name: Bazel Tests

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main
  workflow_dispatch:

jobs:

  ubuntu:
    runs-on: ${{ matrix.os }}
    env:
      BAZEL_CACHE: --remote_cache=https://storage.googleapis.com/protobuf-bazel-cache/upb

    strategy:
      fail-fast: false   # Don't cancel all jobs if one fails.
      matrix:
        include:
          - { NAME: "Fastbuild", BAZEL: bazel, CC: clang, os: ubuntu-20.04, flags: "" }
          - { NAME: "Optmized", BAZEL: bazel, CC: clang, os: ubuntu-20.04, flags: "-c opt" }  # Some warnings only fire with -c opt
          - { NAME: "GCC Optimized", BAZEL: bazel, CC: gcc, os: ubuntu-20.04, flags: "-c opt" }
          - { NAME: "FastTable", BAZEL: bazel, CC: clang, os: ubuntu-20.04, flags: "--//:fasttable_enabled=true -- -cmake:test_generated_files" }
          - { NAME: "ASAN", BAZEL: bazel, CC: clang, os: ubuntu-20.04, flags: "--config=asan -c dbg -- -benchmarks:benchmark -python/..." }
          - { NAME: "UBSAN", BAZEL: bazel, CC: clang, os: ubuntu-20.04, flags: "--config=ubsan -c dbg -- -benchmarks:benchmark -python/... -lua/...", install: "libunwind-dev" }
          - { NAME: "32-bit", BAZEL: bazel, CC: clang, os: ubuntu-20.04, flags: "--copt=-m32 --linkopt=-m32 -- -... benchmarks:benchmark ", install: "g++-multilib" }
          - { NAME: "macOS", BAZEL: bazel, CC: clang, os: macos-11, flags: "" }
          # We support two Bazel versions back per https://opensource.google/documentation/policies/cplusplus-support
          - { NAME: "Bazel 4.1.0", BAZEL: bazel-4.1.0-linux-x86_64, CC: clang, os: ubuntu-20.04, flags: "" }
          - { NAME: "Bazel 5.3.0", BAZEL: bazel-5.3.0-linux-x86_64, CC: clang, os: ubuntu-20.04, flags: "" }

    name: ${{ matrix.NAME }}

    steps:
      - uses: actions/checkout@v2
      - name: Set up Cloud SDK
        uses: google-github-actions/auth@v0
        with:
          credentials_json: ${{ secrets.GOOGLE_CREDENTIALS }}
          export_environment_variables: true
        if: ${{ github.event.pull_request.head.repo.full_name == 'protocolbuffers/upb' }}
      - name: Download historical Bazel version
        run: |
             FILENAME=$HOME/bin/${{ matrix.BAZEL }}
             VERSION=$(echo ${{ matrix.BAZEL }} | cut -d- -f 2 )
             mkdir -p $HOME/bin
             echo $HOME/bin >> $GITHUB_PATH
             wget -O $FILENAME https://github.com/bazelbuild/bazel/releases/download/$VERSION/${{ matrix.BAZEL }}
             chmod a+x $FILENAME
        if: ${{ matrix.BAZEL != 'bazel' }}
      - name: Set up Bazel read/write caching
        run: echo "BAZEL_CACHE_AUTH=--google_default_credentials" >> $GITHUB_ENV
        if: ${{ github.event.pull_request.head.repo.full_name == 'protocolbuffers/upb' }}
      - name: Set up Bazel read-only caching
        run: echo "BAZEL_CACHE_AUTH=--remote_upload_local_results=false" >> $GITHUB_ENV
        if: ${{ github.event.pull_request.head.repo.full_name != 'protocolbuffers/upb' }}
      - name: Setup Python venv
        run: rm -rf /tmp/venv && python3 -m venv /tmp/venv
      - name: Install dependencies
        run: sudo apt update && sudo apt install -y ${{ matrix.install }}
        if: matrix.install != ''
      - name: Install numpy
        run: pip install numpy
      - name: Run tests
        run: cd ${{ github.workspace }} && PATH=/tmp/venv/bin:$PATH CC=${{ matrix.CC }} ${{ matrix.BAZEL }} test --test_output=errors $BAZEL_CACHE $BAZEL_CACHE_AUTH ... ${{ matrix.flags }}