From 59fcaa3674976d430745b172a4db27bd66dbc23d Mon Sep 17 00:00:00 2001
From: "L. E. Segovia" <13498015+amyspark@users.noreply.github.com>
Date: Mon, 8 Oct 2018 01:39:52 +0000
Subject: [PATCH] Cask: set write permissions on symlinks

---
 Library/Homebrew/cask/quarantine.rb | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Library/Homebrew/cask/quarantine.rb b/Library/Homebrew/cask/quarantine.rb
index a51fbb1c28..fde78f135e 100644
--- a/Library/Homebrew/cask/quarantine.rb
+++ b/Library/Homebrew/cask/quarantine.rb
@@ -138,6 +138,19 @@ module Cask
 
       system_command!("/bin/chmod", args: ["-R", "u+w", to])
 
+      # Symlinks cannot be fixed with -R.
+      resolved_symlinks = resolved_paths.select(&:symlink?)
+
+      system_command!("/usr/bin/xargs",
+                      args: [
+                        "-0",
+                        "--",
+                        "/bin/chmod",
+                        "-h",
+                        "u+w",
+                      ],
+                      input: resolved_symlinks.join("\0"))
+
       quarantiner = system_command("/usr/bin/xargs",
                                    args: [
                                      "-0",