Function prerenderWithVite

packages/start-plugin-core/src/vite/prerender.ts:7–54

({
  startConfig,
  builder,
}: {
  startConfig: TanStackStartOutputConfig
  builder: ViteBuilder
})

import type { PreviewServer, ResolvedConfig, ViteBuilder } from 'vite'

export async function prerenderWithVite({
  startConfig,
  builder,
}: {
  startConfig: TanStackStartOutputConfig
  builder: ViteBuilder
}) {
  const serverEnv = builder.environments[VITE_ENVIRONMENT_NAMES.server]

  if (!serverEnv) {
    throw new Error(
      `Vite's "${VITE_ENVIRONMENT_NAMES.server}" environment not found`,
    )
  }

  const clientEnv = builder.environments[VITE_ENVIRONMENT_NAMES.client]
  if (!clientEnv) {
    throw new Error(
      `Vite's "${VITE_ENVIRONMENT_NAMES.client}" environment not found`,
    )
  }

  const outputDir = clientEnv.config.build.outDir

  process.env.TSS_PRERENDERING = 'true'
  process.env.TSS_CLIENT_OUTPUT_DIR = outputDir

  const previewServer = await startPreviewServer(serverEnv.config)
  const baseUrl = getResolvedUrl(previewServer)

  const handler: PrerenderHandler = {
    getClientOutputDirectory() {
      return outputDir
    },
    request(path, options) {
      const url = new URL(path, baseUrl)
      return fetch(new Request(url, options))
    },
    close() {
      return previewServer.close()
    },
  }

  return prerender({
    startConfig,
    handler,
  })
}

async function startPreviewServer(
  viteConfig: ResolvedConfig,