PyO3 experiment

Cargo.toml

@@ -0,0 +1,10 @@
+[workspace]
+members = [
+    "c-questdb-client/questdb-rs-ffi",
+    "pystr-to-utf8",
+    "egress"
+]
+exclude = [
+    "c-questdb-client/system_test/tls_proxy"
+]
+resolver = "2"

RELEASING.rst

@@ -97,7 +97,7 @@ Inside the VM, open a terminal (or use the terminal Window in VSCode) and run th
     /Library/Frameworks/Python.framework/Versions/3.8/bin/python3 \
         -m pip install -U pip
     /Library/Frameworks/Python.framework/Versions/3.8/bin/python3 \
-        -m pip install -U setuptools wheel twine Cython cibuildwheel pandas numpy pyarrow
+        -m pip install -U setuptools setuptools-rust wheel twine Cython cibuildwheel pandas numpy pyarrow
 
 Smoke-testing the build
 -----------------------

ci/pip_install_deps.py

@@ -65,6 +65,7 @@ def main(args):
     ensure_timezone()
     pip_install('pip')
     pip_install('setuptools')
+    pip_install('setuptools-rust')
     try_pip_install('fastparquet>=2023.10.1')
 
     if args.pandas_version is not None and args.pandas_version != '':

dev_requirements.txt

@@ -3,10 +3,10 @@ Cython>=0.29.32
 wheel>=0.34.2
 cibuildwheel>=2.11.2
 Sphinx>=5.0.2
-sphinx-rtd-theme>=1.0.0
 twine>=4.0.1
 bump2version>=1.0.1
 pandas>=1.3.5
 numpy>=1.21.6
 pyarrow>=10.0.1
 fastparquet>=2023.10.1
+setuptools-rust>=1.9.0

egress/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "egress"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+pyo3 = { version = "0.21.1", features = ["extension-module"] }
+
+[lib]
+name = "questdb_egress"
+crate-type = ["cdylib"]

egress/build.rs

@@ -0,0 +1,9 @@
+use std::env;
+
+fn main() {
+    let target = env::var("TARGET").unwrap();
+    if target.contains("apple-darwin") {
+        println!("cargo:rustc-link-arg=-Wl,-undefined");
+        println!("cargo:rustc-link-arg=-Wl,dynamic_lookup");
+    }
+}

egress/src/lib.rs

@@ -0,0 +1,16 @@
+use pyo3::prelude::*;
+
+/// Formats the sum of two numbers as string.
+#[pyfunction]
+fn sum_as_string(a: usize, b: usize) -> PyResult<String> {
+    Ok((a + b).to_string())
+}
+
+/// A Python module implemented in Rust. The name of this function must match
+/// the `lib.name` setting in the `Cargo.toml`, else Python will not be able to
+/// import the module.
+#[pymodule]
+fn egress(m: &Bound<'_, PyModule>) -> PyResult<()> {
+    m.add_function(wrap_pyfunction!(sum_as_string, m)?)?;
+    Ok(())
+}

proj.py

@@ -8,7 +8,6 @@
 import subprocess
 import shlex
 import pathlib
-import glob
 import platform
 
 PROJ_ROOT = pathlib.Path(__file__).parent
@@ -233,11 +232,13 @@ def sdist():
 
 @command
 def clean():
+    _rmtree(PROJ_ROOT / 'target')
     _rmtree(PROJ_ROOT / 'build')
     _rmtree(PROJ_ROOT / 'dist')
     _rmtree(PROJ_ROOT / 'c-questdb-client' / 'questdb-rs-ffi' / 'target')
     _rmtree(PROJ_ROOT / 'c-questdb-client' / 'build')
     _rmtree(PROJ_ROOT / 'pystr-to-utf8' / 'target')
+    _rmtree(PROJ_ROOT / 'egress' / 'target')
     _rmtree(PROJ_ROOT / 'src' / 'questdb.egg-info')
     _rmtree(PROJ_ROOT / 'venv')
     _rmtree(PROJ_ROOT / 'wheelhouse')