git-annex/Annex/Url.hs
2017-12-05 15:00:50 -04:00

40 lines
1.1 KiB
Haskell

{- Url downloading, with git-annex user agent and configured http
- headers and wget/curl options.
-
- Copyright 2013-2014 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Annex.Url (
module U,
withUrlOptions,
getUrlOptions,
getUserAgent,
) where
import Annex.Common
import qualified Annex
import Utility.Url as U
import qualified Build.SysConfig as SysConfig
defaultUserAgent :: U.UserAgent
defaultUserAgent = "git-annex/" ++ SysConfig.packageversion
getUserAgent :: Annex (Maybe U.UserAgent)
getUserAgent = Annex.getState $
Just . fromMaybe defaultUserAgent . Annex.useragent
getUrlOptions :: Annex U.UrlOptions
getUrlOptions = mkUrlOptions
<$> getUserAgent
<*> headers
<*> options
where
headers = annexHttpHeadersCommand <$> Annex.getGitConfig >>= \case
Just cmd -> lines <$> liftIO (readProcess "sh" ["-c", cmd])
Nothing -> annexHttpHeaders <$> Annex.getGitConfig
options = map Param . annexWebOptions <$> Annex.getGitConfig
withUrlOptions :: (U.UrlOptions -> IO a) -> Annex a
withUrlOptions a = liftIO . a =<< getUrlOptions