#!/usr/bin/env bun/** * Merge per-arch electron-builder update manifests into one latest-mac.yml. * * The desktop publish workflow builds mac arm64 and x64 in separate matrix * legs, and each electron-builder invocation emits its own latest-mac.yml * listing only that arch's artifacts. electron-updater clients fetch the * single `latest-mac.yml` from the release, so publishing either leg's file * as-is points every Mac at one arch (arm64 users were being served x64 * zips). This script unions the `files` entries; electron-updater picks the * right one per client by matching the running arch against the file name. * * Usage: bun scripts/merge-latest-mac-yml.ts <x64.yml> <arm64.yml> <out.yml> * The first input's top-level path/sha512 (the legacy single-file fields read * by very old updaters) are kept, so pass the x64 manifest first. */ interface UpdateFileEntry {  readonly url: string;  readonly sha512: string;  readonly size: number;} interface UpdateManifest {  readonly version: string;  readonly files: readonly UpdateFileEntry[];  readonly path: string;  readonly sha512: string;  readonly releaseDate: string;} const isUpdateFileEntry = (value: unknown): value is UpdateFileEntry => {  if (typeof value !== "object" || value === null) return false;  const entry = value as Record<string, unknown>;  return (    typeof entry["url"] === "string" &&    typeof entry["sha512"] === "string" &&    typeof entry["size"] === "number"  );}; const parseManifest = (source: string, path: string): UpdateManifest => {  const raw = Bun.YAML.parse(source) as Record<string, unknown>;  const files = Array.isArray(raw["files"]) ? raw["files"].filter(isUpdateFileEntry) : [];  if (    typeof raw["version"] !== "string" ||    typeof raw["path"] !== "string" ||    typeof raw["sha512"] !== "string" ||    typeof raw["releaseDate"] !== "string" ||    files.length === 0  ) {    throw new Error(`Unrecognized electron-builder update manifest at ${path}`);  }  return {    version: raw["version"],    files,    path: raw["path"],    sha512: raw["sha512"],    releaseDate: raw["releaseDate"],  };}; const serializeManifest = (manifest: UpdateManifest): string =>  [    `version: ${manifest.version}`,    "files:",    ...manifest.files.flatMap((file) => [      `  - url: ${file.url}`,      `    sha512: ${file.sha512}`,      `    size: ${file.size}`,    ]),    `path: ${manifest.path}`,    `sha512: ${manifest.sha512}`,    `releaseDate: '${manifest.releaseDate}'`,    "",  ].join("\n"); const [primaryPath, secondaryPath, outPath] = process.argv.slice(2);if (!primaryPath || !secondaryPath || !outPath) {  throw new Error("Usage: merge-latest-mac-yml.ts <primary.yml> <secondary.yml> <out.yml>");} const primary = parseManifest(await Bun.file(primaryPath).text(), primaryPath);const secondary = parseManifest(await Bun.file(secondaryPath).text(), secondaryPath); if (primary.version !== secondary.version) {  throw new Error(    `Refusing to merge mismatched versions: ${primary.version} (${primaryPath}) vs ${secondary.version} (${secondaryPath})`,  );} const seen = new Set<string>();const files = [...primary.files, ...secondary.files].filter((file) => {  if (seen.has(file.url)) return false;  seen.add(file.url);  return true;}); await Bun.write(outPath, serializeManifest({ ...primary, files }));console.log(`Merged ${primaryPath} + ${secondaryPath} → ${outPath} (${files.length} files)`);