From 5b7a0eee31962e01614523baf7717932dbfe4ff4 Mon Sep 17 00:00:00 2001
From: Aleksandr Chebotov <47745270+al-cheb@users.noreply.github.com>
Date: Tue, 17 Aug 2021 11:43:19 +0300
Subject: [PATCH] Add HOMEBREW_SHELLENV_PREFIX env (#3908)

---
 images/linux/scripts/installers/homebrew.sh | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/images/linux/scripts/installers/homebrew.sh b/images/linux/scripts/installers/homebrew.sh
index 3c325b1b..5ff740aa 100644
--- a/images/linux/scripts/installers/homebrew.sh
+++ b/images/linux/scripts/installers/homebrew.sh
@@ -15,9 +15,10 @@ eval $(/home/linuxbrew/.linuxbrew/bin/brew shellenv)
 
 # Update /etc/environemnt
 ## Put HOMEBREW_* variables
-brew shellenv|grep 'export HOMEBREW'|sed -E 's/^export (.*);$/\1/' | sudo tee -a /etc/environment
+## The variable `HOMEBREW_SHELLENV_PREFIX` will be exported to avoid adding duplicate entries to the environment variables.
+HOMEBREW_SHELLENV_PREFIX='' brew shellenv | grep 'export HOMEBREW'| sed -E 's/^export (.*);$/\1/' | sudo tee -a /etc/environment
 # add brew executables locations to PATH
-brew_path=$(brew shellenv|grep  '^export PATH' |sed -E 's/^export PATH="([^$]+)\$.*/\1/')
+brew_path=$(HOMEBREW_SHELLENV_PREFIX='' brew shellenv | grep '^export PATH' | sed -E 's/^export PATH="([^$]+)\$.*/\1/')
 prependEtcEnvironmentPath "$brew_path"
 setEtcEnvironmentVariable HOMEBREW_NO_AUTO_UPDATE 1
 setEtcEnvironmentVariable HOMEBREW_CLEANUP_PERIODIC_FULL_DAYS 3650