Function cleanMcpb

src/node/validate.ts:186–274

(inputPath: string)

}

export async function cleanMcpb(inputPath: string) {
  const tmpDir = await fs.mkdtemp(resolve(os.tmpdir(), "mcpb-clean-"));
  const mcpbPath = resolve(tmpDir, "in.mcpb");
  const unpackPath = resolve(tmpDir, "out");

  console.log(" -- Cleaning MCPB...");

  try {
    await fs.copyFile(inputPath, mcpbPath);
    console.log(" -- Unpacking MCPB...");
    await unpackExtension({ mcpbPath, silent: true, outputDir: unpackPath });

    const manifestPath = resolve(unpackPath, "manifest.json");
    const originalManifest = await fs.readFile(manifestPath, "utf-8");
    const manifestData = JSON.parse(originalManifest);
    const manifestVersion = getManifestVersionFromRawData(manifestData);
    if (!manifestVersion) {
      throw new Error("Unrecognized or unsupported manifest version");
    }
    const result =
      MANIFEST_SCHEMAS_LOOSE[manifestVersion].safeParse(manifestData);

    if (!result.success) {
      throw new Error(
        `Unrecoverable manifest issues, please run "mcpb validate"`,
      );
    }
    await fs.writeFile(manifestPath, JSON.stringify(result.data, null, 2));

    if (
      originalManifest.trim() !==
      (await fs.readFile(manifestPath, "utf8")).trim()
    ) {
      console.log(" -- Update manifest to be valid per MCPB schema");
    } else {
      console.log(" -- Manifest already valid per MCPB schema");
    }

    const nodeModulesPath = resolve(unpackPath, "node_modules");
    if (existsSync(nodeModulesPath)) {
      console.log(" -- node_modules found, deleting development dependencies");

      const destroyer = new DestroyerOfModules({
        rootDirectory: unpackPath,
      });

      try {
        await destroyer.destroy();
      } catch (error) {
        // If modules have already been deleted in a previous clean, the walker
        // will fail when it can't find required dependencies. This is expected
        // and safe to ignore.
        if (
          error instanceof Error &&
          error.message.includes("Failed to locate module")
        ) {
          console.log(
            " -- Some modules already removed, skipping remaining cleanup",