implicit-hie/app/Main.hs

38 lines
1.1 KiB
Haskell

{-# LANGUAGE MultiWayIf #-}
module Main where
import Control.Monad
import Control.Monad.Trans.Maybe
import Data.Attoparsec.Text
import Data.List
import Data.Maybe
import qualified Data.Text as T
import qualified Data.Text.IO as T
import Hie.Cabal.Parser
import Hie.Locate
import Hie.Yaml
import System.Directory
import System.Directory.Internal
import System.FilePath.Posix
main :: IO ()
main = do
pwd <- getCurrentDirectory
files <- listDirectory pwd
let name =
if | any (("dist-newstyle" ==) . takeFileName) files -> "cabal"
| any ((".stack-work" ==) . takeFileName) files -> "stack"
| any (("cabal.project" ==) . takeFileName) files -> "cabal"
| any (("stack.yaml" ==) . takeFileName) files -> "stack"
| otherwise -> "cabal"
cfs <- runMaybeT $ case name of
"cabal" -> cabalPkgs pwd
_ -> stackYamlPkgs pwd
when (null cfs) $ error $
"No .cabal files found under"
<> pwd
<> "\n You may need to run stack build."
pkgs <- catMaybes <$> mapM (nestedPkg pwd) (concat cfs)
putStr <$> hieYaml name $ fmtPkgs name pkgs