Add base sdk

src/cli.rs

@@ -0,0 +1,22 @@
+pub struct Cli {
+    cmd: clap::Command,
+}
+
+impl Cli {
+    pub fn new() -> eyre::Result<Self> {
+        Ok(Self {
+            cmd: clap::Command::new("dagger-rust")
+                .subcommand_required(true)
+                .subcommand(clap::Command::new("generate")),
+        })
+    }
+
+    pub fn execute(self, args: &[&str]) -> eyre::Result<()> {
+        let matches = self.cmd.get_matches_from(args);
+
+        match matches.subcommand() {
+            Some(("generate", args)) => Ok(()),
+            _ => eyre::bail!("command missing"),
+        }
+    }
+}