Function createResolver

server/utils/docs/client.ts:132–154

* Create a module resolver for @deno/doc. * * Handles resolving relative imports and esm.sh redirects.

()

 * Handles resolving relative imports and esm.sh redirects.
 */
function createResolver(): (specifier: string, referrer: string) => string {
  return (specifier: string, referrer: string) => {
    // Handle relative imports
    if (specifier.startsWith('.') || specifier.startsWith('/')) {
      return new URL(specifier, referrer).toString()
    }

    // Handle bare specifiers - resolve through esm.sh
    if (
      !specifier.startsWith('http://') &&
      !specifier.startsWith('https://') &&
      !isBuiltin(specifier)
    ) {
      // Try to resolve bare specifier relative to esm.sh base
      const baseUrl = new URL(referrer)
      if (baseUrl.hostname === 'esm.sh') {
        return `https://esm.sh/${specifier}`
      }
    }

    return specifier
  }
}

/**
 * Get the TypeScript types URL from esm.sh's x-typescript-types header.