update-file-content/examples/update-sw-content.mjs

A simple utility for executing RegEx replacement on files, powered by stream.

import { join } from 'path';
import { updateFileContent } from "../src/index.mjs";
import { processFiles } from "./helpers/process-files.mjs";
import { __dirname, root_directory } from "./helpers/__dirname.mjs";

const mode = ["network-first", "offline-first"][1];

updateFileContent({
  file: join(__dirname, "./service-worker/service-worker.js"),
  replace: [
    {
      search: /(network-first)/,
      replacement: mode
    },
    {
      search: /const\s+version\s*=\s*"(.+?)";?/,
      replacement: "Whatever"
    }
  ]
}).then(
  () => 
  console.info("Mode: ".concat(mode)) 
  || 
  console.info("Version number updated.")
);

updateCacheResources().then(() => console.info("CacheResources updated."));

updateDLC().then(() => console.info("DownloadableContent updated."));

async function updateCacheResources () {
  const replacement = [];

  replacement.push("`/`"); // root

  await processFiles(join(root_directory, "./build/"), filename => 
      replacement.push(`"${decode(filename)}"`)
  );

  return _updateCache("cache-resources.js", `\n  ${replacement.join(",\n  ")}\n`);
}

async function updateDLC () {
  const ignore = /node_modules|\.git/;
  const replacement = [];

  await processFiles(root_directory, filename => {
      if(ignore.test(filename))
          return ;
      else replacement.push(`"${decode(filename)}"`);
  });

  return _updateCache("downloadable.js", `\n  ${replacement.join(",\n  ")}\n`);
}

function decode (filename) {
  return filename.replace(root_directory, "").replace(/\\/g, "/");
}

async function _updateCache(filename, replacement) {
  return updateFileContent({
      file: join(__dirname, "./service-worker/assets/", filename),
      search: /export\s+default\s+\[((.|\n)*?)\];/,
      replacement,
      separator: null
  });
}