become a proper stack project

1 files changed, 51 insertions, 0 deletions

diff --git a/apps/FixNtSymbolPath.hs b/apps/FixNtSymbolPath.hs
new file mode 100644
index 0000000..404dc77
--- /dev/null
+++ b/apps/FixNtSymbolPath.hs
@@ -0,0 +1,51 @@
+{-
+ - 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 ( unless )
+import System.Directory ( createDirectoryIfMissing, getCurrentDirectory )
+import System.FilePath ( combine )
+
+import qualified EnvUtils
+
+getRemoteSymbolsDirectoryPath :: IO String
+getRemoteSymbolsDirectoryPath = do
+  localPath <- getLocalPath
+  createDirectoryIfMissing True localPath
+  return $ "SRV*" ++ localPath ++ "*" ++ remotePath
+    where
+      getLocalPath :: IO String
+      getLocalPath = do
+        cwd <- getCurrentDirectory
+        return $ combine cwd "symbols"
+      remotePath :: String
+      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 :: IO ()
+fixNtSymbolPath = do
+  let env = EnvUtils.CurrentUserEnvironment
+  val <- EnvUtils.queryFromRegistry env ntSymbolPath
+  let presentPaths = EnvUtils.splitPaths val
+  remoteSymbolsPath <- getRemoteSymbolsDirectoryPath
+  pdbsPath <- getPdbsDirectoryPath
+  let requiredPaths = [pdbsPath, remoteSymbolsPath]
+  let missingPaths = filter (`notElem` presentPaths) requiredPaths
+  unless (null missingPaths) $ do
+    let newval = EnvUtils.joinPaths $ presentPaths ++ missingPaths
+    EnvUtils.saveToRegistry env ntSymbolPath newval
+  where
+    ntSymbolPath = "_NT_SYMBOL_PATH"
+
+main :: IO ()
+main = fixNtSymbolPath