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|
{- git-annex command
-
- Copyright 2010 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
{-# LANGUAGE BangPatterns #-}
module Command.FromKey where
import Common.Annex
import Command
import qualified Annex.Queue
import Annex.Content
import Types.Key
import qualified Annex
cmd :: [Command]
cmd = [notDirect $ notBareRepo $
command "fromkey" (paramPair paramKey paramPath) seek
SectionPlumbing "adds a file using a specific key"]
seek :: CommandSeek
seek ps = do
force <- Annex.getState Annex.force
withWords (start force) ps
start :: Bool -> [String] -> CommandStart
start force (keyname:file:[]) = do
let key = fromMaybe (error "bad key") $ file2key keyname
unless force $ do
inbackend <- inAnnex key
unless inbackend $ error $
"key ("++ keyname ++") is not present in backend (use --force to override this sanity check)"
showStart "fromkey" file
next $ perform key file
start _ [] = do
showStart "fromkey" "stdin"
next massAdd
start _ _ = error "specify a key and a dest file"
massAdd :: CommandPerform
massAdd = go True =<< map words . lines <$> liftIO getContents
where
go status [] = next $ return status
go status ([keyname,f]:rest) = do
let key = fromMaybe (error $ "bad key " ++ keyname) $ file2key keyname
ok <- perform' key f
let !status' = status && ok
go status' rest
go _ _ = error "Expected pairs of key and file on stdin, but got something else."
perform :: Key -> FilePath -> CommandPerform
perform key file = do
ok <- perform' key file
next $ return ok
perform' :: Key -> FilePath -> Annex Bool
perform' key file = do
link <- calcRepo $ gitAnnexLink file key
liftIO $ createDirectoryIfMissing True (parentDir file)
liftIO $ createSymbolicLink link file
Annex.Queue.addCommand "add" [Param "--"] [file]
return True
|
