convert WebDAV to new special remote interface, adding new-style chunking support

Reusing http connection when operating on chunks is not done yet,
I had to submit some patches to DAV to support that. However, this is no
slower than old-style chunking was.

Note that it's a fileRetriever and a fileStorer, despite DAV using
bytestrings that would allow streaming. As a result, upload/download of
encrypted files is made a bit more expensive, since it spools them to temp
files. This was needed to get the progress meters to work.

There are probably ways to avoid that.. But it turns out that the current
DAV interface buffers the whole file content in memory, and I have
sent in a patch to DAV to improve its interfaces. Using the new interfaces,
it's certainly going to need to be a fileStorer, in order to read the file
size from the file (getting the size of a bytestring would destroy
laziness). It should be possible to use the new interface to make it be a
byteRetriever, so I'll change that when I get to it.

This commit was sponsored by Andreas Olsson.

1 files changed, 2 insertions, 2 deletions

diff --git a/Remote/Helper/Special.hs b/Remote/Helper/Special.hs
index f8428aff7..fc0e11d2f 100644
--- a/Remote/Helper/Special.hs
+++ b/Remote/Helper/Special.hs
@@ -39,7 +39,7 @@ import Crypto
 import Config.Cost
 import Utility.Metered
 import Remote.Helper.Chunked as X
-import Remote.Helper.Encryptable as X hiding (encryptableRemote)
+import Remote.Helper.Encryptable as X
 import Remote.Helper.Messages
 import Annex.Content
 import Annex.Exception
@@ -119,7 +119,7 @@ byteRetriever :: (Key -> (L.ByteString -> Annex Bool) -> Annex Bool) -> Retrieve
 byteRetriever a k _m callback = a k (callback . ByteContent)
 
 {- The base Remote that is provided to specialRemote needs to have
- - storeKey, retreiveKeyFile, removeKey, and checkPresent methods,
+ - storeKey, retrieveKeyFile, removeKey, and checkPresent methods,
  - but they are never actually used (since specialRemote replaces them).
  - Here are some dummy ones.
  -}