ghcup-hs/app/ghcup-gen/Main.hs
2021-10-17 19:15:24 +02:00

155 lines
5.3 KiB
Haskell

{-# LANGUAGE CPP #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE TypeApplications #-}
module Main where
import GHCup.Types
import GHCup.Errors
import GHCup.Platform
import GHCup.Utils.Dirs
import GHCup.Utils.Logger
import GHCup.Types.JSON ( )
import Control.Monad.Trans.Reader ( runReaderT )
import Control.Monad.IO.Class
import Data.Char ( toLower )
import Data.Maybe
#if !MIN_VERSION_base(4,13,0)
import Data.Semigroup ( (<>) )
#endif
import Options.Applicative hiding ( style )
import Haskus.Utils.Variant.Excepts
import System.Console.Pretty
import System.Environment
import System.Exit
import System.IO ( stderr )
import Text.Regex.Posix
import Validate
import Text.PrettyPrint.HughesPJClass ( prettyShow )
import qualified Data.Text.IO as T
import qualified Data.Text as T
import qualified Data.ByteString as B
import qualified Data.YAML.Aeson as Y
data Options = Options
{ optCommand :: Command
}
data Command = ValidateYAML ValidateYAMLOpts
| ValidateTarballs ValidateYAMLOpts TarballFilter
data Input
= FileInput FilePath -- optsparse-applicative doesn't handle ByteString correctly anyway
| StdInput
fileInput :: Parser Input
fileInput =
FileInput
<$> strOption
(long "file" <> short 'f' <> metavar "FILENAME" <> help
"Input file to validate"
)
stdInput :: Parser Input
stdInput = flag'
StdInput
(short 'i' <> long "stdin" <> help "Validate from stdin (default)")
inputP :: Parser Input
inputP = fileInput <|> stdInput
data ValidateYAMLOpts = ValidateYAMLOpts
{ vInput :: Maybe Input
}
validateYAMLOpts :: Parser ValidateYAMLOpts
validateYAMLOpts = ValidateYAMLOpts <$> optional inputP
tarballFilterP :: Parser TarballFilter
tarballFilterP = option readm $
long "tarball-filter" <> short 'u' <> metavar "<tool>-<version>" <> value def
<> help "Only check certain tarballs (format: <tool>-<version>)"
where
def = TarballFilter (Right Nothing) (makeRegex ("" :: String))
readm = do
s <- str
case span (/= '-') s of
(_, []) -> fail "invalid format, missing '-' after the tool name"
(t, v) | [tool] <- [ tool | tool <- [minBound..maxBound], low (show tool) == low t ] ->
pure (TarballFilter $ Right $ Just tool) <*> makeRegexOptsM compIgnoreCase execBlank (drop 1 v)
(t, v) | [tool] <- [ tool | tool <- [minBound..maxBound], low (show tool) == low t ] ->
pure (TarballFilter $ Left tool) <*> makeRegexOptsM compIgnoreCase execBlank (drop 1 v)
_ -> fail "invalid tool"
low = fmap toLower
opts :: Parser Options
opts = Options <$> com
com :: Parser Command
com = subparser
( command
"check"
( ValidateYAML
<$> info (validateYAMLOpts <**> helper)
(progDesc "Validate the YAML")
)
<> command
"check-tarballs"
(info
((ValidateTarballs <$> validateYAMLOpts <*> tarballFilterP) <**> helper)
(progDesc "Validate all tarballs (download and checksum)")
)
)
main :: IO ()
main = do
no_color <- isJust <$> lookupEnv "NO_COLOR"
let loggerConfig = LoggerConfig { lcPrintDebug = True
, consoleOutter = T.hPutStr stderr
, fileOutter = \_ -> pure ()
, fancyColors = not no_color
}
dirs <- liftIO getAllDirs
let leanAppstate = LeanAppState (Settings True False Never Curl True GHCupURL False GPGNone False) dirs defaultKeyBindings loggerConfig
pfreq <- (
flip runReaderT leanAppstate . runE @'[NoCompatiblePlatform, NoCompatibleArch, DistroNotFound] $ platformRequest
) >>= \case
VRight r -> pure r
VLeft e -> do
flip runReaderT leanAppstate $ logError $ T.pack $ prettyShow e
liftIO $ exitWith (ExitFailure 2)
let appstate = AppState (Settings True False Never Curl True GHCupURL False GPGNone False) dirs defaultKeyBindings (GHCupInfo mempty mempty mempty) pfreq loggerConfig
_ <- customExecParser (prefs showHelpOnError) (info (opts <**> helper) idm)
>>= \Options {..} -> case optCommand of
ValidateYAML vopts -> withValidateYamlOpts vopts (\dl m -> flip runReaderT appstate $ validate dl m)
ValidateTarballs vopts tarballFilter -> withValidateYamlOpts vopts (\dl m -> flip runReaderT appstate $ validateTarballs tarballFilter dl m)
pure ()
where
withValidateYamlOpts vopts f = case vopts of
ValidateYAMLOpts { vInput = Nothing } ->
B.getContents >>= valAndExit f
ValidateYAMLOpts { vInput = Just StdInput } ->
B.getContents >>= valAndExit f
ValidateYAMLOpts { vInput = Just (FileInput file) } ->
B.readFile file >>= valAndExit f
valAndExit f contents = do
(GHCupInfo _ av gt) <- case Y.decode1Strict contents of
Right r -> pure r
Left (_, e) -> die (color Red $ show e)
f av gt
>>= exitWith