X-Git-Url: http://git.cielonegro.org/gitweb.cgi?a=blobdiff_plain;f=Rakka%2FStorage%2FImpl.hs;h=79108927435d271904e66172aa2b8944ae4f0c76;hb=f57c5c5ae6c95e68b11400718e7ce5de4ea1317a;hp=515667a9b40ddca019859b3b63fdcdbd6a6a8d76;hpb=b4a3d2cf3854b10d923cb4c546bf1fe32b021a68;p=Rakka.git diff --git a/Rakka/Storage/Impl.hs b/Rakka/Storage/Impl.hs index 515667a..7910892 100644 --- a/Rakka/Storage/Impl.hs +++ b/Rakka/Storage/Impl.hs @@ -1,13 +1,14 @@ module Rakka.Storage.Impl ( getPage' , putPage' + , deletePage' + , getDirContents' , startIndexManager ) where import Control.Concurrent import Control.Concurrent.STM -import Control.Exception import Control.Monad import Data.Maybe import Data.Set (Set) @@ -25,9 +26,6 @@ import System.Directory 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) @@ -43,10 +41,14 @@ getPage' repos name rev p -> return p -putPage' :: Repository -> Page -> IO StatusCode +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 = do reposPages <- findAllPagesInRevision repos rev @@ -62,6 +64,13 @@ findChangedPages repos oldRev newRev return . S.unions +getDirContents' :: Repository -> PageName -> Maybe RevNum -> IO [PageName] +getDirContents' repos name rev + = do reposPages <- getDirContentsInRevision repos name rev + defaultPages <- getDefaultDirContents name + return $ S.toList (reposPages `S.union` defaultPages) + + getCurrentRevNum :: Repository -> IO RevNum getCurrentRevNum repos = getRepositoryFS repos >>= getYoungestRev @@ -122,8 +131,11 @@ openIndex indexDir revFile $ removeFile revFile Right index <- openDatabase indexDir (Writer [Create []]) + addAttrIndex index "@type" StrIndex addAttrIndex index "@uri" SeqIndex addAttrIndex index "rakka:revision" SeqIndex + addAttrIndex index "rakka:isTheme" StrIndex + addAttrIndex index "rakka:isFeed" StrIndex noticeM logger ("Created an H.E. index on " ++ indexDir) return index @@ -178,41 +190,19 @@ updateIndex index repos mkDraft rev name Just page -> do draft <- mkDraft page putDocument index draft [CleaningPut] - infoM logger ("Indexed page " ++ name ++ " of revision " ++ show (entityRevision page)) + infoM logger ("Indexed page " ++ name ++ " of revision " ++ show (pageRevision page)) 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')