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server/generate/render-to-file.ts

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+import { ServerResponse, IncomingMessage } from 'node:http'
+import fs from 'node:fs'
+import path from 'node:path'
+import { Socket } from 'node:net'
+import { H3Event } from 'h3'
+
+import type { VueroServerRender } from '../types'
+import { resolve } from '../utils'
+
+export async function renderToFile(render: VueroServerRender, {
+  url,
+  template,
+  manifest,
+  outStatic,
+}: {
+  url: string
+  template: string
+  manifest: Record<string, string[]>
+  outStatic: string
+}) {
+  const sock = new Socket()
+  const req = new IncomingMessage(sock)
+  const res = new ServerResponse(req)
+  const event = new H3Event(req, res)
+
+  const html = await render({
+    event,
+    manifest,
+    template,
+  })
+
+  const base = url.endsWith('/') ? `${url}` : `${url}/`
+  const file = `${base}index.html`
+  const filePath = path.join(outStatic, file)
+
+  const dirname = path.dirname(filePath)
+  if (!fs.existsSync(dirname)) {
+    fs.mkdirSync(dirname, { recursive: true })
+  }
+
+  if (typeof html === 'string') {
+    fs.writeFileSync(resolve(filePath), html)
+  }
+  else {
+    const stream = fs.createWriteStream(resolve(filePath))
+
+    await html.pipeTo(new WritableStream({
+      write(chunk) {
+        stream.write(chunk)
+      },
+      close() {
+        stream.end()
+      },
+      abort() {
+        stream.end()
+      },
+    }))
+  }
+
+  return filePath
+}