Create Clap application

Cargo.lock

@@ -1,5 +1,253 @@
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Cargo.toml

@@ -3,7 +3,7 @@ name = "rustraceroute"
 version = "0.0.0"
 authors = ["Alex Kotov <kotovalexarian@gmail.com>"]
 edition = "2018"
-description = "rustraceroute - print the route packets trace to network host"
+description = "Print the route packets trace to network host"
 homepage = "https://github.com/kotovalexarian/rustraceroute"
 repository = "https://github.com/kotovalexarian/rustraceroute"
 license = "MIT"
@@ -11,3 +11,4 @@ keywords = ["network"]
 categories = ["command-line-utilities", "network-programming"]
 
 [dependencies]
+clap = "3.0.0-beta.2"

src/main.rs

@@ -1,3 +1,16 @@
-fn main() {
-    println!("Hello, world!");
+use clap::{Clap};
+
+const CRATE_NAME: &str = env!("CARGO_PKG_NAME");
+
+#[derive(Debug, Clap)]
+#[clap(about, author, name = CRATE_NAME, version)]
+struct Options {
+    #[clap(about = "The name or IP address of the destination host")]
+    host: String,
+}
+
+fn main() {
+    let options = Options::parse();
+
+    println!("host: {:?}", options.host);
 }