Parse cli args

src/main.rs

@@ -1,3 +1,26 @@
-fn main() {
-    println!("Hello, world!");
+use std::path::PathBuf;
+
+use clap::Parser;
+
+#[derive(Debug, clap::Parser)]
+struct BwCmd {}
+
+#[derive(Debug, clap::Parser)]
+enum Cmd {
+    Bw(BwCmd),
+}
+
+#[derive(Debug, clap::Parser)]
+struct Args {
+    #[arg(long, short)]
+    r#in: Option<PathBuf>,
+    #[arg(long, short)]
+    out: Option<PathBuf>,
+    #[command(subcommand)]
+    cmd: Cmd,
+}
+
+fn main() {
+    let args = Args::parse();
+    println!("{args:#?}");
 }