Move more sauce common code into get_arg_sauces

src/commands/download.rs

@@ -7,7 +7,6 @@ use std::fs::File;
 use std::fs::{create_dir, rename, write};
 use std::io::Write;
 use std::path::Path;
-use std::process::exit;
 use std::sync::Arc;
 use tokio::sync::Mutex;
 use tokio::task::JoinHandle;
@@ -19,11 +18,7 @@ const DOWNLOAD_WORKERS: usize = 5;
 const FAIL_DOWNLOAD_WAIT_TIME: u64 = 5000;
 
 pub async fn run(args: env::Args) {
-    let sauces = utils::get_arg_sauces(args).unwrap();
-    if sauces.len() < 1 {
-        eprintln!("Missing sauce(s)");
-        exit(1);
-    }
+    let sauces = utils::get_arg_sauces(args);
     let client = api::get_client();
     let mut pages_vec: Vec<(String, String)> = Vec::new();
     {

src/commands/view.rs

@@ -9,11 +9,7 @@ extern crate reqwest;
 extern crate tokio;
 
 pub async fn run(args: env::Args) {
-    let sauces = utils::get_arg_sauces(args).unwrap();
-    if sauces.len() < 1 {
-        eprintln!("Missing sauce(s)");
-        exit(1);
-    }
+    let sauces = utils::get_arg_sauces(args);
     let client = api::get_client();
     let mut handles: Vec<JoinHandle<(structs::GalleryInfo, i32)>> =
         Vec::with_capacity(sauces.len());

src/main.rs

@@ -9,6 +9,6 @@ fn main() {
     tokio::runtime::Builder::new_multi_thread()
         .enable_all()
         .build()
-        .unwrap()
+        .expect("failed to build tokio runtime")
         .block_on(commands::run());
 }

src/utils.rs

@@ -1,17 +1,26 @@
 use std::env;
 
-pub fn get_arg_sauces(args: env::Args) -> Result<Vec<i32>, String> {
+use std::process::exit;
+
+pub fn get_arg_sauces(args: env::Args) -> Vec<i32> {
     let mut sauces: Vec<i32> = Vec::new();
+
     for sauce in args {
         let sauce: i32 = match sauce.parse() {
             Ok(sauce) => sauce,
             Err(_) => {
-                return Err(format!("{} is not a number/sauce", sauce));
+                eprintln!("{} is not a number/sauce", sauce);
+                exit(1);
             }
         };
         if !sauces.contains(&sauce) {
             sauces.push(sauce);
         }
     }
-    Ok(sauces)
+
+    if sauces.len() < 1 {
+        eprintln!("Missing sauce(s)");
+        exit(1);
+    }
+    sauces
 }