init cli

Cargo.toml

@@ -5,3 +5,4 @@ authors = ["lastlink <theefunk@gmail.com>"]
 edition = "2018"
 
 [dependencies]
+clap = "*"

src/main.rs

@@ -1,16 +1,32 @@
+use clap::*;
 fn main() {
-    println!("Hello, world!");
-
-    let pattern = std::env::args().nth(1).expect("no pattern given");
-    let path = std::env::args().nth(2).expect("no path given");
-    let args = Cli {
-      pattern: pattern,
-      //path: std::path::PathBuf::from(path),
-  };
-    println!("{}",args.pattern)
+  let app = App::new("sclient")
+    .arg(Arg::with_name("pattern")
+      .long("pattern")
+      .takes_value(true)
+      .required(true)
+      )
+      .arg(Arg::with_name("servername")
+      .long("servername")
+      .takes_value(true)
+      .required(true)
+      )
+      .arg(Arg::with_name("k")
+      .short("k")
+      .takes_value(true)
+      .required(true)
+      );
+    // println!("Hello, world!");
+//
+let matches = app.get_matches();
+    println!("{}",matches.value_of("pattern").unwrap());
 }
 
 // cargo run test
+// cargo build
+// cargo run -- --help
+// target/debug/sclient --help
+// target/debug/sclient --pattern=kevin
 
 struct Cli {
     pattern: String,