Add a function for parsing arguments

minigrep/src/main.rs

@@ -4,8 +4,7 @@ use std::fs;
 fn main() {
     let args: Vec<String> = env::args().collect();
 
-    let query = &args[1];
-    let file_path = &args[2];
+    let (query, file_path) = parse_config(&args);
 
     println!("Searching for {query}");
     println!("In file {file_path}");
@@ -15,3 +14,10 @@ fn main() {
 
     println!("With text:\n{contents}");
 }
+
+fn parse_config(args: &[String]) -> (&str, &str) {
+    let query = &args[1];
+    let file_path = &args[2];
+
+    (query, file_path)
+}