Function publishPackage

scripts/publish-packages.ts:276–337

(
  pkgDir: string,
  dryRun: boolean,
  publishable: ReadonlySet<string>,
  publishableVersions: ReadonlyMap<string, string>,
)

};

const publishPackage = async (
  pkgDir: string,
  dryRun: boolean,
  publishable: ReadonlySet<string>,
  publishableVersions: ReadonlyMap<string, string>,
) => {
  const { name, version } = await readPackageMeta(pkgDir);
  const channel = resolveChannel(version);

  if (!existsSync(join(pkgDir, "dist"))) {
    throw new Error(`Missing dist/ in ${pkgDir}. Did you run 'bun run build:packages'?`);
  }

  console.log(`[pack] ${name}@${version} (${channel})${dryRun ? " [dry-run]" : ""}`);

  // Clean any stale tarballs from previous runs so our readdir finds exactly
  // the archive produced by the pack below.
  const stale = (await readdir(pkgDir)).filter((entry) => entry.endsWith(".tgz"));
  for (const entry of stale) {
    await rm(join(pkgDir, entry), { force: true });
  }

  const restoreWorkspaceVersions = await applyWorkspaceVersions(
    pkgDir,
    publishable,
    publishableVersions,
  );
  const restorePublishConfig = await applyPublishConfig(pkgDir);
  try {
    await $`bun pm pack`.cwd(pkgDir);
  } finally {
    await restorePublishConfig();
    await restoreWorkspaceVersions();
  }

  const produced = (await readdir(pkgDir)).filter((entry) => entry.endsWith(".tgz"));
  if (produced.length !== 1) {
    throw new Error(
      `Expected exactly 1 .tgz in ${pkgDir}, found ${produced.length}: ${produced.join(", ")}`,
    );
  }
  const tarball = produced[0]!;

  if (dryRun) {
    return;
  }

  // Skip publishing already-shipped versions. The pack still ran above so
  // smoke tests / pkg-pr-new previews always have a fresh tarball.
  if (await packageAlreadyPublished(name, version)) {
    console.log(`[skip] ${name}@${version} already on npm`);
    return;
  }

  console.log(`[publish] ${name}@${version} (${channel})`);

  const args = ["publish", tarball, "--access", "public", "--tag", channel];
  if (process.env.GITHUB_ACTIONS === "true") {