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authorJoey Hess <joeyh@debian.org>2013-11-22 11:16:03 -0400
committerJoey Hess <joeyh@debian.org>2013-11-22 11:16:03 -0400
commit7e592e1d6ed5e0b25b37215da7558c6324688d6f (patch)
tree75a86ff02e9311bcff817f2dcfe9b0a6ca1b5708 /Utility/UserInfo.hs
downloadgit-repair-7e592e1d6ed5e0b25b37215da7558c6324688d6f.tar.gz
git-repair (1.20131122) unstable; urgency=low
* Added test mode, which can be used to randomly corrupt test repositories, in reproducible ways, which allows easy corruption-driven-development. * Improve repair code in the case where the index file is corrupt, and this hides other problems. * Write a dummy .git/HEAD if the file is missing or corrupt, as git otherwise will not treat the repository as a git repo. * Improve fsck code to find badly corrupted objects that crash git fsck before it can complain about them. * Fixed crashes on bad file encodings. * Can now run 10000 tests (git-repair --test -n 10000 --force) with 0 failures. # imported from the archive
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+{- user info
+ -
+ - Copyright 2012 Joey Hess <joey@kitenet.net>
+ -
+ - Licensed under the GNU GPL version 3 or higher.
+ -}
+
+{-# LANGUAGE CPP #-}
+
+module Utility.UserInfo (
+ myHomeDir,
+ myUserName,
+ myUserGecos,
+) where
+
+import Control.Applicative
+import System.PosixCompat
+
+import Utility.Env
+
+{- 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 String
+#ifdef __ANDROID__
+myUserGecos = return "" -- userGecos crashes on Android
+#else
+myUserGecos = myVal [] userGecos
+#endif
+
+myVal :: [String] -> (UserEntry -> String) -> IO String
+myVal envvars extract = maybe (extract <$> getpwent) return =<< check envvars
+ where
+ check [] = return Nothing
+ check (v:vs) = maybe (check vs) (return . Just) =<< getEnv v
+ getpwent = getUserEntryForID =<< getEffectiveUserID