diff options
Diffstat (limited to 'Utility/UserInfo.hs')
| -rw-r--r-- | Utility/UserInfo.hs | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/Utility/UserInfo.hs b/Utility/UserInfo.hs index 617c3e9..7e94caf 100644 --- a/Utility/UserInfo.hs +++ b/Utility/UserInfo.hs @@ -1,11 +1,12 @@ {- user info - - - Copyright 2012 Joey Hess <joey@kitenet.net> + - Copyright 2012 Joey Hess <id@joeyh.name> - - License: BSD-2-clause -} {-# LANGUAGE CPP #-} +{-# OPTIONS_GHC -fno-warn-tabs #-} module Utility.UserInfo ( myHomeDir, @@ -13,11 +14,14 @@ module Utility.UserInfo ( myUserGecos, ) where -import Control.Applicative -import System.PosixCompat - import Utility.Env +import System.PosixCompat +#ifndef mingw32_HOST_OS +import Control.Applicative +#endif +import Prelude + {- Current user's home directory. - - getpwent will fail on LDAP or NIS, so use HOME if set. -} @@ -40,16 +44,20 @@ myUserName = myVal env userName env = ["USERNAME", "USER", "LOGNAME"] #endif -myUserGecos :: IO String -#ifdef __ANDROID__ -myUserGecos = return "" -- userGecos crashes on Android +myUserGecos :: IO (Maybe String) +-- userGecos crashes on Android and is not available on Windows. +#if defined(__ANDROID__) || defined(mingw32_HOST_OS) +myUserGecos = return Nothing #else -myUserGecos = myVal [] userGecos +myUserGecos = Just <$> myVal [] userGecos #endif myVal :: [String] -> (UserEntry -> String) -> IO String -myVal envvars extract = maybe (extract <$> getpwent) return =<< check envvars +myVal envvars extract = go envvars where - check [] = return Nothing - check (v:vs) = maybe (check vs) (return . Just) =<< getEnv v - getpwent = getUserEntryForID =<< getEffectiveUserID +#ifndef mingw32_HOST_OS + go [] = extract <$> (getUserEntryForID =<< getEffectiveUserID) +#else + go [] = error $ "environment not set: " ++ show envvars +#endif + go (v:vs) = maybe (go vs) return =<< getEnv v |