[llvm] workflows/release-binaries: Limit the number of projects built for pull requests (PR #128947)

[Tom Stellard via llvm-commits]

https://github.com/tstellar created https://github.com/llvm/llvm-project/pull/128947

The github hosted runners can't do a full build before the 6 hour timeout, so build less projects to give the build a chance to finish.

We use more powerful runners for the actual release builds, so we just need to make this change for pull requests where we use the slower github hosted runners.

>From cf2a27f184aedc672e2f6149e74e07cf1c0f2c9e Mon Sep 17 00:00:00 2001
From: Tom Stellard <tstellar at redhat.com>
Date: Wed, 26 Feb 2025 13:49:03 -0800
Subject: [PATCH] workflows/release-binaries: Limit the number of projects
 built for pull requests

The github hosted runners can't do a full build before the 6 hour
timeout, so build less projects to give the build a chance to finish.

We use more powerful runners for the actual release builds, so we
just need to make this change for pull requests where we use the
slower github hosted runners.
---
 .github/workflows/release-binaries.yml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/.github/workflows/release-binaries.yml b/.github/workflows/release-binaries.yml
index 231dd26e54ae0..d70f0d352d8b1 100644
--- a/.github/workflows/release-binaries.yml
+++ b/.github/workflows/release-binaries.yml
@@ -145,6 +145,11 @@ jobs:
             target_cmake_flags="$target_cmake_flags -DLLVM_RELEASE_ENABLE_PROJECTS='clang;lld;lldb;clang-tools-extra;polly;mlir'"
           fi
           target_cmake_flags="$target_cmake_flags -DBOOTSTRAP_BOOTSTRAP_DARWIN_osx_ARCHS=$arches -DBOOTSTRAP_BOOTSTRAP_DARWIN_osx_BUILTIN_ARCHS=$arches"
+
+          # For pull requests we use the github-hosted runners, which aren't
+          # powerful enough to do a full build, so build less projects so that
+          # the build has a chance to succeed.
+          target_cmake_flags="$target_cmake_flags -DLLVM_RELEASE_ENABLE_PROJECTS='clang;lld'"
         fi
 
         build_flang="true"