2014-02-18 21:38:23 +00:00
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{- git-annex command
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-
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- Copyright 2014 Joey Hess <joey@kitenet.net>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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module Command.View where
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import Common.Annex
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import Command
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import qualified Git
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import qualified Git.Command
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import qualified Git.Ref
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import qualified Git.Branch
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import Types.View
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import Annex.View
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import Logs.View
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2014-10-14 18:20:10 +00:00
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cmd :: [Command]
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cmd = [notBareRepo $ notDirect $
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2014-02-19 18:55:34 +00:00
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command "view" paramView seek SectionMetaData "enter a view branch"]
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2014-02-18 21:38:23 +00:00
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seek :: CommandSeek
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seek = withWords start
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start :: [String] -> CommandStart
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start [] = error "Specify metadata to include in view"
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start params = do
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showStart "view" ""
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view <- mkView params
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go view =<< currentView
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where
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go view Nothing = next $ perform view
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go view (Just v)
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| v == view = stop
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2014-03-02 19:46:58 +00:00
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| otherwise = error "Already in a view. Use the vfilter and vadd commands to further refine this view."
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2014-02-18 21:38:23 +00:00
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perform :: View -> CommandPerform
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perform view = do
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2014-02-19 00:01:56 +00:00
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showSideAction "searching"
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2014-02-19 00:57:14 +00:00
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next $ checkoutViewBranch view applyView
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2014-02-18 21:38:23 +00:00
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paramView :: String
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2014-10-21 17:00:05 +00:00
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paramView = paramRepeating "FIELD=VALUE"
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2014-02-18 21:38:23 +00:00
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mkView :: [String] -> Annex View
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2014-03-02 20:00:56 +00:00
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mkView params = go =<< inRepo Git.Branch.current
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2014-02-18 21:38:23 +00:00
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where
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2014-03-02 20:00:56 +00:00
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go Nothing = error "not on any branch!"
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go (Just b) = return $ fst $ refineView (View b []) $
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map parseViewParam $ reverse params
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2014-02-18 21:38:23 +00:00
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2014-02-19 00:57:14 +00:00
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checkoutViewBranch :: View -> (View -> Annex Git.Branch) -> CommandCleanup
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checkoutViewBranch view mkbranch = do
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oldcwd <- liftIO getCurrentDirectory
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{- Change to top of repository before creating view branch. -}
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liftIO . setCurrentDirectory =<< fromRepo Git.repoPath
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branch <- mkbranch view
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2014-02-19 01:57:21 +00:00
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showOutput
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2014-02-18 21:38:23 +00:00
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ok <- inRepo $ Git.Command.runBool
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[ Param "checkout"
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2014-02-19 05:09:17 +00:00
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, Param (Git.fromRef $ Git.Ref.base branch)
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2014-02-18 21:38:23 +00:00
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]
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when ok $ do
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setView view
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{- A git repo can easily have empty directories in it,
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- and this pollutes the view, so remove them. -}
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2014-02-19 00:57:14 +00:00
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liftIO $ removeemptydirs "."
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unlessM (liftIO $ doesDirectoryExist oldcwd) $ do
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top <- fromRepo Git.repoPath
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2014-02-18 21:38:23 +00:00
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showLongNote (cwdmissing top)
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return ok
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where
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removeemptydirs top = mapM_ (tryIO . removeDirectory)
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=<< dirTreeRecursiveSkipping (".git" `isSuffixOf`) top
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cwdmissing top = unlines
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[ "This view does not include the subdirectory you are currently in."
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, "Perhaps you should: cd " ++ top
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]
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