Function makeOtelLoaders

dev-packages/rollup-utils/npmHelpers.mjs:190–270

(outputFolder, hookVariant, options = {})

 *   `node --import @sentry/node/import` injects the channels unconditionally.
 */
export function makeOtelLoaders(outputFolder, hookVariant, options = {}) {
  if (hookVariant !== 'otel' && hookVariant !== 'sentry-node') {
    throw new Error('hookVariant is neither "otel" nor "sentry-node". Pick one.');
  }

  const { injectDiagnosticsChannel = false } = options;
  if (injectDiagnosticsChannel && hookVariant !== 'otel') {
    throw new Error('injectDiagnosticsChannel is only supported with the "otel" hookVariant.');
  }

  const expectedRegisterLoaderLocation = `${outputFolder}/import-hook.mjs`;
  const foundRegisterLoaderExport = Object.keys(packageDotJSON.exports ?? {}).some(key => {
    return packageDotJSON?.exports?.[key]?.import?.default === expectedRegisterLoaderLocation;
  });
  if (!foundRegisterLoaderExport) {
    throw new Error(
      `You used the makeOtelLoaders() rollup utility without specifying the import hook inside \`exports[something].import.default\`. Please add "${expectedRegisterLoaderLocation}" as a value there (maybe check for typos - it needs to be "${expectedRegisterLoaderLocation}" exactly).`,
    );
  }

  const expectedHooksLoaderLocation = `${outputFolder}/loader-hook.mjs`;
  const foundHookLoaderExport = Object.keys(packageDotJSON.exports ?? {}).some(key => {
    return packageDotJSON?.exports?.[key]?.import?.default === expectedHooksLoaderLocation;
  });
  if (!foundHookLoaderExport) {
    throw new Error(
      `You used the makeOtelLoaders() rollup utility without specifying the loader hook inside \`exports[something].import.default\`. Please add "${expectedHooksLoaderLocation}" as a value there (maybe check for typos - it needs to be "${expectedHooksLoaderLocation}" exactly).`,
    );
  }

  const requiredDep = hookVariant === 'otel' ? '@opentelemetry/instrumentation' : '@sentry/node';
  const foundImportInTheMiddleDep =
    Object.keys(packageDotJSON.dependencies ?? {}).some(key => {
      return key === requiredDep;
    }) ||
    Object.keys(packageDotJSON.devDependencies ?? {}).some(key => {
      return key === requiredDep;
    });

  if (!foundImportInTheMiddleDep) {
    throw new Error(
      `You used the makeOtelLoaders() rollup utility but didn't specify the "${requiredDep}" dependency in ${path.resolve(
        process.cwd(),
        'package.json',
      )}. Please add it to the dependencies.`,
    );
  }

  return defineConfig([
    // register() hook
    {
      input: path.join(
        __dirname,
        'code',
        hookVariant === 'otel'
          ? injectDiagnosticsChannel
            ? 'otelEsmImportHookWithDiagnosticsChannelTemplate.js'
            : 'otelEsmImportHookTemplate.js'