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-rw-r--r--apps/AddPath.hs85
-rw-r--r--apps/FixNtSymbolPath.hs50
-rw-r--r--apps/ListPath.hs66
-rw-r--r--apps/RemovePath.hs92
-rw-r--r--apps/SetEnv.hs65
-rw-r--r--apps/UnsetEnv.hs63
-rw-r--r--src/Environment.hs61
-rw-r--r--src/Registry.hs133
-rw-r--r--src/Utils.hs24
9 files changed, 327 insertions, 312 deletions
diff --git a/apps/AddPath.hs b/apps/AddPath.hs
index 558c23c..e3f8ec3 100644
--- a/apps/AddPath.hs
+++ b/apps/AddPath.hs
@@ -4,73 +4,76 @@
- See LICENSE.txt for details.
-}
-module Main ( main ) where
+module Main (main) where
-import Control.Monad ( mapM_, when )
+import Control.Monad (mapM_, when)
import System.Console.GetOpt
-import System.Environment ( getArgs, getProgName )
-import System.Exit ( exitFailure, exitSuccess )
-import System.IO ( hPutStr, stderr )
+import System.Environment (getArgs, getProgName)
+import System.Exit (exitFailure, exitSuccess)
+import System.IO (hPutStr, stderr)
import qualified Environment
main :: IO ()
main = do
- rawArgs <- getArgs
- case getOpt Permute optionDescription rawArgs of
- (actions, args, []) -> do
- options <- foldl (>>=) (return defaultOptions) actions
- addPath args options
- (_, _, errorMessages) -> exitWithUsageErrors errorMessages
+ rawArgs <- getArgs
+ case getOpt Permute optionDescription rawArgs of
+ (actions, args, []) -> do
+ options <- foldl (>>=) (return defaultOptions) actions
+ addPath args options
+ (_, _, errorMessages) -> exitWithUsageErrors errorMessages
addPath :: [String] -> Options -> IO ()
addPath paths options = do
- missingPaths <- dropIncludedPaths paths
- when (not $ null missingPaths) $ do
- oldPath <- Environment.queryFromRegistry (env options) (name options)
- Environment.saveToRegistryWithPrompt (env options) (name options) $ Environment.joinPaths $ missingPaths ++ [oldPath]
- where
- dropIncludedPaths paths = do
- currentPath <- Environment.getEnv $ name options
- return $ filter (flip notElem $ Environment.splitPaths currentPath) paths
+ missingPaths <- dropIncludedPaths paths
+ when (not $ null missingPaths) $ do
+ oldPath <- Environment.queryFromRegistry (env options) (name options)
+ Environment.saveToRegistryWithPrompt (env options) (name options) $ Environment.joinPaths $ missingPaths ++ [oldPath]
+ where
+ dropIncludedPaths paths = do
+ currentPath <- Environment.getEnv $ name options
+ return $ filter (flip notElem $ Environment.splitPaths currentPath) paths
-data Options = Options { name :: String
- , env :: Environment.RegistryBasedEnvironment }
- deriving (Eq, Show)
+data Options = Options
+ { name :: String
+ , env :: Environment.RegistryBasedEnvironment
+ } deriving (Eq, Show)
defaultOptions :: Options
-defaultOptions = Options { name = "PATH"
- , env = Environment.CurrentUserEnvironment }
+defaultOptions = Options
+ { name = "PATH"
+ , env = Environment.CurrentUserEnvironment
+ }
buildHelpMessage :: IO String
buildHelpMessage = do
- header <- buildHeader
- return $ usageInfo header optionDescription
- where
- buildHeader :: IO String
- buildHeader = do
+ header <- buildHeader
+ return $ usageInfo header optionDescription
+ where
+ buildHeader :: IO String
+ buildHeader = do
progName <- getProgName
return $ "Usage: " ++ progName ++ " [OPTIONS...] [PATH...]\nOptions:"
exitWithHelpMessage :: a -> IO b
exitWithHelpMessage _ = do
- helpMessage <- buildHelpMessage
- putStr helpMessage
- exitSuccess
+ helpMessage <- buildHelpMessage
+ putStr helpMessage
+ exitSuccess
exitWithUsageErrors :: [String] -> IO a
exitWithUsageErrors errorMessages = do
- hPutStr stderr $ concatMap ("Usage error: " ++) errorMessages
- helpMessage <- buildHelpMessage
- hPutStr stderr helpMessage
- exitFailure
+ hPutStr stderr $ concatMap ("Usage error: " ++) errorMessages
+ helpMessage <- buildHelpMessage
+ hPutStr stderr helpMessage
+ exitFailure
invalidNumberOfArguments :: IO a
invalidNumberOfArguments = exitWithUsageErrors ["invalid number of arguments\n"]
optionDescription :: [OptDescr (Options -> IO Options)]
-optionDescription = [
- Option "n" ["name"] (ReqArg (\s opts -> return opts { name = s }) "NAME") "set the variable name ('PATH' by default)",
- Option "g" ["global"] (NoArg $ \opts -> return opts { env = Environment.AllUsersEnvironment }) "add the path for all users",
- Option "h" ["help"] (NoArg exitWithHelpMessage) "show this message and exit"
- ]
+optionDescription =
+ [ Option "n" ["name"] (ReqArg (\s opts -> return opts { name = s }) "NAME") "set the variable name ('PATH' by default)"
+ , Option "g" ["global"] (NoArg $ \opts -> return opts { env = Environment.AllUsersEnvironment }) "add the path for all users"
+ , Option "h" ["help"] (NoArg exitWithHelpMessage) "show this message and exit"
+ ]
diff --git a/apps/FixNtSymbolPath.hs b/apps/FixNtSymbolPath.hs
index 9a02cf9..c75291e 100644
--- a/apps/FixNtSymbolPath.hs
+++ b/apps/FixNtSymbolPath.hs
@@ -4,46 +4,44 @@
- See LICENSE.txt for details.
-}
-module Main ( main ) where
+module Main (main) where
-import Control.Monad ( unless )
-import System.Directory ( createDirectoryIfMissing, getCurrentDirectory )
-import System.FilePath ( combine )
+import Control.Monad (unless)
+import System.Directory (createDirectoryIfMissing, getCurrentDirectory)
+import System.FilePath (combine)
import qualified Environment
getRemoteSymbolsDirectoryPath :: IO String
getRemoteSymbolsDirectoryPath = do
- localPath <- getLocalPath
- createDirectoryIfMissing True localPath
- return $ "SRV*" ++ localPath ++ "*" ++ remotePath
- where
- getLocalPath :: IO String
- getLocalPath = do
+ localPath <- getLocalPath
+ createDirectoryIfMissing True localPath
+ return $ "SRV*" ++ localPath ++ "*" ++ remotePath
+ where
+ getLocalPath = do
cwd <- getCurrentDirectory
return $ combine cwd "symbols"
- remotePath :: String
- remotePath = "http://msdl.microsoft.com/download/symbols"
+ remotePath = "http://msdl.microsoft.com/download/symbols"
getPdbsDirectoryPath :: IO String
getPdbsDirectoryPath = do
- cwd <- getCurrentDirectory
- let path = combine cwd "pdbs"
- createDirectoryIfMissing True path
- return path
+ cwd <- getCurrentDirectory
+ let path = combine cwd "pdbs"
+ createDirectoryIfMissing True path
+ return path
fixNtSymbolPath :: IO ()
fixNtSymbolPath = do
- let env = Environment.CurrentUserEnvironment
- val <- Environment.queryFromRegistry env ntSymbolPath
- let presentPaths = Environment.splitPaths val
- remoteSymbolsPath <- getRemoteSymbolsDirectoryPath
- pdbsPath <- getPdbsDirectoryPath
- let requiredPaths = [pdbsPath, remoteSymbolsPath]
- let missingPaths = filter (`notElem` presentPaths) requiredPaths
- unless (null missingPaths) $ do
- let newval = Environment.joinPaths $ presentPaths ++ missingPaths
- Environment.saveToRegistry env ntSymbolPath newval
+ let env = Environment.CurrentUserEnvironment
+ val <- Environment.queryFromRegistry env ntSymbolPath
+ let presentPaths = Environment.splitPaths val
+ remoteSymbolsPath <- getRemoteSymbolsDirectoryPath
+ pdbsPath <- getPdbsDirectoryPath
+ let requiredPaths = [pdbsPath, remoteSymbolsPath]
+ let missingPaths = filter (`notElem` presentPaths) requiredPaths
+ unless (null missingPaths) $ do
+ let newval = Environment.joinPaths $ presentPaths ++ missingPaths
+ Environment.saveToRegistry env ntSymbolPath newval
where
ntSymbolPath = "_NT_SYMBOL_PATH"
diff --git a/apps/ListPath.hs b/apps/ListPath.hs
index 75f1b27..b964998 100644
--- a/apps/ListPath.hs
+++ b/apps/ListPath.hs
@@ -4,33 +4,33 @@
- See LICENSE.txt for details.
-}
-module Main ( main ) where
+module Main (main) where
import System.Console.GetOpt
-import System.Directory ( doesDirectoryExist )
-import System.Environment ( getArgs, getProgName )
-import System.Exit ( exitFailure, exitSuccess )
-import System.IO ( hPutStr, stderr )
+import System.Directory (doesDirectoryExist)
+import System.Environment (getArgs, getProgName)
+import System.Exit (exitFailure, exitSuccess)
+import System.IO (hPutStr, stderr)
import qualified Environment
main :: IO ()
main = do
- rawArgs <- getArgs
- case getOpt Permute optionDescription rawArgs of
- (actions, args, []) -> do
- options <- foldl (>>=) (return defaultOptions) actions
- case args of
- [] -> listPath options
- _ -> invalidNumberOfArguments
- (_, _, errorMessages) -> exitWithUsageErrors errorMessages
+ rawArgs <- getArgs
+ case getOpt Permute optionDescription rawArgs of
+ (actions, args, []) -> do
+ options <- foldl (>>=) (return defaultOptions) actions
+ case args of
+ [] -> listPath options
+ _ -> invalidNumberOfArguments
+ (_, _, errorMessages) -> exitWithUsageErrors errorMessages
listPath :: Options -> IO ()
listPath options = do
- val <- Environment.getEnv $ name options
- mapM_ printPath $ Environment.splitPaths val
- where
- printPath p = do
+ val <- Environment.getEnv $ name options
+ mapM_ printPath $ Environment.splitPaths val
+ where
+ printPath p = do
exists <- doesDirectoryExist p
putStrLn $ (if exists then "+" else "-") ++ " " ++ p
@@ -41,32 +41,32 @@ defaultOptions = Options { name = "PATH" }
buildHelpMessage :: IO String
buildHelpMessage = do
- header <- buildHeader
- return $ usageInfo header optionDescription
- where
- buildHeader :: IO String
- buildHeader = do
+ header <- buildHeader
+ return $ usageInfo header optionDescription
+ where
+ buildHeader :: IO String
+ buildHeader = do
progName <- getProgName
return $ "Usage: " ++ progName ++ " [OPTIONS...]\nOptions:"
exitWithHelpMessage :: a -> IO b
exitWithHelpMessage _ = do
- helpMessage <- buildHelpMessage
- putStr helpMessage
- exitSuccess
+ helpMessage <- buildHelpMessage
+ putStr helpMessage
+ exitSuccess
exitWithUsageErrors :: [String] -> IO a
exitWithUsageErrors errorMessages = do
- hPutStr stderr $ concatMap ("Usage error: " ++) errorMessages
- helpMessage <- buildHelpMessage
- hPutStr stderr helpMessage
- exitFailure
+ hPutStr stderr $ concatMap ("Usage error: " ++) errorMessages
+ helpMessage <- buildHelpMessage
+ hPutStr stderr helpMessage
+ exitFailure
invalidNumberOfArguments :: IO a
invalidNumberOfArguments = exitWithUsageErrors ["invalid number of arguments\n"]
optionDescription :: [OptDescr (Options -> IO Options)]
-optionDescription = [
- Option "n" ["name"] (ReqArg (\s opts -> return opts { name = s }) "NAME") "set the variable name ('PATH' by default)",
- Option "h" ["help"] (NoArg exitWithHelpMessage) "show this message and exit"
- ]
+optionDescription =
+ [ Option "n" ["name"] (ReqArg (\s opts -> return opts { name = s }) "NAME") "set the variable name ('PATH' by default)"
+ , Option "h" ["help"] (NoArg exitWithHelpMessage) "show this message and exit"
+ ]
diff --git a/apps/RemovePath.hs b/apps/RemovePath.hs
index 3071708..2f73e21 100644
--- a/apps/RemovePath.hs
+++ b/apps/RemovePath.hs
@@ -4,77 +4,79 @@
- See LICENSE.txt for details.
-}
-module Main ( main ) where
+module Main (main) where
-import Control.Monad ( when )
+import Control.Monad (when)
import System.Console.GetOpt
-import System.Environment ( getArgs, getProgName )
-import System.Exit ( exitFailure, exitSuccess )
-import System.IO ( hPutStr, stderr )
+import System.Environment (getArgs, getProgName)
+import System.Exit (exitFailure, exitSuccess)
+import System.IO (hPutStr, stderr)
import qualified Environment
main :: IO ()
main = do
- rawArgs <- getArgs
- case getOpt Permute optionDescription rawArgs of
- (actions, args, []) -> do
- options <- foldl (>>=) (return defaultOptions) actions
- removePath args options
- (_, _, errorMessages) -> exitWithUsageErrors errorMessages
+ rawArgs <- getArgs
+ case getOpt Permute optionDescription rawArgs of
+ (actions, args, []) -> do
+ options <- foldl (>>=) (return defaultOptions) actions
+ removePath args options
+ (_, _, errorMessages) -> exitWithUsageErrors errorMessages
removePath :: [String] -> Options -> IO ()
removePath paths options = do
- let varName = name options
- userVal <- Environment.queryFromRegistry Environment.CurrentUserEnvironment varName
- let userValParts = Environment.splitPaths userVal
- let newUserValParts = filter (`notElem` paths) userValParts
- when (length userValParts /= length newUserValParts) $ do
- Environment.saveToRegistryWithPrompt Environment.CurrentUserEnvironment varName $ Environment.joinPaths newUserValParts
- when (global options) $ do
- globalVal <- Environment.queryFromRegistry Environment.AllUsersEnvironment varName
- let globalValParts = Environment.splitPaths globalVal
- let newGlobalValParts = filter (`notElem` paths) globalValParts
- when (length globalValParts /= length newGlobalValParts) $ do
- Environment.saveToRegistryWithPrompt Environment.AllUsersEnvironment varName $ Environment.joinPaths newGlobalValParts
+ let varName = name options
+ userVal <- Environment.queryFromRegistry Environment.CurrentUserEnvironment varName
+ let userValParts = Environment.splitPaths userVal
+ let newUserValParts = filter (`notElem` paths) userValParts
+ when (length userValParts /= length newUserValParts) $ do
+ Environment.saveToRegistryWithPrompt Environment.CurrentUserEnvironment varName $ Environment.joinPaths newUserValParts
+ when (global options) $ do
+ globalVal <- Environment.queryFromRegistry Environment.AllUsersEnvironment varName
+ let globalValParts = Environment.splitPaths globalVal
+ let newGlobalValParts = filter (`notElem` paths) globalValParts
+ when (length globalValParts /= length newGlobalValParts) $ do
+ Environment.saveToRegistryWithPrompt Environment.AllUsersEnvironment varName $ Environment.joinPaths newGlobalValParts
-data Options = Options { name :: String
- , global :: Bool }
- deriving (Eq, Show)
+data Options = Options
+ { name :: String
+ , global :: Bool
+ } deriving (Eq, Show)
defaultOptions :: Options
-defaultOptions = Options { name = "PATH"
- , global = False }
+defaultOptions = Options
+ { name = "PATH"
+ , global = False
+ }
buildHelpMessage :: IO String
buildHelpMessage = do
- header <- buildHeader
- return $ usageInfo header optionDescription
- where
- buildHeader :: IO String
- buildHeader = do
+ header <- buildHeader
+ return $ usageInfo header optionDescription
+ where
+ buildHeader = do
progName <- getProgName
return $ "Usage: " ++ progName ++ " [OPTIONS...] [PATH...]\nOptions:"
exitWithHelpMessage :: a -> IO b
exitWithHelpMessage _ = do
- helpMessage <- buildHelpMessage
- putStr helpMessage
- exitSuccess
+ helpMessage <- buildHelpMessage
+ putStr helpMessage
+ exitSuccess
exitWithUsageErrors :: [String] -> IO a
exitWithUsageErrors errorMessages = do
- hPutStr stderr $ concatMap ("Usage error: " ++) errorMessages
- helpMessage <- buildHelpMessage
- hPutStr stderr helpMessage
- exitFailure
+ hPutStr stderr $ concatMap ("Usage error: " ++) errorMessages
+ helpMessage <- buildHelpMessage
+ hPutStr stderr helpMessage
+ exitFailure
invalidNumberOfArguments :: IO a
invalidNumberOfArguments = exitWithUsageErrors ["invalid number of arguments\n"]
optionDescription :: [OptDescr (Options -> IO Options)]
-optionDescription = [
- Option "n" ["name"] (ReqArg (\s opts -> return opts { name = s }) "NAME") "set the variable name ('PATH' by default)",
- Option "g" ["global"] (NoArg $ \opts -> return opts { global = True }) "remove the path for all users",
- Option "h" ["help"] (NoArg exitWithHelpMessage) "show this message and exit"
- ]
+optionDescription =
+ [ Option "n" ["name"] (ReqArg (\s opts -> return opts { name = s }) "NAME") "set the variable name ('PATH' by default)"
+ , Option "g" ["global"] (NoArg $ \opts -> return opts { global = True }) "remove the path for all users"
+ , Option "h" ["help"] (NoArg exitWithHelpMessage) "show this message and exit"
+ ]
diff --git a/apps/SetEnv.hs b/apps/SetEnv.hs
index fda9726..f27be4e 100644
--- a/apps/SetEnv.hs
+++ b/apps/SetEnv.hs
@@ -4,63 +4,66 @@
- See LICENSE.txt for details.
-}
-module Main ( main ) where
+module Main (main) where
import System.Console.GetOpt
-import System.Environment ( getArgs, getProgName )
-import System.Exit ( exitFailure, exitSuccess )
-import System.IO ( hPutStr, stderr )
+import System.Environment (getArgs, getProgName)
+import System.Exit (exitFailure, exitSuccess)
+import System.IO (hPutStr, stderr)
import qualified Environment
main :: IO ()
main = do
- rawArgs <- getArgs
- case getOpt Permute optionDescription rawArgs of
- (actions, args, []) -> do
- options <- foldl (>>=) (return defaultOptions) actions
- case args of
- [name, value] -> setEnv name value options
- _ -> invalidNumberOfArguments
- (_, _, errorMessages) ->
- exitWithUsageErrors errorMessages
+ rawArgs <- getArgs
+ case getOpt Permute optionDescription rawArgs of
+ (actions, args, []) -> do
+ options <- foldl (>>=) (return defaultOptions) actions
+ case args of
+ [name, value] -> setEnv name value options
+ _ -> invalidNumberOfArguments
+ (_, _, errorMessages) ->
+ exitWithUsageErrors errorMessages
setEnv :: String -> String -> Options -> IO ()
setEnv name value options = Environment.saveToRegistryWithPrompt (env options) name value
-data Options = Options { env :: Environment.RegistryBasedEnvironment } deriving (Eq, Show)
+data Options = Options
+ { env :: Environment.RegistryBasedEnvironment
+ } deriving (Eq, Show)
defaultOptions :: Options
-defaultOptions = Options { env = Environment.CurrentUserEnvironment }
+defaultOptions = Options
+ { env = Environment.CurrentUserEnvironment
+ }
buildHelpMessage :: IO String
buildHelpMessage = do
- header <- buildHeader
- return $ usageInfo header optionDescription
- where
- buildHeader :: IO String
- buildHeader = do
+ header <- buildHeader
+ return $ usageInfo header optionDescription
+ where
+ buildHeader = do
progName <- getProgName
return $ "Usage: " ++ progName ++ " [OPTIONS...] NAME VALUE\nOptions:"
exitWithHelpMessage :: Options -> IO a
exitWithHelpMessage _ = do
- helpMessage <- buildHelpMessage
- putStr helpMessage
- exitSuccess
+ helpMessage <- buildHelpMessage
+ putStr helpMessage
+ exitSuccess
exitWithUsageErrors :: [String] -> IO a
exitWithUsageErrors errorMessages = do
- hPutStr stderr $ concatMap ("Usage error: " ++) errorMessages
- helpMessage <- buildHelpMessage
- hPutStr stderr helpMessage
- exitFailure
+ hPutStr stderr $ concatMap ("Usage error: " ++) errorMessages
+ helpMessage <- buildHelpMessage
+ hPutStr stderr helpMessage
+ exitFailure
invalidNumberOfArguments :: IO a
invalidNumberOfArguments = exitWithUsageErrors ["invalid number of arguments\n"]
optionDescription :: [OptDescr (Options -> IO Options)]
-optionDescription = [
- Option "g" ["global"] (NoArg $ \opts -> return opts { env = Environment.AllUsersEnvironment }) "save under the registry key for all users",
- Option "h" ["help"] (NoArg exitWithHelpMessage) "show this message and exit"
- ]
+optionDescription =
+ [ Option "g" ["global"] (NoArg $ \opts -> return opts { env = Environment.AllUsersEnvironment }) "save under the registry key for all users"
+ , Option "h" ["help"] (NoArg exitWithHelpMessage) "show this message and exit"
+ ]
diff --git a/apps/UnsetEnv.hs b/apps/UnsetEnv.hs
index 254f383..32626f3 100644
--- a/apps/UnsetEnv.hs
+++ b/apps/UnsetEnv.hs
@@ -4,62 +4,65 @@
- See LICENSE.txt for details.
-}
-module Main ( main ) where
+module Main (main) where
import System.Console.GetOpt
-import System.Environment ( getArgs, getProgName )
-import System.Exit ( exitFailure, exitSuccess )
-import System.IO ( hPutStr, stderr )
+import System.Environment (getArgs, getProgName)
+import System.Exit (exitFailure, exitSuccess)
+import System.IO (hPutStr, stderr)
import qualified Environment
main :: IO ()
main = do
- rawArgs <- getArgs
- case getOpt Permute optionDescription rawArgs of
- (actions, args, []) -> do
- options <- foldl (>>=) (return defaultOptions) actions
- case args of
- [name] -> unsetEnv name options
- _ -> invalidNumberOfArguments
- (_, _, errorMessages) -> exitWithUsageErrors errorMessages
+ rawArgs <- getArgs
+ case getOpt Permute optionDescription rawArgs of
+ (actions, args, []) -> do
+ options <- foldl (>>=) (return defaultOptions) actions
+ case args of
+ [name] -> unsetEnv name options
+ _ -> invalidNumberOfArguments
+ (_, _, errorMessages) -> exitWithUsageErrors errorMessages
unsetEnv :: String -> Options -> IO ()
unsetEnv name options = Environment.wipeFromRegistryWithPrompt (env options) name
-data Options = Options { env :: Environment.RegistryBasedEnvironment } deriving (Eq, Show)
+data Options = Options
+ { env :: Environment.RegistryBasedEnvironment
+ } deriving (Eq, Show)
defaultOptions :: Options
-defaultOptions = Options { env = Environment.CurrentUserEnvironment }
+defaultOptions = Options
+ { env = Environment.CurrentUserEnvironment
+ }
buildHelpMessage :: IO String
buildHelpMessage = do
- header <- buildHeader
- return $ usageInfo header optionDescription
- where
- buildHeader :: IO String
- buildHeader = do
+ header <- buildHeader
+ return $ usageInfo header optionDescription
+ where
+ buildHeader = do
progName <- getProgName
return $ "Usage: " ++ progName ++ " [OPTIONS...] NAME\nOptions:"
exitWithHelpMessage :: a -> IO b
exitWithHelpMessage _ = do
- helpMessage <- buildHelpMessage
- putStr helpMessage
- exitSuccess
+ helpMessage <- buildHelpMessage
+ putStr helpMessage
+ exitSuccess
exitWithUsageErrors :: [String] -> IO a
exitWithUsageErrors errorMessages = do
- hPutStr stderr $ concatMap ("Usage error: " ++) errorMessages
- helpMessage <- buildHelpMessage
- hPutStr stderr helpMessage
- exitFailure
+ hPutStr stderr $ concatMap ("Usage error: " ++) errorMessages
+ helpMessage <- buildHelpMessage
+ hPutStr stderr helpMessage
+ exitFailure
invalidNumberOfArguments :: IO a
invalidNumberOfArguments = exitWithUsageErrors ["invalid number of arguments\n"]
optionDescription :: [OptDescr (Options -> IO Options)]
-optionDescription = [
- Option "g" ["global"] (NoArg $ \opts -> return opts { env = Environment.AllUsersEnvironment }) "delete from the registry key for all users",
- Option "h" ["help"] (NoArg exitWithHelpMessage) "show this message and exit"
- ]
+optionDescription =
+ [ Option "g" ["global"] (NoArg $ \opts -> return opts { env = Environment.AllUsersEnvironment }) "delete from the registry key for all users"
+ , Option "h" ["help"] (NoArg exitWithHelpMessage) "show this message and exit"
+ ]
diff --git a/src/Environment.hs b/src/Environment.hs
index 0690278..2b53258 100644
--- a/src/Environment.hs
+++ b/src/Environment.hs
@@ -4,29 +4,32 @@
- See LICENSE.txt for details.
-}
-module Environment ( saveToRegistry
- , saveToRegistryWithPrompt
- , queryFromRegistry
- , wipeFromRegistry
- , wipeFromRegistryWithPrompt
- , getEnv
- , splitPaths
- , joinPaths
- , RegistryBasedEnvironment(..) ) 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 )
+module Environment
+ ( saveToRegistry
+ , saveToRegistryWithPrompt
+ , queryFromRegistry
+ , wipeFromRegistry
+ , wipeFromRegistryWithPrompt
+ , getEnv
+ , splitPaths
+ , joinPaths
+ , RegistryBasedEnvironment(..)
+ ) 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 Registry
-import qualified Utils ( promptToContinue )
+import qualified Utils (promptToContinue)
-data RegistryBasedEnvironment = CurrentUserEnvironment
- | AllUsersEnvironment
- deriving (Eq, Show)
+data RegistryBasedEnvironment
+ = CurrentUserEnvironment
+ | AllUsersEnvironment
+ deriving (Eq, Show)
registrySubKeyPath :: RegistryBasedEnvironment -> String
registrySubKeyPath CurrentUserEnvironment = "Environment"
@@ -45,12 +48,12 @@ saveToRegistry env = Registry.setString (registryKey env) (registrySubKeyPath en
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
+ 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 (Registry.getString (registryKey env) (registrySubKeyPath env) name) emptyIfDoesNotExist
@@ -66,9 +69,9 @@ wipeFromRegistry env name = catchIOError (Registry.delValue (registryKey env) (r
wipeFromRegistryWithPrompt :: RegistryBasedEnvironment -> String -> IO ()
wipeFromRegistryWithPrompt env name = do
- putStrLn $ "Deleting variable '" ++ name ++ "' from '" ++ registryKeyPath env ++ "'..."
- agreed <- Utils.promptToContinue
- when agreed $ wipeFromRegistry env name
+ 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
diff --git a/src/Registry.hs b/src/Registry.hs
index d6c3f26..a38ef00 100644
--- a/src/Registry.hs
+++ b/src/Registry.hs
@@ -4,21 +4,24 @@
- See LICENSE.txt for details.
-}
-module Registry ( delValue
- , getString
- , hkcu
- , hklm
- , setString
- , KeyHandle ) where
+module Registry
+ ( KeyHandle
+ , delValue
+ , getString
+ , setString
+ , hkcu
+ , hklm
+ ) where
+
+import Control.Exception (bracket)
+import Data.Maybe (fromMaybe)
+import Foreign.ForeignPtr (withForeignPtr)
+import Foreign.Marshal.Alloc (alloca, allocaBytes)
+import Foreign.Ptr (castPtr, plusPtr)
+import Foreign.Storable (peek, poke, sizeOf)
+import Graphics.Win32.Window (sendMessage)
+import System.IO.Error (mkIOError, doesNotExistErrorType)
-import Control.Exception ( bracket )
-import Data.Maybe ( fromMaybe )
-import Foreign.ForeignPtr ( withForeignPtr )
-import Foreign.Marshal.Alloc ( alloca, allocaBytes )
-import Foreign.Ptr ( castPtr, plusPtr )
-import Foreign.Storable ( peek, poke, sizeOf )
-import Graphics.Win32.Window ( sendMessage )
-import System.IO.Error ( mkIOError, doesNotExistErrorType )
import System.Win32.Types
import System.Win32.Registry
@@ -26,69 +29,69 @@ newtype KeyHandle = KeyHandle HKEY
getType :: HKEY -> String -> String -> IO (Maybe RegValueType)
getType key subKeyPath valueName =
- bracket (regOpenKey key subKeyPath) regCloseKey $ \hKey ->
- withForeignPtr hKey $ \p_key ->
- withTString valueName $ \p_valueName ->
- alloca $ \p_type -> do
- ret <- c_RegQueryValueEx p_key p_valueName nullPtr p_type nullPtr nullPtr
- case ret of
- 0x0 -> do
- type_ <- peek p_type
- return $ Just type_
- 0x2 -> return Nothing
- _ -> failWith "RegQueryValueEx" ret
+ bracket (regOpenKey key subKeyPath) regCloseKey $ \hKey ->
+ withForeignPtr hKey $ \p_key ->
+ withTString valueName $ \p_valueName ->
+ alloca $ \p_type -> do
+ ret <- c_RegQueryValueEx p_key p_valueName nullPtr p_type nullPtr nullPtr
+ case ret of
+ 0x0 -> do
+ type_ <- peek p_type
+ return $ Just type_
+ 0x2 -> return Nothing
+ _ -> failWith "RegQueryValueEx" ret
getString :: KeyHandle -> String -> String -> IO String
getString (KeyHandle hKey) subKeyPath valueName =
- bracket (regOpenKey hKey subKeyPath) regCloseKey $ \hSubKey ->
- withForeignPtr hSubKey $ \p_key ->
- withTString valueName $ \p_valueName ->
- alloca $ \dataSizePtr -> do
- poke dataSizePtr 0
- ret <- c_RegQueryValueEx p_key p_valueName nullPtr nullPtr nullPtr dataSizePtr
- case ret of
- 0x0 -> do
- dataSize <- peek dataSizePtr
- let newDataSize = dataSize + fromIntegral (sizeOf (undefined :: TCHAR))
- poke dataSizePtr newDataSize
- allocaBytes (fromIntegral newDataSize) $ \dataPtr -> do
- poke (castPtr $ plusPtr dataPtr $ fromIntegral dataSize) '\0'
- failUnlessSuccess "RegQueryValueEx" $
- c_RegQueryValueEx p_key p_valueName nullPtr nullPtr dataPtr dataSizePtr
- peekTString $ castPtr dataPtr
- 0x2 -> ioError $ mkIOError doesNotExistErrorType "RegQueryValueEx" Nothing $ Just (subKeyPath ++ "\\" ++ valueName)
- _ -> failWith "RegQueryValueEx" ret
+ bracket (regOpenKey hKey subKeyPath) regCloseKey $ \hSubKey ->
+ withForeignPtr hSubKey $ \p_key ->
+ withTString valueName $ \p_valueName ->
+ alloca $ \dataSizePtr -> do
+ poke dataSizePtr 0
+ ret <- c_RegQueryValueEx p_key p_valueName nullPtr nullPtr nullPtr dataSizePtr
+ case ret of
+ 0x0 -> do
+ dataSize <- peek dataSizePtr
+ let newDataSize = dataSize + fromIntegral (sizeOf (undefined :: TCHAR))
+ poke dataSizePtr newDataSize
+ allocaBytes (fromIntegral newDataSize) $ \dataPtr -> do
+ poke (castPtr $ plusPtr dataPtr $ fromIntegral dataSize) '\0'
+ failUnlessSuccess "RegQueryValueEx" $
+ c_RegQueryValueEx p_key p_valueName nullPtr nullPtr dataPtr dataSizePtr
+ peekTString $ castPtr dataPtr
+ 0x2 -> ioError $ mkIOError doesNotExistErrorType "RegQueryValueEx" Nothing $ Just (subKeyPath ++ "\\" ++ valueName)
+ _ -> failWith "RegQueryValueEx" ret
setString :: KeyHandle -> String -> String -> String -> IO ()
setString (KeyHandle hKey) subKeyPath valueName valueValue =
- bracket (regOpenKey hKey subKeyPath) regCloseKey $ \subKey ->
- withTString valueValue $ \p_valueValue -> do
- type_ <- getType hKey subKeyPath valueName
- regSetValueEx subKey valueName (fromMaybe rEG_SZ type_) p_valueValue $ (length valueValue + 1) * sizeOf (undefined :: TCHAR)
- notifyEnvironmentUpdate
+ bracket (regOpenKey hKey subKeyPath) regCloseKey $ \subKey ->
+ withTString valueValue $ \p_valueValue -> do
+ type_ <- getType hKey subKeyPath valueName
+ regSetValueEx subKey valueName (fromMaybe rEG_SZ type_) p_valueValue $ (length valueValue + 1) * sizeOf (undefined :: TCHAR)
+ notifyEnvironmentUpdate
notifyEnvironmentUpdate :: IO ()
notifyEnvironmentUpdate =
- withTString "Environment" $ \p_lparam -> do
- let wparam = 0
- let lparam = fromIntegral $ castPtrToUINTPtr p_lparam
- let hwnd = castUINTPtrToPtr 0xffff
- _ <- sendMessage hwnd wM_SETTINGCHANGE wparam lparam
- return ()
- where
- wM_SETTINGCHANGE = 0x1A
+ withTString "Environment" $ \p_lparam -> do
+ let wparam = 0
+ let lparam = fromIntegral $ castPtrToUINTPtr p_lparam
+ let hwnd = castUINTPtrToPtr 0xffff
+ _ <- sendMessage hwnd wM_SETTINGCHANGE wparam lparam
+ return ()
+ where
+ wM_SETTINGCHANGE = 0x1A
delValue :: KeyHandle -> String -> String -> IO ()
delValue (KeyHandle hKey) subKeyPath valueName =
- bracket (regOpenKey hKey subKeyPath) regCloseKey $ \subKey ->
- withForeignPtr subKey $ \subKeyPtr ->
- withTString valueName $ \p_valueName -> do
- ret <- c_RegDeleteValue subKeyPtr p_valueName
- notifyEnvironmentUpdate
- case ret of
- 0x0 -> return ()
- 0x2 -> ioError $ mkIOError doesNotExistErrorType "RegQueryValueEx" Nothing $ Just (subKeyPath ++ "\\" ++ valueName)
- _ -> failWith "RegDeleteValue" ret
+ bracket (regOpenKey hKey subKeyPath) regCloseKey $ \subKey ->
+ withForeignPtr subKey $ \subKeyPtr ->
+ withTString valueName $ \p_valueName -> do
+ ret <- c_RegDeleteValue subKeyPtr p_valueName
+ notifyEnvironmentUpdate
+ case ret of
+ 0x0 -> return ()
+ 0x2 -> ioError $ mkIOError doesNotExistErrorType "RegQueryValueEx" Nothing $ Just (subKeyPath ++ "\\" ++ valueName)
+ _ -> failWith "RegDeleteValue" ret
hkcu :: KeyHandle
hkcu = KeyHandle hKEY_CURRENT_USER
diff --git a/src/Utils.hs b/src/Utils.hs
index 21ee67b..ec15405 100644
--- a/src/Utils.hs
+++ b/src/Utils.hs
@@ -6,24 +6,24 @@
module Utils where
-import Control.Monad ( liftM )
-import Data.Char ( toLower )
-import System.IO ( hFlush, stdout )
+import Control.Monad (liftM)
+import Data.Char (toLower)
+import System.IO (hFlush, stdout)
prompt :: String -> IO String
prompt banner = do
- putStr banner
- hFlush stdout
- getLine
+ putStr banner
+ hFlush stdout
+ getLine
promptYesNo :: String -> IO Bool
promptYesNo banner = do
- response <- liftM (map toLower) $ prompt banner
- if response `elem` yeses
- then return True
- else if response `elem` noes
- then return False
- else promptToContinue
+ response <- liftM (map toLower) $ prompt banner
+ if response `elem` yeses
+ then return True
+ else if response `elem` noes
+ then return False
+ else promptToContinue
where
yeses = ["y", "yes"]
noes = ["n", "no"]
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 15:24:18 +0000