Fix a bug with getCompressionMethod

packages/cache/RELEASES.md

@@ -4,5 +4,5 @@
 
 - Initial release
 
-### 0.2.0
+### 0.2.1
 - Fixes issues with the zstd compression algorithm on Windows and Ubuntu 16.04 [#469](https://github.com/actions/toolkit/pull/469)

packages/cache/package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@actions/cache",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

packages/cache/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@actions/cache",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "preview": true,
   "description": "Actions cache lib",
   "keywords": [

packages/cache/src/internal/cacheUtils.ts

@@ -83,7 +83,7 @@ async function getVersion(app: string): Promise<string> {
 
 // Use zstandard if possible to maximize cache performance
 export async function getCompressionMethod(): Promise<CompressionMethod> {
-  if (process.platform === 'win32' && !isGnuTarInstalled()) {
+  if (process.platform === 'win32' && !(await isGnuTarInstalled())) {
     // Disable zstd due to bug https://github.com/actions/cache/issues/301
     return CompressionMethod.Gzip
   }