Function compileFiles

scripts/utils/compileFiles.mjs:84–141

(fileNameFilter = process.argv[2])

/** @param {string | undefined} fileNameFilter */
export async function compileFiles(fileNameFilter = process.argv[2]) {
  const fileNames = await getFileNames(fileNameFilter);

  if (!fileNames.length) {
    console.log("no changes detected.");
    return;
  }

  const parseWast = await getWastParser();

  const cachePath = fileURLToPath(
    new URL("../../.cache/cache.txt", import.meta.url)
  );
  const cacheFileHandle = await fs.open(cachePath, "a");

  let successCount = 0;
  try {
    await Promise.all(
      fileNames.map(async (file) => {
        try {
          const jsFilePath = fileURLToPath(
            new URL(
              "../../exercises/" + file.replace(/\.[^.]+$/, ".mjs"),
              import.meta.url
            )
          );
          await fs.access(jsFilePath);

          console.log(`Running associated JS file for ${file}`);
          await import(jsFilePath);
          console.log("_".repeat(32) + "\n");
          return;
        } catch {}

        const filePath = fileURLToPath(
          new URL("../../exercises/" + file, import.meta.url)
        );

        try {
          await parseWast(filePath);

          // add WAT hash
          const fileBytes = await fs.readFile(filePath);
          const hash = await getSha1Hash(fileBytes);
          cacheFileHandle.write(`${file}:${hash}\n`);
          successCount++;
        } catch (e) {
          console.error(`Error at ${filePath}:`, e);
          process.exit(1);
        }
      })
    );
  } finally {
    await cacheFileHandle.close();
  }

  console.log(`compiled ${successCount} file${successCount === 1 ? "" : "s"}`);
}