Add a stub Rust crate (#12595)

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Erik Johnston 2022-09-06 19:01:37 +01:00 committed by GitHub
parent 3d20115115
commit c9b7e97355
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23 changed files with 302 additions and 11 deletions

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@ -4,8 +4,12 @@
# things to include # things to include
!docker !docker
!synapse !synapse
!rust
!README.rst !README.rst
!pyproject.toml !pyproject.toml
!poetry.lock !poetry.lock
!build_rust.py
rust/target
**/__pycache__ **/__pycache__

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@ -89,9 +89,67 @@ jobs:
name: debs name: debs
path: debs/* path: debs/*
build-wheels:
name: Build wheels on ${{ matrix.os }}
runs-on: ${{ matrix.os }}
strategy:
matrix:
os: [ubuntu-20.04, macos-10.15]
is_pr:
- ${{ startsWith(github.ref, 'refs/pull/') }}
exclude:
# Don't build macos wheels on PR CI.
- is_pr: true
os: "macos-10.15"
steps:
- uses: actions/checkout@v3
- uses: actions/setup-python@v3
- name: Install cibuildwheel
run: python -m pip install cibuildwheel==2.9.0 poetry==1.2.0
# Only build a single wheel in CI.
- name: Set env vars.
run: |
echo "CIBW_BUILD="cp37-manylinux_x86_64"" >> $GITHUB_ENV
if: startsWith(github.ref, 'refs/pull/')
- name: Build wheels
run: python -m cibuildwheel --output-dir wheelhouse
env:
# Skip testing for platforms which various libraries don't have wheels
# for, and so need extra build deps.
CIBW_TEST_SKIP: pp39-* *i686* *musl* pp37-macosx*
- uses: actions/upload-artifact@v3
with:
name: Wheel
path: ./wheelhouse/*.whl
build-sdist: build-sdist:
name: "Build pypi distribution files" name: Build sdist
uses: "matrix-org/backend-meta/.github/workflows/packaging.yml@v1" runs-on: ubuntu-latest
if: ${{ !startsWith(github.ref, 'refs/pull/') }}
steps:
- uses: actions/checkout@v3
- uses: actions/setup-python@v4
with:
python-version: '3.10'
- run: pip install build
- name: Build sdist
run: python -m build --sdist
- uses: actions/upload-artifact@v2
with:
name: Sdist
path: dist/*.tar.gz
# if it's a tag, create a release and attach the artifacts to it # if it's a tag, create a release and attach the artifacts to it
attach-assets: attach-assets:
@ -99,6 +157,7 @@ jobs:
if: ${{ !failure() && !cancelled() && startsWith(github.ref, 'refs/tags/') }} if: ${{ !failure() && !cancelled() && startsWith(github.ref, 'refs/tags/') }}
needs: needs:
- build-debs - build-debs
- build-wheels
- build-sdist - build-sdist
runs-on: ubuntu-latest runs-on: ubuntu-latest
steps: steps:

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@ -139,6 +139,12 @@ jobs:
steps: steps:
- uses: actions/checkout@v2 - uses: actions/checkout@v2
- name: Install Rust
uses: actions-rs/toolchain@v1
with:
toolchain: 1.61.0
override: true
# There aren't wheels for some of the older deps, so we need to install # There aren't wheels for some of the older deps, so we need to install
# their build dependencies # their build dependencies
- run: | - run: |
@ -175,7 +181,7 @@ jobs:
python-version: '3.7' python-version: '3.7'
extras: "all test" extras: "all test"
- run: poetry run trial -j 2 tests - run: poetry run trial -j2 tests
- name: Dump logs - name: Dump logs
# Logs are most useful when the command fails, always include them. # Logs are most useful when the command fails, always include them.
if: ${{ always() }} if: ${{ always() }}
@ -247,6 +253,11 @@ jobs:
- uses: actions/checkout@v2 - uses: actions/checkout@v2
- name: Prepare test blacklist - name: Prepare test blacklist
run: cat sytest-blacklist .ci/worker-blacklist > synapse-blacklist-with-workers run: cat sytest-blacklist .ci/worker-blacklist > synapse-blacklist-with-workers
- name: Install Rust
uses: actions-rs/toolchain@v1
with:
toolchain: 1.61.0
override: true
- name: Run SyTest - name: Run SyTest
run: /bootstrap.sh synapse run: /bootstrap.sh synapse
working-directory: /src working-directory: /src
@ -353,6 +364,12 @@ jobs:
with: with:
path: synapse path: synapse
- name: Install Rust
uses: actions-rs/toolchain@v1
with:
toolchain: 1.61.0
override: true
- name: Prepare Complement's Prerequisites - name: Prepare Complement's Prerequisites
run: synapse/.ci/scripts/setup_complement_prerequisites.sh run: synapse/.ci/scripts/setup_complement_prerequisites.sh

7
.gitignore vendored
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@ -60,3 +60,10 @@ book/
# complement # complement
/complement-* /complement-*
/master.tar.gz /master.tar.gz
# rust
/target/
/synapse/*.so
# Poetry will create a setup.py, which we don't want to include.
/setup.py

5
Cargo.toml Normal file
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@ -0,0 +1,5 @@
# We make the whole Synapse folder a workspace so that we can run `cargo`
# commands from the root (rather than having to cd into rust/).
[workspace]
members = ["rust"]

20
build_rust.py Normal file
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@ -0,0 +1,20 @@
# A build script for poetry that adds the rust extension.
import os
from typing import Any, Dict
from setuptools_rust import Binding, RustExtension
def build(setup_kwargs: Dict[str, Any]) -> None:
original_project_dir = os.path.dirname(os.path.realpath(__file__))
cargo_toml_path = os.path.join(original_project_dir, "rust", "Cargo.toml")
extension = RustExtension(
target="synapse.synapse_rust",
path=cargo_toml_path,
binding=Binding.PyO3,
py_limited_api=True,
)
setup_kwargs.setdefault("rust_extensions", []).append(extension)
setup_kwargs["zip_safe"] = False

1
changelog.d/12595.misc Normal file
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@ -0,0 +1 @@
Add a stub Rust crate.

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@ -61,7 +61,7 @@ dh_virtualenv \
--extras="all,systemd,test" \ --extras="all,systemd,test" \
--requirements="exported_requirements.txt" --requirements="exported_requirements.txt"
PACKAGE_BUILD_DIR="debian/matrix-synapse-py3" PACKAGE_BUILD_DIR="$(pwd)/debian/matrix-synapse-py3"
VIRTUALENV_DIR="${PACKAGE_BUILD_DIR}${DH_VIRTUALENV_INSTALL_ROOT}/matrix-synapse" VIRTUALENV_DIR="${PACKAGE_BUILD_DIR}${DH_VIRTUALENV_INSTALL_ROOT}/matrix-synapse"
TARGET_PYTHON="${VIRTUALENV_DIR}/bin/python" TARGET_PYTHON="${VIRTUALENV_DIR}/bin/python"
@ -78,9 +78,14 @@ case "$DEB_BUILD_OPTIONS" in
cp -r tests "$tmpdir" cp -r tests "$tmpdir"
# To avoid pulling in the unbuilt Synapse in the local directory
pushd /
PYTHONPATH="$tmpdir" \ PYTHONPATH="$tmpdir" \
"${TARGET_PYTHON}" -m twisted.trial --reporter=text -j2 tests "${TARGET_PYTHON}" -m twisted.trial --reporter=text -j2 tests
popd
;; ;;
esac esac

4
debian/changelog vendored
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@ -12,11 +12,15 @@ matrix-synapse-py3 (1.66.0) stable; urgency=medium
matrix-synapse-py3 (1.66.0~rc2+nmu1) UNRELEASED; urgency=medium matrix-synapse-py3 (1.66.0~rc2+nmu1) UNRELEASED; urgency=medium
[ Jörg Behrmann ]
* Update debhelper to compatibility level 12. * Update debhelper to compatibility level 12.
* Drop the preinst script stopping synapse. * Drop the preinst script stopping synapse.
* Allocate a group for the system user. * Allocate a group for the system user.
* Change dpkg-statoverride to --force-statoverride-add. * Change dpkg-statoverride to --force-statoverride-add.
[ Erik Johnston ]
* Disable `dh_auto_configure` as it broke during Rust build.
-- Jörg Behrmann <behrmann@physik.fu-berlin.de> Tue, 23 Aug 2022 17:17:00 +0100 -- Jörg Behrmann <behrmann@physik.fu-berlin.de> Tue, 23 Aug 2022 17:17:00 +0100
matrix-synapse-py3 (1.66.0~rc2) stable; urgency=medium matrix-synapse-py3 (1.66.0~rc2) stable; urgency=medium

2
debian/rules vendored
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@ -12,6 +12,8 @@ override_dh_installsystemd:
# we don't really want to strip the symbols from our object files. # we don't really want to strip the symbols from our object files.
override_dh_strip: override_dh_strip:
override_dh_auto_configure:
# many libraries pulled from PyPI have allocatable sections after # many libraries pulled from PyPI have allocatable sections after
# non-allocatable ones on which dwz errors out. For those without the issue the # non-allocatable ones on which dwz errors out. For those without the issue the
# gains are only marginal # gains are only marginal

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@ -92,11 +92,20 @@ RUN \
libxml++2.6-dev \ libxml++2.6-dev \
libxslt1-dev \ libxslt1-dev \
openssl \ openssl \
rustc \
zlib1g-dev \ zlib1g-dev \
git \ git \
curl \
&& rm -rf /var/lib/apt/lists/* && rm -rf /var/lib/apt/lists/*
# Install rust and ensure its in the PATH
ENV RUSTUP_HOME=/rust
ENV CARGO_HOME=/cargo
ENV PATH=/cargo/bin:/rust/bin:$PATH
RUN mkdir /rust /cargo
RUN curl -sSf https://sh.rustup.rs | sh -s -- -y --no-modify-path --default-toolchain stable
# To speed up rebuilds, install all of the dependencies before we copy over # To speed up rebuilds, install all of the dependencies before we copy over
# the whole synapse project, so that this layer in the Docker cache can be # the whole synapse project, so that this layer in the Docker cache can be
# used while you develop on the source # used while you develop on the source
@ -108,8 +117,9 @@ RUN --mount=type=cache,target=/root/.cache/pip \
# Copy over the rest of the synapse source code. # Copy over the rest of the synapse source code.
COPY synapse /synapse/synapse/ COPY synapse /synapse/synapse/
COPY rust /synapse/rust/
# ... and what we need to `pip install`. # ... and what we need to `pip install`.
COPY pyproject.toml README.rst /synapse/ COPY pyproject.toml README.rst build_rust.py /synapse/
# Repeat of earlier build argument declaration, as this is a new build stage. # Repeat of earlier build argument declaration, as this is a new build stage.
ARG TEST_ONLY_IGNORE_POETRY_LOCKFILE ARG TEST_ONLY_IGNORE_POETRY_LOCKFILE

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@ -72,6 +72,7 @@ RUN apt-get update -qq -o Acquire::Languages=none \
&& env DEBIAN_FRONTEND=noninteractive apt-get install \ && env DEBIAN_FRONTEND=noninteractive apt-get install \
-yqq --no-install-recommends -o Dpkg::Options::=--force-unsafe-io \ -yqq --no-install-recommends -o Dpkg::Options::=--force-unsafe-io \
build-essential \ build-essential \
curl \
debhelper \ debhelper \
devscripts \ devscripts \
libsystemd-dev \ libsystemd-dev \
@ -85,6 +86,15 @@ RUN apt-get update -qq -o Acquire::Languages=none \
libpq-dev \ libpq-dev \
xmlsec1 xmlsec1
# Install rust and ensure it's in the PATH
ENV RUSTUP_HOME=/rust
ENV CARGO_HOME=/cargo
ENV PATH=/cargo/bin:/rust/bin:$PATH
RUN mkdir /rust /cargo
RUN curl -sSf https://sh.rustup.rs | sh -s -- -y --no-modify-path --default-toolchain stable
COPY --from=builder /dh-virtualenv_1.2.2-1_all.deb / COPY --from=builder /dh-virtualenv_1.2.2-1_all.deb /
# install dhvirtualenv. Update the apt cache again first, in case we got a # install dhvirtualenv. Update the apt cache again first, in case we got a

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@ -18,6 +18,12 @@ documented at [https://endoflife.date/python](https://endoflife.date/python) and
[https://endoflife.date/postgresql](https://endoflife.date/postgresql). [https://endoflife.date/postgresql](https://endoflife.date/postgresql).
A Rust compiler is required to build Synapse from source. For any given release
the minimum required version may be bumped up to a recent Rust version, and so
people building from source should ensure they can fetch recent versions of Rust
(e.g. by using [rustup](https://rustup.rs/)).
Context Context
------- -------
@ -31,3 +37,10 @@ long process.
By following the upstream support life cycles Synapse can ensure that its By following the upstream support life cycles Synapse can ensure that its
dependencies continue to get security patches, while not requiring system admins dependencies continue to get security patches, while not requiring system admins
to constantly update their platform dependencies to the latest versions. to constantly update their platform dependencies to the latest versions.
For Rust, the situation is a bit different given that a) the Rust foundation
does not generally support older Rust versions, and b) the library ecosystem
generally bump their minimum support Rust versions frequently. In general, the
Synapse team will try to avoid updating the dependency on Rust to the absolute
latest version, but introducing a formal policy is hard given the constraints of
the ecosystem.

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@ -28,6 +28,9 @@ The source code of Synapse is hosted on GitHub. You will also need [a recent ver
For some tests, you will need [a recent version of Docker](https://docs.docker.com/get-docker/). For some tests, you will need [a recent version of Docker](https://docs.docker.com/get-docker/).
A recent version of the Rust compiler is needed to build the native modules. The
easiest way of installing the latest version is to use [rustup](https://rustup.rs/).
# 3. Get the source. # 3. Get the source.
@ -114,6 +117,11 @@ Some documentation also exists in [Synapse's GitHub
Wiki](https://github.com/matrix-org/synapse/wiki), although this is primarily Wiki](https://github.com/matrix-org/synapse/wiki), although this is primarily
contributed to by community authors. contributed to by community authors.
When changes are made to any Rust code then you must call either `poetry install`
or `maturin develop` (if installed) to rebuild the Rust code. Using [`maturin`](https://github.com/PyO3/maturin)
is quicker than `poetry install`, so is recommended when making frequent
changes to the Rust code.
# 8. Test, test, test! # 8. Test, test, test!
<a name="test-test-test"></a> <a name="test-test-test"></a>

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@ -196,6 +196,10 @@ System requirements:
- Python 3.7 or later, up to Python 3.10. - Python 3.7 or later, up to Python 3.10.
- At least 1GB of free RAM if you want to join large public rooms like #matrix:matrix.org - At least 1GB of free RAM if you want to join large public rooms like #matrix:matrix.org
If building on an uncommon architecture for which pre-built wheels are
unavailable, you will need to have a recent Rust compiler installed. The easiest
way of installing the latest version is to use [rustup](https://rustup.rs/).
To install the Synapse homeserver run: To install the Synapse homeserver run:
```sh ```sh

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@ -16,7 +16,8 @@ files =
docker/, docker/,
scripts-dev/, scripts-dev/,
synapse/, synapse/,
tests/ tests/,
build_rust.py
# Note: Better exclusion syntax coming in mypy > 0.910 # Note: Better exclusion syntax coming in mypy > 0.910
# https://github.com/python/mypy/pull/11329 # https://github.com/python/mypy/pull/11329
@ -181,3 +182,6 @@ ignore_missing_imports = True
[mypy-incremental.*] [mypy-incremental.*]
ignore_missing_imports = True ignore_missing_imports = True
[mypy-setuptools_rust.*]
ignore_missing_imports = True

35
poetry.lock generated
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@ -1035,6 +1035,18 @@ python-versions = ">=3.6"
cryptography = ">=2.0" cryptography = ">=2.0"
jeepney = ">=0.6" jeepney = ">=0.6"
[[package]]
name = "semantic-version"
version = "2.10.0"
description = "A library implementing the 'SemVer' scheme."
category = "main"
optional = false
python-versions = ">=2.7"
[package.extras]
dev = ["Django (>=1.11)", "check-manifest", "colorama (<=0.4.1)", "coverage", "flake8", "nose2", "readme-renderer (<25.0)", "tox", "wheel", "zest.releaser[recommended]"]
doc = ["Sphinx", "sphinx-rtd-theme"]
[[package]] [[package]]
name = "sentry-sdk" name = "sentry-sdk"
version = "1.5.11" version = "1.5.11"
@ -1099,6 +1111,19 @@ docs = ["furo", "jaraco.packaging (>=9)", "jaraco.tidelift (>=1.4)", "pygments-g
testing = ["build[virtualenv]", "filelock (>=3.4.0)", "flake8 (<5)", "flake8-2020", "ini2toml[lite] (>=0.9)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "mock", "pip (>=19.1)", "pip-run (>=8.8)", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=1.3)", "pytest-flake8", "pytest-mypy (>=0.9.1)", "pytest-perf", "pytest-xdist", "tomli-w (>=1.0.0)", "virtualenv (>=13.0.0)", "wheel"] testing = ["build[virtualenv]", "filelock (>=3.4.0)", "flake8 (<5)", "flake8-2020", "ini2toml[lite] (>=0.9)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "mock", "pip (>=19.1)", "pip-run (>=8.8)", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=1.3)", "pytest-flake8", "pytest-mypy (>=0.9.1)", "pytest-perf", "pytest-xdist", "tomli-w (>=1.0.0)", "virtualenv (>=13.0.0)", "wheel"]
testing-integration = ["build[virtualenv]", "filelock (>=3.4.0)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "pytest", "pytest-enabler", "pytest-xdist", "tomli", "virtualenv (>=13.0.0)", "wheel"] testing-integration = ["build[virtualenv]", "filelock (>=3.4.0)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "pytest", "pytest-enabler", "pytest-xdist", "tomli", "virtualenv (>=13.0.0)", "wheel"]
[[package]]
name = "setuptools-rust"
version = "1.5.1"
description = "Setuptools Rust extension plugin"
category = "main"
optional = false
python-versions = ">=3.7"
[package.dependencies]
semantic-version = ">=2.8.2,<3"
setuptools = ">=62.4"
typing-extensions = ">=3.7.4.3"
[[package]] [[package]]
name = "signedjson" name = "signedjson"
version = "1.1.4" version = "1.1.4"
@ -1600,7 +1625,7 @@ url_preview = ["lxml"]
[metadata] [metadata]
lock-version = "1.1" lock-version = "1.1"
python-versions = "^3.7.1" python-versions = "^3.7.1"
content-hash = "0df36bf75561fef340a7af704ed379b235f07a7d4a231aaccec5e7afb87159ca" content-hash = "79cfa09d59f9f8b5ef24318fb860df1915f54328692aa56d04331ecbdd92a8cb"
[metadata.files] [metadata.files]
attrs = [ attrs = [
@ -2472,6 +2497,10 @@ secretstorage = [
{file = "SecretStorage-3.3.1-py3-none-any.whl", hash = "sha256:422d82c36172d88d6a0ed5afdec956514b189ddbfb72fefab0c8a1cee4eaf71f"}, {file = "SecretStorage-3.3.1-py3-none-any.whl", hash = "sha256:422d82c36172d88d6a0ed5afdec956514b189ddbfb72fefab0c8a1cee4eaf71f"},
{file = "SecretStorage-3.3.1.tar.gz", hash = "sha256:fd666c51a6bf200643495a04abb261f83229dcb6fd8472ec393df7ffc8b6f195"}, {file = "SecretStorage-3.3.1.tar.gz", hash = "sha256:fd666c51a6bf200643495a04abb261f83229dcb6fd8472ec393df7ffc8b6f195"},
] ]
semantic-version = [
{file = "semantic_version-2.10.0-py2.py3-none-any.whl", hash = "sha256:de78a3b8e0feda74cabc54aab2da702113e33ac9d9eb9d2389bcf1f58b7d9177"},
{file = "semantic_version-2.10.0.tar.gz", hash = "sha256:bdabb6d336998cbb378d4b9db3a4b56a1e3235701dc05ea2690d9a997ed5041c"},
]
sentry-sdk = [ sentry-sdk = [
{file = "sentry-sdk-1.5.11.tar.gz", hash = "sha256:6c01d9d0b65935fd275adc120194737d1df317dce811e642cbf0394d0d37a007"}, {file = "sentry-sdk-1.5.11.tar.gz", hash = "sha256:6c01d9d0b65935fd275adc120194737d1df317dce811e642cbf0394d0d37a007"},
{file = "sentry_sdk-1.5.11-py2.py3-none-any.whl", hash = "sha256:c17179183cac614e900cbd048dab03f49a48e2820182ec686c25e7ce46f8548f"}, {file = "sentry_sdk-1.5.11-py2.py3-none-any.whl", hash = "sha256:c17179183cac614e900cbd048dab03f49a48e2820182ec686c25e7ce46f8548f"},
@ -2484,6 +2513,10 @@ setuptools = [
{file = "setuptools-65.3.0-py3-none-any.whl", hash = "sha256:2e24e0bec025f035a2e72cdd1961119f557d78ad331bb00ff82efb2ab8da8e82"}, {file = "setuptools-65.3.0-py3-none-any.whl", hash = "sha256:2e24e0bec025f035a2e72cdd1961119f557d78ad331bb00ff82efb2ab8da8e82"},
{file = "setuptools-65.3.0.tar.gz", hash = "sha256:7732871f4f7fa58fb6bdcaeadb0161b2bd046c85905dbaa066bdcbcc81953b57"}, {file = "setuptools-65.3.0.tar.gz", hash = "sha256:7732871f4f7fa58fb6bdcaeadb0161b2bd046c85905dbaa066bdcbcc81953b57"},
] ]
setuptools-rust = [
{file = "setuptools-rust-1.5.1.tar.gz", hash = "sha256:0e05e456645d59429cb1021370aede73c0760e9360bbfdaaefb5bced530eb9d7"},
{file = "setuptools_rust-1.5.1-py3-none-any.whl", hash = "sha256:306b236ff3aa5229180e58292610d0c2c51bb488191122d2fc559ae4caeb7d5e"},
]
signedjson = [ signedjson = [
{file = "signedjson-1.1.4-py3-none-any.whl", hash = "sha256:45569ec54241c65d2403fe3faf7169be5322547706a231e884ca2b427f23d228"}, {file = "signedjson-1.1.4-py3-none-any.whl", hash = "sha256:45569ec54241c65d2403fe3faf7169be5322547706a231e884ca2b427f23d228"},
{file = "signedjson-1.1.4.tar.gz", hash = "sha256:cd91c56af53f169ef032c62e9c4a3292dc158866933318d0592e3462db3d6492"}, {file = "signedjson-1.1.4.tar.gz", hash = "sha256:cd91c56af53f169ef032c62e9c4a3292dc158866933318d0592e3462db3d6492"},

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@ -52,6 +52,9 @@ include_trailing_comma = true
combine_as_imports = true combine_as_imports = true
skip_gitignore = true skip_gitignore = true
[tool.maturin]
manifest-path = "rust/Cargo.toml"
[tool.poetry] [tool.poetry]
name = "matrix-synapse" name = "matrix-synapse"
version = "1.66.0" version = "1.66.0"
@ -82,7 +85,16 @@ include = [
{ path = "sytest-blacklist", format = "sdist" }, { path = "sytest-blacklist", format = "sdist" },
{ path = "tests", format = "sdist" }, { path = "tests", format = "sdist" },
{ path = "UPGRADE.rst", format = "sdist" }, { path = "UPGRADE.rst", format = "sdist" },
{ path = "Cargo.toml", format = "sdist" },
{ path = "rust/Cargo.toml", format = "sdist" },
{ path = "rust/Cargo.lock", format = "sdist" },
{ path = "rust/src/**", format = "sdist" },
] ]
exclude = [
{ path = "synapse/*.so", format = "sdist"}
]
build = "build_rust.py"
[tool.poetry.scripts] [tool.poetry.scripts]
synapse_homeserver = "synapse.app.homeserver:main" synapse_homeserver = "synapse.app.homeserver:main"
@ -161,6 +173,15 @@ importlib_metadata = { version = ">=1.4", python = "<3.8" }
# This is the most recent version of Pydantic with available on common distros. # This is the most recent version of Pydantic with available on common distros.
pydantic = ">=1.7.4" pydantic = ">=1.7.4"
# This is for building the rust components during "poetry install", which
# currently ignores the `build-system.requires` directive (c.f.
# https://github.com/python-poetry/poetry/issues/6154). Both `pip install` and
# `poetry build` do the right thing without this explicit dependency.
#
# This isn't really a dev-dependency, as `poetry install --no-dev` will fail,
# but the alternative is to add it to the main list of deps where it isn't
# needed.
setuptools_rust = ">=1.3"
# Optional Dependencies # Optional Dependencies
@ -285,5 +306,21 @@ twine = "*"
towncrier = ">=18.6.0rc1" towncrier = ">=18.6.0rc1"
[build-system] [build-system]
requires = ["poetry-core>=1.0.0"] requires = ["poetry-core>=1.0.0", "setuptools_rust>=1.3"]
build-backend = "poetry.core.masonry.api" build-backend = "poetry.core.masonry.api"
[tool.cibuildwheel]
# Skip unsupported platforms (by us or by Rust).
skip = "cp36* *-musllinux_i686"
# We need a rust compiler
before-all = "curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain stable -y"
environment= { PATH = "$PATH:$HOME/.cargo/bin" }
# For some reason if we don't manually clean the build directory we
# can end up polluting the next build with a .so that is for the wrong
# Python version.
before-build = "rm -rf {project}/build"
build-frontend = "build"
test-command = "python -c 'from synapse.synapse_rust import sum_as_string; print(sum_as_string(1, 2))'"

21
rust/Cargo.toml Normal file
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@ -0,0 +1,21 @@
[package]
# We name the package `synapse` so that things like logging have the right
# logging target.
name = "synapse"
# dummy version. See pyproject.toml for the Synapse's version number.
version = "0.1.0"
edition = "2021"
rust-version = "1.61.0"
[lib]
name = "synapse"
crate-type = ["cdylib"]
[package.metadata.maturin]
# This is where we tell maturin where to place the built library.
name = "synapse.synapse_rust"
[dependencies]
pyo3 = { version = "0.16.5", features = ["extension-module", "macros", "abi3", "abi3-py37"] }

15
rust/src/lib.rs Normal file
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@ -0,0 +1,15 @@
use pyo3::prelude::*;
/// Formats the sum of two numbers as string.
#[pyfunction]
#[pyo3(text_signature = "(a, b, /)")]
fn sum_as_string(a: usize, b: usize) -> PyResult<String> {
Ok((a + b).to_string())
}
/// The entry point for defining the Python module.
#[pymodule]
fn synapse_rust(_py: Python<'_>, m: &PyModule) -> PyResult<()> {
m.add_function(wrap_pyfunction!(sum_as_string, m)?)?;
Ok(())
}

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@ -0,0 +1 @@
def sum_as_string(a: int, b: int) -> str: ...

11
tests/test_rust.py Normal file
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@ -0,0 +1,11 @@
from synapse.synapse_rust import sum_as_string
from tests import unittest
class RustTestCase(unittest.TestCase):
"""Basic tests to ensure that we can call into Rust code."""
def test_basic(self):
result = sum_as_string(1, 2)
self.assertEqual("3", result)