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.
59 lines
1.6 KiB
Haskell
59 lines
1.6 KiB
Haskell
{- git-annex upgrade support
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-
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- Copyright 2010, 2013 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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{-# LANGUAGE CPP #-}
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module Upgrade where
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import Annex.Common
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import Annex.Version
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#ifndef mingw32_HOST_OS
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import qualified Upgrade.V0
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import qualified Upgrade.V1
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#endif
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import qualified Upgrade.V2
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import qualified Upgrade.V3
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import qualified Upgrade.V4
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import qualified Upgrade.V5
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checkUpgrade :: Version -> Annex ()
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checkUpgrade = maybe noop giveup <=< needsUpgrade
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needsUpgrade :: Version -> Annex (Maybe String)
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needsUpgrade v
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| v `elem` supportedVersions = ok
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| v `elem` autoUpgradeableVersions = ifM (upgrade True defaultVersion)
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( ok
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, err "Automatic upgrade failed!"
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)
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| v `elem` upgradableVersions = err "Upgrade this repository: git-annex upgrade"
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| otherwise = err "Upgrade git-annex."
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where
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err msg = return $ Just $ "Repository version " ++ v ++
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" is not supported. " ++ msg
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ok = return Nothing
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upgrade :: Bool -> Version -> Annex Bool
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upgrade automatic destversion = do
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upgraded <- go =<< getVersion
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when upgraded $
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setVersion destversion
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return upgraded
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where
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go (Just v) | v >= destversion = return True
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#ifndef mingw32_HOST_OS
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go (Just "0") = Upgrade.V0.upgrade
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go (Just "1") = Upgrade.V1.upgrade
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#else
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go (Just "0") = giveup "upgrade from v0 on Windows not supported"
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go (Just "1") = giveup "upgrade from v1 on Windows not supported"
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#endif
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go (Just "2") = Upgrade.V2.upgrade
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go (Just "3") = Upgrade.V3.upgrade automatic
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go (Just "4") = Upgrade.V4.upgrade automatic
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go (Just "5") = Upgrade.V5.upgrade automatic
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go _ = return True
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