blob: 63590d5e96b6690ba40a606839e5f7696e38cbb9 (
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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
{- git-annex recent views log
-
- The most recently accessed view comes first.
-
- This file is stored locally in .git/annex/, not in the git-annex branch.
-
- Copyright 2014 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Logs.View (
currentView,
setView,
removeView,
recentViews,
branchView,
prop_branchView_legal,
) where
import Common.Annex
import Types.View
import Types.MetaData
import qualified Git
import qualified Git.Branch
import qualified Git.Ref
import Git.Types
import Utility.Tmp
import qualified Data.Set as S
import Data.Char
setView :: View -> Annex ()
setView v = do
old <- take 99 . filter (/= v) <$> recentViews
writeViews (v : old)
writeViews :: [View] -> Annex ()
writeViews l = do
f <- fromRepo gitAnnexViewLog
liftIO $ viaTmp writeFile f $ unlines $ map show l
removeView :: View -> Annex ()
removeView v = writeViews =<< filter (/= v) <$> recentViews
recentViews :: Annex [View]
recentViews = do
f <- fromRepo gitAnnexViewLog
liftIO $ mapMaybe readish . lines <$> catchDefaultIO [] (readFile f)
{- Gets the currently checked out view, if there is one. -}
currentView :: Annex (Maybe View)
currentView = go =<< inRepo Git.Branch.current
where
go (Just b) | branchViewPrefix `isPrefixOf` fromRef b =
headMaybe . filter (\v -> branchView v == b) <$> recentViews
go _ = return Nothing
branchViewPrefix :: String
branchViewPrefix = "refs/heads/views"
{- Generates a git branch name for a View.
-
- There is no guarantee that each view gets a unique branch name,
- but the branch name is used to express the view as well as possible.
-}
branchView :: View -> Git.Branch
branchView view
| null name = Git.Ref branchViewPrefix
| otherwise = Git.Ref $ branchViewPrefix ++ "/" ++ name
where
name = intercalate ";" $ map branchcomp (viewComponents view)
branchcomp c
| viewVisible c = branchcomp' c
| otherwise = "(" ++ branchcomp' c ++ ")"
branchcomp' (ViewComponent metafield viewfilter _) =concat
[ forcelegal (fromMetaField metafield)
, "="
, branchvals viewfilter
]
branchvals (FilterValues set) = intercalate "," $
map (forcelegal . fromMetaValue) $ S.toList set
branchvals (FilterGlob glob) = forcelegal glob
forcelegal s
| Git.Ref.legal True s = s
| otherwise = map (\c -> if isAlphaNum c then c else '_') s
prop_branchView_legal :: View -> Bool
prop_branchView_legal = Git.Ref.legal False . fromRef . branchView
|
