50 lines
1.2 KiB
Haskell
50 lines
1.2 KiB
Haskell
{- git-annex command
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-
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- Copyright 2010 Joey Hess <joey@kitenet.net>
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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.Unlock where
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import Common.Annex
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import Command
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import Annex.Content
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import Utility.CopyFile
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def :: [Command]
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def =
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[ c "unlock" "unlock files for modification"
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, c "edit" "same as unlock"
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]
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where
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c n = notDirect . command n paramPaths seek SectionCommon
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seek :: [CommandSeek]
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seek = [withFilesInGit $ whenAnnexed start]
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{- The unlock subcommand replaces the symlink with a copy of the file's
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- content. -}
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start :: FilePath -> (Key, Backend) -> CommandStart
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start file (key, _) = do
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showStart "unlock" file
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next $ perform file key
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perform :: FilePath -> Key -> CommandPerform
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perform dest key = do
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unlessM (inAnnex key) $ error "content not present"
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unlessM (checkDiskSpace Nothing key 0) $ error "cannot unlock"
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src <- inRepo $ gitAnnexLocation key
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tmpdest <- fromRepo $ gitAnnexTmpLocation key
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liftIO $ createDirectoryIfMissing True (parentDir tmpdest)
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showAction "copying"
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ifM (liftIO $ copyFileExternal src tmpdest)
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( do
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liftIO $ do
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removeFile dest
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moveFile tmpdest dest
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thawContent dest
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next $ return True
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, error "copy failed!"
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)
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