Function scanFiles

scripts/convert-mdnice-images-to-cdn.js:211–240

(files, domains)

}

function scanFiles(files, domains) {
  const urlToFiles = new Map();
  const fileContents = new Map();
  let referenceCount = 0;

  for (const file of files) {
    const content = fs.readFileSync(file, "utf8");
    fileContents.set(file, content);

    const matches = findImageUrls(content, domains);
    if (matches.length === 0) {
      continue;
    }

    for (const url of matches) {
      referenceCount += 1;
      if (!urlToFiles.has(url)) {
        urlToFiles.set(url, new Set());
      }
      urlToFiles.get(url).add(file);
    }
  }

  return {
    fileContents,
    referenceCount,
    urls: [...urlToFiles.keys()].sort(),
    urlToFiles,
  };
}

function findImageUrls(content, domains) {
  const urls = new Set();