summaryrefslogtreecommitdiff
path: root/GitRepo.hs
diff options
context:
space:
mode:
Diffstat (limited to 'GitRepo.hs')
-rw-r--r--GitRepo.hs27
1 files changed, 26 insertions, 1 deletions
diff --git a/GitRepo.hs b/GitRepo.hs
index 2e7fff22e..21c683bd2 100644
--- a/GitRepo.hs
+++ b/GitRepo.hs
@@ -8,6 +8,12 @@ import System.Path
import Data.String.Utils
import Utility
+{- Long-term state is stored in files inside the .git-annex directory
+ - in the git repository. -}
+stateLoc = ".git-annex"
+gitStateDir :: String -> String
+gitStateDir repo = repo ++ "/" ++ stateLoc ++ "/"
+
{- Given a relative or absolute filename, calculates the name to use
- relative to a git repository directory (which must be absolute).
- This is the same form displayed and used by git. -}
@@ -23,9 +29,28 @@ gitRelative repo file = drop (length absrepo) absfile
Just f -> f
Nothing -> error $ file ++ " is not located inside git repository " ++ absrepo
+{- Sets up the current git repo for git-annex. May be called repeatedly. -}
+gitPrep :: IO ()
+gitPrep = do
+ repo <- repoTop
+ bare <- isBareRepo repo
+ -- configure git to use union merge driver on state files
+ let attributes = repo ++ "/.gitattributes"
+ let attrLine = stateLoc ++ "/* merge=union"
+ exists <- doesFileExist attributes
+ if (not bare)
+ then if (not exists)
+ then writeFile attributes $ attrLine ++ "\n"
+ else do
+ content <- readFile attributes
+ if (all (/= attrLine) (lines content))
+ then appendFile attributes $ attrLine ++ "\n"
+ else return ()
+ else return ()
{- Returns the path to the current repository's .git directory.
- - (For a bare repository, that is the root of the repository.) -}
+ - (For a bare repository, that is the root of the repository.)
+ - TODO: support GIT_DIR -}
gitDir :: IO String
gitDir = do
repo <- repoTop