42 lines
944 B
Haskell
42 lines
944 B
Haskell
{- git-annex command
|
|
-
|
|
- Copyright 2014 Joey Hess <id@joeyh.name>
|
|
-
|
|
- Licensed under the GNU GPL version 3 or higher.
|
|
-}
|
|
|
|
module Command.VCycle where
|
|
|
|
import Common.Annex
|
|
import Command
|
|
import Annex.View
|
|
import Types.View
|
|
import Logs.View
|
|
import Command.View (checkoutViewBranch)
|
|
|
|
cmd :: Command
|
|
cmd = notBareRepo $ notDirect $
|
|
command "vcycle" SectionMetaData
|
|
"switch view to next layout"
|
|
paramNothing (withParams seek)
|
|
|
|
seek :: CmdParams -> CommandSeek
|
|
seek = withNothing start
|
|
|
|
start ::CommandStart
|
|
start = go =<< currentView
|
|
where
|
|
go Nothing = error "Not in a view."
|
|
go (Just v) = do
|
|
showStart "vcycle" ""
|
|
let v' = v { viewComponents = vcycle [] (viewComponents v) }
|
|
if v == v'
|
|
then do
|
|
showNote "unchanged"
|
|
next $ next $ return True
|
|
else next $ next $ checkoutViewBranch v' narrowView
|
|
|
|
vcycle rest (c:cs)
|
|
| viewVisible c = rest ++ cs ++ [c]
|
|
| otherwise = vcycle (c:rest) cs
|
|
vcycle rest c = rest ++ c
|