tombi: add build-tombi.yml for riscv64 wheels

.github/workflows/build-tombi.yml

@@ -0,0 +1,159 @@
+# SPDX-FileCopyrightText: 2026 The RISE Project
+# SPDX-License-Identifier: MIT
+---
+# This workflow is based on the `linux` job of
+# https://github.com/tombi-toml/tombi/blob/v1.4.1/.github/workflows/release_pypi.yml
+name: Build tombi wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'tombi version to build (git tag without the leading v, e.g. 1.4.1)'
+        required: true
+        default: '1.4.1'
+  pull_request:
+    paths:
+      - '.github/workflows/build-tombi.yml'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ inputs.version || '1.4.1' }}-${{ 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 1.4.1 there.
+  TOMBI_VERSION: ${{ inputs.version || '1.4.1' }}
+
+jobs:
+  setup:
+    uses: $/.github/workflows/_setup.yml
+
+  build_wheel:
+    needs: [setup]
+    name: Build tombi ${{ inputs.version || '1.4.1' }} manylinux_riscv64
+    runs-on: ubuntu-24.04-riscv
+    # tombi-cli pulls in tower-lsp/tokio/reqwest/rayon, well beyond the other
+    # maturin bindings=bin CLIs here; the default 360m timed out mid-link.
+    timeout-minutes: 1440
+
+    steps:
+      - name: Checkout tombi v${{ env.TOMBI_VERSION }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: tombi-toml/tombi
+          ref: v${{ env.TOMBI_VERSION }}
+          persist-credentials: false
+
+      # pyproject.toml/Cargo.toml both pin the placeholder "0.0.0-dev" upstream's
+      # own `cargo xtask set-version` replaces from GITHUB_REF at release time
+      # (xtask/src/command/set_version.rs); reproduce just the two patches this
+      # build needs instead of running xtask itself.
+      - name: Set version
+        run: |
+          sed -i "s/^version = \"0.0.0-dev\".*/version = \"${TOMBI_VERSION}\"/" pyproject.toml Cargo.toml
+
+      # `[tool.maturin] bindings = "bin"`: the wheel is one compiled executable
+      # with no ABI tag, so a single native build covers every interpreter.
+      # No `--locked` (unlike build-taplo.yml/build-git-cliff.yml, and matching
+      # upstream's own release_pypi.yml): the version patch above leaves
+      # Cargo.lock's workspace-local entries stale, so cargo needs to update it.
+      - name: Build wheel
+        uses: PyO3/maturin-action@e83996d129638aa358a18fbd1dfb82f0b0fb5d3b  # v1.51.0
+        with:
+          command: build
+          target: riscv64gc-unknown-linux-gnu
+          args: --release --out dist
+          manylinux: '2_39'
+          before-script-linux: git config --global --add safe.directory "*"
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: tombi-${{ env.TOMBI_VERSION }}-manylinux_riscv64
+          path: dist/*.whl
+          if-no-files-found: error
+
+  test_wheel:
+    name: Test tombi ${{ inputs.version || '1.4.1' }} on Python ${{ matrix.python-version }}
+    needs: [setup, build_wheel]
+    runs-on: ubuntu-24.04-riscv
+    timeout-minutes: 30
+    env:
+      # Without this uv would reuse the runner image's system CPython for 3.12
+      # and download a standalone build for the others.
+      UV_PYTHON_PREFERENCE: only-managed
+    strategy:
+      fail-fast: false
+      matrix:
+        # This repo's default interpreter matrix (gotcha in workflow-anatomy.md);
+        # the wheel is interpreter-agnostic (bindings = "bin"), so every
+        # interpreter -- including free-threaded -- exercises the same binary.
+        python-version: ['3.12', '3.13', '3.14', '3.14t']
+
+    steps:
+      - name: Download wheel
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8.0.1
+        with:
+          name: tombi-${{ env.TOMBI_VERSION }}-manylinux_riscv64
+
+      - name: Install Python
+        uses: astral-sh/setup-uv@20cfd1bf945f4377ade1205e4dbc17946fc9a30d  # v10.0.1
+        with:
+          python-version: ${{ matrix.python-version }}
+          activate-environment: true
+          enable-cache: false
+
+      - name: Install wheel
+        run: uv pip install --reinstall --no-index --find-links . tombi
+
+      # Mirrors upstream's own `uv run --frozen pytest` (python/tombi/tests):
+      # the wheel also ships an importable `tombi` module (python-source =
+      # "python/tombi/src") whose whole job is exposing __version__.
+      - name: Test wheel
+        run: |
+          set -euo pipefail
+          python -c "import tombi; print(tombi.__version__); assert tombi.__version__ == '${TOMBI_VERSION}'"
+
+          tombi --version
+          tombi --help >/dev/null
+
+          work=$(mktemp -d)
+          cat > "$work/bad.toml" <<'TOML'
+          [package
+          name = "oops"
+          TOML
+
+          set +e
+          out=$(tombi lint --offline "$work/bad.toml" 2>&1)
+          rc=$?
+          set -e
+          echo "$out"
+          [ "$rc" -ne 0 ]
+
+          cat > "$work/messy.toml" <<'TOML'
+          [package]
+          name    =   "demo"
+          version="0.1.0"
+          TOML
+
+          set +e
+          tombi format --offline --check "$work/messy.toml"
+          rc=$?
+          set -e
+          [ "$rc" -ne 0 ]
+
+          tombi format --offline "$work/messy.toml"
+          tombi format --offline --check "$work/messy.toml"
+          grep -q 'name = "demo"' "$work/messy.toml"
+
+  publish:
+    name: Publish tombi ${{ inputs.version || '1.4.1' }}
+    needs: [setup, build_wheel, test_wheel]
+    permissions:
+      contents: write
+      pull-requests: write
+    uses: $/.github/workflows/_publish-wheel.yml
+    with:
+      artifact-pattern: tombi-${{ inputs.version || '1.4.1' }}-manylinux_riscv64