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luhenry merged 2 commits into from
Sep 12, 2026
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opentsne: add build-opentsne.yml for riscv64 wheels #1789

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adc5fda
opentsne: add build-opentsne.yml for riscv64 wheels
luhenry Sep 11, 2026
1d8a9e4
opentsne: fix pytest import shadowing via CIBW_TEST_SOURCES
luhenry Sep 11, 2026
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135 changes: 135 additions & 0 deletions .github/workflows/build-opentsne.yml
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# SPDX-FileCopyrightText: 2026 The RISE Project
# SPDX-License-Identifier: MIT
---
# This workflow is based on: https://github.com/pavlin-policar/openTSNE/blob/v1.0.4/azure-pipelines-release.yml
name: Build opentsne wheels (riscv64)

on:
workflow_dispatch:
inputs:
version:
description: 'openTSNE version to build (git tag without leading v, e.g. 1.0.4)'
required: true
default: '1.0.4'
pull_request:
paths:
- '.github/workflows/build-opentsne.yml'
- 'patches/opentsne/**'

concurrency:
group: ${{ github.workflow }}-${{ inputs.version || '1.0.4' }}-${{ 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 1.0.4 there.
OPENTSNE_VERSION: ${{ inputs.version || '1.0.4' }}
MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64

jobs:
setup:
uses: $/.github/workflows/_setup.yml

build_wheels:
needs: [setup]
name: Build opentsne ${{ inputs.version || '1.0.4' }} ${{ matrix.python }}-manylinux_riscv64
runs-on: ubuntu-24.04-riscv
timeout-minutes: 90
strategy:
fail-fast: false
matrix:
# Per-interpreter (not abi3): the Cython/C++ extensions link the
# version-specific ABI.
python:
- "cp312"
- "cp313"
- "cp314"
- "cp314t"

steps:
- name: Checkout openTSNE v${{ env.OPENTSNE_VERSION }}
uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
with:
repository: pavlin-policar/openTSNE
ref: v${{ env.OPENTSNE_VERSION }}
persist-credentials: false

- name: Checkout python-wheels
uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
with:
path: python-wheels
persist-credentials: false

- name: Patch openTSNE source
run: git apply python-wheels/patches/opentsne/${{ env.OPENTSNE_VERSION }}/*.patch

- 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 }}
# setup.py's has_c_library("fftw3") probe finds no FFTW3 headers in the
# manylinux image (upstream's own Linux release job doesn't install them
# either, per azure-pipelines-release.yml's CIBW_BUILD step), so this
# falls back to the numpy FFT implementation, same as upstream's own
# manylinux wheels.
CIBW_ENVIRONMENT: >-
PIP_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
PIP_ONLY_BINARY=numpy,scipy,scikit-learn
# Mirrors upstream's own pytest invocation (azure-pipelines-release.yml).
# hnswlib/pynndescent are optional extras with no riscv64 wheels on our
# registry; their tests self-skip via unittest.skipIf when not installed.
# test-sources (gotcha 25): the openTSNE package sits at the repo root
# next to tests/, so running pytest from {project} shadows the installed
# wheel with the uncompiled source tree; stage just tests/ + pyproject.toml
# into an empty cwd instead.
CIBW_TEST_REQUIRES: pytest
CIBW_TEST_SOURCES: tests pyproject.toml
CIBW_TEST_COMMAND: pytest -v tests

- uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
with:
name: opentsne-${{ env.OPENTSNE_VERSION }}-${{ matrix.python }}-manylinux_riscv64
path: wheelhouse/*.whl
if-no-files-found: error

gpl_sources:
needs: [setup]
name: Collect GPL sources
runs-on: ubuntu-24.04-riscv

steps:
- name: Checkout python-wheels
uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
with:
persist-credentials: false

# setup.py adds -fopenmp to every extension when has_c_library("omp"), so
# auditwheel vendors the image's libgomp into opentsne.libs/.
- uses: ./actions/collect-gpl-sources
with:
image: ${{ env.MANYLINUX_RISCV64_IMAGE }}
packages: gcc
output: gpl-sources.tar

- uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
with:
name: opentsne-${{ env.OPENTSNE_VERSION }}-gpl-sources
path: gpl-sources.tar
if-no-files-found: error

publish:
name: Publish opentsne ${{ inputs.version || '1.0.4' }}
needs: [setup, build_wheels, gpl_sources]
permissions:
contents: write
pull-requests: write
uses: $/.github/workflows/_publish-wheel.yml
with:
artifact-pattern: opentsne-${{ inputs.version || '1.0.4' }}-*-manylinux_riscv64
gpl-sources-artifact: opentsne-${{ inputs.version || '1.0.4' }}-gpl-sources
gpl-sources-description: gcc
246 changes: 246 additions & 0 deletions patches/opentsne/1.0.4/0001-ship-annoy-s-Apache-2.0-LICENSE-in-the-wheel-s-dist-.patch
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From b1407121bdbb216a417125193ef6a4eedfce9084 Mon Sep 17 00:00:00 2001
From: Ludovic Henry <git@ludovic.dev>
Date: Fri, 11 Sep 2026 16:39:27 +0200
Subject: [PATCH] ship annoy's Apache-2.0 LICENSE in the wheel's dist-info

setup.py compiles openTSNE/dependencies/annoy/annoymodule.cc against the
vendored annoylib.h/kissrandom.h/mman.h into openTSNE.dependencies.annoy.annoylib
for the approximate nearest-neighbour search. Those headers are
spotify/annoy (Copyright (c) 2013 Spotify AB), Apache-2.0, and each file
carries the notice only as a comment pointing at the License; no LICENSE
file for annoy is vendored alongside them.

setup.py has no license_files= override, so setuptools' default
LICEN[CS]E*/COPYING*/NOTICE*/AUTHORS* root glob is what ships the
project's own LICENSE; it never reaches into
openTSNE/dependencies/annoy/. Reproduced against the real
opentsne-1.0.4-cp312-cp312-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl
from PyPI, dist-info/licenses/ carries only openTSNE's own BSD-3-Clause
LICENSE -- annoy's notice is compiled straight into the extension and
shipped with no attribution at all.

Adding the license text at the project root as LICENSE.annoy is picked
up by that same default glob with no packaging change, landing it in
dist-info/licenses/ alongside the project's own. The copyright line
reproduces the notice the vendored headers actually carry (Copyright
(c) 2013 Spotify AB), not spotify/annoy's current LICENSE (Copyright
2021 (c) Spotify and its affiliates) -- the vendored copy predates that
update.

Upstream-Status: To upstream [not filed against pavlin-policar/openTSNE from this automated port; a maintainer should report it upstream]
---
LICENSE.annoy | 202 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 202 insertions(+)
create mode 100644 LICENSE.annoy

diff --git a/LICENSE.annoy b/LICENSE.annoy
new file mode 100644
index 0000000..a505770
--- /dev/null
+++ b/LICENSE.annoy
@@ -0,0 +1,202 @@
+
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