From 8eb58132eb02c843a54ec7baa6337f54dd024648 Mon Sep 17 00:00:00 2001
From: Guillaume Wenzek <gwenzek@users.noreply.github.com>
Date: Sun, 15 Jun 2025 23:03:26 +0200
Subject: [PATCH] fix top level in tar file

---
 src/Package/Fetch.zig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Package/Fetch.zig b/src/Package/Fetch.zig
index 9acfe1d97acd..86c99ed348de 100644
--- a/src/Package/Fetch.zig
+++ b/src/Package/Fetch.zig
@@ -527,7 +527,8 @@ fn runResource(
         // directory.
         f.computed_hash = try computeHash(f, pkg_path, filter);
 
-        break :blk if (unpack_result.root_dir.len > 0)
+        const dot_root_dir = unpack_result.root_dir.len == 1 and unpack_result.root_dir[0] == '.';
+        break :blk if (unpack_result.root_dir.len > 0 and !dot_root_dir)
             try fs.path.join(arena, &.{ tmp_dir_sub_path, unpack_result.root_dir })
         else
             tmp_dir_sub_path;