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{- Checks system configuration and generates Build/SysConfig. -}
{-# OPTIONS_GHC -fno-warn-tabs #-}
module Build.Configure where
import Build.TestConfig
import Utility.Env.Basic
import qualified Git.Version
import Control.Monad
tests :: [TestCase]
tests =
[ TestCase "git" $ testCmd "git" "git --version >/dev/null"
, TestCase "git version" getGitVersion
]
getGitVersion :: Test
getGitVersion = go =<< getEnv "FORCE_GIT_VERSION"
where
go (Just s) = return $ Config "gitversion" $ StringConfig s
go Nothing = do
v <- Git.Version.installed
let oldestallowed = Git.Version.normalize "2.1"
when (v < oldestallowed) $
error $ "installed git version " ++ show v ++ " is too old! (Need " ++ show oldestallowed ++ " or newer)"
return $ Config "gitversion" $ StringConfig $ show v
run :: [TestCase] -> IO ()
run ts = do
config <- runTests ts
writeSysConfig config
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