From f36b47331251977d241ac1f872238753b84a44ea Mon Sep 17 00:00:00 2001 From: Ludovic Henry Date: Mon, 7 Sep 2026 19:35:44 +0200 Subject: [PATCH 1/2] vtracer: add build-vtracer.yml for riscv64 wheels Rust/PyO3 (maturin) raster-to-vector tracer. pyo3 0.19.2, no abi3 feature, so the matrix builds per interpreter (cp312, cp313, cp314); cp314t is dropped since this pyo3 predates Py_GIL_DISABLED entirely and upstream ships no cp314t wheel either. No Python test suite upstream, so CIBW_TEST_COMMAND traces a small synthetic raster and checks the SVG actually contains a path. --- .github/workflows/build-vtracer.yml | 97 +++++++++++++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 .github/workflows/build-vtracer.yml diff --git a/.github/workflows/build-vtracer.yml b/.github/workflows/build-vtracer.yml new file mode 100644 index 000000000..ec9818a32 --- /dev/null +++ b/.github/workflows/build-vtracer.yml @@ -0,0 +1,97 @@ +# SPDX-FileCopyrightText: 2026 The RISE Project +# SPDX-License-Identifier: MIT +--- +# This workflow is based on the `linux` job of +# https://github.com/visioncortex/vtracer/blob/0.6.15/.github/workflows/python.yml +name: Build vtracer wheels (riscv64) + +on: + workflow_dispatch: + inputs: + version: + description: 'vtracer version to build (git tag, e.g. 0.6.15)' + required: true + default: '0.6.15' + pull_request: + paths: + - '.github/workflows/build-vtracer.yml' + +concurrency: + group: ${{ github.workflow }}-${{ inputs.version || '0.6.15' }}-${{ 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 0.6.15 there. + VTRACER_VERSION: ${{ inputs.version || '0.6.15' }} + MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64 + +jobs: + setup: + uses: $/.github/workflows/_setup.yml + + build_wheels: + needs: [setup] + name: Build vtracer ${{ inputs.version || '0.6.15' }} ${{ matrix.python }}-manylinux_riscv64 + runs-on: ubuntu-24.04-riscv + timeout-minutes: 60 + strategy: + fail-fast: false + matrix: + # pyo3 0.19.2, no abi3 feature, so every interpreter needs its own + # build. cp314t is dropped: this pyo3 predates Py_GIL_DISABLED + # entirely (gotcha 306), and upstream ships no cp314t wheel either. + python: ["cp312", "cp313", "cp314"] + + steps: + - name: Checkout vtracer ${{ env.VTRACER_VERSION }} + uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1 + with: + repository: visioncortex/vtracer + ref: ${{ env.VTRACER_VERSION }} + persist-credentials: false + + - name: Build and test wheel + uses: pypa/cibuildwheel@1828c10ab37f080699c7b81cea34097c684a7074 # v4.2.0 + with: + package-dir: cmdapp + output-dir: wheelhouse/ + env: + CIBW_BUILD: ${{ matrix.python }}-manylinux_riscv64 + CIBW_MANYLINUX_RISCV64_IMAGE: ${{ env.MANYLINUX_RISCV64_IMAGE }} + # vtracer's pyproject.toml carries no [tool.cibuildwheel], so the + # Rust toolchain its maturin backend needs is installed in-container + # here. + CIBW_BEFORE_ALL_LINUX: >- + curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y + CIBW_ENVIRONMENT_LINUX: PATH="$PATH:$HOME/.cargo/bin" + # Upstream ships no Python test suite at all. Exercise the + # extension for real instead: convert a small two-colour raster to + # SVG and check it actually traced a path, not just the README's + # bare import. + CIBW_TEST_COMMAND: >- + python -c "import vtracer.vtracer as ext, vtracer; + assert ext.__file__.endswith('.so'), ext.__file__; + w, h = 10, 10; + pixels = [(255, 0, 0, 255) if x < w // 2 else (0, 0, 255, 255) for y in range(h) for x in range(w)]; + svg = vtracer.convert_pixels_to_svg(pixels, (w, h)); + assert isinstance(svg, str) and ' Date: Mon, 7 Sep 2026 20:03:10 +0200 Subject: [PATCH 2/2] vtracer: drop cp314 from the matrix (gotcha 322) pyo3 0.19.2 predates CPython 3.14's changed Unicode object layout; convert_pixels_to_svg crossing a string back through FFI SIGSEGVs on cp314 (confirmed by CI, PR #1435). Same signature and same pyo3 version as the markdown-it-pyrs port. --- .github/workflows/build-vtracer.yml | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/.github/workflows/build-vtracer.yml b/.github/workflows/build-vtracer.yml index ec9818a32..0925401f2 100644 --- a/.github/workflows/build-vtracer.yml +++ b/.github/workflows/build-vtracer.yml @@ -41,9 +41,11 @@ jobs: fail-fast: false matrix: # pyo3 0.19.2, no abi3 feature, so every interpreter needs its own - # build. cp314t is dropped: this pyo3 predates Py_GIL_DISABLED - # entirely (gotcha 306), and upstream ships no cp314t wheel either. - python: ["cp312", "cp313", "cp314"] + # build. cp314 segfaults on the first string crossing the FFI + # boundary - this pyo3 predates CPython 3.14's changed Unicode + # object layout (gotcha 322) - and cp314t is dropped too, since the + # same pyo3 predates Py_GIL_DISABLED entirely (gotcha 306). + python: ["cp312", "cp313"] steps: - name: Checkout vtracer ${{ env.VTRACER_VERSION }}