blob: f6ae28442f88ecff273e844de07685c9e835746b (
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
|
{- currently checked out branch
-
- Copyright 2018 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module Annex.CurrentBranch where
import Annex.Common
import Types.AdjustedBranch
import Annex.AdjustedBranch.Name
import qualified Annex
import qualified Git
import qualified Git.Branch
type CurrBranch = (Maybe Git.Branch, Maybe Adjustment)
{- Gets the currently checked out branch.
- When on an adjusted branch, gets the original branch, and the adjustment.
-
- Cached for speed.
-
- Until a commit is made in a new repository, no branch is checked out.
- Since git-annex may make the first commit, this does not cache
- the absence of a branch.
-}
getCurrentBranch :: Annex CurrBranch
getCurrentBranch = maybe cache return
=<< Annex.getState Annex.cachedcurrentbranch
where
cache = inRepo Git.Branch.current >>= \case
Just b -> do
let v = case adjustedToOriginal b of
Nothing -> (Just b, Nothing)
Just (adj, origbranch) ->
(Just origbranch, Just adj)
Annex.changeState $ \s ->
s { Annex.cachedcurrentbranch = Just v }
return v
Nothing -> return (Nothing, Nothing)
|
