Simplify extraction

Author: SteveSandersonMS

nodejs/examples/basic-example.ts

@@ -2,9 +2,9 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *--------------------------------------------------------------------------------------------*/
 
-import { z } from "zod";
-import { join } from "node:path";
 import { homedir } from "node:os";
+import { join } from "node:path";
+import { z } from "zod";
 import { CopilotClient, defineTool } from "../src/index.js";
 
 console.log("🚀 Starting Copilot SDK Example\n");
@@ -27,6 +27,7 @@ const client = new CopilotClient({
     logLevel: "info",
     acquisition: {
         downloadDir: join(homedir(), ".copilot-sdk-example", "cli"),
+        minVersion: "0.0.400",
         onProgress: ({ bytesDownloaded, totalBytes }) => {
             if (totalBytes > 0) {
                 const pct = Math.round((bytesDownloaded / totalBytes) * 100);

nodejs/package-lock.json

@@ -59,7 +59,6 @@
     "prettier": "^3.4.0",
     "quicktype-core": "^23.2.6",
     "rimraf": "^6.1.2",
-    "tar": "^7.5.7",
     "tsx": "^4.20.6",
     "typescript": "^5.0.0",
     "vitest": "^4.0.18"

nodejs/package.json

@@ -7,7 +7,6 @@ import { rename, rm } from "node:fs/promises";
 import { homedir, platform, arch, tmpdir } from "node:os";
 import { join, dirname, resolve } from "node:path";
 import { spawn } from "node:child_process";
-import { extract } from "tar";
 import * as semver from "semver";
 import { CopilotClient } from "./client.js";
 import { PREFERRED_CLI_VERSION } from "./generated/versions.js";
@@ -212,11 +211,7 @@ async function downloadCli(
         const extractDir = join(tempDir, "extracted");
         mkdirSync(extractDir, { recursive: true });
 
-        if (ext === "zip") {
-            await extractZip(archivePath, extractDir);
-        } else {
-            await extract({ file: archivePath, cwd: extractDir });
-        }
+        await extractArchive(archivePath, extractDir);
 
         const execName = platform() === "win32" ? "copilot.exe" : "copilot";
         const extractedExec = findExecutable(extractDir, execName);
@@ -251,18 +246,15 @@ async function downloadCli(
     }
 }
 
-async function extractZip(zipPath: string, destDir: string): Promise<void> {
+// tar is built-in on Windows 10+, macOS, and Linux
+async function extractArchive(archivePath: string, destDir: string): Promise<void> {
     return new Promise((resolve, reject) => {
-        const proc = spawn("powershell", [
-            "-NoProfile",
-            "-Command",
-            `Expand-Archive -Path '${zipPath}' -DestinationPath '${destDir}' -Force`,
-        ]);
+        const proc = spawn("tar", ["-xf", archivePath, "-C", destDir], { stdio: "ignore" });
 
         proc.on("error", reject);
         proc.on("exit", (code) => {
             if (code === 0) resolve();
-            else reject(new Error(`Expand-Archive failed with code ${code}`));
+            else reject(new Error(`Archive extraction failed for ${archivePath} (exit code ${code})`));
         });
     });
 }