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|
{- Web url logs.
-
- Copyright 2011 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Logs.Web (
URLString,
webUUID,
getUrls,
setUrlPresent,
setUrlMissing,
) where
import Common.Annex
import Logs.Presence
import Logs.Location
import Types.Key
type URLString = String
-- Dummy uuid for the whole web. Do not alter.
webUUID :: UUID
webUUID = UUID "00000000-0000-0000-0000-000000000001"
urlLog :: Key -> FilePath
urlLog key = hashDirLower key </> keyFile key ++ ".log.web"
{- Used to store the urls elsewhere. -}
oldurlLogs :: Key -> [FilePath]
oldurlLogs key =
[ "remote/web" </> hashDirLower key </> key2file key ++ ".log"
, "remote/web" </> hashDirLower key </> keyFile key ++ ".log"
]
{- Gets all urls that a key might be available from. -}
getUrls :: Key -> Annex [URLString]
getUrls key = go $ urlLog key : oldurlLogs key
where
go [] = return []
go (l:ls) = do
us <- currentLog l
if null us
then go ls
else return us
setUrlPresent :: Key -> URLString -> Annex ()
setUrlPresent key url = do
us <- getUrls key
unless (url `elem` us) $ do
addLog (urlLog key) =<< logNow InfoPresent url
-- update location log to indicate that the web has the key
logChange key webUUID InfoPresent
setUrlMissing :: Key -> URLString -> Annex ()
setUrlMissing key url = addLog (urlLog key) =<< logNow InfoMissing url
|
