172 lines
6.3 KiB
Haskell
172 lines
6.3 KiB
Haskell
{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE NoImplicitPrelude #-}
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import Protolude
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import Development.Shake
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import Development.Shake.Command
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import Development.Shake.FilePath
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import Development.Shake.Util
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import Control.Monad.Fail
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import Data.Aeson
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import Text.Megaparsec
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import Data.Default ( Default(def) )
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import qualified Data.Set as Set
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import qualified Data.Text as T
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import Text.Mustache
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import Text.Pandoc.Class ( PandocPure, PandocMonad)
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import qualified Text.Pandoc.Class as Pandoc
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import Text.Pandoc.Definition ( Pandoc(..)
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, Block(..)
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, Inline
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, nullMeta
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, docTitle
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, lookupMeta
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, docDate
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, docAuthors
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)
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import Text.Pandoc.Extensions ( getDefaultExtensions )
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import Text.Pandoc.Options ( ReaderOptions(..)
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, WriterOptions(..)
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, TrackChanges(RejectChanges)
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)
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import qualified Text.Pandoc.Readers as Readers
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import qualified Text.Pandoc.Templates as PandocTemplates
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import qualified Text.Pandoc.Writers as Writers
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main :: IO ()
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main = shakeArgs shOpts buildRules
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where
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shOpts =
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shakeOptions
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{ shakeVerbosity = Chatty
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, shakeLintInside = ["\\"]
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}
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-- Configuration
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-- Should probably go in a Reader Monad
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siteDir :: FilePath
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siteDir = "_site"
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optimDir :: FilePath
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optimDir = "_optim"
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-- BlogPost data structure (a bit of duplication because the metas are in Pandoc)
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data BlogPost =
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BlogPost { postTitle :: T.Text
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, postDate :: T.Text
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, postAuthors :: [T.Text]
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, postUrl :: FilePath
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, postToc :: Bool
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, postBody :: Pandoc
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}
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inlineToText :: PandocMonad m => [Inline] -> m T.Text
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inlineToText inline =
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Writers.writeAsciiDoc def (Pandoc nullMeta [Plain inline])
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getBlogpostFromMetas
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:: (MonadIO m, MonadFail m) => [Char] -> Bool -> Pandoc -> m BlogPost
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getBlogpostFromMetas path toc pandoc@(Pandoc meta _) = do
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eitherBlogpost <- liftIO $ Pandoc.runIO $ do
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title <- inlineToText $ docTitle meta
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date <- inlineToText $ docDate meta
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authors <- mapM inlineToText $ docAuthors meta
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return $ BlogPost title date authors path toc pandoc
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case eitherBlogpost of
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Left _ -> fail "BAD"
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Right bp -> return bp
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sortByPostDate :: [BlogPost] -> [BlogPost]
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sortByPostDate =
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sortBy (\b a -> compare (Down (postDate a)) (Down (postDate b)))
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build :: FilePath -> FilePath
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build = (</>) siteDir
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buildRules :: Rules ()
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buildRules = do
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cleanRule
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allRule
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getPost <- mkGetPost
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getPosts <- mkGetPosts getPost
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getTemplate <- mkGetTemplate
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let cssDeps = map (siteDir </>) <$> getDirectoryFiles "src" ["css/*.css"]
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-- templateDeps = getDirectoryFiles "templates" ["*.mustache"]
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build "//*.html" %> \out -> do
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css <- cssDeps
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-- templates <- templateDeps
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template <- getTemplate ("templates" </> "main.mustache")
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let srcFile = "src" </> (dropDirectory1 (replaceExtension out "org"))
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liftIO $ putText $ "need: " <> (toS srcFile) <> " <- " <> (toS out)
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need $ css <> [srcFile]
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bp <- getPost srcFile
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eitherHtml <- liftIO $ Pandoc.runIO $ Writers.writeHtml5String (def { writerTableOfContents = (postToc bp) }) (postBody bp)
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case eitherHtml of
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Left _ -> fail "BAD"
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Right innerHtml ->
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let htmlContent = renderMustache template $ object [ "title" .= postTitle bp
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, "authors" .= postAuthors bp
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, "date" .= postDate bp
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, "body" .= innerHtml
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]
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in writeFile' out (toS htmlContent)
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build "articles.html" %> \out -> do
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css <- cssDeps
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posts <- getPosts ()
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need $ css <> map postUrl (sortByPostDate posts)
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let titles = toS $ T.intercalate "\n" $ map postTitle posts
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writeFile' out titles
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build "css/*.css" %> \out -> do
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let src = "src" </> (dropDirectory1 out)
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dst = out
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liftIO $ putText $ toS $ "src:" <> src <> " => dst: " <> dst
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copyFile' src dst
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allRule :: Rules ()
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allRule =
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phony "all" $ do
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allOrgFiles <- getDirectoryFiles "src" ["//*.org"]
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let allHtmlFiles = map (flip replaceExtension "html") allOrgFiles
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need (map build (allHtmlFiles <> ["index.html", "articles.html"]))
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cleanRule :: Rules ()
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cleanRule =
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phony "clean" $ do
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putInfo "Cleaning files in _site and _optim"
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forM_ [siteDir,optimDir] $ flip removeFilesAfter ["//*"]
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mkGetTemplate :: Rules (FilePath -> Action Template)
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mkGetTemplate = newCache $ \path -> do
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fileContent <- readFile' path
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let res = compileMustacheText "page" (toS fileContent)
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case res of
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Left _ -> fail "BAD"
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Right template -> return template
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tocRequested :: Text -> Bool
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tocRequested fc =
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let toc = fc & T.lines
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& map T.toLower
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& filter (T.isPrefixOf (T.pack "#+options: "))
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& head
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& fmap (filter (T.isPrefixOf (T.pack "toc:")) . T.words)
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in toc == Just ["toc:t"]
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mkGetPost :: Rules (FilePath -> Action BlogPost)
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mkGetPost = newCache $ \path -> do
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fileContent <- readFile' path
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let toc = tocRequested (toS fileContent)
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eitherResult <- liftIO $ Pandoc.runIO $ Readers.readOrg def (toS fileContent)
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case eitherResult of
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Left _ -> fail "BAD"
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Right pandoc -> getBlogpostFromMetas path toc pandoc
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mkGetPosts :: (FilePath -> Action b) -> Rules (() -> Action [b])
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mkGetPosts getPost =
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newCache $ \() -> mapM getPost =<< getDirectoryFiles "" ["src/posts//*.org"]
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