From 44086e06410599d2938e9718468647e6aa249a93 Mon Sep 17 00:00:00 2001
From: Ludovic Henry <git@ludovic.dev>
Date: Mon, 7 Sep 2026 16:39:08 +0200
Subject: [PATCH] mapbox-earcut: add build-mapbox-earcut.yml for riscv64 wheels

---
 .github/workflows/build-mapbox-earcut.yml | 82 +++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 .github/workflows/build-mapbox-earcut.yml

diff --git a/.github/workflows/build-mapbox-earcut.yml b/.github/workflows/build-mapbox-earcut.yml
new file mode 100644
index 000000000..ae798f377
--- /dev/null
+++ b/.github/workflows/build-mapbox-earcut.yml
@@ -0,0 +1,82 @@
+# SPDX-FileCopyrightText: 2026 The RISE Project
+# SPDX-License-Identifier: MIT
+---
+# This workflow is based on the `build_wheels` job of
+# https://github.com/skogler/mapbox_earcut_python/blob/v2.0.0/.github/workflows/build.yml
+name: Build mapbox-earcut wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'mapbox-earcut version to build (git tag without the leading v, e.g. 2.0.0)'
+        required: true
+        default: '2.0.0'
+  pull_request:
+    paths:
+      - '.github/workflows/build-mapbox-earcut.yml'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ inputs.version || '2.0.0' }}-${{ 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 2.0.0 there.
+  MAPBOX_EARCUT_VERSION: ${{ inputs.version || '2.0.0' }}
+  MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64
+
+jobs:
+  setup:
+    uses: $/.github/workflows/_setup.yml
+
+  build_wheels:
+    needs: [setup]
+    name: Build mapbox-earcut ${{ inputs.version || '2.0.0' }} ${{ matrix.python }}-manylinux_riscv64
+    runs-on: ubuntu-24.04-riscv
+    timeout-minutes: 90
+    strategy:
+      fail-fast: false
+      matrix:
+        # numpy (a hard runtime dependency) has no musllinux riscv64 wheel on our
+        # registry, which settles musllinux on its own; manylinux only.
+        python: ["cp312", "cp313", "cp314", "cp314t"]
+
+    steps:
+      - name: Checkout mapbox_earcut_python v${{ env.MAPBOX_EARCUT_VERSION }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: skogler/mapbox_earcut_python
+          ref: v${{ env.MAPBOX_EARCUT_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: ${{ env.MANYLINUX_RISCV64_IMAGE }}
+          CIBW_ENVIRONMENT: PIP_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
+          # numpy has no riscv64 wheel on public PyPI; keep pip on our registry's copy.
+          CIBW_TEST_ENVIRONMENT: PIP_ONLY_BINARY=numpy
+          CIBW_TEST_REQUIRES: pytest
+          CIBW_TEST_COMMAND: pytest {package}/tests
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: mapbox-earcut-${{ env.MAPBOX_EARCUT_VERSION }}-${{ matrix.python }}-manylinux_riscv64
+          path: wheelhouse/*.whl
+          if-no-files-found: error
+
+  publish:
+    name: Publish mapbox-earcut ${{ inputs.version || '2.0.0' }}
+    needs: [setup, build_wheels]
+    permissions:
+      contents: write
+      pull-requests: write
+    uses: $/.github/workflows/_publish-wheel.yml
+    with:
+      artifact-pattern: mapbox-earcut-${{ inputs.version || '2.0.0' }}-*-manylinux_riscv64