app/node_modules/mathjax-full/components/bin/copy

#! /usr/bin/env node

/*************************************************************
 *
 *  Copyright (c) 2018 The MathJax Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

/**
 * @fileoverview  Copies specified files to the distribution directory
 *
 * @author dpvc@mathjax.org (Davide Cervone)
 */


const fs = require('fs');
const path = require('path');

/**
 * The amount of space for each level of indentation
 */
const INDENT = '  ';

/**
 * The configuration data for the copy operation
 */
const config = JSON.parse(fs.readFileSync(process.argv[2] || 'copy.json'));

/**
 * Get the directory for node modules (either the parent of the MathJax directory,
 * or the MathJax node_modules directory, if it exists).
 */
const parent = path.resolve(__dirname, '..', '..');
const nodeDir = (dir => (fs.existsSync(dir) ? dir : path.resolve(parent, '..')))(path.join(parent, 'node_modules'));

/**
 * Copy a file or directory tree
 *
 * @param {string} from     The directory to copy from
 * @param {string} to       The directory to copy to
 * @param {string} name     The name of the file or directory to copy
 * @param {string} space    The indentation for output
 */
function copyFile(from, to, name, space) {
  !fs.existsSync(to) && fs.mkdirSync(to, {recursive: true});
  const copy = path.resolve(from, name);
  const dest = path.resolve(to, name);
  if (fs.lstatSync(copy).isDirectory()) {
    console.info(space + name + '/');
    for (const file of fs.readdirSync(copy)) {
      copyFile(copy, dest, file, space + INDENT);
    }
  } else {
    console.info(space + name);
    fs.copyFileSync(copy, dest);
  }
}

/**
 * Copy the given files
 */
const wd = process.cwd();
const to = path.resolve(wd, config.to);
const from = path.resolve(wd, config.from.replace(/\[node\]/, nodeDir));
for (const name of config.copy) {
  copyFile(from, to, name, '');
}