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{- git-annex command
-
- Copyright 2014 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.VAdd where
import Common.Annex
import Command
import Types.View
import Annex.View
import Logs.View
import Command.View (paramView, parseViewParam, checkoutViewBranch)
def :: [Command]
def = [notBareRepo $ notDirect $
command "vadd" paramView seek SectionUtility "refine current view"]
seek :: CommandSeek
seek = withWords start
start :: [String] -> CommandStart
start params = do
showStart "vadd" ""
go =<< currentView
where
go Nothing = error "Not in a view."
go (Just view) = do
let (view', change) = calc view Unchanged (reverse params)
case change of
Unchanged -> do
showNote "unchanged"
next $ next $ return True
Widening -> error "Widening view to match more files is not currently supported."
Narrowing -> next $ perform view'
calc v c [] = (v, c)
calc v c (p:ps) =
let (v', c') = uncurry (refineView v) (parseViewParam p)
in calc v' (max c c') ps
perform :: View -> CommandPerform
perform view = do
branch <- narrowView view
next $ checkoutViewBranch view branch
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