try to fix fd issues

src/uploader.rs

@@ -32,21 +32,22 @@ impl<'a> Uploader<'a> {
         // temp location for now
         let temp_path = Path::parse(Ulid::new().to_string())?;
         let mut s3_writer = BufWriter::new(s3.clone(), temp_path.clone());
+        debug!("uploading to temp path: {}", temp_path);
 
         // compress and upload nar
         let mut file_reader = nar.compress_and_hash().await?;
-        let mut buf = BytesMut::with_capacity(CHUNK_SIZE);
-        debug!("uploading to temp path: {}", temp_path);
-        while let n = file_reader.read_buf(&mut buf).await?
-            && n != 0
-        {
-            s3_writer.write_all_buf(&mut buf).await?;
+        loop {
+            let mut buf = BytesMut::with_capacity(CHUNK_SIZE);
+            let n = file_reader.read_buf(&mut buf).await?;
+            s3_writer.put(buf.freeze()).await?;
+            if n == 0 {
+                break;
+            }
         }
         drop(file_reader);
 
         let mut nar_info = nar.get_narinfo()?;
         nar_info.add_signature(self.signing_key);
-        trace!("narinfo: {:#}", nar_info);
 
         // now that we can calculate the file_hash move the nar to where it should be
         let real_path = nar_url(
@@ -55,6 +56,8 @@ impl<'a> Uploader<'a> {
                 .expect("file hash must be known at this point"),
         );
         debug!("moving {} to {}", temp_path, real_path);
+        // the temp object must be done uploading
+        s3_writer.shutdown().await?;
         // this is implemented as a copy-and-delete
         s3.rename(&temp_path, &real_path).await?;
         // set nar url in narinfo
@@ -63,6 +66,7 @@ impl<'a> Uploader<'a> {
         // upload narinfo
         let narinfo_path = self.path.narinfo_path();
         debug!("uploading narinfo: {}", narinfo_path);
+        trace!("narinfo: {:#}", nar_info);
         s3.put(&narinfo_path, nar_info.to_string().into()).await?;
 
         Ok(())