Read config from disk

src/app.rs

@@ -85,8 +85,8 @@ pub enum Error {
 	#[error("DDNS update URL is invalid")]
 	DDNSUpdateURLInvalid,
 
-	#[error(transparent)]
-	Toml(#[from] toml::de::Error),
+	#[error("Could not deserialize configuration: `{0}`")]
+	ConfigDeserialization(toml::de::Error),
 	#[error("Could not deserialize collection")]
 	IndexDeserializationError,
 	#[error("Could not serialize collection")]

src/app/config.rs

@@ -88,13 +88,28 @@ pub struct Manager {
 
 impl Manager {
 	pub async fn new(config_file_path: &Path, auth_secret: auth::Secret) -> Result<Self, Error> {
-		let config = storage::Config::default(); // TODO read from disk!!
-		let config: Config = config.try_into()?;
+		let config = {
+			if tokio::fs::try_exists(config_file_path)
+				.await
+				.map_err(|e| Error::Io(config_file_path.to_owned(), e))?
+			{
+				let config_content = tokio::fs::read_to_string(config_file_path)
+					.await
+					.map_err(|e| Error::Io(config_file_path.to_owned(), e))?;
+				let config = toml::de::from_str::<storage::Config>(&config_content)
+					.map_err(Error::ConfigDeserialization)?;
+				config.try_into()?
+			} else {
+				Config::default()
+			}
+		};
+
 		let manager = Self {
 			config_file_path: config_file_path.to_owned(),
 			config: Arc::new(RwLock::new(config)),
 			auth_secret,
 		};
+
 		Ok(manager)
 	}
 

src/app/config/storage.rs

@@ -1,12 +1,7 @@
-use std::{
-	io::Read,
-	path::{Path, PathBuf},
-};
+use std::path::PathBuf;
 
 use serde::{Deserialize, Serialize};
 
-use crate::app::Error;
-
 #[derive(Clone, Debug, Default, Eq, PartialEq, Serialize, Deserialize)]
 pub struct User {
 	pub name: String,
@@ -37,16 +32,3 @@ pub struct Config {
 	#[serde(skip_serializing_if = "Vec::is_empty")]
 	pub users: Vec<User>,
 }
-
-impl Config {
-	pub fn from_path(path: &Path) -> Result<Self, Error> {
-		let mut config_file =
-			std::fs::File::open(path).map_err(|e| Error::Io(path.to_owned(), e))?;
-		let mut config_file_content = String::new();
-		config_file
-			.read_to_string(&mut config_file_content)
-			.map_err(|e| Error::Io(path.to_owned(), e))?;
-		let config = toml::de::from_str::<Self>(&config_file_content)?;
-		Ok(config)
-	}
-}

src/server/error.rs

@@ -123,7 +123,7 @@ impl From<app::Error> for APIError {
 			app::Error::DDNSUpdateURLInvalid => APIError::InvalidDDNSURL,
 			app::Error::IndexAlbumArtPatternInvalid => APIError::InvalidAlbumArtPattern,
 
-			app::Error::Toml(_) => APIError::Internal,
+			app::Error::ConfigDeserialization(_) => APIError::Internal,
 			app::Error::IndexDeserializationError => APIError::Internal,
 			app::Error::IndexSerializationError => APIError::Internal,