move config things to config.rs

src/main.rs

@@ -1,8 +1,6 @@
 use std::error::Error;
 
 use axum::Router;
-use dotenvy::var;
-use log::LevelFilter;
 use sqlx::PgPool;
 use tokio::net::TcpListener;
 
@@ -17,9 +15,6 @@ mod tags;
 mod users;
 mod web;
 
-/// Mnemosyne, the mother of the nine muses
-const DEFAULT_PORT: u16 = 0x9999; // 39321
-
 /// The string to be returned alongside HTTP 500
 const ISE_MSG: &str = "Internal server error";
 
@@ -30,31 +25,16 @@ pub struct MnemoState {
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn Error>> {
-    if let Err(e) = dotenvy::dotenv()
-        && !e.not_found()
-    {
-        return Err(e.into());
-    }
-    env_logger::builder()
-        .filter_level(LevelFilter::Info)
-        .filter_module("sqlx", LevelFilter::Warn)
-        .parse_default_env()
-        .format(config::envlogger_write_format)
-        .init();
+    config::dotenv()?;
+    config::env_logger()?;
 
-    let pool = PgPool::connect(var("DATABASE_URL")?.as_str()).await?;
+    let pool = config::init_pool().await?;
     sqlx::migrate!("src/database/migrations").run(&pool).await?;
     log::info!("Migrations applied successfully.");
     users::auth::init_password_dummies();
     users::setup::initialise_reserved_users_if_needed(&pool).await?;
 
-    let port = match std::env::var("PORT") {
-        Ok(p) => p.parse::<u16>()?,
-        Err(e) => match e {
-            std::env::VarError::NotPresent => DEFAULT_PORT,
-            _ => return Err(e)?,
-        },
-    };
+    let port = config::port()?;
     let r = Router::new()
         .merge(api::api_router())
         .merge(web::web_router())