Updated categoryblog example to Hakyll-2.x.
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4 changed files with 37 additions and 40 deletions
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module Main where
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import Control.Arrow ((>>>), arr)
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import Text.Hakyll (hakyll)
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import Text.Hakyll.Render
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import Text.Hakyll.Tags (TagMap, readCategoryMap)
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import Text.Hakyll.Tags (readCategoryMap, withTagMap)
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import Text.Hakyll.Feed (FeedConfiguration (..), renderRss)
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import Text.Hakyll.File (getRecursiveContents, directory, removeSpaces, sortByBaseName)
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import Text.Hakyll.Renderables (createPagePath, createCustomPage, createListingWith, createListing)
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import Text.Hakyll.Context (ContextManipulation, renderDate)
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import Text.Hakyll.CreateContext (createPage, createCustomPage, createListing)
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import Text.Hakyll.ContextManipulations (renderDate, copyValue, changeValue)
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import Text.Hakyll.Util (link)
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import Data.Map (toList)
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import Control.Monad (mapM_, liftM, (<=<))
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import Data.Either (Either(..))
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main = hakyll $ do
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main = hakyll "http://example.com" $ do
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-- Static directory.
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directory css "css"
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-- Find all post paths.
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postPaths <- liftM (reverse . sortByBaseName) $ getRecursiveContents "posts"
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let renderablePosts = map createPagePath postPaths
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let renderablePosts = map ((>>> postManipulation) . createPage) postPaths
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-- Read category map.
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categoryMap <- readCategoryMap "categoryMap" renderablePosts
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let categoryMap = readCategoryMap "categoryMap" postPaths
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-- Render all posts list.
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renderPostList "posts.html" "All posts" renderablePosts
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-- Render post list per category
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mapM_ (\(category, posts) -> renderPostList (categoryToUrl category) ("Posts about " ++ category) posts)
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(toList categoryMap)
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let renderListForCategory category posts =
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renderPostList (categoryToUrl category) ("Posts about " ++ category)
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(map (>>> postManipulation) posts)
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withTagMap categoryMap renderListForCategory
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-- Render index, including recent posts.
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let index = createListingWith postManipulation "index.html"
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"templates/postitem.html"
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(take 3 renderablePosts)
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[ ("title", "Home")
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, ("categories", categoryList categoryMap)
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]
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let index = createListing "index.html"
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["templates/postitem.html"]
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(take 3 renderablePosts)
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[ ("title", Left "Home")
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, ("categories", Right $ categoryMap >>> categoryList)
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]
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renderChain ["index.html", "templates/default.html"] index
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-- Render all posts.
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mapM_ (renderChainWith postManipulation
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["templates/post.html"
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,"templates/default.html"
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]) renderablePosts
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mapM_ (renderChain ["templates/post.html"
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,"templates/default.html"
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]) renderablePosts
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-- Render rss feed
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let rss = createListing "rss.xml" "templates/rssitem.xml" (take 3 renderablePosts) []
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renderChain ["templates/rss.xml"] rss
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renderRss myFeedConfiguration $
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map (>>> copyValue "body" "description") (take 3 renderablePosts)
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where postManipulation :: ContextManipulation
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postManipulation = renderDate "date" "%B %e, %Y" "Date unknown"
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where postManipulation = renderDate "date" "%B %e, %Y" "Date unknown"
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>>> renderCategoryLink
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renderCategoryLink = changeValue "category" (\c -> link c $ categoryToUrl c)
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categoryToUrl category = "$root/categories/" ++ removeSpaces category ++ ".html"
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categoryList :: TagMap -> String
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categoryList = uncurry categoryListItem <=< toList
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categoryList = arr $ uncurry categoryListItem <=< toList
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categoryListItem category posts = "<li>" ++ link category (categoryToUrl category)
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++ " - " ++ show (length posts) ++ " items.</li>"
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renderPostList url title posts = do
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let list = createListingWith postManipulation url "templates/postitem.html" posts [("title", title)]
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let list = createListing url ["templates/postitem.html"] posts [("title", Left title)]
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renderChain ["posts.html", "templates/default.html"] list
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myFeedConfiguration = FeedConfiguration
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{ feedUrl = "rss.xml"
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, feedTitle = "SimpleBlog RSS feed."
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, feedDescription = "A simple demo of an RSS feed created with Hakyll."
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, feedAuthorName = "Jasper Van der Jeugt"
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}
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@ -1,5 +1,5 @@
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<h1>$title</h1>
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by <em>$author</em> on <strong>$date</strong>
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<div>Tagged as: $tags.</div>
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<div>Posted in: $category.</div>
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$body
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@ -1,9 +0,0 @@
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<?xml version="1.0" ?>
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<rss version="2.0">
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<channel>
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<title>The SimpleBlog</title>
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<link>http://example.com</link>
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<description>Simple blog in hakyll</description>
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$items
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</channel>
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</rss>
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@ -1,5 +0,0 @@
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<item>
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<title>$title</title>
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<link>http://example.com/$url</link>
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<description>$title by $author</description>
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</item>
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