module Rakka.Storage.Impl
( getPage'
+ , putPage'
+ , deletePage'
, startIndexManager
)
where
import Control.Concurrent
import Control.Concurrent.STM
-import Control.Exception
import Control.Monad
import Data.Maybe
import Data.Set (Set)
import qualified Data.Set as S
+import Network.HTTP.Lucu
import Network.URI
import Rakka.Page
import Rakka.Storage.DefaultPage
import System.FilePath
import System.IO
import System.Log.Logger
-import System.Posix.Files
-import System.Posix.Types
-import System.Posix.IO
import Text.HyperEstraier hiding (WriteLock)
p -> return p
+putPage' :: Repository -> Maybe String -> Page -> IO StatusCode
+putPage' = putPageIntoRepository
+
+
+deletePage' :: Repository -> Maybe String -> PageName -> IO StatusCode
+deletePage' = deletePageFromRepository
+
+
findAllPages :: Repository -> RevNum -> IO (Set PageName)
findAllPages _ 0 = findAllDefaultPages
-findAllPages repos rev
- = findAllDefaultPages -- FIXME
+findAllPages repos rev = do reposPages <- findAllPagesInRevision repos rev
+ defaultPages <- findAllDefaultPages
+ return (reposPages `S.union` defaultPages)
findChangedPages :: Repository -> RevNum -> RevNum -> IO (Set PageName)
findChangedPages repos 0 newRev = findAllPages repos newRev
findChangedPages repos oldRev newRev
- = findAllPages repos newRev -- FIXME
+ = mapM (findChangedPagesAtRevision repos) [oldRev + 1 .. newRev]
+ >>=
+ return . S.unions
getCurrentRevNum :: Repository -> IO RevNum
updateIndexRev :: FilePath -> (RevNum -> IO RevNum) -> IO ()
-updateIndexRev revFile f = bracket acquireLock releaseLock update
+updateIndexRev revFile f = withFile revFile ReadWriteMode update
where
- acquireLock :: IO Fd
- acquireLock
- = do fd <- openFd revFile ReadWrite (Just stdFileMode) defaultFileFlags
- waitToSetLock fd (WriteLock, AbsoluteSeek, 0, 0)
- return fd
-
- releaseLock :: Fd -> IO ()
- releaseLock fd
- = setLock fd (Unlock, AbsoluteSeek, 0, 0)
-
- update :: Fd -> IO ()
- update fd
- = do fdSeek fd AbsoluteSeek 0
- size <- return . fromIntegral . fileSize =<< getFdStatus fd
- (revStr, gotSize) <- fdRead fd size
- when (size /= gotSize) $ fail ("read " ++ show gotSize ++
- " bytes but expected " ++ show size ++ " bytes")
-
- let rev = case revStr of
- "" -> 0
- _ -> read revStr
-
- rev' <- f rev
-
- let revStr' = show rev' ++ "\n"
- size' = fromIntegral $ length revStr'
-
- fdSeek fd AbsoluteSeek 0
- setFdSize fd 0
- wroteSize <- fdWrite fd revStr'
- when (size' /= wroteSize) $ fail ("wrote " ++ show wroteSize ++
- " bytes but expected " ++ show size' ++ " bytes")
+ update :: Handle -> IO ()
+ update h = do eof <- hIsEOF h
+ rev <- if eof then
+ return 0
+ else
+ hGetLine h >>= return . read
+ rev' <- f rev
+ hSeek h AbsoluteSeek 0
+ hSetFileSize h 0
+ hPutStrLn h (show rev')