From fbbb3590c7f6eca69a5c77a5215c29363595cd0d Mon Sep 17 00:00:00 2001
From: Daniel Gröber <dxld@darkboxed.org>
Date: Fri, 12 Oct 2018 00:41:38 +0200
Subject: Move 'mightExist' to Common module

---
 src/CabalHelper/Shared/Common.hs  | 5 +++++
 src/CabalHelper/Shared/Sandbox.hs | 9 ++-------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/CabalHelper/Shared/Common.hs b/src/CabalHelper/Shared/Common.hs
index 8e8418b..d60e745 100644
--- a/src/CabalHelper/Shared/Common.hs
+++ b/src/CabalHelper/Shared/Common.hs
@@ -162,3 +162,8 @@ readPackageDescription = P.readGenericPackageDescription
 #else
 readPackageDescription = P.readPackageDescription
 #endif
+
+mightExist :: FilePath -> IO (Maybe FilePath)
+mightExist f = do
+  exists <- doesFileExist f
+  return $ if exists then (Just f) else (Nothing)
diff --git a/src/CabalHelper/Shared/Sandbox.hs b/src/CabalHelper/Shared/Sandbox.hs
index f7b7470..d2172a2 100644
--- a/src/CabalHelper/Shared/Sandbox.hs
+++ b/src/CabalHelper/Shared/Sandbox.hs
@@ -28,11 +28,12 @@ import Data.Maybe
 import Data.List
 import Data.Version
 import System.FilePath
-import System.Directory
 import Prelude
 
 import qualified Data.Traversable as T
 
+import CabalHelper.Shared.Common
+
 -- | Get the path to the sandbox package-db in a project
 getSandboxPkgDb :: String
              -- ^ Cabal build platform, i.e. @buildPlatform@
@@ -68,12 +69,6 @@ extractSandboxDbDir conf = extractValue <$> parse conf
     parse = listToMaybe . filter (key `isPrefixOf`) . lines
     extractValue = CabalHelper.Shared.Sandbox.dropWhileEnd isSpace . dropWhile isSpace . drop keyLen
 
-
-mightExist :: FilePath -> IO (Maybe FilePath)
-mightExist f = do
-  exists <- doesFileExist f
-  return $ if exists then (Just f) else (Nothing)
-
 -- dropWhileEnd is not provided prior to base 4.5.0.0.
 dropWhileEnd :: (a -> Bool) -> [a] -> [a]
 dropWhileEnd p = foldr (\x xs -> if p x && null xs then [] else x : xs) []
-- 
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