add files required to compile rust code and use as Python module - example rust lib, not required in this iteration

Author: bieli

.gitignore

@@ -158,3 +158,4 @@ cython_debug/
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 .idea/
+.vscode/

Cargo.toml

@@ -1,21 +1,30 @@
 [package]
 name = "iotext"
+authors = ["Marcin Bielak <marcin.bieli@gmail.com>"]
 version = "0.1.0"
 rust-version = "1.57.0"
 edition = "2021"
 
 [lib]
-name = "_iotext"
+name = "iotext"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = { version = "0.19.2", features = ["auto-initialize", "extension-module"] }
+pyo3 = { version = "0.19.2", features = ["extension-module"] }
 iotext_rs = { git = "https://github.com/bieli/IoText-rs.git" }
+rayon = "1.0.2"
+
+#[lib]
+#name = "_iotext"
+#crate-type = ["cdylib"]
+
+#pyo3 = { version = "0.19.2", features = ["auto-initialize", "extension-module"] }
+#iotext_rs = { git = "https://github.com/bieli/IoText-rs.git" }
 # dependencies
-fancy-regex = "0.11.0"
-regex = "1.9.4"
-rustc-hash = "1.1.0"
-bstr = "1.6.1"
+#fancy-regex = "0.11.0"
+#regex = "1.9.4"
+#rustc-hash = "1.1.0"
+#bstr = "1.6.1"
 
-[profile.release]
-incremental = true
+#[profile.release]
+#incremental = true

iotext/__init__.py

@@ -0,0 +1,5 @@
+from .iotext import search
+
+__all__ = [
+    "search"
+]

noxfile.py

@@ -0,0 +1,18 @@
+import nox
+
+nox.options.sessions = ["test"]
+
+
+@nox.session
+def test(session):
+    session.install("-rrequirements-dev.txt")
+    session.install("maturin")
+    session.run_always("maturin", "develop")
+    session.run("pytest")
+
+
+@nox.session
+def bench(session):
+    session.install("-rrequirements-dev.txt")
+    session.install(".")
+    session.run("pytest", "--benchmark-enable")

requirements-dev.txt

@@ -1,3 +1,4 @@
+nox
 mypy
 black==22.3.0
 parameterized==0.9.0

src/lib.rs

@@ -2,18 +2,31 @@
 #![allow(clippy::borrow_deref_ref)]
 
 use pyo3::prelude::*;
+use rayon::prelude::*;
 
-/// Formats the sum of two numbers as string.
+/// Searches for the word, parallelized by rayon
 #[pyfunction]
-fn sum_as_string(a: usize, b: usize) -> PyResult<String> {
-    Ok((a + b).to_string())
+fn search(contents: &str, needle: &str) -> usize {
+    contents
+        .par_lines()
+        .map(|line| count_line(line, needle))
+        .sum()
+}
+
+/// Count the occurrences of needle in line, case insensitive
+fn count_line(line: &str, needle: &str) -> usize {
+    let mut total = 0;
+    for word in line.split(' ') {
+        if word == needle {
+            total += 1;
+        }
+    }
+    total
 }
 
-/// 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 string_sum(_py: Python<'_>, m: &PyModule) -> PyResult<()> {
-    m.add_function(wrap_pyfunction!(sum_as_string, m)?)?;
+fn iotext(_py: Python<'_>, m: &PyModule) -> PyResult<()> {
+    m.add_function(wrap_pyfunction!(search, m)?)?;
+ 
     Ok(())
 }