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|
-- | Module providing the main hakyll function and command-line argument parsing
--
module Hakyll.Main
( hakyll
, hakyllWith
) where
import Control.Concurrent (forkIO)
import Control.Monad (when)
import System.Environment (getProgName, getArgs)
import System.Directory (doesDirectoryExist, removeDirectoryRecursive)
import Hakyll.Core.Configuration
import Hakyll.Core.Run
import Hakyll.Core.Rules
import Hakyll.Web.Preview.INotify
import Hakyll.Web.Preview.Server
-- | This usualy is the function with which the user runs the hakyll compiler
--
hakyll :: Rules -> IO ()
hakyll = hakyllWith defaultHakyllConfiguration
-- | A variant of 'hakyll' which allows the user to specify a custom
-- configuration
--
hakyllWith :: HakyllConfiguration -> Rules -> IO ()
hakyllWith configuration rules = do
args <- getArgs
case args of
["build"] -> build configuration rules
["clean"] -> clean configuration
["help"] -> help
["preview"] -> preview configuration rules 8000
["preview", p] -> preview configuration rules (read p)
["rebuild"] -> rebuild configuration rules
["server"] -> server configuration 8000
["server", p] -> server configuration (read p)
_ -> help
-- | Build the site
--
build :: HakyllConfiguration -> Rules -> IO ()
build = run
-- | Remove the output directories
--
clean :: HakyllConfiguration -> IO ()
clean configuration = do
remove $ destinationDirectory configuration
remove $ storeDirectory configuration
where
remove dir = do
putStrLn $ "Removing " ++ dir ++ "..."
exists <- doesDirectoryExist dir
when exists $ removeDirectoryRecursive dir
-- | Show usage information.
--
help :: IO ()
help = do
name <- getProgName
mapM_ putStrLn
[ "ABOUT"
, ""
, "This is a Hakyll site generator program. You should always"
, "run it from the project root directory."
, ""
, "USAGE"
, ""
, name ++ " build Generate the site"
, name ++ " clean Clean up and remove cache"
, name ++ " help Show this message"
, name ++ " preview [port] Run a server and autocompile"
, name ++ " rebuild Clean up and build again"
, name ++ " server [port] Run a local test server"
]
-- | Preview the site
--
preview :: HakyllConfiguration -> Rules -> Int -> IO ()
preview configuration rules port = do
-- Fork a thread polling for changes
_ <- forkIO $ previewPoll configuration "." $ build configuration rules
-- Run the server in the main thread
server configuration port
-- | Rebuild the site
--
rebuild :: HakyllConfiguration -> Rules -> IO ()
rebuild configuration rules = do
clean configuration
build configuration rules
-- | Start a server
--
server :: HakyllConfiguration -> Int -> IO ()
server configuration port = do
let destination = destinationDirectory configuration
staticServer destination preServeHook port
where
preServeHook _ = return ()
|
