feat: add version

build.rs

@@ -0,0 +1,13 @@
+fn commit_hash() -> String {
+    let output = std::process::Command::new("git")
+        .args(["rev-parse", "--short", "HEAD"])
+        .output()
+        .unwrap();
+    String::from_utf8(output.stdout).unwrap()
+}
+
+fn main() {
+    let hash = commit_hash();
+    println!("cargo:rerun-if-env-changed=COMMIT_HASH");
+    println!("cargo:rustc-env=COMMIT_HASH={}", hash);
+}

src/main.rs

@@ -14,6 +14,24 @@ fn main() -> Result<()> {
     let start_time = Instant::now();
     log::init_logger();
 
+    // Version
+    let args: Vec<String> = std::env::args().collect();
+    if args.contains(&"-v".to_string()) || args.contains(&"--version".to_string()) {
+        let commit_hash = env!("COMMIT_HASH");
+
+        println!(
+            "{} {}{}",
+            env!("CARGO_PKG_NAME"),
+            env!("CARGO_PKG_VERSION"),
+            if commit_hash.is_empty() {
+                "".to_string()
+            } else {
+                format!(" ({})", commit_hash).to_string()
+            }
+        );
+        return Ok(());
+    }
+
     let args = Args::parse();
 
     if !args.no_keep_awake {