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{- git-annex core functions -}
module Core where
import Maybe
import System.IO
import System.Directory
import Control.Monad.State (liftIO)
import System.Path
import Data.String.Utils
import Types
import Locations
import LocationLog
import UUID
import qualified GitRepo as Git
import qualified Annex
import Utility
{- Sets up a git repo for git-annex. -}
startup :: [Flag] -> Annex ()
startup flags = do
mapM (\f -> Annex.flagChange f True) flags
g <- Annex.gitRepo
liftIO $ gitAttributes g
prepUUID
{- When git-annex is done, it runs this. -}
shutdown :: Annex ()
shutdown = do
g <- Annex.gitRepo
liftIO $ Git.run g ["add", gitStateDir g]
-- clean up any files left in the temp directory
let tmp = annexTmpLocation g
exists <- liftIO $ doesDirectoryExist tmp
if (exists)
then liftIO $ removeDirectoryRecursive $ tmp
else return ()
{- configure git to use union merge driver on state files, if it is not
- already -}
gitAttributes :: Git.Repo -> IO ()
gitAttributes repo = do
exists <- doesFileExist attributes
if (not exists)
then do
writeFile attributes $ attrLine ++ "\n"
commit
else do
content <- readFile attributes
if (all (/= attrLine) (lines content))
then do
appendFile attributes $ attrLine ++ "\n"
commit
else return ()
where
attrLine = stateLoc ++ "*.log merge=union"
attributes = Git.attributes repo
commit = do
Git.run repo ["add", attributes]
Git.run repo ["commit", "-m", "git-annex setup",
attributes]
{- Checks if a given key is currently present in the annexLocation -}
inAnnex :: Key -> Annex Bool
inAnnex key = do
g <- Annex.gitRepo
liftIO $ doesFileExist $ annexLocation g key
{- Calculates the relative path to use to link a file to a key. -}
calcGitLink :: FilePath -> Key -> Annex FilePath
calcGitLink file key = do
g <- Annex.gitRepo
cwd <- liftIO $ getCurrentDirectory
let absfile = case (absNormPath cwd file) of
Just f -> f
Nothing -> error $ "unable to normalize " ++ file
return $ (relPathDirToDir (parentDir absfile) (Git.workTree g)) ++
annexLocationRelative g key
{- Updates the LocationLog when a key's presence changes. -}
logStatus :: Key -> LogStatus -> Annex ()
logStatus key status = do
g <- Annex.gitRepo
u <- getUUID g
liftIO $ logChange g key u status
{- Output logging -}
showStart :: String -> String -> Annex ()
showStart command file = do
liftIO $ putStr $ command ++ " " ++ file
liftIO $ hFlush stdout
showNote :: String -> Annex ()
showNote s = do
liftIO $ putStr $ " (" ++ s ++ ")"
liftIO $ hFlush stdout
showLongNote :: String -> Annex ()
showLongNote s = do
liftIO $ putStr $ "\n" ++ (indent s)
where
indent s = join "\n" $ map (\l -> " " ++ l) $ lines s
showEndOk :: Annex ()
showEndOk = do
liftIO $ putStrLn " ok"
showEndFail :: Annex ()
showEndFail = do
liftIO $ putStrLn "\nfailed"
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