Function getPackageJSONURL

lib/internal/modules/package_json_reader.js:267–302

(specifier, base)

}

function getPackageJSONURL(specifier, base) {
  const { packageName, packageSubpath, isScoped } = parsePackageName(specifier, base);

  // ResolveSelf
  const packageConfig = getPackageScopeConfig(base);
  if (packageConfig.exists) {
    if (packageConfig.exports != null && packageConfig.name === packageName) {
      const packageJSONPath = packageConfig.pjsonPath;
      return { packageJSONUrl: pathToFileURL(packageJSONPath), packageJSONPath, packageSubpath };
    }
  }

  let packageJSONUrl = new URL(`./node_modules/${packageName}/package.json`, base);
  let packageJSONPath = fileURLToPath(packageJSONUrl);
  let lastPath;
  do {
    const stat = internalFsBinding.internalModuleStat(
      StringPrototypeSlice(packageJSONPath, 0, packageJSONPath.length - 13),
    );
    // Check for !stat.isDirectory()
    if (stat !== 1) {
      lastPath = packageJSONPath;
      packageJSONUrl = new URL(
        `${isScoped ? '../' : ''}../../../node_modules/${packageName}/package.json`,
        packageJSONUrl,
      );
      packageJSONPath = fileURLToPath(packageJSONUrl);
      continue;
    }

    // Package match.
    return { packageJSONUrl, packageJSONPath, packageSubpath };
  } while (packageJSONPath.length !== lastPath.length);

  throw new ERR_MODULE_NOT_FOUND(packageName, fileURLToPath(base), null);
}

/** @type {import('./esm/resolve.js').defaultResolve} */
let defaultResolve;