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-rw-r--r--tvix/store/src/nar/renderer.rs7
1 files changed, 7 insertions, 0 deletions
diff --git a/tvix/store/src/nar/renderer.rs b/tvix/store/src/nar/renderer.rs
index efd67671db70..e3cb54dd229f 100644
--- a/tvix/store/src/nar/renderer.rs
+++ b/tvix/store/src/nar/renderer.rs
@@ -6,6 +6,8 @@ use nix_compat::nar::writer::r#async as nar_writer;
 use sha2::{Digest, Sha256};
 use tokio::io::{self, AsyncWrite, BufReader};
 use tonic::async_trait;
+use tracing::{instrument, Span};
+use tracing_indicatif::span_ext::IndicatifSpanExt;
 use tvix_castore::{
     blobservice::BlobService,
     directoryservice::DirectoryService,
@@ -48,6 +50,7 @@ where
 
 /// Invoke [write_nar], and return the size and sha256 digest of the produced
 /// NAR output.
+#[instrument(skip_all, fields(indicatif.pb_show=1))]
 pub async fn calculate_size_and_sha256<BS, DS>(
     root_node: &castorepb::node::Node,
     blob_service: BS,
@@ -60,6 +63,10 @@ where
     let mut h = Sha256::new();
     let mut cw = CountWrite::from(&mut h);
 
+    let span = Span::current();
+    span.pb_set_message("Calculating NAR");
+    span.pb_start();
+
     write_nar(
         // The hasher doesn't speak async. It doesn't
         // actually do any I/O, so it's fine to wrap.