feat: add binary crate

.gitignore

@@ -25,7 +25,7 @@ __pycache__/
 .Python
 .venv/
 env/
-bin/
+/bin/
 build/
 develop-eggs/
 dist/

Cargo.toml

@@ -12,10 +12,12 @@ name = "cygv"
 crate-type = ["lib", "cdylib"]
 
 [dependencies]
+clap = { version = "4.5.16", features = ["derive"] }
 ctrlc = "3.4.4"
 itertools = "0.13.0"
 nalgebra = "0.33.0"
 rug = "1.25.0"
+yaml-rust2 = "0.8"
 
 [dependencies.pyo3]
 version = "0.22.2"

src/bin/cygv/main.rs

@@ -0,0 +1,41 @@
+use clap::Parser;
+use std::fs;
+use std::io::{self, Read};
+use yaml_rust2::YamlLoader;
+
+/// Compute GV and GW invariants of CY manifold specified by the input file
+#[derive(Parser, Debug)]
+#[command(version, about, long_about = None)]
+struct Args {
+    /// Input file
+    #[arg(short, long, default_value_t = String::from("stdin"))]
+    file: String,
+    /// Output file
+    #[arg(short, long, default_value_t = String::from("stdout"))]
+    output: String,
+}
+
+fn main() {
+    let args = Args::parse();
+
+    let input_str = if args.file == "stdin" {
+        let mut input = String::new();
+        io::stdin()
+            .read_to_string(&mut input)
+            .expect("Failed to read from stdin");
+        input
+    } else {
+        fs::read_to_string(&args.file)
+            .unwrap_or_else(|_| panic!("Failed to read from file {}", args.file))
+    };
+
+    let input_data = YamlLoader::load_from_str(&input_str).expect("Failed to parse YAML");
+
+    for cy in input_data {
+        println!("{:?}", cy);
+
+        // get cy data
+
+        // save or print out invariants
+    }
+}

src/io.rs

@@ -0,0 +1 @@
+//! Input and output functions

src/lib.rs

@@ -4,6 +4,7 @@ pub mod factorial;
 pub mod fundamental_period;
 pub mod hkty;
 pub mod instanton;
+pub mod io;
 pub mod misc;
 pub mod polynomial;
 pub mod pool;