move get url into own function

Cargo.lock

@@ -1,3 +1,5 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
 [[package]]
 name = "adler32"
 version = "1.0.3"

src/main.rs

@@ -2,7 +2,7 @@ extern crate reqwest;
 extern crate ron;
 extern crate serde;
 
-use reqwest::{Client, Url};
+use reqwest::{Client, Url, UrlError};
 use ron::de::from_str;
 use serde::Deserialize;
 use std::error::Error;
@@ -47,11 +47,7 @@ fn main() -> Result<(), Box<Error>> {
     for website_conf in config.websites {
         for endpoint in website_conf.endpoints {
             let (label, path, port, code, body) = get_endpoint_info(endpoint);
-            let mut url = Url::parse(&website_conf.base)?.join(&path)?;
-            if let Err(e) = url.set_port(port) {
-                println!("{:?}", e);
-            }
-            let url = url.into_string();
+            let url = get_url(&website_conf.base, &path, port)?;
             let mut res = client.get(&url).send()?;
 
             let does_code_match = res.status() == code;
@@ -93,6 +89,14 @@ fn main() -> Result<(), Box<Error>> {
     Ok(())
 }
 
+fn get_url(base: &String, path: &String, port: Option<u16>) -> Result<String, UrlError> {
+    let mut url = Url::parse(base)?.join(path)?;
+    if let Err(e) = url.set_port(port) {
+        println!("{:?}", e);
+    }
+    Ok(url.into_string())
+}
+
 fn get_endpoint_info(endpoint: EndpointConf) -> (String, String, Option<u16>, u16, String) {
     let path = endpoint.endpoint.unwrap_or_default();
     let label = endpoint.label.unwrap_or_else(|| path.clone());