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