Pass config as reference

src/config/mod.rs

@@ -15,7 +15,7 @@ pub struct Config {
 impl Config {
     fn new(raw: Value) -> Config {
         return Config {
-            input: read::get_input_files(raw),
+            input: read::get_input_files(&raw),
             ..Default::default()
         };
     }

src/config/read.rs

@@ -22,7 +22,7 @@ pub fn read() -> String {
 }
 
 
-pub fn get_input_files(conf: Value) -> Vec<PathBuf> {
+pub fn get_input_files(conf: &Value) -> Vec<PathBuf> {
     let working_dir = current_dir().unwrap();
     let input_values = conf.get("input").unwrap().as_sequence().unwrap().to_vec();
     return input_values.into_iter().map(|x| working_dir.join(x.as_str().unwrap().to_string())).collect();