blob: 947af8cef5bb781bce4ab1785f26b4da7c57083c (
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
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
{- git-annex repository versioning
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Version where
import Control.Monad.State (liftIO)
import Control.Monad (unless)
import System.Directory
import Types
import qualified Annex
import qualified GitRepo as Git
import Locations
import Config
type Version = String
defaultVersion :: Version
defaultVersion = "2"
supportedVersions :: [Version]
supportedVersions = [defaultVersion]
upgradableVersions :: [Version]
upgradableVersions = ["0", "1"]
versionField :: String
versionField = "annex.version"
getVersion :: Annex Version
getVersion = do
g <- Annex.gitRepo
let v = Git.configGet g versionField ""
if not $ null v
then return v
else do
-- version 0 was not recorded in .git/config;
-- such a repo should have an gitAnnexDir but no
-- gitAnnexObjectDir.
--
-- version 1 may not be recorded if the user
-- forgot to init. Such a repo should have a
-- gitAnnexObjectDir already.
d <- liftIO $ doesDirectoryExist $ gitAnnexDir g
o <- liftIO $ doesDirectoryExist $ gitAnnexObjectDir g
case (d, o) of
(True, False) -> return "0"
(True, True) -> return "1"
_ -> do
setVersion
return defaultVersion
setVersion :: Annex ()
setVersion = setConfig versionField defaultVersion
checkVersion :: Annex ()
checkVersion = do
v <- getVersion
unless (v `elem` supportedVersions) $ do
error $ "Repository version " ++ v ++
" is not supported. " ++
msg v
where
msg v
| v `elem` upgradableVersions = "Upgrade this repository: git-annex upgrade"
| otherwise = "Upgrade git-annex."
|
