From ee06ad86f1b508cbdda7ea66c096986ec000102d Mon Sep 17 00:00:00 2001
From: "CanbiZ (MickLesk)" <47820557+MickLesk@users.noreply.github.com>
Date: Mon, 17 Aug 2026 11:26:34 +0200
Subject: [PATCH] teslamate: use precompiled Elixir (#16561)

---
 ct/teslamate.sh              | 10 ++++++++++
 install/teslamate-install.sh |  6 +++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/ct/teslamate.sh b/ct/teslamate.sh
index 57da73241..443086726 100644
--- a/ct/teslamate.sh
+++ b/ct/teslamate.sh
@@ -35,6 +35,16 @@ function update_script() {
     systemctl stop teslamate
     msg_ok "Stopped Service"
 
+    if [[ ! -d /opt/elixir ]]; then
+      msg_info "Migrating to newer Elixir (required by TeslaMate)"
+      $STD apt remove -y elixir
+      fetch_and_deploy_gh_release "elixir" "elixir-lang/elixir" "prebuild" "latest" "/opt/elixir" "elixir-otp-27.zip"
+      for bin in elixir elixirc iex mix; do
+        ln -sf "/opt/elixir/bin/$bin" "/usr/local/bin/$bin"
+      done
+      msg_ok "Migrated to newer Elixir"
+    fi
+
     CLEAN_INSTALL=1 fetch_and_deploy_gh_release "teslamate" "teslamate-org/teslamate" "tarball"
 
     msg_info "Building TeslaMate (Patience)"
diff --git a/install/teslamate-install.sh b/install/teslamate-install.sh
index 6a7e4b84d..bc5f221e0 100644
--- a/install/teslamate-install.sh
+++ b/install/teslamate-install.sh
@@ -19,7 +19,6 @@ $STD apt install -y \
   erlang \
   erlang-dev \
   erlang-syntax-tools \
-  elixir \
   mosquitto \
   locales
 sed -i 's/^# *\(en_US.UTF-8\)/\1/' /etc/locale.gen
@@ -27,6 +26,11 @@ $STD locale-gen
 systemctl enable -q --now mosquitto
 msg_ok "Installed Dependencies"
 
+fetch_and_deploy_gh_release "elixir" "elixir-lang/elixir" "prebuild" "latest" "/opt/elixir" "elixir-otp-27.zip"
+for bin in elixir elixirc iex mix; do
+  ln -sf "/opt/elixir/bin/$bin" "/usr/local/bin/$bin"
+done
+
 PG_VERSION="17" setup_postgresql
 PG_DB_NAME="teslamate" PG_DB_USER="teslamate" PG_DB_GRANT_SUPERUSER="true" setup_postgresql_db
 NODE_VERSION="22" setup_nodejs