diff --git a/pyproject.toml b/pyproject.toml
index 8b2b5060b1..7cc9de5bc7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -52,6 +52,9 @@ include_trailing_comma = true
combine_as_imports = true
skip_gitignore = true
+[tool.maturin]
+manifest-path = "rust/Cargo.toml"
+
[tool.poetry]
name = "matrix-synapse"
version = "1.66.0"
@@ -82,8 +85,17 @@ include = [
{ path = "sytest-blacklist", format = "sdist" },
{ path = "tests", 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]
synapse_homeserver = "synapse.app.homeserver:main"
synapse_worker = "synapse.app.generic_worker: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.
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
@@ -285,5 +306,21 @@ twine = "*"
towncrier = ">=18.6.0rc1"
[build-system]
-requires = ["poetry-core>=1.0.0"]
+requires = ["poetry-core>=1.0.0", "setuptools_rust>=1.3"]
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))'"
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