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better HTTP connection reuse

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Enable HTTP connection reuse across multiple files, when git-annex
uses http-conduit. Before, a new Manager was created each time
Utility.Url used it. Now, a single Manager gets created the first time,
so connections are reused.

Doesn't help when external programs are used for url download,
but does speed up addurl --fast, fsck --from web, etc.

Testing fsck --fast --from web with 3 files, over high-latency
satellite internet, it sped up from 19.37s to 14.96s.

This commit was supported by the NSF-funded DataLad project.
This commit is contained in:
Joey Hess 2018-04-04 15:15:12 -04:00
parent 2ec07bc29f
commit 9b98d3f630
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GPG key ID: DB12DB0FF05F8F38
12 changed files with 61 additions and 53 deletions
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3
Assistant/WebApp/Configurators/IA.hs
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@ -189,7 +189,8 @@ escapeHeader :: String -> String
escapeHeader = escapeURIString (\c -> isUnescapedInURI c && c /= ' ')
getRepoInfo :: RemoteConfig -> Widget
getRepoInfo c = Url.withUrlOptions $ \uo ->
getRepoInfo c = do
uo <- liftAnnex Url.getUrlOptions
exists <- liftIO $ catchDefaultIO False $ Url.exists url uo
[whamlet|
<a href="#{url}">