First steps: Setup module.

.gitignore

@@ -3,3 +3,4 @@
 Cargo.lock
 *.key
 *.log
+*.yaml

Cargo.toml

@@ -13,6 +13,7 @@ concrete = { git = "https://github.com/fakub/concrete", branch = "easy_noise", f
 colored = "2.0.0"
 chrono = "^0.4.0"
 itertools = "^0.10.3"
+yaml-rust = "^0.4.5"
 
 [features]
 default = ["manual"]        # 'manual' feature selected by default

src/main.rs

@@ -11,6 +11,7 @@ extern crate chrono;
 mod params;
 mod keys;
 mod constants_param_ranges;
+mod setup;
 mod misc;
 
 #[cfg(feature = "numerical")]
@@ -18,6 +19,8 @@ use params::*;
 #[cfg(feature = "manual")]
 use constants_param_ranges::*;
 
+use setup::*;
+
 // resolve mutually exclusive features
 #[cfg(all(feature = "manual", feature = "numerical"))]
 compile_error!("Features 'manual' and 'numerical' cannot be enabled at the same time.");
@@ -35,6 +38,11 @@ const  NOISES_FILE_EXT:    &str = "dat";
 
 fn main() -> Result<(), Box<dyn Error>> {
 
+    // load setup
+    let stp = Setup::new("setup.yaml")?;
+    //DBG
+    println!("(?) ====    SETUP LOAD END    ====\n");
+
     // generate all params
     #[cfg(feature = "numerical")]
     let all_pars = Params::gen_all();

src/setup.rs

+use std::error::Error;
+use std::path::Path;
+use std::fs;
+
+use crate::constants_param_ranges::*;
+
+extern crate yaml_rust;
+use yaml_rust::YamlLoader;   // YamlEmitter
+
+#[derive(Clone,Debug)]
+pub struct Setup {
+    // experiment setup
+    pub n_repeat: usize,
+    //~ pub n_top_bs_times: usize,
+    //~ pub n_top_v_maxes: usize,
+    // ranges
+}
+
+impl Setup {
+
+    /// Load experiment setup (or use default values)
+    pub fn new(setup_filename:  &str) -> Result<Setup, Box<dyn Error>> {
+        // create Setup struct with default values
+        let mut stp = SETUP_DEFAULT.clone();
+
+        if Path::new(setup_filename).is_file() {
+            println!("(i) Loading setup from '{}' ...", setup_filename);
+
+            let yaml_str = fs::read_to_string(setup_filename)?;
+            let docs = YamlLoader::load_from_str(&yaml_str)?;
+            let setup_map = &docs[0];
+
+            //DBG
+            println!("(?) setup_map:\n{:?}\n\n", setup_map);
+            println!("(?) setup_struct:\n{:?}\n\n", stp);
+
+            if let Some(n_repeat) = setup_map["n_repeat"].as_i64() {
+                stp.n_repeat = n_repeat as usize;
+            } else {
+                //DBG
+            }
+
+            //DBG
+            println!("(?) setup_struct:\n{:?}\n\n", stp);
+
+        } else {
+            eprintln!("(!) Setup file '{}' does not exist.", setup_filename);
+        }
+
+        Ok(stp)
+    }
+}
+
+pub const SETUP_DEFAULT: Setup = Setup {
+    n_repeat: N_REPEAT,
+};