/**
 * A utility that allows copying one file to multiple directories, such
 * as the LICENSE file.
 */
var path = require('path');
var fs = require('fs');

module.exports = function(gulp, plugins, config) {
  return function() {
    var content = fs.readFileSync(config.src);
    getSubdirs(config.dest).forEach(function(subDir) {
      var destFile = path.join(config.dest, subDir, path.basename(config.src));
      fs.writeFileSync(destFile, content);
    });
  };
};

function getSubdirs(rootDir) {
  return fs.readdirSync(rootDir).filter(function(file) {
    if (file[0] === '.') {
      return false;
    }
    var dirPath = path.join(rootDir, file);
    return fs.statSync(dirPath).isDirectory();
  });
}