[Minigrep] - stopped panicking and adding results

minigrep/src/main.rs

@@ -1,22 +1,26 @@
 use std::env;
 use std::fs;
+use std::os::unix::process;
 struct Config {
     query: String,
     file_path: String,
 }
 impl Config {
-    fn new(args: &[String]) -> Config {
+    fn build(args: &[String]) -> Result<Config, &'static str> {
         if args.len() < 3 {
-            panic!("not enough arguments");
+            return Err("not enough arguments");
         }
         let query = args[1].clone();
         let file_path = args[2].clone();
-        Config { query, file_path }
+        Ok(Config { query, file_path })
     }
 }
 fn main() {
     let args: Vec<String> = env::args().collect();
-    let config = Config::new(&args);
+    let config = Config::build(&args).unwrap_or_else(|err| {
+        println!("problem parsing arguments: {err}");
+        std::process::exit(1);
+    });
 
     println!("Searching for {}", config.query);
     println!("In file {}", config.file_path);