Parse basic args

src/main.rs

@@ -1,3 +1,15 @@
-fn main() {
-    println!("Hello, world!");
+use std::path::PathBuf;
+
+use clap::Parser;
+
+#[derive(Debug, Parser)]
+struct Args {
+    /// Path to a git repository.
+    #[arg(default_value = ".")]
+    repo: PathBuf,
+}
+
+fn main() {
+    let args = Args::parse();
+    println!("Args: {args:#?}");
 }