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authorEgor Tensin <Egor.Tensin@gmail.com>2016-07-11 19:11:23 +0300
committerEgor Tensin <Egor.Tensin@gmail.com>2016-07-11 19:11:23 +0300
commit7b3fd9218596a2d7a14a92625a4d62c9a7b7b0f6 (patch)
tree8195393c18d0cdd3d9ebcdadb014d75285bfaf7e /src/EnvUtils.hs
parentbecome a proper stack project (diff)
downloadwindows-env-7b3fd9218596a2d7a14a92625a4d62c9a7b7b0f6.tar.gz
windows-env-7b3fd9218596a2d7a14a92625a4d62c9a7b7b0f6.zip
rename modules + fix compiler warnings
Diffstat (limited to 'src/EnvUtils.hs')
-rw-r--r--src/EnvUtils.hs81
1 files changed, 0 insertions, 81 deletions
diff --git a/src/EnvUtils.hs b/src/EnvUtils.hs
deleted file mode 100644
index 7e9bc96..0000000
--- a/src/EnvUtils.hs
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@@ -1,81 +0,0 @@
-{-
- - Copyright 2015 Egor Tensin <Egor.Tensin@gmail.com>
- - This file is licensed under the terms of the MIT License.
- - See LICENSE.txt for details.
--}
-
-module EnvUtils ( saveToRegistry
- , saveToRegistryWithPrompt
- , queryFromRegistry
- , wipeFromRegistry
- , wipeFromRegistryWithPrompt
- , getEnv
- , splitPaths
- , joinPaths
- , RegistryBasedEnvironment ( CurrentUserEnvironment, AllUsersEnvironment ) ) where
-
-import Control.Monad ( liftM, when )
-import Data.List ( intercalate )
-import Data.List.Split ( splitOn )
-import Data.Maybe ( fromMaybe )
-import qualified System.Environment ( lookupEnv )
-import System.IO.Error ( catchIOError, isDoesNotExistError )
-
-import qualified RegUtils
-import qualified Utils ( promptToContinue )
-
-data RegistryBasedEnvironment = CurrentUserEnvironment
- | AllUsersEnvironment
- deriving (Eq, Show)
-
-registrySubKeyPath :: RegistryBasedEnvironment -> String
-registrySubKeyPath CurrentUserEnvironment = "Environment"
-registrySubKeyPath AllUsersEnvironment = "SYSTEM\\CurrentControlSet\\Control\\Session Manager\\Environment"
-
-registryKey CurrentUserEnvironment = RegUtils.hkcu
-registryKey AllUsersEnvironment = RegUtils.hklm
-
-registryKeyPath :: RegistryBasedEnvironment -> String
-registryKeyPath CurrentUserEnvironment = "HKCU\\" ++ registrySubKeyPath CurrentUserEnvironment
-registryKeyPath AllUsersEnvironment = "HKLM\\" ++ registrySubKeyPath AllUsersEnvironment
-
-saveToRegistry :: RegistryBasedEnvironment -> String -> String -> IO ()
-saveToRegistry env = RegUtils.setString (registryKey env) (registrySubKeyPath env)
-
-saveToRegistryWithPrompt :: RegistryBasedEnvironment -> String -> String -> IO ()
-saveToRegistryWithPrompt env name value = do
- putStrLn $ "Saving variable '" ++ name ++ "' to '" ++ registryKeyPath env ++ "'..."
- oldValue <- queryFromRegistry env name
- putStrLn $ "\tOld value: " ++ oldValue
- putStrLn $ "\tNew value: " ++ value
- agreed <- Utils.promptToContinue
- when agreed $ saveToRegistry env name value
-
-queryFromRegistry :: RegistryBasedEnvironment -> String -> IO String
-queryFromRegistry env name = catchIOError (RegUtils.getString (registryKey env) (registrySubKeyPath env) name) emptyIfDoesNotExist
- where
- emptyIfDoesNotExist :: IOError -> IO String
- emptyIfDoesNotExist e = if isDoesNotExistError e then return "" else ioError e
-
-wipeFromRegistry :: RegistryBasedEnvironment -> String -> IO ()
-wipeFromRegistry env name = catchIOError (RegUtils.delValue (registryKey env) (registrySubKeyPath env) name) ignoreIfDoesNotExist
- where
- ignoreIfDoesNotExist :: IOError -> IO ()
- ignoreIfDoesNotExist e = if isDoesNotExistError e then return () else ioError e
-
-wipeFromRegistryWithPrompt :: RegistryBasedEnvironment -> String -> IO ()
-wipeFromRegistryWithPrompt env name = do
- putStrLn $ "Deleting variable '" ++ name ++ "' from '" ++ registryKeyPath env ++ "'..."
- agreed <- Utils.promptToContinue
- when agreed $ wipeFromRegistry env name
-
-getEnv :: String -> IO String
-getEnv = liftM (fromMaybe "") . System.Environment.lookupEnv
-
-pathSep = ";"
-
-splitPaths :: String -> [String]
-splitPaths = filter (not . null) . splitOn pathSep
-
-joinPaths :: [String] -> String
-joinPaths = intercalate pathSep . filter (not . null)