From fb1cac7dee2f013df95b085be29cb0028e0b1724 Mon Sep 17 00:00:00 2001
From: Pirmin Kalberer <pka@sourcepole.ch>
Date: Fri, 1 Sep 2023 08:47:50 +0200
Subject: [PATCH] Better SeekFrom::End error message

---
 src/buffered_range_client.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/buffered_range_client.rs b/src/buffered_range_client.rs
index db25648..1312d20 100644
--- a/src/buffered_range_client.rs
+++ b/src/buffered_range_client.rs
@@ -230,9 +230,11 @@ pub(crate) mod sync {
                     self.buffer.offset = p as usize;
                     Ok(p)
                 }
+                // TODO: we should support SeekFrom::End (e.g. for Parquet)
+                // With a HEAD request we would often get the file length
                 SeekFrom::End(_) => Err(std::io::Error::new(
                     std::io::ErrorKind::Other,
-                    "Request size unkonwn",
+                    "SeekFrom::End not supported for HTTP streams",
                 )),
                 SeekFrom::Current(p) => {
                     self.buffer.offset = self.buffer.offset.saturating_add_signed(p as isize);