[llvm] [libc++] Move the check-generated-files job to Github Actions (PR #68920)

[Louis Dionne via llvm-commits]

https://github.com/ldionne created https://github.com/llvm/llvm-project/pull/68920

This allows running these quick checks faster than in our Buildkite pipeline, which has much more latency. This will also avoid blocking the rest of the testing pipeline in case the generated-files checks are failing.

>From c167ea67d633c8ff54a4ec0ffebab16f279dafae Mon Sep 17 00:00:00 2001
From: Louis Dionne <ldionne.2 at gmail.com>
Date: Thu, 12 Oct 2023 10:29:40 -0700
Subject: [PATCH] [libc++] Move the check-generated-files job to Github Actions

This allows running these quick checks faster than in our Buildkite
pipeline, which has much more latency. This will also avoid blocking
the rest of the testing pipeline in case the generated-files checks
are failing.
---
 .../libcxx-check-generated-files.yml          | 29 +++++++++++++++++++
 libcxx/utils/ci/buildkite-pipeline.yml        | 18 ------------
 2 files changed, 29 insertions(+), 18 deletions(-)
 create mode 100644 .github/workflows/libcxx-check-generated-files.yml

diff --git a/.github/workflows/libcxx-check-generated-files.yml b/.github/workflows/libcxx-check-generated-files.yml
new file mode 100644
index 000000000000000..609065c1e1c38aa
--- /dev/null
+++ b/.github/workflows/libcxx-check-generated-files.yml
@@ -0,0 +1,29 @@
+name: "Check libc++ generated files"
+on:
+  pull_request_target:
+    paths:
+      - 'libcxx/**'
+permissions:
+  pull-requests: write
+
+jobs:
+  check_generated_files:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Fetch LLVM sources
+        uses: actions/checkout at v4
+        with:
+          fetch-depth: 2
+
+      - name: Install clang-format
+        uses: aminya/setup-cpp at v1
+        with:
+          clangformat: 17.0.1
+
+      - name: Install Ninja
+        uses: seanmiddleditch/gha-setup-ninja at master
+        with:
+          destination: build/ninja-install
+
+      - name: Check generated files
+        run: libcxx/utils/ci/run-buildbot check-generated-output
diff --git a/libcxx/utils/ci/buildkite-pipeline.yml b/libcxx/utils/ci/buildkite-pipeline.yml
index ebfb35eee91e1ed..8866a33d04d5a2d 100644
--- a/libcxx/utils/ci/buildkite-pipeline.yml
+++ b/libcxx/utils/ci/buildkite-pipeline.yml
@@ -33,24 +33,6 @@ steps:
   #
   # Light pre-commit tests for things like forgetting to update generated files.
   #
-  - label: "Generated output"
-    command: "libcxx/utils/ci/run-buildbot check-generated-output"
-    artifact_paths:
-      - "**/generated_output.patch"
-      - "**/generated_output.status"
-    env:
-        CC: "clang-${LLVM_HEAD_VERSION}"
-        CXX: "clang++-${LLVM_HEAD_VERSION}"
-        CLANG_FORMAT: "/usr/bin/clang-format-${LLVM_STABLE_VERSION}"
-    agents:
-      queue: "libcxx-builders"
-      os: "linux"
-    retry:
-      automatic:
-        - exit_status: -1  # Agent was lost
-          limit: 2
-    timeout_in_minutes: 120
-
   - label: "Documentation"
     command: "libcxx/utils/ci/run-buildbot documentation"
     artifact_paths: