From 1aa7279d475b7780bfab458a31577b4fe1e1cf0e Mon Sep 17 00:00:00 2001
From: Ludovic Henry <git@ludovic.dev>
Date: Mon, 7 Sep 2026 22:07:03 +0200
Subject: [PATCH] numpy-rms: add build-numpy-rms.yml for riscv64 wheels

Per-interpreter cibuildwheel build mirroring upstream's own build.yml,
narrowed to manylinux riscv64. numpy is pinned via PIP_ONLY_BINARY so
pip resolves our registry's riscv64 wheel instead of trying to build
numpy from source.
---
 .github/workflows/build-numpy-rms.yml | 106 ++++++++++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100644 .github/workflows/build-numpy-rms.yml

diff --git a/.github/workflows/build-numpy-rms.yml b/.github/workflows/build-numpy-rms.yml
new file mode 100644
index 000000000..09fb81b97
--- /dev/null
+++ b/.github/workflows/build-numpy-rms.yml
@@ -0,0 +1,106 @@
+# SPDX-FileCopyrightText: 2026 The RISE Project
+# SPDX-License-Identifier: MIT
+---
+# This workflow is based on: https://github.com/nomonosound/numpy-rms/blob/0.7.0/.github/workflows/build.yml
+name: Build numpy-rms wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'numpy-rms version to build (git tag, e.g. 0.7.0)'
+        required: true
+        default: '0.7.0'
+  pull_request:
+    paths:
+      - '.github/workflows/build-numpy-rms.yml'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ inputs.version || '0.7.0' }}-${{ 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 0.7.0 there.
+  NUMPY_RMS_VERSION: ${{ inputs.version || '0.7.0' }}
+  MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64
+
+jobs:
+  setup:
+    uses: $/.github/workflows/_setup.yml
+
+  build_wheels:
+    needs: [setup]
+    name: Build numpy-rms ${{ inputs.version || '0.7.0' }} ${{ matrix.python }}-manylinux_riscv64
+    runs-on: ubuntu-24.04-riscv
+    timeout-minutes: 60
+    strategy:
+      fail-fast: false
+      matrix:
+        # Per-interpreter (not abi3): the cffi API-mode extension links the
+        # version-specific ABI. Matches upstream's own published matrix exactly
+        # (cp310-cp314 plus cp314t; no cp313t is built there either).
+        python:
+          - "cp310"
+          - "cp311"
+          - "cp312"
+          - "cp313"
+          - "cp314"
+          - "cp314t"
+
+    steps:
+      - name: Checkout numpy-rms ${{ env.NUMPY_RMS_VERSION }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: nomonosound/numpy-rms
+          ref: ${{ env.NUMPY_RMS_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: ${{ env.MANYLINUX_RISCV64_IMAGE }}
+          # numpy is a hard build/test requirement; only our registry has it for
+          # riscv64, and only-binary keeps a newer PyPI sdist-only release from
+          # winning the resolution and trying (and hanging) to build from source.
+          # setuptools_scm can't see the tag from this shallow checkout, so the
+          # version has to be pinned explicitly (gotcha 3).
+          CIBW_ENVIRONMENT: >-
+            PIP_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
+            PIP_ONLY_BINARY=numpy
+            SETUPTOOLS_SCM_PRETEND_VERSION_FOR_NUMPY_RMS=${{ env.NUMPY_RMS_VERSION }}
+          CIBW_TEST_REQUIRES: cffi pytest pytest-benchmark
+          CIBW_TEST_COMMAND: pytest {project}/tests --durations=0
+
+      - name: Check wheel contents
+        run: |
+          python3 - wheelhouse/*.whl <<'EOF'
+          import sys, zipfile
+          names = zipfile.ZipFile(sys.argv[1]).namelist()
+          exts = {n.split("/")[-1].split(".")[0] for n in names if n.endswith(".so")}
+          assert exts == {"_numpy_rms"}, exts
+          licences = {n.rsplit("/", 1)[-1] for n in names if ".dist-info/licenses/" in n and not n.endswith("/")}
+          assert licences == {"LICENSE"}, licences
+          EOF
+
+      - name: Store wheels
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: numpy-rms-${{ env.NUMPY_RMS_VERSION }}-${{ matrix.python }}-manylinux_riscv64
+          path: ./wheelhouse/*.whl
+          if-no-files-found: error
+
+  publish:
+    name: Publish numpy-rms ${{ inputs.version || '0.7.0' }}
+    needs: [setup, build_wheels]
+    permissions:
+      contents: write
+      pull-requests: write
+    uses: $/.github/workflows/_publish-wheel.yml
+    with:
+      artifact-pattern: numpy-rms-${{ inputs.version || '0.7.0' }}-*-manylinux_riscv64