git-annex/Seek.hs
Joey Hess a2f241d503 fix LsFiles.typeChanged paths
Passing absolute paths to Command.Add used to work, but after recent
changes doesn't. All LsFiles should use relative paths anyway, so fix it
there.
2012-02-14 00:22:42 -04:00

105 lines
3.6 KiB
Haskell

{- git-annex command seeking
-
- These functions find appropriate files or other things based on
- the values a user passes to a command, and prepare actions operating
- on them.
-
- Copyright 2010-2011 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Seek where
import Common.Annex
import Types.Command
import Types.Key
import qualified Annex
import qualified Git
import qualified Git.LsFiles as LsFiles
import qualified Limit
import qualified Option
seekHelper :: ([FilePath] -> Git.Repo -> IO [FilePath]) -> [FilePath] -> Annex [FilePath]
seekHelper a params = inRepo $ \g -> runPreserveOrder (`a` g) params
withFilesInGit :: (FilePath -> CommandStart) -> CommandSeek
withFilesInGit a params = prepFiltered a $ seekHelper LsFiles.inRepo params
withFilesNotInGit :: (FilePath -> CommandStart) -> CommandSeek
withFilesNotInGit a params = do
{- dotfiles are not acted on unless explicitly listed -}
files <- filter (not . dotfile) <$> seek ps
dotfiles <- if null dotps then return [] else seek dotps
prepFiltered a $ return $ preserveOrder params (files++dotfiles)
where
(dotps, ps) = partition dotfile params
seek l = do
force <- Annex.getState Annex.force
g <- gitRepo
liftIO $ (\p -> LsFiles.notInRepo force p g) l
withWords :: ([String] -> CommandStart) -> CommandSeek
withWords a params = return [a params]
withStrings :: (String -> CommandStart) -> CommandSeek
withStrings a params = return $ map a params
withFilesToBeCommitted :: (String -> CommandStart) -> CommandSeek
withFilesToBeCommitted a params = prepFiltered a $
seekHelper LsFiles.stagedNotDeleted params
withFilesUnlocked :: (FilePath -> CommandStart) -> CommandSeek
withFilesUnlocked = withFilesUnlocked' LsFiles.typeChanged
withFilesUnlockedToBeCommitted :: (FilePath -> CommandStart) -> CommandSeek
withFilesUnlockedToBeCommitted = withFilesUnlocked' LsFiles.typeChangedStaged
withFilesUnlocked' :: ([FilePath] -> Git.Repo -> IO [FilePath]) -> (FilePath -> CommandStart) -> CommandSeek
withFilesUnlocked' typechanged a params = do
-- unlocked files have changed type from a symlink to a regular file
typechangedfiles <- seekHelper typechanged params
let unlockedfiles = liftIO $ filterM notSymlink typechangedfiles
prepFiltered a unlockedfiles
withKeys :: (Key -> CommandStart) -> CommandSeek
withKeys a params = return $ map (a . parse) params
where
parse p = fromMaybe (error "bad key") $ readKey p
withValue :: Annex v -> (v -> CommandSeek) -> CommandSeek
withValue v a params = do
r <- v
a r params
{- Modifies a seek action using the value of a field option, which is fed into
- a conversion function, and then is passed into the seek action.
- This ensures that the conversion function only runs once.
-}
withField :: Option -> (Maybe String -> Annex a) -> (a -> CommandSeek) -> CommandSeek
withField option converter = withValue $
converter =<< Annex.getField (Option.name option)
withFlag :: Option -> (Bool -> CommandSeek) -> CommandSeek
withFlag option = withValue $ Annex.getFlag (Option.name option)
withNothing :: CommandStart -> CommandSeek
withNothing a [] = return [a]
withNothing _ _ = error "This command takes no parameters."
prepFiltered :: (FilePath -> CommandStart) -> Annex [FilePath] -> Annex [CommandStart]
prepFiltered a = prepFilteredGen a id
prepFilteredGen :: (b -> CommandStart) -> (b -> FilePath) -> Annex [b] -> Annex [CommandStart]
prepFilteredGen a d fs = do
matcher <- Limit.getMatcher
map (proc matcher) <$> fs
where
proc matcher v = do
let f = d v
ok <- matcher f
if ok then a v else return Nothing
notSymlink :: FilePath -> IO Bool
notSymlink f = liftIO $ not . isSymbolicLink <$> getSymbolicLinkStatus f