0a4479b8ec
ghc 8 added backtraces on uncaught errors. This is great, but git-annex was using error in many places for a error message targeted at the user, in some known problem case. A backtrace only confuses such a message, so omit it. Notably, commands like git annex drop that failed due to eg, numcopies, used to use error, so had a backtrace. This commit was sponsored by Ethan Aubin.
41 lines
925 B
Haskell
41 lines
925 B
Haskell
{- git-annex command
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-
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- Copyright 2014 Joey Hess <id@joeyh.name>
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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.VCycle where
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import Command
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import Annex.View
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import Types.View
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import Logs.View
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import Command.View (checkoutViewBranch)
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cmd :: Command
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cmd = notBareRepo $ notDirect $
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command "vcycle" SectionMetaData
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"switch view to next layout"
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paramNothing (withParams seek)
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seek :: CmdParams -> CommandSeek
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seek = withNothing start
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start ::CommandStart
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start = go =<< currentView
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where
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go Nothing = giveup "Not in a view."
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go (Just v) = do
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showStart "vcycle" ""
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let v' = v { viewComponents = vcycle [] (viewComponents v) }
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if v == v'
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then do
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showNote "unchanged"
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next $ next $ return True
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else next $ next $ checkoutViewBranch v' narrowView
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vcycle rest (c:cs)
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| viewVisible c = rest ++ cs ++ [c]
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| otherwise = vcycle (c:rest) cs
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vcycle rest c = rest ++ c
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