Github user davisp commented on a diff in the pull request:
https://github.com/apache/couchdb-couch/pull/22#discussion_r21720537
--- Diff: src/couch_db_updater.erl ---
@@ -985,27 +985,18 @@ sync_header(Db, NewHeader) ->
waiting_delayed_commit=nil
}.
-copy_doc_attachments(#db{fd = SrcFd} = SrcDb, SrcSp, DestFd) ->
- {ok, {BodyData, BinInfos0}} = couch_db:read_doc(SrcDb, SrcSp),
- BinInfos = case BinInfos0 of
- _ when is_binary(BinInfos0) ->
- couch_compress:decompress(BinInfos0);
- _ when is_list(BinInfos0) ->
- % pre 1.2 file format
- BinInfos0
- end,
+copy_doc_attachments(#db{fd = SrcFd} = SrcDb, SrcSp, DestFd, Processed) ->
+ {BodyData, BinInfos} = read_doc_with_atts(SrcDb, SrcSp),
% copy the bin values
- NewBinInfos = lists:map(
- fun({Name, Type, BinSp, AttLen, RevPos, ExpectedMd5}) ->
+ {NewBinInfos, NewProcessed} = lists:mapfoldr(
--- End diff --
Why mapfoldr instead of mapfoldl?
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