18 lines
419 B
Haskell
18 lines
419 B
Haskell
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module Main where
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import MiniEffects.App (defaultEnv, renderError, runGreetingApp)
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import System.Environment (getArgs)
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import System.Exit (die)
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main :: IO ()
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main = do
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args <- getArgs
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let rawName =
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case args of
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[] -> "learner"
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firstArg : _ -> firstArg
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case runGreetingApp defaultEnv rawName of
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Left appError -> die (renderError appError)
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Right greeting -> putStrLn greeting
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