e9a33088e8
May be unlocked files pulled from elsewhere, but converting from direct mode will add more. So, do the scan for them first, since it empties anything currently in the database.
114 lines
3.6 KiB
Haskell
114 lines
3.6 KiB
Haskell
{- git-annex v5 -> v6 upgrade support
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-
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- Copyright 2015 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 Upgrade.V5 where
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import Common.Annex
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import qualified Annex
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import Config
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import Annex.InodeSentinal
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import Annex.Link
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import Annex.Direct
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import Annex.Content
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import Annex.CatFile
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import qualified Database.Keys
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import qualified Annex.Content.Direct as Direct
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import qualified Git
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import qualified Git.LsFiles
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import qualified Git.Branch
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import Git.FileMode
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import Git.Config
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import Utility.InodeCache
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upgrade :: Bool -> Annex Bool
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upgrade automatic = do
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unless automatic $
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showAction "v5 to v6"
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Database.Keys.scanAssociatedFiles
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whenM isDirect $ do
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{- Direct mode makes the same tradeoff of using less disk
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- space, with less preservation of old versions of files
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- as does annex.thin. -}
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setConfig (annexConfig "thin") (boolConfig True)
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Annex.changeGitConfig $ \c -> c { annexThin = True }
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{- Since upgrade from direct mode changes how files
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- are represented in git, commit any changes in the
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- work tree first. -}
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whenM stageDirect $ do
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unless automatic $
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showAction "committing first"
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upgradeDirectCommit automatic
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"commit before upgrade to annex.version 6"
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setDirect False
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upgradeDirectWorkTree
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removeDirectCruft
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showLongNote "Upgraded repository out of direct mode."
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showLongNote "Changes have been staged for all annexed files in this repository; you should run `git commit` to commit these changes."
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showLongNote "Any other clones of this repository that use direct mode need to be upgraded now, too."
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configureSmudgeFilter
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-- Inode sentinal file was only used in direct mode and when
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-- locking down files as they were added. In v6, it's used more
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-- extensively, so make sure it exists, since old repos that didn't
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-- use direct mode may not have created it.
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unlessM (isDirect) $
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createInodeSentinalFile True
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return True
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upgradeDirectCommit :: Bool -> String -> Annex ()
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upgradeDirectCommit automatic msg =
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void $ inRepo $ Git.Branch.commitCommand commitmode
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[ Param "-m"
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, Param msg
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]
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where
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commitmode = if automatic then Git.Branch.AutomaticCommit else Git.Branch.ManualCommit
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{- Walk work tree from top and convert all annex symlinks to pointer files,
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- staging them in the index, and updating the work tree files with
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- either the content of the object, or the pointer file content. -}
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upgradeDirectWorkTree :: Annex ()
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upgradeDirectWorkTree = do
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top <- fromRepo Git.repoPath
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(l, clean) <- inRepo $ Git.LsFiles.stagedDetails [top]
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forM_ l go
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void $ liftIO clean
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where
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go (f, Just _sha, Just mode) | isSymLink mode = do
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-- Cannot use lookupFile here, as we're in between direct
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-- mode and v6.
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mk <- catKeyFile f
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case mk of
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Nothing -> noop
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Just k -> do
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ifM (isJust <$> getAnnexLinkTarget f)
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( writepointer f k
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, fromdirect f k
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)
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stagePointerFile f =<< hashPointerFile k
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Database.Keys.addAssociatedFile k f
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return ()
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go _ = noop
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fromdirect f k = do
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-- If linkToAnnex fails for some reason, the work tree file
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-- still has the content; the annex object file is just
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-- not populated with it. Since the work tree file
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-- is recorded as an associated file, things will still
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-- work that way, it's just not ideal.
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ic <- withTSDelta (liftIO . genInodeCache f)
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void $ linkToAnnex k f ic
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writepointer f k = liftIO $ do
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nukeFile f
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writeFile f (formatPointer k)
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{- Remove all direct mode bookkeeping files. -}
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removeDirectCruft :: Annex ()
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removeDirectCruft = mapM_ go =<< getKeysPresent InAnywhere
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where
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go k = do
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Direct.removeInodeCache k
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Direct.removeAssociatedFiles k
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