xrootd: add build-xrootd.yml for riscv64 wheels

.github/workflows/build-xrootd.yml

@@ -0,0 +1,182 @@
+# SPDX-FileCopyrightText: 2026 The RISE Project
+# SPDX-License-Identifier: MIT
+---
+# This workflow is based on: https://github.com/xrootd/xrootd/blob/master/.github/workflows/python.yml
+name: Build xrootd wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'xrootd version to build (git tag without leading v, e.g. 6.1.1)'
+        required: true
+        default: '6.1.1'
+  pull_request:
+    paths:
+      - '.github/workflows/build-xrootd.yml'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ inputs.version || '6.1.1' }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read  # to fetch code (actions/checkout)
+
+env:
+  XROOTD_VERSION: ${{ inputs.version || '6.1.1' }}
+  MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64
+
+jobs:
+  setup:
+    uses: $/.github/workflows/_setup.yml
+
+  build_wheels:
+    needs: [setup]
+    name: Build xrootd ${{ inputs.version || '6.1.1' }} ${{ matrix.python }}-manylinux_riscv64
+    runs-on: ubuntu-24.04-riscv
+    timeout-minutes: 120
+    strategy:
+      fail-fast: false
+      matrix:
+        python: ["cp312", "cp313", "cp314", "cp314t"]
+
+    steps:
+      - name: Checkout xrootd v${{ env.XROOTD_VERSION }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: xrootd/xrootd
+          ref: v${{ env.XROOTD_VERSION }}
+          persist-credentials: false
+
+      # The tag's VERSION file is an unexpanded `git-archive` export-subst
+      # placeholder (`$Format:%(describe)$`); setup.py and CMake both fall
+      # back to `git describe`, which a shallow single-ref checkout can't
+      # answer. Writing the real version here is the officially supported
+      # override (cmake/XRootDVersion.cmake reads this file first).
+      - name: Set version from tag
+        run: echo -n '${{ env.XROOTD_VERSION }}' > VERSION
+
+      - name: Stage the licence-collection script
+        run: |
+          cat > collect-licenses.sh <<'COLLECT_EOF'
+          #!/bin/bash
+          # SPDX-FileCopyrightText: 2026 The RISE Project
+          # SPDX-License-Identifier: MIT
+          #
+          # Stage, at the project root, the licence of every shared library
+          # auditwheel vendors out of the build image alongside the XRootD
+          # client libraries (OpenSSL, Kerberos, libuuid and their closure).
+          # setuptools' default LICENSE* glob copies them into the wheel.
+          set -euo pipefail
+
+          project="${1:?usage: collect-licenses.sh <project-dir>}"
+
+          # ldd is transitive, so these roots cover their whole closure; ldd
+          # does not list the roots themselves, so resolve those too. libcrypt
+          # is not pulled in by any -devel package above: XrdUtils' own CMake
+          # probes for crypt() directly and links libc-adjacent libxcrypt,
+          # which the base image already ships.
+          mapfile -t libs < <(
+              {
+                  for root in libssl.so libcrypto.so libkrb5.so libuuid.so libcrypt.so; do
+                      path="/usr/lib64/${root}"
+                      [ -e "${path}" ] || continue
+                      ldd "${path}" | tr ' ' '\n' | grep '^/'
+                      readlink -f "${path}"
+                  done
+              } | sort -u
+          )
+
+          # `rpm -qf` reports unowned files on stdout, so keep only bare package names.
+          # glibc, the gcc runtime and zlib are on auditwheel's manylinux allowlist
+          # (confirmed against the upstream x86_64 wheel's auditwheel-vendored set)
+          # and are never vendored into the wheel; zlib-ng-compat also ships no
+          # licence file via any rpm metadata path, so it would break the loop below.
+          mapfile -t pkgs < <(
+              rpm -qf --qf '%{NAME}\n' "${libs[@]}" 2>/dev/null |
+                  grep -E '^[A-Za-z0-9._+-]+$' | sort -u |
+                  grep -vE '^(glibc|libgcc|libstdc\+\+|gcc|zlib-ng-compat)$'
+          )
+
+          for pkg in "${pkgs[@]}"; do
+              mapfile -t files < <(rpm -q --licensefiles "$pkg" 2>/dev/null || true)
+
+              # Some subpackages leave the licence to a sibling of the same source RPM.
+              if [ -z "${files[0]:-}" ]; then
+                  srpm=$(rpm -q --qf '%{SOURCERPM}\n' "$pkg")
+                  mapfile -t files < <(
+                      rpm -qa --qf '%{SOURCERPM} %{NAME}\n' |
+                          awk -v s="$srpm" '$1 == s { print $2 }' |
+                          xargs -r rpm -q --licensefiles 2>/dev/null | sort -u
+                  )
+              fi
+
+              # Others mark it %doc rather than %license, and the image installs no docs.
+              if [ -z "${files[0]:-}" ]; then
+                  dnf -y --disablerepo=extras reinstall --setopt=tsflags= "$pkg" >/dev/null
+                  mapfile -t files < <(rpm -qd "$pkg" | grep -iE '/(LICEN[CS]E|COPYING|NOTICE)')
+              fi
+
+              for f in "${files[@]}"; do
+                  [ -f "$f" ] || continue
+                  cp "$f" "$project/LICENSE.${pkg}.$(basename "$f")"
+              done
+              compgen -G "$project/LICENSE.$pkg.*" >/dev/null ||
+                  { echo "no licence file found for $pkg" >&2; exit 1; }
+          done
+
+          ls -1 "$project"/LICENSE.* | sed "s|$project/||"
+          COLLECT_EOF
+
+      - name: Build wheels
+        uses: pypa/cibuildwheel@1828c10ab37f080699c7b81cea34097c684a7074  # v4.2.0
+        with:
+          output-dir: wheelhouse/
+          only: ${{ matrix.python }}-manylinux_riscv64
+        env:
+          CIBW_MANYLINUX_RISCV64_IMAGE: ${{ env.MANYLINUX_RISCV64_IMAGE }}
+          CIBW_BEFORE_ALL_LINUX: >-
+            dnf install -y krb5-devel libuuid-devel openssl-devel &&
+            bash {project}/collect-licenses.sh {project}
+          CIBW_ENVIRONMENT: CMAKE_ARGS=-DCMAKE_BUILD_TYPE=Release
+          # Upstream's own manylinux job test step (python.yml): import the
+          # extension and the pure-Python client, then build a FileSystem
+          # object (no network I/O, so no server needed).
+          CIBW_TEST_COMMAND: |
+            python -m pip show xrootd &&
+            python -c "import XRootD; print(XRootD)" &&
+            python -c "import pyxrootd; print(pyxrootd)" &&
+            python -c "from XRootD import client; help(client)" &&
+            python -c "from XRootD import client; print(client.FileSystem('root://localhost'))"
+
+      - name: Verify the wheel ships the compiled extension and licences
+        run: |
+          python3 - wheelhouse/*.whl <<'EOF'
+          import sys, zipfile
+          names = zipfile.ZipFile(sys.argv[1]).namelist()
+          sos = sorted(n for n in names if n.endswith(".so"))
+          print("\n".join(sos))
+          assert any("/client.cpython" in "/" + n for n in sos), sos
+
+          lic = sorted(n.split("/")[-1] for n in names if ".dist-info/licenses/" in n and not n.endswith("/"))
+          print("\n".join(lic))
+          expected_pkgs = {"openssl-libs", "krb5-libs", "libuuid", "libxcrypt"}
+          have_pkgs = {f.split(".", 2)[1] for f in lic if f.startswith("LICENSE.")}
+          assert expected_pkgs <= have_pkgs, expected_pkgs - have_pkgs
+          EOF
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: xrootd-${{ env.XROOTD_VERSION }}-${{ matrix.python }}-manylinux_riscv64
+          path: wheelhouse/*.whl
+          if-no-files-found: error
+
+  publish:
+    name: Publish xrootd ${{ inputs.version || '6.1.1' }}
+    needs: [setup, build_wheels]
+    permissions:
+      contents: write
+      pull-requests: write
+    uses: $/.github/workflows/_publish-wheel.yml
+    with:
+      artifact-pattern: xrootd-${{ inputs.version || '6.1.1' }}-*-manylinux_riscv64