persistent: add build-persistent.yml for riscv64 wheels

.github/workflows/build-persistent.yml

@@ -0,0 +1,91 @@
+# SPDX-FileCopyrightText: 2026 The RISE Project
+# SPDX-License-Identifier: MIT
+---
+# This workflow is based on: https://github.com/zopefoundation/persistent/blob/6.8/.github/workflows/tests.yml
+name: Build persistent wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'persistent version to build (git tag, e.g. 6.8)'
+        required: true
+        default: '6.8'
+  pull_request:
+    paths:
+      - '.github/workflows/build-persistent.yml'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ inputs.version || '6.8' }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read  # to fetch code (actions/checkout)
+
+env:
+  PERSISTENT_VERSION: ${{ inputs.version || '6.8' }}
+  MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64
+
+jobs:
+  setup:
+    uses: $/.github/workflows/_setup.yml
+
+  build_wheels:
+    needs: [setup]
+    name: Build persistent ${{ inputs.version || '6.8' }} ${{ matrix.python }}-manylinux_riscv64
+    runs-on: ubuntu-24.04-riscv
+    timeout-minutes: 60
+    strategy:
+      fail-fast: false
+      matrix:
+        python:
+          - "cp312"
+          - "cp313"
+          - "cp314"
+          - "cp314t"
+
+    steps:
+      - name: Checkout persistent ${{ env.PERSISTENT_VERSION }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: zopefoundation/persistent
+          ref: ${{ env.PERSISTENT_VERSION }}
+          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: ${{ env.MANYLINUX_RISCV64_IMAGE }}
+          # cffi and zope.interface, needed to build and to import the extension,
+          # have no riscv64 wheel on public PyPI.
+          CIBW_ENVIRONMENT: PIP_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
+          CIBW_TEST_EXTRAS: test
+          CIBW_TEST_ENVIRONMENT: ZOPE_INTERFACE_STRICT_IRO=1
+          # Upstream's two test steps (with and without the C extensions).
+          # setup.py swallows extension build failures (optional_build_ext), so
+          # PURE_PYTHON=0 — which makes the C import mandatory at runtime — is
+          # what proves the wheel is not pure Python. test_docs walks up from
+          # the installed (not checked-out) module to find docs/api/*.rst,
+          # which the wheel doesn't ship, so it is excluded.
+          CIBW_TEST_COMMAND: >-
+            PURE_PYTHON=0 python -m zope.testrunner --test-path={package}/src -m '!test_docs' &&
+            PURE_PYTHON=1 python -m zope.testrunner --test-path={package}/src -m '!test_docs'
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: persistent-${{ env.PERSISTENT_VERSION }}-${{ matrix.python }}-manylinux_riscv64
+          path: wheelhouse/*.whl
+          if-no-files-found: error
+
+  publish:
+    name: Publish persistent ${{ inputs.version || '6.8' }}
+    needs: [setup, build_wheels]
+    permissions:
+      contents: write
+      pull-requests: write
+    uses: $/.github/workflows/_publish-wheel.yml
+    with:
+      artifact-pattern: persistent-${{ inputs.version || '6.8' }}-*-manylinux_riscv64