add visible size and time to worm keys
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1 changed files with 8 additions and 4 deletions
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@ -24,6 +24,9 @@ backend = Backend.File.backend {
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-- while also allowing a file to be moved around while retaining the
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-- while also allowing a file to be moved around while retaining the
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-- same key.
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-- same key.
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--
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--
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-- The file size and modification time are also included in the key,
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-- unhashed. This could be used as a sanity check.
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--
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-- The basename of the filename is also included in the key, so it's clear
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-- The basename of the filename is also included in the key, so it's clear
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-- what the original filename was when a user sees the value.
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-- what the original filename was when a user sees the value.
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keyValue :: FilePath -> Annex (Maybe Key)
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keyValue :: FilePath -> Annex (Maybe Key)
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@ -31,9 +34,10 @@ keyValue file = do
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stat <- liftIO $ getFileStatus file
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stat <- liftIO $ getFileStatus file
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return $ Just $ Key ((name backend), key stat)
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return $ Just $ Key ((name backend), key stat)
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where
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where
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key stat = (checksum $ uniqueid stat) ++ sep ++ base
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key stat = (checksum $ uniqueid stat) ++ sep ++
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uniqueid stat ++ sep ++ base
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checksum s = show $ sha1 $ B.pack s
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checksum s = show $ sha1 $ B.pack s
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uniqueid stat = (show $ fileSize stat) ++ sep ++
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uniqueid stat = (show $ modificationTime stat) ++ sep ++
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(show $ modificationTime stat)
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(show $ fileSize stat)
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base = takeFileName file
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base = takeFileName file
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sep = ":"
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sep = ":"
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