This commit is contained in:
Joey Hess 2016-02-25 13:46:31 -04:00
parent 804aeca5d2
commit be2e9427ad
Failed to extract signature
3 changed files with 41 additions and 28 deletions

38
Git/Env.hs Normal file
View file

@ -0,0 +1,38 @@
{- Adjusting the environment while running git commands.
-
- Copyright 2014-2016 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
{-# LANGUAGE CPP #-}
module Git.Env where
import Git
import Utility.Env
{- Adjusts the gitEnv of a Repo. Copies the system environment if the repo
- does not have any gitEnv yet. -}
adjustGitEnv :: Repo -> ([(String, String)] -> [(String, String)]) -> IO Repo
adjustGitEnv g adj = do
e <- maybe copyenv return (gitEnv g)
let e' = adj e
return $ g { gitEnv = Just e' }
where
copyenv = do
#ifdef __ANDROID__
{- This should not be necessary on Android, but there is some
- weird getEnvironment breakage. See
- https://github.com/neurocyte/ghc-android/issues/7
- Use getEnv to get some key environment variables that
- git expects to have. -}
let keyenv = words "USER PATH GIT_EXEC_PATH HOSTNAME HOME"
let getEnvPair k = maybe Nothing (\v -> Just (k, v)) <$> getEnv k
catMaybes <$> forM keyenv getEnvPair
#else
getEnvironment
#endif
addGitEnv :: Repo -> String -> String -> IO Repo
addGitEnv g var val = adjustGitEnv g (addEntry var val)