From 547a77cf75a4bf831698cb751fbd937acc5a629c Mon Sep 17 00:00:00 2001
From: David Hadka <dhadka@users.noreply.github.com>
Date: Fri, 9 Apr 2021 13:38:55 -0500
Subject: [PATCH] Fix permissions issues using gtar on mac

---
 packages/cache/src/internal/tar.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/cache/src/internal/tar.ts b/packages/cache/src/internal/tar.ts
index 1b70dac0..fbea7c2e 100644
--- a/packages/cache/src/internal/tar.ts
+++ b/packages/cache/src/internal/tar.ts
@@ -26,6 +26,8 @@ async function getTarPath(
     case 'darwin': {
       const gnuTar = await io.which('gtar', false)
       if (gnuTar) {
+        // fix permission denied errors when extracting BSD tar archive with GNU tar - https://github.com/actions/cache/issues/527
+        args.push('--delay-directory-restore')
         return gnuTar
       }
       break