git-annex/Command/Uninit.hs
Joey Hess c91929f693 add whenM and unlessM
Just more golfing.. I am pretty sure something in a library somewhere can
do this, but I have been unable to find it.
2011-05-17 03:13:11 -04:00

60 lines
1.5 KiB
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Uninit where
import Control.Monad.State (liftIO)
import System.Directory
import Command
import Messages
import Types
import Utility
import qualified GitRepo as Git
import qualified Annex
import qualified Command.Unannex
import qualified Command.Init
command :: [Command]
command = [repoCommand "uninit" paramPath seek
"de-initialize git-annex and clean out repository"]
seek :: [CommandSeek]
seek = [withFilesInGit Command.Unannex.start, withNothing start]
start :: CommandStartNothing
start = do
showStart "uninit" ""
next perform
perform :: CommandPerform
perform = do
g <- Annex.gitRepo
gitPreCommitHookUnWrite g
liftIO $ gitAttributesUnWrite g
next $ return True
gitPreCommitHookUnWrite :: Git.Repo -> Annex ()
gitPreCommitHookUnWrite repo = do
let hook = Command.Init.preCommitHook repo
whenM (liftIO $ doesFileExist hook) $ do
c <- liftIO $ readFile hook
if c == Command.Init.preCommitScript
then liftIO $ removeFile hook
else warning $ "pre-commit hook (" ++ hook ++
") contents modified; not deleting." ++
" Edit it to remove call to git annex."
gitAttributesUnWrite :: Git.Repo -> IO ()
gitAttributesUnWrite repo = do
let attributes = Git.attributes repo
whenM (doesFileExist attributes) $ do
c <- readFileStrict attributes
safeWriteFile attributes $ unlines $
filter (\l -> not $ l `elem` Command.Init.attrLines) $ lines c