From bd8d5911ca74fec8680a2f4e8cfb49863f87eb75 Mon Sep 17 00:00:00 2001
From: Rene Leonhardt <65483435+reneleonhardt@users.noreply.github.com>
Date: Fri, 20 Jun 2025 15:38:59 +0200
Subject: [PATCH] feat (build): centralize LLVM_VERSION

---
 src/ci/docker/scripts/build-clang.sh | 5 +++--
 src/ci/docker/scripts/versions.sh    | 7 +++++++
 src/ci/scripts/install-clang.sh      | 5 ++---
 3 files changed, 12 insertions(+), 5 deletions(-)
 create mode 100644 src/ci/docker/scripts/versions.sh

diff --git a/src/ci/docker/scripts/build-clang.sh b/src/ci/docker/scripts/build-clang.sh
index 536991cc06b7d..c395f0b68ed47 100755
--- a/src/ci/docker/scripts/build-clang.sh
+++ b/src/ci/docker/scripts/build-clang.sh
@@ -2,10 +2,11 @@
 
 set -ex
 
+source versions.sh
 source shared.sh
 
-# Try to keep the LLVM version here in sync with src/ci/scripts/install-clang.sh
-LLVM=llvmorg-20.1.0-rc2
+# Should be in sync with src/ci/scripts/install-clang.sh
+LLVM=llvmorg-$LLVM_VERSION
 
 mkdir llvm-project
 cd llvm-project
diff --git a/src/ci/docker/scripts/versions.sh b/src/ci/docker/scripts/versions.sh
new file mode 100644
index 0000000000000..a9e5193d5b8c9
--- /dev/null
+++ b/src/ci/docker/scripts/versions.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+# ignore-tidy-linelength
+
+# To keep docker / non-docker builds in sync
+
+# renovate: datasource=github-releases depName=llvm/llvm-project versioning=semver-coerced extractVersion=^llvmorg-(?<version>\d+\.\d+\.\d+(?:.*))
+export LLVM_VERSION=20.1.3
diff --git a/src/ci/scripts/install-clang.sh b/src/ci/scripts/install-clang.sh
index a9528e9291595..5d7c1612c13ac 100755
--- a/src/ci/scripts/install-clang.sh
+++ b/src/ci/scripts/install-clang.sh
@@ -7,12 +7,11 @@
 set -euo pipefail
 IFS=$'\n\t'
 
+# LLVM_VERSION should be in sync with src/ci/docker/scripts/build-clang.sh
+source "$(cd "$(dirname "$0")" && pwd)/../docker/scripts/versions.sh"
 source "$(cd "$(dirname "$0")" && pwd)/../shared.sh"
 
 # Update both macOS's and Windows's tarballs when bumping the version here.
-# Try to keep this in sync with src/ci/docker/scripts/build-clang.sh
-LLVM_VERSION="20.1.3"
-
 if isMacOS; then
     # FIXME: This is the latest pre-built version of LLVM that's available for
     # x86_64 MacOS. We may want to consider building our own LLVM binaries