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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 (when)
import Data.List (union)
import Data.Maybe (fromMaybe)
import System.Directory (createDirectoryIfMissing, getCurrentDirectory)
import System.FilePath (combine)
import Options.Applicative
import qualified Environment
data Options = Options
{ optYes :: Bool
, optGlobal :: Bool
} deriving (Eq, Show)
options :: Parser Options
options = Options
<$> optYesDesc
<*> optGlobalDesc
where
optYesDesc = switch $
long "yes" <> short 'y' <>
help "Skip confirmation prompt"
optGlobalDesc = switch $
long "global" <> short 'g' <>
help "Set up for all users"
getRemoteSymbolsDirectoryPath :: IO String
getRemoteSymbolsDirectoryPath = do
localPath <- getLocalPath
createDirectoryIfMissing True localPath
return $ "SRV*" ++ localPath ++ "*" ++ remotePath
where
getLocalPath = do
cwd <- getCurrentDirectory
return $ combine cwd "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
fixNtSymbolPath :: Options -> IO ()
fixNtSymbolPath options = do
oldValue <- Environment.query env varName
let oldPaths = Environment.pathSplit $ fromMaybe "" oldValue
pathsToAdd <- addPaths
let newPaths = union oldPaths pathsToAdd
when (length oldPaths /= length newPaths) $ do
let newValue = Environment.pathJoin newPaths
engrave env varName newValue
where
varName = "_NT_SYMBOL_PATH"
addPaths = sequence [getRemoteSymbolsDirectoryPath, getPdbsDirectoryPath]
forAllUsers = optGlobal options
env | forAllUsers = Environment.AllUsers
| otherwise = Environment.CurrentUser
skipPrompt = optYes options
engrave
| skipPrompt = Environment.engrave
| otherwise = Environment.engraveWithPrompt
main :: IO ()
main = execParser parser >>= fixNtSymbolPath
where
parser = info (helper <*> options) $
fullDesc <> progDesc "Set up your _NT_SYMBOL_PATH"
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