propellor (0.3.0) unstable; urgency=medium

  * ipv6to4: Ensure interface is brought up automatically on boot.
  * Enabling unattended upgrades now ensures that cron is installed and
    running to perform them.
  * Properties can be scheduled to only be checked after a given time period.
  * Fix bootstrapping of dependencies.
  * Fix compilation on Debian stable.
  * Include security updates in sources.list for stable and testing.
  * Use ssh connection caching, especially when bootstrapping.
  * Properties now run in a Propellor monad, which provides access to
    attributes of the host.

# imported from the archive

1 files changed, 55 insertions, 0 deletions

diff --git a/Utility/UserInfo.hs b/Utility/UserInfo.hs
new file mode 100644
index 00000000..9c3bfd42
--- /dev/null
+++ b/Utility/UserInfo.hs
@@ -0,0 +1,55 @@
+{- 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