text: 'use strict';
  const fs = require('fs');
  const path = require('path');
  const fastGlob = require('fast-glob');
  const gitIgnore = require('ignore');
  const pify = require('pify');
  const slash = require('slash');
  
  const DEFAULT_IGNORE = [
  	'**/node_modules/**',
  	'**/bower_components/**',
  	'**/flow-typed/**',
  	'**/coverage/**',
  	'**/.git'
  ];
  
  const readFileP = pify(fs.readFile);
  
  const mapGitIgnorePatternTo = base => ignore => {
  	if (ignore.startsWith('!')) {
  		return '!' + path.posix.join(base, ignore.substr(1));
  	}
  
  	return path.posix.join(base, ignore);
  };
  
  const parseGitIgnore = (content, opts) => {
  	const base = slash(path.relative(opts.cwd, path.dirname(opts.fileName)));
  
  	return content
  		.split(/\r?\n/)
  		.filter(Boolean)
  		.filter(l => l.charAt(0) !== '#')
  		.map(mapGitIgnorePatternTo(base));
  };
  
  const reduceIgnore = files => {
  	return files.reduce((ignores, file) => {
  		ignores.add(parseGitIgnore(file.content, {
  			cwd: file.cwd,
  			fileName: file.filePath
  		}));
  		return ignores;
  	}, gitIgnore());
  };
  
  const getIsIgnoredPredecate = (ignores, cwd) => {
  	return p => ignores.ignores(slash(path.relative(cwd, p)));
  };
  
  const getFile = (file, cwd) => {
  	const filePath = path.join(cwd, file);
  	return readFileP(filePath, 'utf8')
  		.then(content => ({
  			content,
  			cwd,
  			filePath
  		}));
  };
  
  const getFileSync = (file, cwd) => {
  	const filePath = path.join(cwd, file);
  	const content = fs.readFileSync(filePath, 'utf8');
  
  	return {
  		content,
  		cwd,
  		filePath
  	};
  };
  
  const normalizeOpts = opts => {
  	opts = opts || {};
  	const ignore = opts.ignore || [];
  	const cwd = opts.cwd || process.cwd();
  	return {ignore, cwd};
  };
  
  module.exports = o => {
  	const opts = normalizeOpts(o);
  
  	return fastGlob('**/.gitignore', {ignore: DEFAULT_IGNORE.concat(opts.ignore), cwd: opts.cwd})
  		.then(paths => Promise.all(paths.map(file => getFile(file, opts.cwd))))
  		.then(files => reduceIgnore(files))
  		.then(ignores => getIsIgnoredPredecate(ignores, opts.cwd));
  };
  
  module.exports.sync = o => {
  	const opts = normalizeOpts(o);
  
  	const paths = fastGlob.sync('**/.gitignore', {ignore: DEFAULT_IGNORE.concat(opts.ignore), cwd: opts.cwd});
  	const files = paths.map(file => getFileSync(file, opts.cwd));
  	const ignores = reduceIgnore(files);
  	return getIsIgnoredPredecate(ignores, opts.cwd);
  };
  