Fix store delegation for public_url

.gitignore

@@ -4,6 +4,7 @@
 /client-examples/javascript/node_modules
 /docker/object-storage/storage
 /docker/object-storage/pict-rs-garage.toml
+/docker/object-storage/*.log
 /result
 /.ash_history
 /.direnv

src/store.rs

@@ -94,9 +94,7 @@ pub(crate) trait Store: Clone + Debug {
         content_type: mime::Mime,
     ) -> Result<Self::Identifier, StoreError>;
 
-    fn public_url(&self, _: &Self::Identifier) -> Option<url::Url> {
+    fn public_url(&self, _: &Self::Identifier) -> Option<url::Url>;
-        None
-    }
 
     async fn to_stream(
         &self,
@@ -160,6 +158,10 @@ where
         T::save_bytes(self, bytes, content_type).await
     }
 
+    fn public_url(&self, identifier: &Self::Identifier) -> Option<url::Url> {
+        T::public_url(self, identifier)
+    }
+
     async fn to_stream(
         &self,
         identifier: &Self::Identifier,
@@ -231,6 +233,10 @@ where
         T::save_bytes(self, bytes, content_type).await
     }
 
+    fn public_url(&self, identifier: &Self::Identifier) -> Option<url::Url> {
+        T::public_url(self, identifier)
+    }
+
     async fn to_stream(
         &self,
         identifier: &Self::Identifier,

src/store/file_store.rs

@@ -109,6 +109,10 @@ impl Store for FileStore {
         Ok(self.file_id_from_path(path)?)
     }
 
+    fn public_url(&self, _identifier: &Self::Identifier) -> Option<url::Url> {
+        None
+    }
+
     #[tracing::instrument]
     async fn to_stream(
         &self,