Function generateSnapshotServer

packages/fresh/src/dev/dev_build_cache.ts:456–553

(
  options: {
    outDir: string;
    buildId: string;
    clientEntry: string;
    islands: IslandModChunk[];
    // deno-lint-ignore no-explicit-any
    fsRoutesFiles: FsRouteFileNoMod<any>[];
    staticFiles: PendingStaticFile[];
    entryAssets: string[];
    writeSpecifier: (filePath: string) => string;
  },
)

}

export async function generateSnapshotServer(
  options: {
    outDir: string;
    buildId: string;
    clientEntry: string;
    islands: IslandModChunk[];
    // deno-lint-ignore no-explicit-any
    fsRoutesFiles: FsRouteFileNoMod<any>[];
    staticFiles: PendingStaticFile[];
    entryAssets: string[];
    writeSpecifier: (filePath: string) => string;
  },
): Promise<string> {
  const {
    islands,
    writeSpecifier,
    fsRoutesFiles,
    outDir,
  } = options;

  const islandImports = islands
    .map((item) => {
      const spec = writeSpecifier(item.server);
      return `import * as ${item.name} from "${spec}";`;
    })
    .join("\n");

  const fsRouteImports = fsRoutesFiles
    .map((item, i) => {
      if (item.lazy) return null;
      const spec = writeSpecifier(item.filePath);
      return `import * as fsRoute_${i} from "${spec}"`;
    })
    .filter(Boolean)
    .join("\n");

  const islandMarkers = islands.map((item) => {
    const browser = JSON.stringify(item.browser);
    const name = JSON.stringify(item.name);
    const css = JSON.stringify(item.css);
    return `islandPreparer.prepare(islands, ${item.name}, ${browser}, ${name}, ${css});`;
  }).join("\n");

  const serializedFsRoutes = fsRoutesFiles
    .map((item, i) => {
      const id = JSON.stringify(item.id);
      const pattern = JSON.stringify(item.pattern);
      const type = JSON.stringify(item.type);
      const routePattern = JSON.stringify(item.routePattern);

      let mod = "";
      if (item.lazy) {
        const spec = writeSpecifier(item.filePath);
        mod = `() => import(${JSON.stringify(spec)})`;
      } else {
        mod = `fsRoute_${i}`;
      }