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{- git-annex command
-
- Copyright 2014 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.VPop where
import Command
import qualified Git
import qualified Git.Command
import qualified Git.Ref
import Types.View
import Logs.View
import Command.View (checkoutViewBranch)
cmd :: Command
cmd = notBareRepo $ notDirect $
command "vpop" SectionMetaData "switch back to previous view"
paramNumber (withParams seek)
seek :: CmdParams -> CommandSeek
seek = withWords start
start :: [String] -> CommandStart
start ps = go =<< currentView
where
go Nothing = giveup "Not in a view."
go (Just v) = do
showStart "vpop" (show num)
removeView v
(oldvs, vs) <- splitAt (num - 1) . filter (sameparentbranch v)
<$> recentViews
mapM_ removeView oldvs
case vs of
(oldv:_) -> next $ next $ do
showOutput
checkoutViewBranch oldv (return . branchView)
_ -> next $ next $ do
showOutput
inRepo $ Git.Command.runBool
[ Param "checkout"
, Param $ Git.fromRef $ Git.Ref.base $
viewParentBranch v
]
sameparentbranch a b = viewParentBranch a == viewParentBranch b
num = fromMaybe 1 $ readish =<< headMaybe ps
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