Always build and run Cython tests + other CI improvements

.github/actions/doc_preview/action.yml

@@ -21,7 +21,7 @@ runs:
     # Note: the PR previews will be removed once merged to main (see below) 
     - name: Deploy doc preview
       if: ${{ github.ref_name != 'main' }}
-      uses: JamesIves/github-pages-deploy-action@v4
+      uses: JamesIves/github-pages-deploy-action@6c2d9db40f9296374acc17b90404b6e8864128c8  # v4.7.3
       with:
         git-config-name: cuda-python-bot
         git-config-email: [email protected]
@@ -31,7 +31,7 @@ runs:
 
     - name: Leave a comment after deployment
       if: ${{ github.ref_name != 'main' }}
-      uses: marocchino/sticky-pull-request-comment@v2
+      uses: marocchino/sticky-pull-request-comment@67d0dec7b07ed060a405f9b2a64b8ab319fdd7db  # v2.9.2
       with:
         header: pr-preview
         number: ${{ inputs.pr-number }}
@@ -47,7 +47,7 @@ runs:
     # The steps below are executed only when building on main.    
     - name: Remove doc preview
       if: ${{ github.ref_name == 'main' }}
-      uses: JamesIves/github-pages-deploy-action@v4
+      uses: JamesIves/github-pages-deploy-action@6c2d9db40f9296374acc17b90404b6e8864128c8  # v4.7.3
       with:
         git-config-name: cuda-python-bot
         git-config-email: [email protected]
@@ -57,7 +57,7 @@ runs:
 
     - name: Leave a comment after removal
       if: ${{ github.ref_name == 'main' }}
-      uses: marocchino/sticky-pull-request-comment@v2
+      uses: marocchino/sticky-pull-request-comment@67d0dec7b07ed060a405f9b2a64b8ab319fdd7db  # v2.9.2
       with:
         header: pr-preview
         number: ${{ inputs.pr-number }}

.github/actions/fetch_ctk/action.yml

@@ -39,7 +39,7 @@ runs:
 
     - name: Download CTK cache
       id: ctk-get-cache
-      uses: actions/cache/restore@v4
+      uses: actions/cache/restore@5a3ec84eff668545956fd18022155c47e93e2684  # v4.2.3
       continue-on-error: true
       with:
         key: ${{ env.CTK_CACHE_KEY }}
@@ -123,7 +123,7 @@ runs:
     - name: Upload CTK cache
       if: ${{ always() &&
               steps.ctk-get-cache.outputs.cache-hit != 'true' }}
-      uses: actions/cache/save@v4
+      uses: actions/cache/save@5a3ec84eff668545956fd18022155c47e93e2684  # v4.2.3
       with:
         key: ${{ env.CTK_CACHE_KEY }}
         path: ./${{ env.CTK_CACHE_FILENAME }}

.github/actions/get_pr_number/action.yml

@@ -29,7 +29,7 @@ runs:
 
     - name: Get PR data (main branch)
       if: ${{ github.ref_name == 'main' }}
-      uses: actions/github-script@v7
+      uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea  # v7.0.1
       id: get-pr-data
       with:
         script: |

.github/dependabot.yml

@@ -0,0 +1,10 @@
+# Copyright (c) 2025, NVIDIA CORPORATION & AFFILIATES. ALL RIGHTS RESERVED.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: weekly

.github/workflows/backport.yml

@@ -23,7 +23,7 @@ jobs:
          }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
 
       - name: Load branch name
         id: get-branch
@@ -32,7 +32,7 @@ jobs:
           echo "OLD_BRANCH=${OLD_BRANCH}" >> $GITHUB_ENV
 
       - name: Create backport pull requests
-        uses: korthout/backport-action@v3
+        uses: korthout/backport-action@436145e922f9561fc5ea157ff406f21af2d6b363  # v3.2.0
         with:
           copy_assignees: true
           copy_labels_pattern: true

.github/workflows/build-docs.yml

@@ -47,7 +47,7 @@ jobs:
         shell: bash -el {0}
     steps:
       - name: Checkout ${{ github.event.repository.name }}
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
         with:
           fetch-depth: 0
           ref: ${{ inputs.git-tag }}
@@ -56,7 +56,7 @@ jobs:
       # is resolved
 
       - name: Set up miniforge
-        uses: conda-incubator/setup-miniconda@v3
+        uses: conda-incubator/setup-miniconda@505e6394dae86d6a5c7fbb6e3fb8938e3e863830  # v3.1.1
         with:
           activate-environment: cuda-python-docs
           environment-file: ./cuda_python/docs/environment-docs.yml
@@ -103,7 +103,7 @@ jobs:
           echo "CUDA_BINDINGS_ARTIFACTS_DIR=$(realpath "$REPO_DIR/cuda_bindings/dist")" >> $GITHUB_ENV
 
       - name: Download cuda-python build artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093  # v4.3.0
         with:
           name: cuda-python-wheel
           path: .
@@ -117,14 +117,14 @@ jobs:
 
       - name: Download cuda.bindings build artifacts
         if: ${{ !inputs.is-release }}
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093  # v4.3.0
         with:
           name: ${{ env.CUDA_BINDINGS_ARTIFACT_NAME }}
           path: ${{ env.CUDA_BINDINGS_ARTIFACTS_DIR }}
 
       - name: Download cuda.bindings build artifacts
         if: ${{ inputs.is-release }}
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093  # v4.3.0
         with:
           pattern: ${{ env.CUDA_BINDINGS_ARTIFACT_NAME }}
           merge-multiple: true
@@ -139,14 +139,14 @@ jobs:
 
       - name: Download cuda.core build artifacts
         if: ${{ !inputs.is-release }}
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093  # v4.3.0
         with:
           name: ${{ env.CUDA_CORE_ARTIFACT_NAME }}
           path: ${{ env.CUDA_CORE_ARTIFACTS_DIR }}
 
       - name: Download cuda.core build artifacts
         if: ${{ inputs.is-release }}
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093  # v4.3.0
         with:
           pattern: ${{ env.CUDA_CORE_ARTIFACT_NAME }}
           merge-multiple: true
@@ -221,7 +221,7 @@ jobs:
 
       # TODO: Consider removing this step?
       - name: Upload doc artifacts
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa  # v3.0.1
         with:
           path: artifacts/
           retention-days: 3
@@ -236,7 +236,7 @@ jobs:
 
       - name: Deploy doc update
         if: ${{ github.ref_name == 'main' || inputs.is-release }}
-        uses: JamesIves/github-pages-deploy-action@v4
+        uses: JamesIves/github-pages-deploy-action@6c2d9db40f9296374acc17b90404b6e8864128c8  # v4.7.3
         with:
           git-config-name: cuda-python-bot
           git-config-email: [email protected]

.github/workflows/build-wheel.yml

@@ -1,4 +1,4 @@
-# Copyright (c) 2025, NVIDIA CORPORATION & AFFILIATES. ALL RIGHTS RESERVED.
+# Copyright (c) 2024-2025, NVIDIA CORPORATION & AFFILIATES. ALL RIGHTS RESERVED.
 #
 # SPDX-License-Identifier: Apache-2.0
 
@@ -36,7 +36,7 @@ jobs:
                  (inputs.host-platform == 'win-64' && 'windows-2019') }}
     steps:
       - name: Checkout ${{ github.event.repository.name }}
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
         with:
           fetch-depth: 0
 
@@ -47,17 +47,16 @@ jobs:
         if: ${{ inputs.host-platform != 'win-64' }}
 
       - name: Set up Python
-        if: ${{ startsWith(inputs.host-platform, 'linux') }}
-        id: setup-python
-        uses: actions/setup-python@v5
+        id: setup-python1
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065  # v5.6.0
         with:
-          # WAR: setup-python is not relocatable...
+          # WAR: setup-python is not relocatable, and cibuildwheel hard-wires to 3.12...
           # see https://github.com/actions/setup-python/issues/871
           python-version: "3.12"
 
       - name: Set up MSVC
         if: ${{ startsWith(inputs.host-platform, 'win') }}
-        uses: ilammy/msvc-dev-cmd@v1
+        uses: ilammy/msvc-dev-cmd@v1  # TODO: ask admin to allow pinning commits
 
       - name: Set environment variables
         run: |
@@ -76,12 +75,14 @@ jobs:
           echo "CUDA_CORE_ARTIFACT_BASENAME=${CUDA_CORE_ARTIFACT_BASENAME}" >> $GITHUB_ENV
           echo "CUDA_CORE_ARTIFACT_NAME=${CUDA_CORE_ARTIFACT_BASENAME}-${{ github.sha }}" >> $GITHUB_ENV
           echo "CUDA_CORE_ARTIFACTS_DIR=$(realpath "$REPO_DIR/cuda_core/dist")" >> $GITHUB_ENV
+          echo "CUDA_CORE_CYTHON_TESTS_DIR=$(realpath "$REPO_DIR/cuda_core/tests/cython")" >> $GITHUB_ENV
           CUDA_BINDINGS_ARTIFACT_BASENAME="cuda-bindings-python${PYTHON_VERSION_FORMATTED}-cuda${{ inputs.cuda-version }}-${{ inputs.host-platform }}"
           echo "CUDA_BINDINGS_ARTIFACT_BASENAME=${CUDA_BINDINGS_ARTIFACT_BASENAME}" >> $GITHUB_ENV
           echo "CUDA_BINDINGS_ARTIFACT_NAME=${CUDA_BINDINGS_ARTIFACT_BASENAME}-${{ github.sha }}" >> $GITHUB_ENV
           echo "CUDA_BINDINGS_ARTIFACTS_DIR=$(realpath "$REPO_DIR/cuda_bindings/dist")" >> $GITHUB_ENV
+          echo "CUDA_BINDINGS_CYTHON_TESTS_DIR=$(realpath "$REPO_DIR/cuda_bindings/tests/cython")" >> $GITHUB_ENV
           echo "CIBW_BUILD=${CIBW_BUILD}" >> $GITHUB_ENV
-      
+
       - name: Dump environment
         run: |
           env
@@ -112,7 +113,7 @@ jobs:
           twine check ${{ env.CUDA_CORE_ARTIFACTS_DIR }}/*.whl
 
       - name: Upload cuda.core build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02  # v4.6.2
         with:
           name: ${{ env.CUDA_CORE_ARTIFACT_NAME }}
           path: ${{ env.CUDA_CORE_ARTIFACTS_DIR }}/*.whl
@@ -159,7 +160,7 @@ jobs:
           twine check ${{ env.CUDA_BINDINGS_ARTIFACTS_DIR }}/*.whl
 
       - name: Upload cuda.bindings build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02  # v4.6.2
         with:
           name: ${{ env.CUDA_BINDINGS_ARTIFACT_NAME }}
           path: ${{ env.CUDA_BINDINGS_ARTIFACTS_DIR }}/*.whl
@@ -187,8 +188,52 @@ jobs:
 
       - name: Upload cuda-python build artifacts
         if: ${{ strategy.job-index == 0 && inputs.host-platform == 'linux-64' }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02  # v4.6.2
         with:
           name: cuda-python-wheel
           path: cuda_python/*.whl
           if-no-files-found: error
+
+      - name: Set up Python
+        id: setup-python2
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065  # v5.6.0
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Set up Python include paths
+        run: |
+          if [[ "${{ inputs.host-platform }}" == linux* ]]; then
+            echo "CPLUS_INCLUDE_PATH=${Python3_ROOT_DIR}/include/python${{ matrix.python-version }}" >> $GITHUB_ENV
+          elif [[ "${{ inputs.host-platform }}" == win* ]]; then
+            echo "CL=/I\"${Python3_ROOT_DIR}\include\python${{ matrix.python-version }}\"" >> $GITHUB_ENV
+          fi
+          # For caching
+          echo "PY_EXT_SUFFIX=$(python -c "import sysconfig; print(sysconfig.get_config_var('EXT_SUFFIX'))")" >> $GITHUB_ENV
+
+      - name: Build cuda.bindings Cython tests
+        run: |
+          pip install $(ls ${{ env.CUDA_BINDINGS_ARTIFACTS_DIR }}/*.whl)[test]
+          pushd ${{ env.CUDA_BINDINGS_CYTHON_TESTS_DIR }}
+          bash build_tests.sh
+          popd
+
+      - name: Upload cuda.bindings Cython tests
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02  # v4.6.2
+        with:
+          name: ${{ env.CUDA_BINDINGS_ARTIFACT_NAME }}-tests
+          path: ${{ env.CUDA_BINDINGS_CYTHON_TESTS_DIR }}/test_*${{ env.PY_EXT_SUFFIX }}
+          if-no-files-found: error
+
+      - name: Build cuda.core Cython tests
+        run: |
+          pip install $(ls ${{ env.CUDA_CORE_ARTIFACTS_DIR }}/*.whl)[test]
+          pushd ${{ env.CUDA_CORE_CYTHON_TESTS_DIR }}
+          bash build_tests.sh
+          popd
+
+      - name: Upload cuda.core Cython tests
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02  # v4.6.2
+        with:
+          name: ${{ env.CUDA_CORE_ARTIFACT_NAME }}-tests
+          path: ${{ env.CUDA_CORE_CYTHON_TESTS_DIR }}/test_*${{ env.PY_EXT_SUFFIX }}
+          if-no-files-found: error

.github/workflows/ci.yml

@@ -23,7 +23,7 @@ jobs:
       CUDA_BUILD_VER: ${{ steps.get-vars.outputs.cuda_build_ver }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
         with:
           fetch-depth: 0
       - name: Get CUDA build version
@@ -45,8 +45,7 @@ jobs:
     name: Build ${{ matrix.host-platform }}, CUDA ${{ needs.ci-vars.outputs.CUDA_BUILD_VER }}
     if: ${{ github.repository_owner == 'nvidia' }}
     secrets: inherit
-    uses:
-      ./.github/workflows/build-wheel.yml
+    uses: ./.github/workflows/build-wheel.yml
     with:
       host-platform: ${{ matrix.host-platform }}
       cuda-version: ${{ needs.ci-vars.outputs.CUDA_BUILD_VER }}
@@ -66,8 +65,7 @@ jobs:
       - ci-vars
       - build
     secrets: inherit
-    uses:
-      ./.github/workflows/test-wheel-linux.yml
+    uses: ./.github/workflows/test-wheel-linux.yml
     with:
       build-type: pull-request
       host-platform: ${{ matrix.host-platform }}
@@ -87,8 +85,7 @@ jobs:
       - ci-vars
       - build
     secrets: inherit
-    uses:
-      ./.github/workflows/test-wheel-windows.yml
+    uses: ./.github/workflows/test-wheel-windows.yml
     with:
       build-type: pull-request
       host-platform: ${{ matrix.host-platform }}
@@ -106,8 +103,7 @@ jobs:
       - ci-vars
       - build
     secrets: inherit
-    uses:
-      ./.github/workflows/build-docs.yml
+    uses: ./.github/workflows/build-docs.yml
     with:
       build-ctk-ver: ${{ needs.ci-vars.outputs.CUDA_BUILD_VER }}
 
@@ -121,5 +117,4 @@ jobs:
       - test-windows
       - doc
     secrets: inherit
-    uses:
-      ./.github/workflows/status-check.yml
+    uses: ./.github/workflows/status-check.yml

.github/workflows/codeql.yml

@@ -28,16 +28,16 @@ jobs:
           build-mode: none
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
 
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v3
+      uses: github/codeql-action/init@ff0a06e83cb2de871e5a09832bc6a81e7276941f  # v3.28.18
       with:
         languages: ${{ matrix.language }}
         build-mode: ${{ matrix.build-mode }}
         queries: security-extended
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v3
+      uses: github/codeql-action/analyze@ff0a06e83cb2de871e5a09832bc6a81e7276941f  # v3.28.18
       with:
         category: "/language:${{matrix.language}}"

.github/workflows/release-upload.yml

@@ -33,7 +33,7 @@ jobs:
       ARCHIVE_NAME: ${{ github.event.repository.name }}-${{ inputs.git-tag }}
     steps:
       - name: Checkout Source
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
         with:
           fetch-depth: 0
           ref: ${{ inputs.git-tag }}