diff options
Diffstat (limited to '')
-rw-r--r-- | apps/ListPath.hs | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/apps/ListPath.hs b/apps/ListPath.hs index 63460b9..469fbba 100644 --- a/apps/ListPath.hs +++ b/apps/ListPath.hs @@ -16,13 +16,13 @@ import Options.Applicative import qualified Environment data Options = Options - { name :: String + { optName :: String } deriving (Eq, Show) options :: Parser Options -options = Options <$> nameOption +options = Options <$> optNameDesc where - nameOption = strOption $ + optNameDesc = strOption $ long "name" <> short 'n' <> metavar "NAME" <> value "PATH" <> help "Specify variable name ('PATH' by default)" @@ -32,14 +32,14 @@ main = execParser parser >>= listPath parser = info (helper <*> options) $ fullDesc <> progDesc "List directories in your PATH" -getEnv :: String -> IO String -getEnv = liftM (fromMaybe "") . lookupEnv - listPath :: Options -> IO () listPath options = do - val <- getEnv $ name options - mapM_ printPath $ Environment.pathSplit val + oldValue <- getEnv varName + let oldPaths = Environment.pathSplit oldValue + mapM_ printPath oldPaths where + varName = optName options + getEnv = liftM (fromMaybe "") . lookupEnv printPath p = do exists <- doesDirectoryExist p putStrLn $ (if exists then "+" else "-") ++ " " ++ p |