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Use remote-repo-cache (#51)

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Michael Snoyman 2013-04-02 11:42:09 +03:00
parent 705c03d8c6
commit 863be9b68a
1 changed files with 11 additions and 1 deletions
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12
Stackage/Util.hs
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@ -4,8 +4,10 @@ module Stackage.Util where
import qualified Codec.Archive.Tar as Tar
import qualified Codec.Archive.Tar.Entry as TarEntry
import Control.Monad (guard, when)
import Data.Char (isSpace)
import Data.List (stripPrefix)
import qualified Data.Map as Map
import Data.Maybe (mapMaybe)
import qualified Data.Set as Set
import Data.Version (showVersion)
import Distribution.License (License (..))
@ -56,7 +58,15 @@ getCabalRoot = getAppUserDataDirectory "cabal"
getTarballName :: IO FilePath
getTarballName = do
c <- getCabalRoot
return $ c </> "packages" </> "hackage.haskell.org" </> "00-index.tar"
configLines <- fmap lines $ readFile (c </> "config")
case mapMaybe getRemoteCache configLines of
[x] -> return $ x </> "hackage.haskell.org" </> "00-index.tar"
[] -> error $ "No remote-repo-cache found in Cabal config file"
_ -> error $ "Multiple remote-repo-cache entries found in Cabal config file"
where
getRemoteCache s = do
("remote-repo-cache", ':':v) <- Just $ break (== ':') s
Just $ reverse $ dropWhile isSpace $ reverse $ dropWhile isSpace v
stableRepoName, extraRepoName :: String
stableRepoName = "stackage"