split main and prs gha to allow dependabot-only cov step

.github/workflows/pr_tests.yaml

@@ -0,0 +1,85 @@
+name: Tests
+
+on:
+  # this target allows you to run tests in base context and access secrets
+  # so we can have dependabot PRs auto-merge on test pass
+  pull_request_target:
+    branches:
+      - main
+  merge_group:
+  workflow_dispatch:
+
+env:
+  FORCE_COLOR: "1"
+  # facilitate testing by building vLLM for CPU when needed
+  VLLM_CPU_DISABLE_AVX512: "true"
+  VLLM_TARGET_DEVICE: "cpu"
+  # prefer torch cpu version
+  PIP_EXTRA_INDEX_URL: "https://download.pytorch.org/whl/cpu"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  tests:
+    timeout-minutes: 20
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+        pyv: ["3.11"]
+        vllm_version:
+          # - "" # skip the pypi version as it will not work on CPU
+          - "git+https://github.com/vllm-project/vllm@v0.6.1"
+          - "git+https://github.com/vllm-project/vllm@main"
+          - "git+https://github.com/opendatahub-io/vllm@main"
+
+    steps:
+      - name: Check out the PR
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - name: Free Disk Space
+        uses: jlumbroso/free-disk-space@v1.3.1
+        with:
+          tool-cache: false
+          large-packages: false
+          docker-images: false
+      - name: Install vLLM build deps
+        run: |
+          sudo apt update
+          sudo apt install --no-install-recommends -y \
+            libnuma-dev libdnnl-dev opencl-dev
+
+      - name: Set up Python ${{ matrix.pyv }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.pyv }}
+
+      - name: Upgrade pip and nox
+        run: |
+          python -m pip install --upgrade pip nox
+          pip --version
+          nox --version
+
+      - name: Lint code and check dependencies
+        run: nox -v -s lint-${{ matrix.pyv }}
+
+      - name: Run tests
+        run: nox -v -s tests-${{ matrix.pyv }} -- --cov-report=xml
+        env:
+          VLLM_VERSION_OVERRIDE: ${{ matrix.vllm_version }}
+
+      - name: Upload coverage report (Dependabot only)
+        if: github.actor == 'dependabot[bot]'
+        uses: codecov/codecov-action@v4
+        with:
+          fail_ci_if_error: true
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+
+      - name: Build package
+        run: nox -s build-${{ matrix.pyv }}

.github/workflows/tests.yaml

@@ -3,8 +3,6 @@ name: Tests
 on:
   push:
     branches: [main]
-  pull_request:
-  merge_group:
   workflow_dispatch:
   schedule:
     - cron: "20 4 * * 2" # once a week