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authorEgor Tensin <Egor.Tensin@gmail.com>2016-12-13 01:47:35 +0300
committerEgor Tensin <Egor.Tensin@gmail.com>2016-12-13 01:47:35 +0300
commitd7d33810d562a80e0954bafe045ae2275109999a (patch)
treeb07e041a8d6c840df460b5a6dd3e4fa1d56b29a8 /apps/UnsetEnv.hs
parentuse monad transformers (diff)
downloadwindows-env-d7d33810d562a80e0954bafe045ae2275109999a.tar.gz
windows-env-d7d33810d562a80e0954bafe045ae2275109999a.zip
bugfix (withPrompt no longer swallows IOError)
Diffstat (limited to 'apps/UnsetEnv.hs')
-rw-r--r--apps/UnsetEnv.hs14
1 files changed, 7 insertions, 7 deletions
diff --git a/apps/UnsetEnv.hs b/apps/UnsetEnv.hs
index d56d40c..f0352b4 100644
--- a/apps/UnsetEnv.hs
+++ b/apps/UnsetEnv.hs
@@ -6,12 +6,12 @@
module Main (main) where
-import Control.Monad (void)
-import Control.Monad.Trans.Class
-import Control.Monad.Trans.Except
+import Control.Monad (void)
+import Control.Monad.Trans.Except (runExceptT)
import System.IO.Error (ioError)
-import Options.Applicative
+import Options.Applicative
+
import qualified Windows.Environment as Env
import Prompt
@@ -46,9 +46,7 @@ main = execParser parser >>= unsetEnv
fullDesc <> progDesc "Unset environment variables"
unsetEnv :: Options -> IO ()
-unsetEnv options = do
- ret <- runExceptT $ lift $ void $ promptAnd $ runExceptT wipe
- either ioError return ret
+unsetEnv options = runExceptT doUnsetEnv >>= either ioError return
where
varName = optName options
@@ -63,3 +61,5 @@ unsetEnv options = do
| otherwise = withPrompt $ wipeMessage profile varName
wipe = Env.wipe profile varName
+
+ doUnsetEnv = void $ promptAnd wipe