blogng/site.hs

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{-# LANGUAGE OverloadedStrings #-}
import           Data.Monoid (mappend)
import           Hakyll
import           Hakyll.Core.Identifier (toFilePath)
import           System.FilePath
import           Text.Regex (splitRegex, mkRegex)



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main :: IO ()
main = hakyll $ do
    match "images/*" $ do
        route   idRoute
        compile copyFileCompiler

    match "css/*" $ do
        route   idRoute
        compile compressCssCompiler

    match (fromList ["about.rst", "contact.markdown"]) $ do
        route   $ setExtension "html"
        compile $ pandocCompiler
            >>= loadAndApplyTemplate "templates/default.html" defaultContext
            >>= relativizeUrls

    match "blog/*" $ do
        route $  octopressRoute
        compile $ pandocCompiler
            >>= loadAndApplyTemplate "templates/post.html"    postCtx
            >>= loadAndApplyTemplate "templates/default.html" postCtx
            >>= relativizeUrls

    create ["archive.html"] $ do
        route idRoute
        compile $ do
            posts <- recentFirst =<< loadAll "blog/*"
            let archiveCtx =
                    listField "posts" postCtx (return posts) `mappend`
                    constField "title" "Archives"            `mappend`
                    defaultContext

            makeItem ""
                >>= loadAndApplyTemplate "templates/archive.html" archiveCtx
                >>= loadAndApplyTemplate "templates/default.html" archiveCtx
                >>= relativizeUrls


    match "index.html" $ do
        route idRoute
        compile $ do
            posts <- recentFirst =<< loadAll "blog/*"
            let indexCtx =
                    listField "posts" postCtx (return posts) `mappend`
                    constField "title" "Home"                `mappend`
                    defaultContext

            getResourceBody
                >>= applyAsTemplate indexCtx
                >>= loadAndApplyTemplate "templates/default.html" indexCtx
                >>= relativizeUrls

    match "templates/*" $ compile templateBodyCompiler


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postCtx :: Context String
postCtx =
    dateField "date" "%B %e, %Y" `mappend`
    defaultContext

-- octopress compatible routes
octopressRoute :: Routes
octopressRoute = customRoute $ octoMangaling

octoMangaling :: Identifier -> FilePath
octoMangaling pathId = base </> year </> month </> day </> post </> "index.html"
  where
    p = toFilePath pathId
    base = takeDirectory p
    seps = splitRegex (mkRegex "-") $ takeBaseName p
    year:month:day:xs = seps
    post = tail $ foldl (\a b -> a ++ "-" ++ b) "" xs