chore: move RepositoryError into dedicated file

src/domain/errors.rs

@@ -0,0 +1,23 @@
+use std::fmt::Display;
+
+use thiserror::Error;
+
+#[derive(Debug, Error)]
+pub enum RepositoryError {
+    #[error("entity not found")]
+    NotFound,
+    #[error("conflict: {0}")]
+    Conflict(String),
+    #[error("unexpected data store error: {0}")]
+    Unexpected(String),
+}
+
+impl RepositoryError {
+    pub fn conflict<T: Display>(message: T) -> Self {
+        Self::Conflict(message.to_string())
+    }
+
+    pub fn unexpected<T: Display>(message: T) -> Self {
+        Self::Unexpected(message.to_string())
+    }
+}

src/domain/mod.rs

@@ -1,4 +1,5 @@
 pub mod bags;
+pub mod errors;
 pub mod ids;
 pub mod listing;
 pub mod repositories;
@@ -8,28 +9,5 @@ pub mod sessions;
 pub mod timeline;
 pub mod tokens;
 pub mod users;
-use std::fmt::Display;
 
-use thiserror::Error;
+pub use errors::RepositoryError;
-
-// TODO: This should probably be in a file named errors.rs
-// so that it's domain::errors::RepositoryError.
-#[derive(Debug, Error)]
-pub enum RepositoryError {
-    #[error("entity not found")]
-    NotFound,
-    #[error("conflict: {0}")]
-    Conflict(String),
-    #[error("unexpected data store error: {0}")]
-    Unexpected(String),
-}
-
-impl RepositoryError {
-    pub fn conflict<T: Display>(message: T) -> Self {
-        Self::Conflict(message.to_string())
-    }
-
-    pub fn unexpected<T: Display>(message: T) -> Self {
-        Self::Unexpected(message.to_string())
-    }
-}