WIP: Experiment with improving the buildkite triggering

Author: ldionne

.ci/generate-buildkite-pipeline-premerge

@@ -54,24 +54,6 @@ echo "$modified_dirs" >&2
 
 . ./.ci/compute-projects.sh
 
-# Project specific pipelines.
-
-# If libc++ or one of the runtimes directories changed.
-if echo "$modified_dirs" | grep -q -E "^(libcxx|libcxxabi|libunwind|runtimes|cmake)$"; then
-  cat <<EOF
-- trigger: "libcxx-ci"
-  build:
-    message: "${buildMessage}"
-    commit: "${BUILDKITE_COMMIT}"
-    branch: "${BUILDKITE_BRANCH}"
-EOF
-fi
-
-# Generic pipeline for projects that have not defined custom steps.
-#
-# Individual projects should instead define the pre-commit CI tests that suits their
-# needs while letting them run on the infrastructure provided by LLVM.
-
 # Figure out which projects need to be built on each platform
 all_projects="bolt clang clang-tools-extra compiler-rt cross-project-tests flang libc libclc lld lldb llvm mlir openmp polly pstl"
 modified_projects="$(keep-modified-projects ${all_projects})"

.github/workflows/libcxx-build-and-test.yaml

@@ -275,3 +275,20 @@ jobs:
       - name: Build and test
         run: |
           bash libcxx/utils/ci/run-buildbot ${{ matrix.config }}
+
+  # Some smaller platforms provide
+  buildkite:
+    # needs: [ stage1 ]
+    steps:
+      - uses: "buildkite/[email protected]"
+        with:
+          buildkite_api_access_token: ${{ secrets.TRIGGER_BK_BUILD_TOKEN }}
+          pipeline: "llvm-project/libcxx-ci"
+          branch: "main"
+          commit: "HEAD"
+          message:  ":github: Triggered from a GitHub Action"
+          ignore_pipeline_branch_filter: true
+          send_pull_request: true
+          wait: true
+          wait_interval: 10
+          wait_timeout: 300