duckdb: add build-duckdb.yml for riscv64 wheels

.github/workflows/build-duckdb.yml

@@ -0,0 +1,109 @@
+# SPDX-FileCopyrightText: 2026 The RISE Project
+# SPDX-License-Identifier: MIT
+---
+# This workflow is based on: https://github.com/duckdb/duckdb-python/blob/v1.5.5/.github/workflows/packaging_wheels.yml
+name: Build duckdb wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'duckdb version to build (git tag without the leading v, e.g. 1.5.5)'
+        required: true
+        default: '1.5.5'
+  pull_request:
+    paths:
+      - '.github/workflows/build-duckdb.yml'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ inputs.version || '1.5.5' }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read  # to fetch code (actions/checkout)
+
+env:
+  # `inputs.version` is empty on pull_request events; default to 1.5.5 there.
+  DUCKDB_VERSION: ${{ inputs.version || '1.5.5' }}
+  MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64
+
+jobs:
+  build_wheels:
+    name: Build duckdb ${{ inputs.version || '1.5.5' }} ${{ matrix.python }}-manylinux_riscv64
+    runs-on: ubuntu-24.04-riscv
+    timeout-minutes: 1440
+    strategy:
+      fail-fast: false
+      matrix:
+        # Upstream publishes no free-threaded wheel.
+        python: ["cp312", "cp313", "cp314"]
+
+    steps:
+      - name: Checkout duckdb-python v${{ env.DUCKDB_VERSION }}
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
+        with:
+          repository: duckdb/duckdb-python
+          ref: v${{ env.DUCKDB_VERSION }}
+          submodules: true
+          persist-credentials: false
+
+      - name: Build wheels
+        uses: pypa/cibuildwheel@1828c10ab37f080699c7b81cea34097c684a7074  # v4.2.0
+        with:
+          output-dir: wheelhouse/
+          only: ${{ matrix.python }}-manylinux_riscv64
+        env:
+          CIBW_MANYLINUX_RISCV64_IMAGE: ${{ env.MANYLINUX_RISCV64_IMAGE }}
+          # Upstream's build[uv] frontend crashes cibuildwheel's audit step here (no host uv).
+          CIBW_BUILD_FRONTEND: build
+          # Clears upstream's `yum install -y ccache`: ccache is EPEL-only, and the riscv64 manylinux image has no EPEL.
+          CIBW_BEFORE_BUILD: ''
+          # Upstream's release job pins the version the same way (packaging.yml set-version).
+          CIBW_ENVIRONMENT: >-
+            OVERRIDE_GIT_DESCRIBE=v${{ env.DUCKDB_VERSION }}
+            PIP_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
+          # Test phase only, so it can't starve the build backend (gotcha 12).
+          CIBW_TEST_ENVIRONMENT: 'PIP_ONLY_BINARY=:all:'
+          CIBW_TEST_SOURCES: tests
+          # Upstream's test group minus deps with no riscv64 wheel; their tests are importorskip-guarded.
+          CIBW_TEST_REQUIRES: >-
+            pytest pytest-reraise pytest-timeout pytest-timestamper packaging psutil
+            pytz requests typing-extensions urllib3 fsspec numpy pandas==3.0.3
+          # Upstream's `testsuite: fast` invocation (tests/slow needs network fixtures).
+          CIBW_TEST_COMMAND: >-
+            python -c "import _duckdb; assert _duckdb.__file__.endswith('.so'), _duckdb.__file__" &&
+            python -m pytest --confcutdir=. --rootdir . -c {project}/pyproject.toml ./tests/fast
+
+      - name: Check the extension module made it into the wheel
+        run: |
+          python3 - wheelhouse/*.whl <<'EOF'
+          import sys, zipfile
+          for whl in sys.argv[1:]:
+              names = zipfile.ZipFile(whl).namelist()
+              assert any(n.endswith(".so") for n in names), f"no compiled extension in {whl}"
+              print(whl, "ok")
+          EOF
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: duckdb-${{ env.DUCKDB_VERSION }}-${{ matrix.python }}-manylinux_riscv64
+          path: wheelhouse/*.whl
+          if-no-files-found: error
+
+  publish:
+    name: Publish duckdb ${{ inputs.version || '1.5.5' }} to GitLab
+    needs: [build_wheels]
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
+
+    steps:
+      - name: Publish wheels and open docs PR
+        uses: riseproject-dev/python-wheels/actions/publish-wheels@main
+        with:
+          artifact-pattern: duckdb-${{ env.DUCKDB_VERSION }}-*-manylinux_riscv64
+          gitlab-username: ${{ vars.GITLAB_DEPLOY_USER }}
+          gitlab-token: ${{ secrets.GITLAB_DEPLOY_TOKEN }}
+          gitlab-project-id: ${{ vars.GITLAB_PROJECT_ID }}
+          gh-token: ${{ secrets.GITHUB_TOKEN }}