Move argument parsing in separate module

src/cli.rs

@@ -0,0 +1,17 @@
+use clap::Parser;
+
+#[derive(Parser)]
+#[command(version, about)]
+pub struct Cli {
+    /// SpaceAPI endpoint
+    #[arg(short, long)]
+    pub url: String,
+
+    /// Period of querying, in seconds
+    #[arg(short, long, default_value_t = 300)]
+    pub delay: u64,
+}
+
+pub fn parse() -> Cli {
+    Cli::parse()
+}

src/main.rs

@@ -1,18 +1,5 @@
-use clap::Parser;
-
 mod client;
-
-#[derive(Parser)]
-#[command(version, about)]
-struct Cli {
-    /// SpaceAPI endpoint
-    #[arg(short, long)]
-    url: String,
-
-    /// Period of querying, in seconds
-    #[arg(short, long, default_value_t = 300)]
-    delay: u64,
-}
+mod cli;
 
 use std::sync::{Arc, Mutex};
 type Body = Arc<Mutex<String>>;
@@ -21,7 +8,7 @@ use rocket::{get, launch, routes, State};
 
 #[launch]
 fn rocket() -> _ {
-    let cli = Cli::parse();
+    let cli = cli::parse();
 
     let body: Body = Arc::new(Mutex::new(String::new()));
     let body_state = body.clone();