From 86f6ddbd7a248884eee67cf095315680c744bcd1 Mon Sep 17 00:00:00 2001
From: Ludovic Henry <git@ludovic.dev>
Date: Thu, 15 Oct 2026 23:03:15 +0000
Subject: [PATCH] Add pycifrw riscv64 wheel build

PyCifRW (CifFile) is a CIF/STAR crystallography file parser with a small
compiled C extension (CifFile.StarScan, built from src/lib/lex.yy.c and
src/lib/py_star_scan.c). No riscv64 wheel on PyPI. Build-from-checkout
cibuildwheel job at tag v5.0.1, matching upstream's plain setuptools
Extension build; runtime deps (prettytable, ply, numpy) all resolve on
riscv64 via pypi.riseproject.dev.
---
 .github/workflows/build-pycifrw.yml | 98 +++++++++++++++++++++++++++++
 docs/packages/pycifrw.yaml          |  5 ++
 2 files changed, 103 insertions(+)
 create mode 100644 .github/workflows/build-pycifrw.yml
 create mode 100644 docs/packages/pycifrw.yaml

diff --git a/.github/workflows/build-pycifrw.yml b/.github/workflows/build-pycifrw.yml
new file mode 100644
index 000000000000..cc4d5046aafd
--- /dev/null
+++ b/.github/workflows/build-pycifrw.yml
@@ -0,0 +1,98 @@
+# SPDX-FileCopyrightText: 2026 The RISE Project
+# SPDX-License-Identifier: MIT
+---
+name: Build pycifrw wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version glob to (re)build; empty builds every version of docs/packages/pycifrw.yaml not released yet'
+        required: false
+        default: ''
+  pull_request:
+    branches: [main]
+    paths:
+      - '.github/workflows/build-pycifrw.yml'
+      - 'docs/packages/pycifrw.yaml'
+  push:
+    branches: [main]
+    paths:
+      - '.github/workflows/build-pycifrw.yml'
+      - 'docs/packages/pycifrw.yaml'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read  # to fetch code (actions/checkout)
+
+env:
+  MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64
+
+jobs:
+  setup:
+    uses: $/.github/workflows/_setup.yml
+    with:
+      package: pycifrw
+      version: ${{ inputs.version }}
+
+  build_wheels:
+    needs: [setup]
+    if: needs.setup.outputs.versions != '[]'
+    name: Build pycifrw ${{ matrix.version }} ${{ matrix.python }}-manylinux_riscv64
+    runs-on: ubuntu-24.04-riscv
+    timeout-minutes: 60
+    strategy:
+      fail-fast: false
+      matrix:
+        version: ${{ fromJSON(needs.setup.outputs.versions) }}
+        # Per-interpreter: the StarScan C extension links the version-specific ABI.
+        python: ["cp312", "cp313", "cp314", "cp314t"]
+
+    env:
+      PYCIFRW_VERSION: ${{ matrix.version }}
+
+    steps:
+      - name: Checkout PyCIFRW v${{ env.PYCIFRW_VERSION }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: jamesrhester/pycifrw
+          ref: v${{ env.PYCIFRW_VERSION }}
+          persist-credentials: false
+
+      - name: Build and test wheel
+        uses: pypa/cibuildwheel@1828c10ab37f080699c7b81cea34097c684a7074  # v4.2.0
+        with:
+          output-dir: wheelhouse/
+          only: ${{ matrix.python }}-manylinux_riscv64
+        env:
+          CIBW_MANYLINUX_RISCV64_IMAGE: ${{ env.MANYLINUX_RISCV64_IMAGE }}
+          CIBW_ENVIRONMENT: >-
+            PIP_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
+            PIP_ONLY_BINARY=numpy
+          CIBW_TEST_COMMAND: python {project}/TestPyCIFRW.py
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: pycifrw-${{ env.PYCIFRW_VERSION }}-${{ matrix.python }}-manylinux_riscv64
+          path: wheelhouse/*.whl
+          if-no-files-found: error
+
+  publish:
+    name: Publish pycifrw ${{ matrix.version }}
+    needs: [setup, build_wheels]
+    if: needs.setup.outputs.versions != '[]'
+    strategy:
+      fail-fast: false
+      matrix:
+        version: ${{ fromJSON(needs.setup.outputs.versions) }}
+    permissions:
+      contents: write
+      pull-requests: write
+    uses: $/.github/workflows/_publish-wheel.yml
+    secrets:
+      app-private-key: ${{ secrets.RISEPROJECT_APP_PRIVATE_KEY }}
+    with:
+      artifact-pattern: pycifrw-${{ matrix.version }}-*-manylinux_riscv64
diff --git a/docs/packages/pycifrw.yaml b/docs/packages/pycifrw.yaml
new file mode 100644
index 000000000000..325bf61f2ddc
--- /dev/null
+++ b/docs/packages/pycifrw.yaml
@@ -0,0 +1,5 @@
+package-name: pycifrw
+source-code: https://github.com/jamesrhester/pycifrw
+license: PSF-2.0
+versions:
+- version: 5.0.1