git-annex/Annex/FileMatcher.hs
Joey Hess b6d46c212e git-annex (5.20140402) unstable; urgency=medium
* unannex, uninit: Avoid committing after every file is unannexed,
    for massive speedup.
  * --notify-finish switch will cause desktop notifications after each
    file upload/download/drop completes
    (using the dbus Desktop Notifications Specification)
  * --notify-start switch will show desktop notifications when each
    file upload/download starts.
  * webapp: Automatically install Nautilus integration scripts
    to get and drop files.
  * tahoe: Pass -d parameter before subcommand; putting it after
    the subcommand no longer works with tahoe-lafs version 1.10.
    (Thanks, Alberto Berti)
  * forget --drop-dead: Avoid removing the dead remote from the trust.log,
    so that if git remotes for it still exist anywhere, git annex info
    will still know it's dead and not show it.
  * git-annex-shell: Make configlist automatically initialize
    a remote git repository, as long as a git-annex branch has
    been pushed to it, to simplify setup of remote git repositories,
    including via gitolite.
  * add --include-dotfiles: New option, perhaps useful for backups.
  * Version 5.20140227 broke creation of glacier repositories,
    not including the datacenter and vault in their configuration.
    This bug is fixed, but glacier repositories set up with the broken
    version of git-annex need to have the datacenter and vault set
    in order to be usable. This can be done using git annex enableremote
    to add the missing settings. For details, see
    http://git-annex.branchable.com/bugs/problems_with_glacier/
  * Added required content configuration.
  * assistant: Improve ssh authorized keys line generated in local pairing
    or for a remote ssh server to set environment variables in an
    alternative way that works with the non-POSIX fish shell, as well
    as POSIX shells.

# imported from the archive
2014-04-02 21:42:53 +01:00

116 lines
3.9 KiB
Haskell

{- git-annex file matching
-
- Copyright 2012-2014 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Annex.FileMatcher where
import qualified Data.Map as M
import Common.Annex
import Limit
import Utility.Matcher
import Types.Group
import Logs.Group
import Logs.Remote
import Annex.UUID
import qualified Annex
import Types.FileMatcher
import Git.FilePath
import Types.Remote (RemoteConfig)
import Data.Either
import qualified Data.Set as S
checkFileMatcher :: (FileMatcher Annex) -> FilePath -> Annex Bool
checkFileMatcher matcher file = checkMatcher matcher Nothing (Just file) S.empty True
checkMatcher :: (FileMatcher Annex) -> Maybe Key -> AssociatedFile -> AssumeNotPresent -> Bool -> Annex Bool
checkMatcher matcher mkey afile notpresent def
| isEmpty matcher = return def
| otherwise = case (mkey, afile) of
(_, Just file) -> go =<< fileMatchInfo file
(Just key, _) -> go (MatchingKey key)
_ -> return def
where
go mi = matchMrun matcher $ \a -> a notpresent mi
fileMatchInfo :: FilePath -> Annex MatchInfo
fileMatchInfo file = do
matchfile <- getTopFilePath <$> inRepo (toTopFilePath file)
return $ MatchingFile FileInfo
{ matchFile = matchfile
, relFile = file
}
matchAll :: FileMatcher Annex
matchAll = generate []
parsedToMatcher :: [Either String (Token (MatchFiles Annex))] -> Either String (FileMatcher Annex)
parsedToMatcher parsed = case partitionEithers parsed of
([], vs) -> Right $ generate vs
(es, _) -> Left $ unwords $ map ("Parse failure: " ++) es
exprParser :: FileMatcher Annex -> FileMatcher Annex -> GroupMap -> M.Map UUID RemoteConfig -> Maybe UUID -> String -> [Either String (Token (MatchFiles Annex))]
exprParser matchstandard matchgroupwanted groupmap configmap mu expr =
map parse $ tokenizeMatcher expr
where
parse = parseToken
matchstandard
matchgroupwanted
(limitPresent mu)
(limitInDir preferreddir)
groupmap
preferreddir = fromMaybe "public" $
M.lookup "preferreddir" =<< (`M.lookup` configmap) =<< mu
parseToken :: FileMatcher Annex -> FileMatcher Annex -> MkLimit Annex -> MkLimit Annex -> GroupMap -> String -> Either String (Token (MatchFiles Annex))
parseToken matchstandard matchgroupwanted checkpresent checkpreferreddir groupmap t
| t `elem` tokens = Right $ token t
| t == "standard" = call matchstandard
| t == "groupwanted" = call matchgroupwanted
| t == "present" = use checkpresent
| t == "inpreferreddir" = use checkpreferreddir
| t == "unused" = Right $ Operation limitUnused
| otherwise = maybe (Left $ "near " ++ show t) use $ M.lookup k $
M.fromList
[ ("include", limitInclude)
, ("exclude", limitExclude)
, ("copies", limitCopies)
, ("lackingcopies", limitLackingCopies False)
, ("approxlackingcopies", limitLackingCopies True)
, ("inbackend", limitInBackend)
, ("largerthan", limitSize (>))
, ("smallerthan", limitSize (<))
, ("metadata", limitMetaData)
, ("inallgroup", limitInAllGroup groupmap)
]
where
(k, v) = separate (== '=') t
use a = Operation <$> a v
call sub = Right $ Operation $ \notpresent mi ->
matchMrun sub $ \a -> a notpresent mi
{- This is really dumb tokenization; there's no support for quoted values.
- Open and close parens are always treated as standalone tokens;
- otherwise tokens must be separated by whitespace. -}
tokenizeMatcher :: String -> [String]
tokenizeMatcher = filter (not . null ) . concatMap splitparens . words
where
splitparens = segmentDelim (`elem` "()")
{- Generates a matcher for files large enough (or meeting other criteria)
- to be added to the annex, rather than directly to git. -}
largeFilesMatcher :: Annex (FileMatcher Annex)
largeFilesMatcher = go =<< annexLargeFiles <$> Annex.getGitConfig
where
go Nothing = return matchAll
go (Just expr) = do
gm <- groupMap
rc <- readRemoteLog
u <- getUUID
either badexpr return $
parsedToMatcher $ exprParser matchAll matchAll gm rc (Just u) expr
badexpr e = error $ "bad annex.largefiles configuration: " ++ e