dependency-cruiser-fork/src/cli/tools/wrap-stream-in-html.js

Validate and visualize dependencies. With your rules. JavaScript, TypeScript, CoffeeScript. ES6, CommonJS, AMD.

const fs = require("fs");
const path = require("path");
const getStream = require("get-stream");

const HEADER_FILE = path.join(
  __dirname,
  "svg-in-html-snippets",
  "header.snippet.html"
);
const FOOTER_FILE = path.join(
  __dirname,
  "svg-in-html-snippets",
  "footer.snippet.html"
);

/**
 * Slaps the stuff in the passed stream in between the contents
 * of the header and the footer file and returns it as a string.
 *
 * Almost exactly the same as:
 * ```sh
 * cat pHeaderFileName - pFooterFileName
 * ```
 *
 * ... but portable over node platforms
 *
 * @param {string} pHeaderFileName header
 * @param {string} pFooterFileName footer
 * @param {stream} pStream stream whose characters are to be slapped between header and footer
 * @returns {string} yadda
 */
async function wrap(pHeaderFileName, pFooterFileName, pStream) {
  const lHeader = fs.readFileSync(pHeaderFileName, "utf8");
  const lFooter = fs.readFileSync(pFooterFileName, "utf8");

  return `${lHeader}${await getStream(pStream)}${lFooter}`;
}

module.exports = (pStream) => wrap(HEADER_FILE, FOOTER_FILE, pStream);