git-annex/Command/FromKey.hs
Joey Hess f1b0a4b404 Use lower case hash directories for storing files on crippled filesystems, same as is already done for bare repositories.
* since this is a crippled filesystem anyway, git-annex doesn't use
  symlinks on it
* so there's no reason to use the mixed case hash directories that we're
  stuck using to avoid breaking everyone's symlinks to the content
* so we can do what is already done for all bare repos, and make non-bare
  repos on crippled filesystems use the all-lower case hash directories
* which are, happily, all 3 letters long, so they cannot conflict with
  mixed case hash directories
* so I was able to 100% fix this and even resuming `git annex add` in the
  test case will recover and it will all just work.
2013-04-04 15:46:33 -04:00

44 lines
1.1 KiB
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.FromKey where
import Common.Annex
import Command
import qualified Annex.Queue
import Annex.Content
import Types.Key
def :: [Command]
def = [notDirect $ notBareRepo $
command "fromkey" (paramPair paramKey paramPath) seek
SectionPlumbing "adds a file using a specific key"]
seek :: [CommandSeek]
seek = [withWords start]
start :: [String] -> CommandStart
start (keyname:file:[]) = do
let key = fromMaybe (error "bad key") $ file2key keyname
inbackend <- inAnnex key
unless inbackend $ error $
"key ("++ keyname ++") is not present in backend"
showStart "fromkey" file
next $ perform key file
start _ = error "specify a key and a dest file"
perform :: Key -> FilePath -> CommandPerform
perform key file = do
link <- inRepo $ gitAnnexLink file key
liftIO $ createDirectoryIfMissing True (parentDir file)
liftIO $ createSymbolicLink link file
next $ cleanup file
cleanup :: FilePath -> CommandCleanup
cleanup file = do
Annex.Queue.addCommand "add" [Param "--"] [file]
return True