git-annex/Types/KeySource.hs
Joey Hess 7ce30b534f add: Improved detection of files that are modified while being added.
In indirect mode, now checks the inode cache to detect changes to a file.
Note that a file can still be changed if a process has it open for write,
after landing in the annex.

In direct mode, some checking of the inode cache was done before, but
from a much later point, so fewer modifications could be detected. Now it's
as good as indirect mode.

On crippled filesystems, no lock down is done before starting to add a
file, so checking the inode cache is the only protection we have.
2013-02-14 16:54:36 -04:00

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Haskell

{- KeySource data type
-
- Copyright 2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Types.KeySource where
import Utility.InodeCache
{- When content is in the process of being added to the annex,
- and a Key generated from it, this data type is used.
-
- The contentLocation may be different from the filename
- associated with the key. For example, the add command
- may temporarily hard link the content into a lockdown directory
- for checking. The migrate command uses the content
- of a different Key.
-
- The inodeCache can be used to detect some types of modifications to
- files that may be made while they're in the process of being added.
-}
data KeySource = KeySource
{ keyFilename :: FilePath
, contentLocation :: FilePath
, inodeCache :: Maybe InodeCache
}
deriving (Show)