60 lines
1.7 KiB
Haskell
60 lines
1.7 KiB
Haskell
{- git-annex command
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-
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- Copyright 2010-2016 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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module Command.Unlock where
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import Command
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import Annex.Content
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import Annex.Perms
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import Annex.Link
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import Annex.ReplaceFile
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import Git.FilePath
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import qualified Database.Keys
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cmd :: Command
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cmd = mkcmd "unlock" "unlock files for modification"
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editcmd :: Command
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editcmd = mkcmd "edit" "same as unlock"
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mkcmd :: String -> String -> Command
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mkcmd n d = withGlobalOptions [jsonOptions, annexedMatchingOptions] $
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command n SectionCommon d paramPaths (withParams seek)
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seek :: CmdParams -> CommandSeek
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seek ps = withFilesInGit (commandAction . whenAnnexed start) =<< workTreeItems ps
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{- Before v6, the unlock subcommand replaces the symlink with a copy of
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- the file's content. In v6 and above, it converts the file from a symlink
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- to a pointer. -}
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start :: FilePath -> Key -> CommandStart
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start file key = ifM (isJust <$> isAnnexLink file)
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( starting "unlock" (mkActionItem (key, AssociatedFile (Just file))) $
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perform file key
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, stop
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)
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perform :: FilePath -> Key -> CommandPerform
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perform dest key = do
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destmode <- liftIO $ catchMaybeIO $ fileMode <$> getFileStatus dest
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replaceFile dest $ \tmp ->
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ifM (inAnnex key)
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( do
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r <- linkFromAnnex key tmp destmode
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case r of
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LinkAnnexOk -> return ()
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LinkAnnexNoop -> return ()
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LinkAnnexFailed -> error "unlock failed"
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, liftIO $ writePointerFile tmp key destmode
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)
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next $ cleanup dest key destmode
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cleanup :: FilePath -> Key -> Maybe FileMode -> CommandCleanup
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cleanup dest key destmode = do
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stagePointerFile dest destmode =<< hashPointerFile key
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Database.Keys.addAssociatedFile key =<< inRepo (toTopFilePath dest)
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return True
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