Add lark-cython build workflow

.github/workflows/build-lark-cython.yml

@@ -0,0 +1,116 @@
+# SPDX-FileCopyrightText: 2026 The RISE Project
+# SPDX-License-Identifier: MIT
+---
+# This workflow is based on the `build_binary_wheels` job of
+# https://github.com/lark-parser/lark_cython/blob/0.0.17/.github/workflows/tests.yml
+name: Build lark-cython wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version glob to (re)build; empty builds every version of docs/packages/lark-cython.yaml not released yet'
+        required: false
+        default: ''
+  pull_request:
+    branches: [main]
+    paths:
+      - '.github/workflows/build-lark-cython.yml'
+      - 'docs/packages/lark-cython.yaml'
+  push:
+    branches: [main]
+    paths:
+      - '.github/workflows/build-lark-cython.yml'
+      - 'docs/packages/lark-cython.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: lark-cython
+      version: ${{ inputs.version }}
+
+  build_wheels:
+    needs: [setup]
+    if: needs.setup.outputs.versions != '[]'
+    name: Build lark-cython ${{ matrix.version }} ${{ matrix.python }}-manylinux_riscv64
+    runs-on: ubuntu-24.04-riscv
+    strategy:
+      fail-fast: false
+      matrix:
+        version: ${{ fromJSON(needs.setup.outputs.versions) }}
+        # Per-interpreter (not abi3): a plain cythonize() build links the
+        # version-specific ABI. Capped at cp313 to match upstream's own
+        # cibuildwheel `build` glob (p38..p313) -- Cython>=3.0,<3.1 (upstream's
+        # own pin) has no free-threaded (cp314t) support and wasn't exercised
+        # against cp314 upstream either.
+        python:
+          - "cp312"
+          - "cp313"
+
+    env:
+      LARK_CYTHON_VERSION: ${{ matrix.version }}
+
+    steps:
+      - name: Checkout lark-cython ${{ env.LARK_CYTHON_VERSION }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: lark-parser/lark_cython
+          ref: ${{ env.LARK_CYTHON_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: ${{ env.MANYLINUX_RISCV64_IMAGE }}
+          CIBW_TEST_REQUIRES: pytest
+          CIBW_TEST_COMMAND: >-
+            python -c "import lark_cython; assert lark_cython.__file__" &&
+            python -m pytest {project}
+
+      - name: Check wheel contents
+        run: |
+          python3 - wheelhouse/*.whl <<'EOF'
+          import sys, zipfile
+          names = zipfile.ZipFile(sys.argv[1]).namelist()
+          assert any(n.endswith(".so") for n in names), names
+          licences = {n.rsplit("/", 1)[-1] for n in names if ".dist-info/licenses/" in n} - {""}
+          assert licences == {"LICENSE"}, licences
+          EOF
+
+      - name: Store wheels
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: lark-cython-${{ env.LARK_CYTHON_VERSION }}-${{ matrix.python }}-manylinux_riscv64
+          path: ./wheelhouse/*.whl
+          if-no-files-found: error
+
+  publish:
+    name: Publish lark-cython ${{ 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: ${{ secrets.RISEPROJECT_APP_PRIVATE_KEY }}
+    with:
+      artifact-pattern: lark-cython-${{ matrix.version }}-*-manylinux_riscv64

docs/packages/lark-cython.yaml

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+package-name: lark-cython
+source-code: https://github.com/lark-parser/lark_cython
+license: MIT
+versions:
+- version: 0.0.17