gnureadline: add build-gnureadline.yml for riscv64 wheels

.github/workflows/build-gnureadline.yml

@@ -0,0 +1,114 @@
+# SPDX-FileCopyrightText: 2026 The RISE Project
+# SPDX-License-Identifier: MIT
+---
+# This workflow is based on:
+# https://github.com/ludwigschwardt/python-gnureadline/blob/v8.3.3/.github/workflows/wheels.yaml
+name: Build gnureadline wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'gnureadline version to build (git tag without leading v, e.g. 8.3.3)'
+        required: true
+        default: '8.3.3'
+  pull_request:
+    paths:
+      - '.github/workflows/build-gnureadline.yml'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ inputs.version || '8.3.3' }}-${{ 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 8.3.3 there.
+  GNUREADLINE_VERSION: ${{ inputs.version || '8.3.3' }}
+  MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64
+
+jobs:
+  setup:
+    uses: $/.github/workflows/_setup.yml
+
+  build_wheels:
+    needs: [setup]
+    name: Build gnureadline ${{ inputs.version || '8.3.3' }} ${{ matrix.python }}-manylinux_riscv64
+    runs-on: ubuntu-24.04-riscv
+    timeout-minutes: 60
+    strategy:
+      fail-fast: false
+      matrix:
+        # Per-interpreter (not abi3): the extension links the version-specific ABI.
+        python:
+          - "cp312"
+          - "cp313"
+          - "cp314"
+          - "cp314t"
+
+    steps:
+      - name: Checkout gnureadline v${{ env.GNUREADLINE_VERSION }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: ludwigschwardt/python-gnureadline
+          ref: v${{ env.GNUREADLINE_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: ${{ env.MANYLINUX_RISCV64_IMAGE }}
+          # Matches upstream's own wheels.yaml test override (its pyproject.toml
+          # default of a full pytest run is for local/tox use).
+          CIBW_TEST_REQUIRES: ""
+          CIBW_TEST_COMMAND: python -c "import gnureadline"
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: gnureadline-${{ env.GNUREADLINE_VERSION }}-${{ matrix.python }}-manylinux_riscv64
+          path: wheelhouse/*.whl
+          if-no-files-found: error
+
+  gpl_sources:
+    needs: [setup]
+    name: Collect GPL sources (readline) for gnureadline ${{ inputs.version || '8.3.3' }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout gnureadline v${{ env.GNUREADLINE_VERSION }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: ludwigschwardt/python-gnureadline
+          ref: v${{ env.GNUREADLINE_VERSION }}
+          persist-credentials: false
+
+      # gnureadline statically links a real GNU readline it builds itself from
+      # source (that's the whole point of the package - see rl/build.sh) rather
+      # than a system/manylinux-image readline, so unlike gotcha 66's gcc/libgomp
+      # case the GPL source lives in the checkout, not the build image: archive
+      # rl/ verbatim (the readline tarball, its official patches, and the build
+      # script that applies and configures them - all "Corresponding Source"
+      # under GPLv3 6.).
+      - name: Archive readline source
+        run: tar -cf gpl-sources.tar rl
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: gnureadline-${{ env.GNUREADLINE_VERSION }}-gpl-sources
+          path: gpl-sources.tar
+          if-no-files-found: error
+
+  publish:
+    name: Publish gnureadline ${{ inputs.version || '8.3.3' }}
+    needs: [setup, build_wheels, gpl_sources]
+    permissions:
+      contents: write
+      pull-requests: write
+    uses: $/.github/workflows/_publish-wheel.yml
+    with:
+      artifact-pattern: gnureadline-${{ inputs.version || '8.3.3' }}-*-manylinux_riscv64
+      gpl-sources-artifact: gnureadline-${{ inputs.version || '8.3.3' }}-gpl-sources
+      gpl-sources-description: GNU readline (statically linked; see rl/build.sh)