From 3519ec1fc503d2c5346275e6b6bba4c01db60855 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 13 Jun 2026 23:54:29 +0000
Subject: [PATCH] Handle relative symlink targets robustly in cache tar logic

---
 install_and_cache_pkgs.sh | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/install_and_cache_pkgs.sh b/install_and_cache_pkgs.sh
index b943a5c..00ac7f7 100755
--- a/install_and_cache_pkgs.sh
+++ b/install_and_cache_pkgs.sh
@@ -106,7 +106,7 @@ for installed_package in ${installed_packages}; do
           get_tar_relpath "${f}"
           if [ -L "${f}" ]; then
             symlink_path="${f}"
-            # Guard against circular links while still supporting deep alternatives chains.
+            # Guard against circular links; 40 is intentionally high for alternatives chains.
             max_symlink_depth=40
             for i in $(seq 1 ${max_symlink_depth}); do
               if [ ! -L "${symlink_path}" ]; then
@@ -119,7 +119,12 @@ for installed_package in ${installed_packages}; do
                   target_path="${target}"
                   ;;
                 *)
-                  target_path="$(dirname "${symlink_path}")/${target}"
+                  target_dir="$(dirname "${symlink_path}")"
+                  if [ "${target_dir}" = "/" ]; then
+                    target_path="/${target}"
+                  else
+                    target_path="${target_dir}/${target}"
+                  fi
                   ;;
               esac