use multi range requests (#800)

- Improvement: `zen builds download` now uses multi-range requests for blocks to reduce download size
- Improvement: `zen oplog-import` now uses partial block with multi-range requests for blocks to reduce download size
- Improvement: Improved feedback in log/console during `zen oplog-import`
- Improvement: `--allow-partial-block-requests` now defaults to `true` for `zen builds download` and `zen oplog-import` (was `mixed`)
- Improvement: Improved range merging analysis when downloading partial blocks

1 files changed, 3 insertions, 1 deletions

diff --git a/src/zenhttp/include/zenhttp/httpclient.h b/src/zenhttp/include/zenhttp/httpclient.h
index f00bbec63..53be36b9a 100644
--- a/src/zenhttp/include/zenhttp/httpclient.h
+++ b/src/zenhttp/include/zenhttp/httpclient.h
@@ -190,10 +190,12 @@ public:
 			HttpContentType ContentType;
 		};
 
-		// Ranges will map out all recevied ranges, both single and multi-range responses
+		// Ranges will map out all received ranges, both single and multi-range responses
 		// If no range was requested Ranges will be empty
 		std::vector<MultipartBoundary> Ranges;
 
+		// Map the absolute OffsetAndLengthPairs into ResponsePayload from the ranges received (Ranges).
+		// If the response was not a partial response, an empty vector will be returned
 		std::vector<std::pair<uint64_t, uint64_t>> GetRanges(std::span<const std::pair<uint64_t, uint64_t>> OffsetAndLengthPairs) const;
 
 		// This contains any errors from the HTTP stack. It won't contain information on