7f992ef59c
Remaining things needing converted are in the assistant, and Annex.Ssh. Every other remaining call to createDirectoryIfMissing True has been audited and is not relevant. The ones in Build/ of course don't get included in the program. Others included eg, Remote.Tahoe and Config.Files which both write to dotfiles under the home directory.
108 lines
3.2 KiB
Haskell
108 lines
3.2 KiB
Haskell
{- git-annex command
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-
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- Copyright 2010-2015 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU AGPL version 3 or higher.
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-}
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{-# LANGUAGE CPP #-}
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module Command.Fix where
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import Command
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import Config
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import qualified Annex
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import Annex.ReplaceFile
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import Annex.Content
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import Annex.Perms
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import qualified Annex.Queue
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import qualified Database.Keys
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import qualified Utility.RawFilePath as R
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#if ! defined(mingw32_HOST_OS)
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import Utility.Touch
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import System.Posix.Files
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#endif
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cmd :: Command
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cmd = noCommit $ withGlobalOptions [annexedMatchingOptions] $
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command "fix" SectionMaintenance
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"fix up links to annexed content"
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paramPaths (withParams seek)
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seek :: CmdParams -> CommandSeek
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seek ps = unlessM crippledFileSystem $ do
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withFilesInGit
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(commandAction . (whenAnnexed $ start FixAll))
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=<< workTreeItems ps
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data FixWhat = FixSymlinks | FixAll
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start :: FixWhat -> RawFilePath -> Key -> CommandStart
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start fixwhat file key = do
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currlink <- liftIO $ catchMaybeIO $ R.readSymbolicLink file
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wantlink <- calcRepo $ gitAnnexLink (fromRawFilePath file) key
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case currlink of
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Just l
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| l /= toRawFilePath wantlink -> fixby $
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fixSymlink (fromRawFilePath file) wantlink
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| otherwise -> stop
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Nothing -> case fixwhat of
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FixAll -> fixthin
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FixSymlinks -> stop
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where
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fixby = starting "fix" (mkActionItem (key, file))
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fixthin = do
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obj <- calcRepo (gitAnnexLocation key)
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stopUnless (isUnmodified key file <&&> isUnmodified key obj) $ do
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thin <- annexThin <$> Annex.getGitConfig
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fs <- liftIO $ catchMaybeIO $ R.getFileStatus file
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os <- liftIO $ catchMaybeIO $ R.getFileStatus obj
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case (linkCount <$> fs, linkCount <$> os, thin) of
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(Just 1, Just 1, True) ->
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fixby $ makeHardLink file key
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(Just n, Just n', False) | n > 1 && n == n' ->
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fixby $ breakHardLink file key obj
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_ -> stop
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breakHardLink :: RawFilePath -> Key -> RawFilePath -> CommandPerform
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breakHardLink file key obj = do
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replaceWorkTreeFile (fromRawFilePath file) $ \tmp -> do
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mode <- liftIO $ catchMaybeIO $ fileMode <$> R.getFileStatus file
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let obj' = fromRawFilePath obj
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unlessM (checkedCopyFile key obj' tmp mode) $
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error "unable to break hard link"
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thawContent tmp
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modifyContent obj' $ freezeContent obj'
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Database.Keys.storeInodeCaches key [file]
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next $ return True
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makeHardLink :: RawFilePath -> Key -> CommandPerform
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makeHardLink file key = do
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replaceWorkTreeFile (fromRawFilePath file) $ \tmp -> do
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mode <- liftIO $ catchMaybeIO $ fileMode <$> R.getFileStatus file
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linkFromAnnex key tmp mode >>= \case
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LinkAnnexFailed -> error "unable to make hard link"
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_ -> noop
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next $ return True
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fixSymlink :: FilePath -> FilePath -> CommandPerform
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fixSymlink file link = do
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liftIO $ do
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#if ! defined(mingw32_HOST_OS)
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-- preserve mtime of symlink
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mtime <- catchMaybeIO $ modificationTimeHiRes
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<$> getSymbolicLinkStatus file
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#endif
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createWorkTreeDirectory (parentDir file)
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removeFile file
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createSymbolicLink link file
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#if ! defined(mingw32_HOST_OS)
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maybe noop (\t -> touch file t False) mtime
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#endif
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next $ cleanupSymlink file
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cleanupSymlink :: FilePath -> CommandCleanup
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cleanupSymlink file = do
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Annex.Queue.addCommand "add" [Param "--force", Param "--"] [file]
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return True
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