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{-
- 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 Main (main) where
import Control.Monad (void)
import Options.Applicative
import qualified Windows.Environment as Env
import Prompt
import PromptMessage
data Options = Options
{ optYes :: Bool
, optGlobal :: Bool
, optName :: Env.VarName
, optValue :: Env.VarValue
} deriving (Eq, Show)
optionParser :: Parser Options
optionParser = Options
<$> optYesDesc
<*> optGlobalDesc
<*> optNameDesc
<*> optValueDesc
where
optYesDesc = switch $
long "yes" <> short 'y' <>
help "Skip confirmation prompt"
optGlobalDesc = switch $
long "global" <> short 'g' <>
help "Set for all users"
optNameDesc = argument str $
metavar "NAME" <>
help "Variable name"
optValueDesc = argument str $
metavar "VALUE" <>
help "Variable value"
main :: IO ()
main = execParser parser >>= setEnv
where
parser = info (helper <*> optionParser) $
fullDesc <> progDesc "Set environment variable"
setEnv :: Options -> IO ()
setEnv options = void $ promptAnd engrave
where
varName = optName options
varValue = optValue options
forAllUsers = optGlobal options
profile
| forAllUsers = Env.AllUsers
| otherwise = Env.CurrentUser
skipPrompt = optYes options
promptAnd
| skipPrompt = withoutPrompt
| otherwise = withPrompt $ engraveMessage profile varName Nothing varValue
engrave = Env.engrave profile varName varValue
|
