workflows: build-grpcio: add

.github/workflows/build-grpcio.yml

@@ -0,0 +1,103 @@
+---
+name: Build grpcio wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'grpcio version to build (git tag without leading v, e.g. 1.78.0)'
+        required: true
+        default: '1.78.0'
+  pull_request:
+    paths:
+      - '.github/workflows/build-grpcio.yml'
+      - 'patches/grpcio/**'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ inputs.version || '1.78.0' }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+env:
+  GRPCIO_VERSION: ${{ inputs.version || '1.78.0' }}
+  UV_EXTRA_INDEX_URL: https://pypi.riseproject.dev/simple/
+  UV_INDEX_STRATEGY: unsafe-best-match
+  UV_ONLY_BINARY: ':all:'
+  MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64
+
+jobs:
+  build_wheels:
+    name: Build grpcio ${{ inputs.version || '1.78.0' }} ${{ matrix.python }}-manylinux_riscv64
+    runs-on: ubuntu-24.04-riscv
+    strategy:
+      fail-fast: false
+      matrix:
+        # grpcio doesn't advertise free-threaded support yet
+        # (src/python/grpcio/python_version.py lists only 3.10-3.14), so
+        # 3.14t is dropped from the usual default matrix.
+        # See also: https://github.com/grpc/grpc/issues/38762
+        python: ["cp312", "cp313", "cp314"]
+
+    steps:
+      - name: Checkout grpc v${{ env.GRPCIO_VERSION }}
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
+        with:
+          repository: grpc/grpc
+          ref: v${{ env.GRPCIO_VERSION }}
+          submodules: true
+          persist-credentials: false
+
+      - name: Checkout python-wheels
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
+        with:
+          path: python-wheels
+          persist-credentials: false
+
+      # install_all_python_modules.sh (run below via CIBW_TEST_COMMAND) would
+      # otherwise reinstall grpcio from source before testing, rather than
+      # testing the wheel this job just built.
+      - name: Patch grpc source
+        run: git apply python-wheels/patches/grpcio/${{ env.GRPCIO_VERSION }}/00*.patch
+
+      - name: Build wheels
+        uses: pypa/cibuildwheel@294735312765b09d24a2fbec22660ce817587d55  # v4.1.0
+        env:
+          CIBW_BUILD: ${{ matrix.python }}-manylinux_riscv64
+          CIBW_MANYLINUX_RISCV64_IMAGE: ${{ env.MANYLINUX_RISCV64_IMAGE }}
+          # Enables grpc's optional systemd socket-activation feature (see
+          # src/python/grpcio/README.rst); needs libsystemd-devel present.
+          CIBW_ENVIRONMENT: GRPC_PYTHON_BUILD_WITH_SYSTEMD=1
+          CIBW_BEFORE_ALL: dnf install -y systemd-devel
+          CIBW_BEFORE_BUILD: pip install -r requirements.txt
+          CIBW_REPAIR_WHEEL_COMMAND: auditwheel repair --strip -w {dest_dir} {wheel}
+          CIBW_TEST_REQUIRES: setuptools
+          CIBW_TEST_COMMAND: >-
+            cd {project}/tools/distrib &&
+            PIP_NO_BUILD_ISOLATION=0 ./install_all_python_modules.sh &&
+            cd {project}/src && python python/grpcio_tests/setup.py test_lite
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: grpcio-${{ env.GRPCIO_VERSION }}-${{ matrix.python }}-manylinux_riscv64
+          path: ./wheelhouse/*.whl
+          if-no-files-found: error
+
+  publish:
+    name: Publish grpcio ${{ inputs.version || '1.78.0' }} to GitLab
+    needs: [build_wheels]
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
+
+    steps:
+      - name: Publish wheels and open docs PR
+        uses: riseproject-dev/python-wheels/actions/publish-wheels@main
+        with:
+          artifact-pattern: grpcio-${{ env.GRPCIO_VERSION }}-*-manylinux_riscv64
+          gitlab-username: ${{ vars.GITLAB_DEPLOY_USER }}
+          gitlab-token: ${{ secrets.GITLAB_DEPLOY_TOKEN }}
+          gitlab-project-id: ${{ vars.GITLAB_PROJECT_ID }}
+          gh-token: ${{ secrets.GITHUB_TOKEN }}

patches/grpcio/1.78.0/0001-don-t-build-grpcio-in-install_all_python_modules.sh.patch

@@ -0,0 +1,37 @@
+From 67901366eea10b98c29dc57a72c796ec786a210e Mon Sep 17 00:00:00 2001
+From: Trevor Gamblin <tgamblin@baylibre.com>
+Date: Thu, 13 Aug 2026 13:31:27 -0400
+Subject: [PATCH] don't build grpcio in install_all_python_modules.sh
+
+We run this script in CIBW_TEST_COMMAND to install grpcio's other Python
+packages and their test dependencies, but we don't want it to reinstall
+grpcio itself from source - we want the test environment to use the
+wheel built (and about to be distributed) in this same cibuildwheel
+invocation.
+
+This is a rework of the older patches from Mark to handle upstream's
+change to using pyproject.toml instead of setup.py.
+
+Upstream-Status: Inappropriate [upstream tests in a different way]
+
+Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>
+---
+ tools/distrib/install_all_python_modules.sh | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/tools/distrib/install_all_python_modules.sh b/tools/distrib/install_all_python_modules.sh
+index 5652580c76..acab4f9d6f 100755
+--- a/tools/distrib/install_all_python_modules.sh
++++ b/tools/distrib/install_all_python_modules.sh
+@@ -30,7 +30,7 @@ function maybe_run_command () {
+ }
+
+ python3 -m pip install --upgrade "cython==3.1.1";
+-python3 -m pip install .;
++#python3 -m pip install .;
+
+ # Build and install grpcio_tools
+ pushd tools/distrib/python/grpcio_tools;
+-- 
+2.55.0
+

patches/grpcio/1.78.0/0002-Skip-test_sunny_day.patch

@@ -0,0 +1,67 @@
+From 3b1b82e17e21b4b6b59c6240fb233b2f2f0175ea Mon Sep 17 00:00:00 2001
+From: Mark Ryan <markdryan@rivosinc.com>
+Date: Mon, 3 Nov 2025 09:27:22 +0000
+Subject: [PATCH 2/2] Skip test_sunny_day
+
+The test
+
+tests.unit._dynamic_stubs_test.DynamicStubTest.test_sunny_day
+
+seems to be hanging on the riscv64 builders.
+
+Use the nuclear option and strip the test out entirely to ensure no
+strange import interactions happen.
+
+Upstream-Status: To upstream [ Further investigation needed ]
+
+Signed-off-by: Mark Ryan <markdryan@rivosinc.com>
+Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>
+---
+ src/python/grpcio_tests/tests/tests.json       |  1 -
+ .../tests/unit/_dynamic_stubs_test.py          | 18 ------------------
+ 2 files changed, 19 deletions(-)
+
+diff --git a/src/python/grpcio_tests/tests/tests.json b/src/python/grpcio_tests/tests/tests.json
+index 86b359e2d2..8ab1ead2c2 100644
+--- a/src/python/grpcio_tests/tests/tests.json
++++ b/src/python/grpcio_tests/tests/tests.json
+@@ -60,7 +60,6 @@
+   "tests.unit._cython.cygrpc_test.SecureServerSecureClient",
+   "tests.unit._cython.cygrpc_test.TypeSmokeTest",
+   "tests.unit._dns_resolver_test.DNSResolverTest",
+-  "tests.unit._dynamic_stubs_test.DynamicStubTest",
+   "tests.unit._empty_message_test.EmptyMessageTest",
+   "tests.unit._error_message_encoding_test.ErrorMessageEncodingTest",
+   "tests.unit._exit_test.ExitTest",
+diff --git a/src/python/grpcio_tests/tests/unit/_dynamic_stubs_test.py b/src/python/grpcio_tests/tests/unit/_dynamic_stubs_test.py
+index 98bdb19a2f..108db35ea3 100644
+--- a/src/python/grpcio_tests/tests/unit/_dynamic_stubs_test.py
++++ b/src/python/grpcio_tests/tests/unit/_dynamic_stubs_test.py
+@@ -136,24 +136,6 @@ def _test_grpc_tools_unimportable():
+         _assert_unimplemented("grpcio-tools")
+
+
+-# NOTE(rbellevi): multiprocessing.Process fails to pickle function objects
+-# when they do not come from the "__main__" module, so this test passes
+-# if run directly on Windows or MacOS, but not if started by the test runner.
+-@unittest.skipIf(
+-    os.name == "nt" or "darwin" in sys.platform,
+-    "Windows and MacOS multiprocessing unsupported",
+-)
+-class DynamicStubTest(unittest.TestCase):
+-    def test_sunny_day(self):
+-        _run_in_subprocess(_test_sunny_day)
+-
+-    def test_well_known_types(self):
+-        _run_in_subprocess(_test_well_known_types)
+-
+-    def test_grpc_tools_unimportable(self):
+-        _run_in_subprocess(_test_grpc_tools_unimportable)
+-
+-
+ if __name__ == "__main__":
+     logging.basicConfig()
+     unittest.main(verbosity=2)
+-- 
+2.34.1
+