Implements automated build numbering

Introduces a build script to automatically increment a build number with each compilation.
This number is combined with the semantic version to create a full version string.
The full version is then exposed to the application and logged at startup, providing a unique identifier for each build to aid in tracking and debugging.

src/rustylee/Cargo.toml

@@ -2,6 +2,7 @@
 name = "rustylee"
 version = "0.1.0"
 edition = "2024"
+build = "build.rs"
 
 [dependencies]
 ctrlc = "3.5.2"

src/rustylee/build.rs

@@ -0,0 +1,14 @@
+use std::fs;
+
+fn main() {
+    let pkg_version = env!("CARGO_PKG_VERSION");
+    let mut content = fs::read_to_string("build_number.txt").unwrap_or("0".to_string());
+    let mut build_num: u32 = content.trim().parse().unwrap_or(0);
+
+    build_num += 1;
+    let full_version = format!("{}.{}", pkg_version, build_num);
+
+    fs::write("build_number.txt", build_num.to_string()).unwrap();
+
+    println!("cargo:rustc-env=FULL_VERSION={}", full_version);
+}

src/rustylee/build_number.txt

@@ -0,0 +1 @@
+98

src/rustylee/src/main.rs

@@ -7,10 +7,12 @@ use std::sync::mpsc::{self, Receiver, Sender};
 use std::{thread, time::Duration};
 
 fn main() {
+    let semantic_version = env!("CARGO_PKG_VERSION").to_string();
     let shutdown_requested = Arc::new(AtomicBool::new(false));
     let s = shutdown_requested.clone();
 
     setup_logging();
+    info!("RustyLee: {}", env!("FULL_VERSION"));
 
     ctrlc::set_handler(move || {
         info!("[Signal] Shutdown signal caught!");