Add on-demand desktop server bundle

scripts/release/prepare-desktop-app.js

@@ -0,0 +1,146 @@
+#!/usr/bin/env node
+import { readFileSync } from 'node:fs';
+import fs from 'node:fs/promises';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const rootDir = path.resolve(__dirname, '..', '..');
+const stageDir = path.join(rootDir, '.desktop-build', 'desktop-app');
+
+const packageJson = JSON.parse(
+  await fs.readFile(path.join(rootDir, 'package.json'), 'utf8'),
+);
+
+function getElectronVersion() {
+  try {
+    return JSON.parse(
+      readFileSync(path.join(rootDir, 'node_modules', 'electron', 'package.json'), 'utf8'),
+    ).version;
+  } catch {
+    try {
+      return JSON.parse(
+        readFileSync(path.join(rootDir, 'package-lock.json'), 'utf8'),
+      ).packages['node_modules/electron'].version;
+    } catch {
+      throw new Error('Could not resolve an exact Electron version for desktop packaging.');
+    }
+  }
+}
+
+async function pathExists(filePath) {
+  try {
+    await fs.access(filePath);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+async function copyRequired(relativePath) {
+  const from = path.join(rootDir, relativePath);
+  const to = path.join(stageDir, relativePath);
+  if (!(await pathExists(from))) {
+    throw new Error(`Required desktop build input is missing: ${relativePath}`);
+  }
+  await fs.cp(from, to, { recursive: true });
+}
+
+async function copyIfExists(relativePath) {
+  const from = path.join(rootDir, relativePath);
+  if (!(await pathExists(from))) return false;
+  await fs.cp(from, path.join(stageDir, relativePath), { recursive: true });
+  return true;
+}
+
+async function copyNodeModule(packageName) {
+  const parts = packageName.split('/');
+  const source = path.join(rootDir, 'node_modules', ...parts);
+  if (!(await pathExists(source))) return false;
+
+  const target = path.join(stageDir, 'node_modules', ...parts);
+  await fs.mkdir(path.dirname(target), { recursive: true });
+  await fs.cp(source, target, { recursive: true });
+  return true;
+}
+
+function buildDesktopPackageJson(copiedOptionalDependencies) {
+  return {
+    name: `${packageJson.name}-desktop`,
+    version: packageJson.version,
+    productName: packageJson.productName,
+    description: `${packageJson.productName} desktop shell`,
+    author: packageJson.author,
+    license: packageJson.license,
+    type: 'module',
+    main: 'electron/main.js',
+    dependencies: {
+      ws: packageJson.dependencies.ws,
+    },
+    optionalDependencies: copiedOptionalDependencies,
+    build: {
+      appId: packageJson.build.appId,
+      productName: packageJson.build.productName,
+      asar: packageJson.build.asar,
+      artifactName: packageJson.build.artifactName,
+      electronVersion: getElectronVersion(),
+      directories: {
+        output: '../../release',
+      },
+      extraMetadata: {
+        main: 'electron/main.js',
+      },
+      files: [
+        'electron/**',
+        'public/**',
+        'dist/**',
+        'dist-server/**',
+        'node_modules/**',
+        'package.json',
+      ],
+      protocols: packageJson.build.protocols,
+      mac: packageJson.build.mac,
+      win: packageJson.build.win,
+    },
+  };
+}
+
+await fs.rm(stageDir, { recursive: true, force: true });
+await fs.mkdir(stageDir, { recursive: true });
+
+await copyRequired('electron');
+await copyRequired('dist');
+await copyRequired('public');
+
+// The desktop app still ships the standalone Computer Use desktop agent, but
+// not the full local server. Local CloudCLI is downloaded on demand.
+await copyRequired('dist-server/server/computer-use-agent.js');
+await copyIfExists('dist-server/server/computer-use-agent.js.map');
+await copyRequired('dist-server/server/modules/computer-use/computer-executor.js');
+await copyIfExists('dist-server/server/modules/computer-use/computer-executor.js.map');
+
+const copiedRuntimeDependencies = [];
+if (await copyNodeModule('ws')) {
+  copiedRuntimeDependencies.push('ws');
+} else {
+  throw new Error('Required desktop dependency is missing from node_modules: ws');
+}
+
+const copiedOptionalDependencies = {};
+for (const [name, version] of Object.entries(packageJson.optionalDependencies || {})) {
+  if (await copyNodeModule(name)) {
+    copiedOptionalDependencies[name] = version;
+  }
+}
+
+await fs.writeFile(
+  path.join(stageDir, 'package.json'),
+  `${JSON.stringify(buildDesktopPackageJson(copiedOptionalDependencies), null, 2)}\n`,
+  'utf8',
+);
+
+console.log(`Prepared thin desktop app at ${path.relative(rootDir, stageDir)}`);
+console.log(`Runtime dependencies: ${copiedRuntimeDependencies.join(', ')}`);
+if (Object.keys(copiedOptionalDependencies).length) {
+  console.log(`Optional dependencies: ${Object.keys(copiedOptionalDependencies).join(', ')}`);
+}