97 lines
3 KiB
Haskell
97 lines
3 KiB
Haskell
module Main (main) where
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import qualified Data.ByteString.Lazy as ByteString
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import Data.ByteString.Lazy (ByteString)
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import qualified Data.YAML as YAML
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import qualified Data.Text.Lazy.IO as Text
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import qualified Options.Applicative as Opt
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import System.IO (hPrint, stderr)
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import Text.Printf (printf)
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import Control.Applicative
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import Control.Monad
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import SinglePage
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data Options =
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Options {
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verbose :: Bool,
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mode :: ModeOptions
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}
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deriving Show
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data ModeOptions =
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SinglePage {
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file :: FilePath,
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nsfw :: Bool,
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output :: Maybe FilePath
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}
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| GalleryPage {
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files :: [FilePath],
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nsfw :: Bool,
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output :: Maybe FilePath
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}
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deriving Show
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optionsParser :: Opt.ParserInfo Options
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optionsParser = globalOpts `Opt.info` mainInfo where
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globalOpts = Options <$> verboseOpt <*> subcommands <**> Opt.helper
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verboseOpt = Opt.switch $
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Opt.short 'v' <> Opt.long "verbose" <>
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Opt.help "print extra stuff to stderr"
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subcommands = Opt.hsubparser (single <> gallery)
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single = Opt.command "single" $ singleOpts `Opt.info` singleInfo
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singleOpts = SinglePage <$> fileArg <*> nsfwSwitchS <*> outputOpt
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fileArg = Opt.strArgument $
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Opt.metavar "FILE" <> Opt.help "yaml file to read"
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nsfwSwitchS = Opt.switch $
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Opt.short 'n' <> Opt.long "nsfw" <>
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Opt.help "include nsfw versions"
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outputOpt = Opt.option (Just <$> Opt.str) $
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Opt.short 'o' <> Opt.long "output" <> Opt.metavar "FILE" <>
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Opt.value Nothing <>
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Opt.help "output file (default: stdout)"
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singleInfo = Opt.progDesc "generate a page for a single work"
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gallery = Opt.command "gallery" $ galleryOpts `Opt.info` galleryInfo
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galleryOpts = GalleryPage <$> filesArg <*> nsfwSwitchG <*> outputOpt
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filesArg = many $ Opt.strArgument $
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Opt.metavar "FILE..." <> Opt.help "yaml files to read"
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nsfwSwitchG = Opt.switch $
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Opt.short 'n' <> Opt.long "nsfw" <>
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Opt.help "include works with only nsfw versions"
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galleryInfo = Opt.progDesc "generate a gallery page"
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mainInfo = Opt.progDesc "static gallery site generator" <> Opt.fullDesc
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main :: IO ()
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main = do
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opts <- Opt.execParser optionsParser
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printVerbose opts opts
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main2 opts
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main2 :: Options -> IO ()
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main2 opts@(Options {mode = SinglePage {file, nsfw, output}}) = do
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info <- readYAML file
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printVerbose opts info
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let page = make nsfw info
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case output of
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Nothing -> Text.putStr page
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Just out -> Text.writeFile out page
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main2 (Options {mode = GalleryPage {}}) = do
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error "surprise! this doesn't exist yet"
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printVerbose :: Show a => Options -> a -> IO ()
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printVerbose (Options {verbose}) x = when verbose $ hPrint stderr x
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readYAML :: YAML.FromYAML a => FilePath -> IO a
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readYAML file = ByteString.readFile file >>= decode1Must file
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decode1Must :: YAML.FromYAML a => FilePath -> ByteString -> IO a
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decode1Must file txt =
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case YAML.decode1 txt of
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Right val -> pure val
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Left (YAML.Pos {posLine, posColumn}, err) ->
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fail $ printf "%s:%i:%i: %s" file posLine posColumn err
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