git-annex/Locations.hs
2010-10-13 00:42:46 -04:00

33 lines
983 B
Haskell

{- git-annex file locations
-}
module Locations (
gitStateDir,
stateLoc,
keyFile,
annexLocation
) where
import Data.String.Utils
import Types
import GitRepo
{- Long-term, cross-repo state is stored in files inside the .git-annex
- directory, in the git repository's working tree. -}
stateLoc = ".git-annex"
gitStateDir :: GitRepo -> FilePath
gitStateDir repo = (gitWorkTree repo) ++ "/" ++ stateLoc ++ "/"
{- Converts a key into a filename fragment.
- Just escape "/" in the key name, to keep a flat
- tree of files and avoid issues with files ending with "/" etc. -}
keyFile :: Key -> FilePath
keyFile key = replace "/" "&s" $ replace "&" "&a" key
{- An annexed file's content is stored in
- .git/annex/<backend>/<key> ; this allows deriving the key and backend
- by looking at the symlink to it. -}
annexLocation :: State -> Backend -> Key -> FilePath
annexLocation state backend key =
gitDir (repo state) ++ "/annex/" ++ (name backend) ++
"/" ++ (keyFile key)