optify 1.2.0

Simplifies getting the right configuration options for a process using pre-loaded configurations from files (JSON, YAML, etc.) to manage options for experiments or flights. This library is mainly made to support building implementations for other languages such as Node.js, Python, and Ruby. It is not meant to be consumed directly yet.
Documentation 
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use criterion::{black_box, criterion_group, criterion_main, Criterion};
use optify::builder::OptionsProviderBuilder;
use optify::builder::OptionsRegistryBuilder;
use std::fs;
use std::io::Write;
use std::path::Path;

struct TestDirGuard {
    dir: &'static Path,
}

impl TestDirGuard {
    fn new(dir: &'static Path) -> Self {
        Self { dir }
    }
}

impl Drop for TestDirGuard {
    fn drop(&mut self) {
        cleanup_test_files(self.dir);
    }
}

fn create_test_files(dir: &Path, num_files: usize) {
    cleanup_test_files(dir);
    fs::create_dir_all(dir).unwrap();

    for i in 0..num_files / 2 {
        let file_path = dir.join(format!("test_{i}.json"));
        let mut file = fs::File::create(&file_path).unwrap();

        // Create a test configuration file with some realistic content
        let content = format!(
            r#"{{
    "metadata": {{
        "aliases": ["alias_{i}_1", "alias_{i}_2"]
    }},
    "options": {{
        "setting1": "value1",
        "setting2": {{
            "existing_value": "exists",
            "value{i}": "abc"
        }},
        "setting3": true,
        "nested": {{
            "field1": "nested_value",
            "field2": [1, 2, 3]
        }}
    }}
}}"#,
        );

        file.write_all(content.as_bytes()).unwrap();
    }

    for i in num_files / 2..num_files {
        let file_path = dir.join(format!("test_{i}.yaml"));
        let mut file = fs::File::create(&file_path).unwrap();
        let imports = if i > (num_files / 2 + 3) {
            format!(
                "imports:
  - test_{}
",
                i - 1
            )
        } else {
            "".to_string()
        };

        let content = format!(
            r#"metadata:
    aliases:
        - alias_y_{i}_1
        - alias_y_{i}_2
{imports}
options:
    setting1: value1
    setting2:
      existing_value: "exists"
      value{i}: "abc"
    setting3: true
    setting{i}:
      value{i}: 32
    nested:
      field1: nested_value
      field2: [1, 2, 3]
"#
        );
        file.write_all(content.as_bytes()).unwrap();
    }
}

fn cleanup_test_files(dir: &Path) {
    fs::remove_dir_all(dir).unwrap_or_default();
}

fn benchmark_loading(c: &mut Criterion) {
    let test_dir = Path::new("bench_test_files");
    let num_files = 100;
    let _guard = TestDirGuard::new(test_dir);

    create_test_files(test_dir, num_files);

    let mut group = c.benchmark_group(format!("loading-{num_files}"));

    group.bench_function("parallel loading", |b| {
        b.iter(|| {
            let mut builder = OptionsProviderBuilder::new();
            builder.add_directory(black_box(test_dir)).unwrap();
            // Ensure that there are no errors in the builder.
            builder.build().unwrap();
        })
    });

    group.finish();
}

criterion_group!(benches, benchmark_loading);
criterion_main!(benches);