Move config init completely into config module

src/config.rs

@@ -2,6 +2,10 @@ use serde::{
     Deserialize,
     Serialize,
 };
+use structopt::{
+    StructOpt,
+    clap::ArgMatches,
+};
 use std::{
     net::IpAddr,
     path::PathBuf,
@@ -21,21 +25,36 @@ pub struct Config {
 }
 
 impl Config {
-    pub async fn get(options: &Options) -> std::io::Result<Self> {
-        if options.no_config {
-            Ok(Config::default())
+    pub async fn get_with_options(clap_matches: ArgMatches<'_>) -> std::io::Result<(Self, Options)> {
+        let options = Options::from_clap(&clap_matches);
+        let mut config = if options.no_config {
+            Config::default()
         } else {
             let mut config_file = File::open(&options.config).await?;
             let mut config_string = String::new();
             config_file.read_to_string(&mut config_string).await?;
-    
+
             toml::from_str(&config_string)
                 .map_err(|err| std::io::Error::new(
                     std::io::ErrorKind::InvalidData,
                     err
                 )
-            )
+            )?
+        };
+
+        if clap_matches.occurrences_of("database-path") > 0 {
+            config.database_path = options.database_path.clone();
         }
+    
+        if clap_matches.occurrences_of("ip-address") > 0 {
+            config.ip_address = options.ip_address;
+        }
+    
+        if clap_matches.occurrences_of("port") > 0 {
+            config.port = options.port;
+        }
+
+        Ok((config, options))
     }
 }
 

src/main.rs

@@ -31,28 +31,15 @@ const DEFAULT_PORT_STR: &'static str = "80";
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn Error>> {
-    let clap_matches = Options::clap().get_matches();
-    let options = Options::from_clap(&clap_matches);
+    let (config, options) = Config::get_with_options(
+        Options::clap().get_matches()
+    ).await?;
 
     if options.generate_config {
-        println!("{}", toml::to_string_pretty(&Config::default())?);
+        println!("{}", toml::to_string_pretty(&config)?);
         return Ok(());
     }
 
-    let mut config = Config::get(&options).await?;
-
-    if clap_matches.occurrences_of("database-path") > 0 {
-        config.database_path = options.database_path.clone();
-    }
-
-    if clap_matches.occurrences_of("ip-address") > 0 {
-        config.ip_address = options.ip_address;
-    }
-
-    if clap_matches.occurrences_of("port") > 0 {
-        config.port = options.port;
-    }
-
     dbg!(&config);
 
     #[cfg(feature = "sqlite")]