.github/workflows/libcxx-pr-test-tools.yml

# This workflow exercises libc++ tools whose testing doesn't belong in the conformance
# suite or in `check-cxx` proper.
#
# The actual logic lives in `libcxx/utils/ci/run-buildbot test-tools`, which is also how
# failures can be reproduced locally (after installing libcxx/utils/requirements.txt):
#
#     CC=clang CXX=clang++ libcxx/utils/ci/run-buildbot test-tools

name: "[libc++] Test tools"

on:
  pull_request:
    paths:
      - 'libcxx/**'
      - 'libcxxabi/**'
      - 'libunwind/**'
      - 'runtimes/**'
      - 'cmake/**'
      - '.github/workflows/libcxx-pr-test-tools.yml'
  schedule:
    # Match the main libc++ CI cron
    - cron: '0 8 * * *'

permissions:
  contents: read # Default everything to read-only

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  test-tools:
    if: github.repository_owner == 'llvm'
    runs-on: llvm-premerge-libcxx-runners
    env:
      CC: clang-23
      CXX: clang++-23
    steps:
      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
        with:
          persist-credentials: false
          fetch-depth: 0 # some tools need full git history
          fetch-tags: true

      - name: Set up Python dependencies
        run: |
          python3 -m venv .venv
          source .venv/bin/activate
          pip install -r libcxx/utils/requirements.txt

      - name: Run the tooling smoke test
        run: |
          source .venv/bin/activate
          libcxx/utils/ci/run-buildbot test-tools