Function fetchReadmeFromJsdelivr

server/utils/readme-loaders.ts:45–80

(
  packageName: string,
  readmeFilenames: string[],
  version?: string,
)

 * Falls back through candidate README filenames in small parallel batches.
 */
export async function fetchReadmeFromJsdelivr(
  packageName: string,
  readmeFilenames: string[],
  version?: string,
): Promise<string | null> {
  const versionSuffix = version ? `@${version}` : ''

  for (let index = 0; index < readmeFilenames.length; index += JSDELIVR_README_FETCH_BATCH_SIZE) {
    const batch = readmeFilenames.slice(index, index + JSDELIVR_README_FETCH_BATCH_SIZE)
    const responses = await Promise.all(
      batch.map(async filename => {
        try {
          const url = `https://cdn.jsdelivr.net/npm/${packageName}${versionSuffix}/${filename}`
          const response = await fetch(url)
          if (!response.ok) {
            return null
          }

          return response
        } catch {
          return null
        }
      }),
    )

    for (const [responseIndex, response] of responses.entries()) {
      const text = await response?.text()
      if (text?.trim()) {
        await cancelUnreadBatchResponses(responses, responseIndex + 1)
        return text
      }
    }
  }

  return null
}

export const resolvePackageReadmeSource = defineCachedFunction(
  async (packagePath: string) => {