify(file, opts);

    if (!_isMatch(fp)) { continue; }
    res.push(fp);
  }

  if (res.length === 0) {
    if (opts.failglob === true) {
      throw new Error('micromatch.match() found no matches for: "' + orig + '".');
    }

    if (opts.nonull || opts.nullglob) {
      res.push(utils.unescapeGlob(orig));
    }
  }

  // if `negate` was defined, diff negated files
  if (negate) { res = utils.diff(files, res); }

  // if `ignore` was defined, diff ignored filed
  if (opts.ignore && opts.ignore.length) {
    pattern = opts.ignore;
    opts = utils.omit(opts, ['ignore']);
    res = utils.diff(res, micromatch(res, pattern, opts));
  }

  if (opts.nodupes) {
    return utils.unique(res);
  }
  return res;
}
function match(files, pattern, opts) {
  if (utils.typeOf(files) !== 'string' && !Array.isArray(files)) {
    throw new Error(msg('match', 'files', 'a string or array'));
  }

  files = utils.arrayify(files);
  opts = opts || {};

  var negate = opts.negate || false;
  var orig = pattern;

  if (typeof pattern === 'string') {
    negate = pattern.charAt(0) === '!';
    if (negate) {
      pattern = pattern.slice(1);
    }

    // we need to remove the character regardless,
    // so the above logic is still needed
    if (opts.nonegate === true) {
      negate = false;
    }
  }

  var _isMatch = matcher(pattern, opts);
  var len = files.length, i = 0;
  var res = [];

  while (i < len) {
    var file = files[i++];
    var fp = utils.unixify(file, opts);

    if (!_isMatch(fp)) { continue; }
    res.push(fp);
  }

  if (res.length === 0) {
    if (opts.failglob === true) {
      throw new Error('micromatch.match() found no matches for: "' + orig + '".');
    }

    if (opts.nonull || opts.nullglob) {
      res.push(utils.unescapeGlob(orig));
    }
  }

  // if `negate` was defined, diff negated files
  if (negate) { res = utils.diff(files, res); }

  // if `ignore` was defined, diff ignored filed
  if (opts.ignore && opts.ignore.length) {
    pattern = opts.ignore;
    opts = utils.omit(opts, ['ignore']);
    res = utils.diff(res, micromatch(res, pattern, opts));
  }

  if (opts.nodupes) {
    return utils.unique(res);
  }
  return res;
}
Return an array of files that match the given glob pattern.

This function is called by the main `micromatch` function If you only
need to pass a single pattern you might get very minor speed improvements
using this function.

@param  {Array} `files`
@param  {String} `pattern`
@param  {Object} `options`
@return {Array}