blob: 955749e93db141c02c5527dbfcfd872a44ec2c96 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
{- git-annex command
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Lock where
import Control.Monad.State (liftIO)
import System.Directory
import System.Posix.Files
import Types
import Command
import Messages
import qualified Annex
import qualified GitRepo as Git
{- Undo unlock -}
start :: SubCmdStartString
start file = do
locked <- isLocked file
if locked
then return Nothing
else do
showStart "lock" file
return $ Just $ perform file
perform :: FilePath -> SubCmdPerform
perform file = do
liftIO $ removeFile file
g <- Annex.gitRepo
-- first reset the file to drop any changes checked into the index
liftIO $ Git.run g ["reset", "-q", "--", file]
-- checkout the symlink
liftIO $ Git.run g ["checkout", "--", file]
return $ Just $ return True -- no cleanup needed
{- Checks if a file is unlocked for edit.
-
- But, without the symlink to the annex, cannot tell for sure if the
- file was annexed before. So, check if git thinks the file's type has
- changed (from a symlink to a regular file). -}
isLocked :: FilePath -> Annex Bool
isLocked file = do
g <- Annex.gitRepo
typechanged <- liftIO $ Git.typeChangedFiles g file
s <- liftIO $ getSymbolicLinkStatus file
return $ (not $ elem file typechanged) || isSymbolicLink s
|