diff options
Diffstat (limited to 'tvix/nar-bridge/src/nar.rs')
| -rw-r--r-- | tvix/nar-bridge/src/nar.rs | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/tvix/nar-bridge/src/nar.rs b/tvix/nar-bridge/src/nar.rs index 707c01e4bcda..d88719b02be9 100644 --- a/tvix/nar-bridge/src/nar.rs +++ b/tvix/nar-bridge/src/nar.rs @@ -23,7 +23,8 @@ pub(crate) struct GetNARParams { } #[instrument(skip(blob_service, directory_service))] -pub async fn get( +pub async fn get_head( + method: axum::http::Method, ranges: Option<TypedHeader<Range>>, axum::extract::Path(root_node_enc): axum::extract::Path<String>, axum::extract::Query(GetNARParams { nar_size }): Query<GetNARParams>, @@ -71,8 +72,15 @@ pub async fn get( ("cache-control", "max-age=31536000, immutable"), ("content-type", nix_http::MIME_TYPE_NAR), ], - // If this is a range request, construct a seekable NAR reader - if let Some(TypedHeader(ranges)) = ranges { + if method == axum::http::Method::HEAD { + // If this is a HEAD request, construct a response returning back the + // user-provided content-length, but don't actually talk to castore. + Response::builder() + .header("content-length", nar_size) + .body(Body::empty()) + .unwrap() + } else if let Some(TypedHeader(ranges)) = ranges { + // If this is a range request, construct a seekable NAR reader. let r = tvix_store::nar::seekable::Reader::new(root_node, blob_service, directory_service) .await |