optparse and haskeline working well

app/Main.hs

@@ -1,6 +1,42 @@
+{-# LANGUAGE DeriveGeneric     #-}
+{-# LANGUAGE OverloadedStrings #-}
+
 module Main where
 
-import Lib
+import Options.Generic
+import System.Console.Haskeline (defaultSettings, runInputT, getInputLine, outputStrLn, InputT, getPassword)
+import Data.Foldable (forM_)
+
+data Options
+  = Auth
+  | Whoami
+  | Publish
+  | Search
+  deriving (Generic, Show)
+
+
+instance ParseRecord Options
+
+auth :: IO ()
+auth = runInputT defaultSettings operations
+  where operations :: InputT IO ()
+        operations = do
+          login <- getInputLine "login : "
+          password <- getPassword Nothing "password : "
+          case (login, password) of
+            (Nothing, _) -> return ()
+            (_, Nothing) -> return ()
+            (Just x, Just y) -> outputStrLn $ x ++ " - " ++ y
+
+processOptions :: Options -> IO()
+processOptions x = case x of
+  Auth -> auth
+  Whoami -> putStrLn "whoami todo"
+  Publish -> putStrLn "publish todo"
+  Search -> putStrLn "search todo"
+
 
 main :: IO ()
-main = someFunc
+main = do
+  x <- getRecord "kreg"
+  processOptions x

kreg.cabal

@@ -25,6 +25,8 @@ executable kreg-exe
   ghc-options:         -threaded -rtsopts -with-rtsopts=-N
   build-depends:       base
                      , kreg
+                     , optparse-generic
+                     , haskeline
   default-language:    Haskell2010
 
 test-suite kreg-test

stack.yaml

@@ -1,35 +1,8 @@
-# This file was automatically generated by stack init
-# For more information, see: http://docs.haskellstack.org/en/stable/yaml_configuration/
-
-# Specifies the GHC version and set of packages available (e.g., lts-3.5, nightly-2015-09-21, ghc-7.10.2)
-resolver: lts-5.15
-
-# Local packages, usually specified by relative directory name
-packages:
-- '.'
-# Packages to be pulled from upstream that are not in the resolver (e.g., acme-missiles-0.3)
-extra-deps: []
-
-# Override default flag values for local packages and extra-deps
 flags: {}
-
-# Extra package databases containing global packages
 extra-package-dbs: []
-
-# Control whether we use the GHC we find on the path
-# system-ghc: true
-
-# Require a specific version of stack, using version ranges
-# require-stack-version: -any # Default
-# require-stack-version: >= 1.0.0
-
-# Override the architecture used by stack, especially useful on Windows
-# arch: i386
-# arch: x86_64
-
-# Extra directories used by stack for building
-# extra-include-dirs: [/path/to/dir]
-# extra-lib-dirs: [/path/to/dir]
-
-# Allow a newer minor version of GHC than the snapshot specifies
-# compiler-check: newer-minor
+packages:
+- '.'
+extra-deps:
+- optparse-generic-1.1.0
+- text-1.2.2.1
+resolver: lts-5.15