Replace config with envious

src/main.rs

@@ -2,7 +2,6 @@ use std::{net::SocketAddr, path::PathBuf, sync::Arc};
 
 use axum::Router;
 use base64::{engine::general_purpose, Engine};
-use config::{Config, ConfigError};
 use jwt_simple::prelude::HS256Key;
 use migration::{Migrator, MigratorTrait};
 use sea_orm::{ConnectOptions, Database, DatabaseConnection};
@@ -66,29 +65,37 @@ impl<'de> Deserialize<'de> for Base64 {
     }
 }
 
+fn default_host() -> String {
+    "0.0.0.0".into()
+}
+
+fn default_port() -> u16 {
+    8085
+}
+
 #[derive(Deserialize, Debug)]
+#[serde(rename_all = "UPPERCASE")]
 struct Settings {
     jwt_secret: Base64,
+    #[serde(default = "default_host")]
     host: String,
+    #[serde(default = "default_port")]
     port: u16,
+    #[serde(default)]
     api_allowed: Option<String>,
+    #[serde(default)]
     serve_app: Option<PathBuf>,
     database_url: String,
+    #[serde(default)]
     sqlx_logging: bool,
 }
 
 impl Settings {
-    pub fn new() -> Result<Self, ConfigError> {
-        let cfg = Config::builder()
-            .add_source(config::Environment::with_prefix("REGALADE"))
-            .set_default("host", "0.0.0.0")?
-            .set_default("port", "8085")?
-            .set_default("api_allowed", None::<String>)?
-            .set_default("serve_app", None::<String>)?
-            .set_default("sqlx_logging", false)?
-            .build()?;
-
-        cfg.try_deserialize()
+    pub fn new() -> Result<Self, envious::EnvDeserializationError> {
+        envious::Config::default()
+            .with_prefix("REGALADE_")
+            .case_sensitive(true)
+            .build_from_env()
     }
 }