From 4ac57d85b26d4cdb91aba8559afd35a184f7f2e4 Mon Sep 17 00:00:00 2001
From: Leo Heitmann Ruiz <leo@heitmannruiz.org>
Date: Wed, 12 Jun 2024 16:24:45 +0200
Subject: [PATCH] Read ZDOTDIR environment variable

---
 Library/Homebrew/test/utils/shell_spec.rb | 4 ++--
 Library/Homebrew/utils/shell.rb           | 2 +-
 bin/brew                                  | 1 +
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/Library/Homebrew/test/utils/shell_spec.rb b/Library/Homebrew/test/utils/shell_spec.rb
index f3f2fb9bce742..16bb3670a3a5b 100644
--- a/Library/Homebrew/test/utils/shell_spec.rb
+++ b/Library/Homebrew/test/utils/shell_spec.rb
@@ -21,13 +21,13 @@
 
     it "returns /tmp/.zshrc for Zsh if ZDOTDIR is /tmp" do
       ENV["SHELL"] = "/bin/zsh"
-      ENV["ZDOTDIR"] = "/tmp"
+      ENV["HOMEBREW_ZDOTDIR"] = "/tmp"
       expect(described_class.profile).to eq("/tmp/.zshrc")
     end
 
     it "returns ~/.zshrc for Zsh" do
       ENV["SHELL"] = "/bin/zsh"
-      ENV["ZDOTDIR"] = nil
+      ENV["HOMEBREW_ZDOTDIR"] = nil
       expect(described_class.profile).to eq("~/.zshrc")
     end
 
diff --git a/Library/Homebrew/utils/shell.rb b/Library/Homebrew/utils/shell.rb
index 186fc038e6828..d514f5914fd0c 100644
--- a/Library/Homebrew/utils/shell.rb
+++ b/Library/Homebrew/utils/shell.rb
@@ -60,7 +60,7 @@ def profile
         rc_profile = "#{Dir.home}/.rcrc"
         return rc_profile if File.exist? rc_profile
       when :zsh
-        return "#{ENV["ZDOTDIR"]}/.zshrc" if ENV["ZDOTDIR"].present?
+        return "#{ENV["HOMEBREW_ZDOTDIR"]}/.zshrc" if ENV["HOMEBREW_ZDOTDIR"].present?
       end
 
       SHELL_PROFILE_MAP.fetch(preferred, "~/.profile")
diff --git a/bin/brew b/bin/brew
index 91a687ec5571b..3d70018d67daa 100755
--- a/bin/brew
+++ b/bin/brew
@@ -180,6 +180,7 @@ USED_BY_HOMEBREW_VARS=(
   TMUX
   XDG_CACHE_HOME
   XDG_RUNTIME_DIR
+  ZDOTDIR
 )
 for VAR in "${USED_BY_HOMEBREW_VARS[@]}"
 do