From 7c12f0ac9224246dac308e837bccb5b2157062ee Mon Sep 17 00:00:00 2001
From: Joey Hess <id@joeyh.name>
Date: Tue, 15 Dec 2015 17:47:59 -0700
Subject: Import git-repair_1.20151215.orig.tar.xz

[dgit import orig git-repair_1.20151215.orig.tar.xz]
---
 Utility/UserInfo.hs | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 Utility/UserInfo.hs

(limited to 'Utility/UserInfo.hs')

diff --git a/Utility/UserInfo.hs b/Utility/UserInfo.hs
new file mode 100644
index 0000000..7e94caf
--- /dev/null
+++ b/Utility/UserInfo.hs
@@ -0,0 +1,63 @@
+{- user info
+ -
+ - Copyright 2012 Joey Hess <id@joeyh.name>
+ -
+ - License: BSD-2-clause
+ -}
+
+{-# LANGUAGE CPP #-}
+{-# OPTIONS_GHC -fno-warn-tabs #-}
+
+module Utility.UserInfo (
+	myHomeDir,
+	myUserName,
+	myUserGecos,
+) where
+
+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. -}
+myHomeDir :: IO FilePath
+myHomeDir = myVal env homeDirectory
+  where
+#ifndef mingw32_HOST_OS
+	env = ["HOME"]
+#else
+	env = ["USERPROFILE", "HOME"] -- HOME is used in Cygwin
+#endif
+
+{- Current user's user name. -}
+myUserName :: IO String
+myUserName = myVal env userName
+  where
+#ifndef mingw32_HOST_OS
+	env = ["USER", "LOGNAME"]
+#else
+	env = ["USERNAME", "USER", "LOGNAME"]
+#endif
+
+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 = Just <$> myVal [] userGecos
+#endif
+
+myVal :: [String] -> (UserEntry -> String) -> IO String
+myVal envvars extract = go envvars
+  where
+#ifndef mingw32_HOST_OS
+	go [] = extract <$> (getUserEntryForID =<< getEffectiveUserID)
+#else
+	go [] = error $ "environment not set: " ++ show envvars
+#endif
+	go (v:vs) = maybe (go vs) return =<< getEnv v
-- 
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