704 lines
23 KiB
Haskell
704 lines
23 KiB
Haskell
{- Standard git remotes.
|
|
-
|
|
- Copyright 2011-2015 Joey Hess <id@joeyh.name>
|
|
-
|
|
- Licensed under the GNU GPL version 3 or higher.
|
|
-}
|
|
|
|
{-# LANGUAGE CPP #-}
|
|
|
|
module Remote.Git (
|
|
remote,
|
|
configRead,
|
|
repoAvail,
|
|
) where
|
|
|
|
import Annex.Common
|
|
import Annex.Ssh
|
|
import Types.Remote
|
|
import Types.GitConfig
|
|
import qualified Git
|
|
import qualified Git.Config
|
|
import qualified Git.Construct
|
|
import qualified Git.Command
|
|
import qualified Git.GCrypt
|
|
import qualified Git.Types as Git
|
|
import qualified Annex
|
|
import Logs.Presence
|
|
import Annex.Transfer
|
|
import Annex.UUID
|
|
import qualified Annex.Content
|
|
import qualified Annex.BranchState
|
|
import qualified Annex.Branch
|
|
import qualified Annex.Url as Url
|
|
import Utility.Tmp
|
|
import Config
|
|
import Config.Cost
|
|
import Annex.Init
|
|
import Annex.Version
|
|
import Types.CleanupActions
|
|
import qualified CmdLine.GitAnnexShell.Fields as Fields
|
|
import Logs.Location
|
|
import Utility.Metered
|
|
#ifndef mingw32_HOST_OS
|
|
import Utility.CopyFile
|
|
#endif
|
|
import Utility.Env
|
|
import Utility.Batch
|
|
import Remote.Helper.Git
|
|
import Remote.Helper.Messages
|
|
import qualified Remote.Helper.Ssh as Ssh
|
|
import qualified Remote.GCrypt
|
|
import Annex.Path
|
|
import Creds
|
|
import Annex.CatFile
|
|
import Messages.Progress
|
|
import Types.NumCopies
|
|
|
|
import Control.Concurrent
|
|
import Control.Concurrent.MSampleVar
|
|
import qualified Data.Map as M
|
|
import Network.URI
|
|
|
|
remote :: RemoteType
|
|
remote = RemoteType {
|
|
typename = "git",
|
|
enumerate = list,
|
|
generate = gen,
|
|
setup = gitSetup
|
|
}
|
|
|
|
list :: Bool -> Annex [Git.Repo]
|
|
list autoinit = do
|
|
c <- fromRepo Git.config
|
|
rs <- mapM (tweakurl c) =<< fromRepo Git.remotes
|
|
mapM (configRead autoinit) rs
|
|
where
|
|
annexurl n = "remote." ++ n ++ ".annexurl"
|
|
tweakurl c r = do
|
|
let n = fromJust $ Git.remoteName r
|
|
case M.lookup (annexurl n) c of
|
|
Nothing -> return r
|
|
Just url -> inRepo $ \g ->
|
|
Git.Construct.remoteNamed n $
|
|
Git.Construct.fromRemoteLocation url g
|
|
|
|
{- Git remotes are normally set up using standard git command, not
|
|
- git-annex initremote and enableremote.
|
|
-
|
|
- For initremote, the git remote must already be set up, and have a uuid.
|
|
- Initremote simply remembers its location.
|
|
-
|
|
- enableremote simply sets up a git remote using the stored location.
|
|
- No attempt is made to make the remote be accessible via ssh key setup,
|
|
- etc.
|
|
-}
|
|
gitSetup :: Maybe UUID -> Maybe CredPair -> RemoteConfig -> RemoteGitConfig -> Annex (RemoteConfig, UUID)
|
|
gitSetup Nothing _ c _ = do
|
|
let location = fromMaybe (error "Specify location=url") $
|
|
Url.parseURIRelaxed =<< M.lookup "location" c
|
|
g <- Annex.gitRepo
|
|
u <- case filter (\r -> Git.location r == Git.Url location) (Git.remotes g) of
|
|
[r] -> getRepoUUID r
|
|
[] -> error "could not find existing git remote with specified location"
|
|
_ -> error "found multiple git remotes with specified location"
|
|
return (c, u)
|
|
gitSetup (Just u) _ c _ = do
|
|
inRepo $ Git.Command.run
|
|
[ Param "remote"
|
|
, Param "add"
|
|
, Param $ fromMaybe (error "no name") (M.lookup "name" c)
|
|
, Param $ fromMaybe (error "no location") (M.lookup "location" c)
|
|
]
|
|
return (c, u)
|
|
|
|
{- It's assumed to be cheap to read the config of non-URL remotes, so this is
|
|
- done each time git-annex is run in a way that uses remotes.
|
|
-
|
|
- Conversely, the config of an URL remote is only read when there is no
|
|
- cached UUID value. -}
|
|
configRead :: Bool -> Git.Repo -> Annex Git.Repo
|
|
configRead autoinit r = do
|
|
gc <- Annex.getRemoteGitConfig r
|
|
u <- getRepoUUID r
|
|
case (repoCheap r, remoteAnnexIgnore gc, u) of
|
|
(_, True, _) -> return r
|
|
(True, _, _) -> tryGitConfigRead autoinit r
|
|
(False, _, NoUUID) -> tryGitConfigRead autoinit r
|
|
_ -> return r
|
|
|
|
gen :: Git.Repo -> UUID -> RemoteConfig -> RemoteGitConfig -> Annex (Maybe Remote)
|
|
gen r u c gc
|
|
| Git.GCrypt.isEncrypted r = Remote.GCrypt.chainGen r u c gc
|
|
| otherwise = go <$> remoteCost gc defcst
|
|
where
|
|
defcst = if repoCheap r then cheapRemoteCost else expensiveRemoteCost
|
|
go cst = Just new
|
|
where
|
|
new = Remote
|
|
{ uuid = u
|
|
, cost = cst
|
|
, name = Git.repoDescribe r
|
|
, storeKey = copyToRemote new
|
|
, retrieveKeyFile = copyFromRemote new
|
|
, retrieveKeyFileCheap = copyFromRemoteCheap new
|
|
, removeKey = dropKey new
|
|
, lockContent = Just (lockKey new)
|
|
, checkPresent = inAnnex new
|
|
, checkPresentCheap = repoCheap r
|
|
, whereisKey = Nothing
|
|
, remoteFsck = if Git.repoIsUrl r
|
|
then Nothing
|
|
else Just $ fsckOnRemote r
|
|
, repairRepo = if Git.repoIsUrl r
|
|
then Nothing
|
|
else Just $ repairRemote r
|
|
, config = c
|
|
, localpath = localpathCalc r
|
|
, repo = r
|
|
, gitconfig = gc
|
|
{ remoteGitConfig = Just $ extractGitConfig r }
|
|
, readonly = Git.repoIsHttp r
|
|
, availability = availabilityCalc r
|
|
, remotetype = remote
|
|
, mkUnavailable = unavailable r u c gc
|
|
, getInfo = gitRepoInfo new
|
|
, claimUrl = Nothing
|
|
, checkUrl = Nothing
|
|
}
|
|
|
|
unavailable :: Git.Repo -> UUID -> RemoteConfig -> RemoteGitConfig -> Annex (Maybe Remote)
|
|
unavailable r u c gc = gen r' u c gc
|
|
where
|
|
r' = case Git.location r of
|
|
Git.Local { Git.gitdir = d } ->
|
|
r { Git.location = Git.LocalUnknown d }
|
|
Git.Url url -> case uriAuthority url of
|
|
Just auth ->
|
|
let auth' = auth { uriRegName = "!dne!" }
|
|
in r { Git.location = Git.Url (url { uriAuthority = Just auth' })}
|
|
Nothing -> r { Git.location = Git.Unknown }
|
|
_ -> r -- already unavailable
|
|
|
|
{- Checks relatively inexpensively if a repository is available for use. -}
|
|
repoAvail :: Git.Repo -> Annex Bool
|
|
repoAvail r
|
|
| Git.repoIsHttp r = return True
|
|
| Git.GCrypt.isEncrypted r = do
|
|
g <- gitRepo
|
|
liftIO $ do
|
|
er <- Git.GCrypt.encryptedRemote g r
|
|
if Git.repoIsLocal er || Git.repoIsLocalUnknown er
|
|
then catchBoolIO $
|
|
void (Git.Config.read er) >> return True
|
|
else return True
|
|
| Git.repoIsUrl r = return True
|
|
| Git.repoIsLocalUnknown r = return False
|
|
| otherwise = liftIO $ isJust <$> catchMaybeIO (Git.Config.read r)
|
|
|
|
{- Tries to read the config for a specified remote, updates state, and
|
|
- returns the updated repo. -}
|
|
tryGitConfigRead :: Bool -> Git.Repo -> Annex Git.Repo
|
|
tryGitConfigRead autoinit r
|
|
| haveconfig r = return r -- already read
|
|
| Git.repoIsSsh r = store $ do
|
|
v <- Ssh.onRemote r (pipedconfig, return (Left $ error "configlist failed")) "configlist" [] configlistfields
|
|
case v of
|
|
Right r'
|
|
| haveconfig r' -> return r'
|
|
| otherwise -> configlist_failed
|
|
Left _ -> configlist_failed
|
|
| Git.repoIsHttp r = store geturlconfig
|
|
| Git.GCrypt.isEncrypted r = handlegcrypt =<< getConfigMaybe (remoteConfig r "uuid")
|
|
| Git.repoIsUrl r = return r
|
|
| otherwise = store $ liftIO $
|
|
readlocalannexconfig `catchNonAsync` (const $ return r)
|
|
where
|
|
haveconfig = not . M.null . Git.config
|
|
|
|
pipedconfig cmd params = do
|
|
v <- Git.Config.fromPipe r cmd params
|
|
case v of
|
|
Right (r', val) -> do
|
|
unless (isUUIDConfigured r' || null val) $ do
|
|
warningIO $ "Failed to get annex.uuid configuration of repository " ++ Git.repoDescribe r
|
|
warningIO $ "Instead, got: " ++ show val
|
|
warningIO $ "This is unexpected; please check the network transport!"
|
|
return $ Right r'
|
|
Left l -> return $ Left l
|
|
|
|
geturlconfig = do
|
|
uo <- Url.getUrlOptions
|
|
v <- liftIO $ withTmpFile "git-annex.tmp" $ \tmpfile h -> do
|
|
hClose h
|
|
let url = Git.repoLocation r ++ "/config"
|
|
ifM (Url.downloadQuiet url tmpfile uo)
|
|
( Just <$> pipedconfig "git" [Param "config", Param "--null", Param "--list", Param "--file", File tmpfile]
|
|
, return Nothing
|
|
)
|
|
case v of
|
|
Nothing -> do
|
|
warning $ "Failed to get annex.uuid configuration of repository " ++ Git.repoDescribe r
|
|
return r
|
|
Just (Left _) -> do
|
|
set_ignore "not usable by git-annex" False
|
|
return r
|
|
Just (Right r') -> do
|
|
-- Cache when http remote is not bare for
|
|
-- optimisation.
|
|
unless (Git.Config.isBare r') $
|
|
setremote setRemoteBare False
|
|
return r'
|
|
|
|
store = observe $ \r' -> do
|
|
g <- gitRepo
|
|
let l = Git.remotes g
|
|
let g' = g { Git.remotes = exchange l r' }
|
|
Annex.changeState $ \s -> s { Annex.repo = g' }
|
|
|
|
exchange [] _ = []
|
|
exchange (old:ls) new
|
|
| Git.remoteName old == Git.remoteName new =
|
|
new : exchange ls new
|
|
| otherwise =
|
|
old : exchange ls new
|
|
|
|
{- Is this remote just not available, or does
|
|
- it not have git-annex-shell?
|
|
- Find out by trying to fetch from the remote. -}
|
|
configlist_failed = case Git.remoteName r of
|
|
Nothing -> return r
|
|
Just n -> do
|
|
whenM (inRepo $ Git.Command.runBool [Param "fetch", Param "--quiet", Param n]) $ do
|
|
set_ignore "does not have git-annex installed" True
|
|
return r
|
|
|
|
set_ignore msg longmessage = do
|
|
case Git.remoteName r of
|
|
Nothing -> noop
|
|
Just n -> do
|
|
warning $ "Remote " ++ n ++ " " ++ msg ++ "; setting annex-ignore"
|
|
when longmessage $
|
|
warning $ "This could be a problem with the git-annex installation on the remote. Please make sure that git-annex-shell is available in PATH when you ssh into the remote. Once you have fixed the git-annex installation, run: git annex enableremote " ++ n
|
|
setremote setRemoteIgnore True
|
|
|
|
setremote setter v = case Git.remoteName r of
|
|
Nothing -> noop
|
|
Just _ -> setter r v
|
|
|
|
handlegcrypt Nothing = return r
|
|
handlegcrypt (Just _cacheduuid) = do
|
|
-- Generate UUID from the gcrypt-id
|
|
g <- gitRepo
|
|
case Git.GCrypt.remoteRepoId g (Git.remoteName r) of
|
|
Nothing -> return r
|
|
Just v -> store $ liftIO $ setUUID r $
|
|
genUUIDInNameSpace gCryptNameSpace v
|
|
|
|
{- The local repo may not yet be initialized, so try to initialize
|
|
- it if allowed. However, if that fails, still return the read
|
|
- git config. -}
|
|
readlocalannexconfig = do
|
|
s <- Annex.new r
|
|
Annex.eval s $ do
|
|
Annex.BranchState.disableUpdate
|
|
void $ tryNonAsync $ ensureInitialized
|
|
Annex.getState Annex.repo
|
|
|
|
configlistfields = if autoinit
|
|
then [(Fields.autoInit, "1")]
|
|
else []
|
|
|
|
{- Checks if a given remote has the content for a key in its annex. -}
|
|
inAnnex :: Remote -> Key -> Annex Bool
|
|
inAnnex rmt key
|
|
| Git.repoIsHttp r = checkhttp
|
|
| Git.repoIsUrl r = checkremote
|
|
| otherwise = checklocal
|
|
where
|
|
r = repo rmt
|
|
checkhttp = do
|
|
showChecking r
|
|
ifM (Url.withUrlOptions $ \uo -> anyM (\u -> Url.checkBoth u (keySize key) uo) (keyUrls rmt key))
|
|
( return True
|
|
, error "not found"
|
|
)
|
|
checkremote = Ssh.inAnnex r key
|
|
checklocal = guardUsable r (cantCheck r) $
|
|
maybe (cantCheck r) return
|
|
=<< onLocal rmt (Annex.Content.inAnnexSafe key)
|
|
|
|
keyUrls :: Remote -> Key -> [String]
|
|
keyUrls r key = map tourl locs'
|
|
where
|
|
tourl l = Git.repoLocation (repo r) ++ "/" ++ l
|
|
-- If the remote is known to not be bare, try the hash locations
|
|
-- used for non-bare repos first, as an optimisation.
|
|
locs
|
|
| remoteAnnexBare remoteconfig == Just False = reverse (annexLocations cfg key)
|
|
| otherwise = annexLocations cfg key
|
|
#ifndef mingw32_HOST_OS
|
|
locs' = locs
|
|
#else
|
|
locs' = map (replace "\\" "/") locs
|
|
#endif
|
|
remoteconfig = gitconfig r
|
|
cfg = fromJust $ remoteGitConfig remoteconfig
|
|
|
|
dropKey :: Remote -> Key -> Annex Bool
|
|
dropKey r key
|
|
| not $ Git.repoIsUrl (repo r) =
|
|
guardUsable (repo r) (return False) $
|
|
commitOnCleanup r $ onLocal r $ do
|
|
ensureInitialized
|
|
whenM (Annex.Content.inAnnex key) $ do
|
|
Annex.Content.lockContentForRemoval key
|
|
Annex.Content.removeAnnex
|
|
logStatus key InfoMissing
|
|
Annex.Content.saveState True
|
|
return True
|
|
| Git.repoIsHttp (repo r) = error "dropping from http remote not supported"
|
|
| otherwise = commitOnCleanup r $ Ssh.dropKey (repo r) key
|
|
|
|
lockKey :: Remote -> Key -> (VerifiedCopy -> Annex r) -> Annex r
|
|
lockKey r key callback
|
|
| not $ Git.repoIsUrl (repo r) =
|
|
guardUsable (repo r) failedlock $ do
|
|
inorigrepo <- Annex.makeRunner
|
|
-- Lock content from perspective of remote,
|
|
-- and then run the callback in the original
|
|
-- annex monad, not the remote's.
|
|
onLocal r $
|
|
Annex.Content.lockContentShared key $ \vc ->
|
|
ifM (Annex.Content.inAnnex key)
|
|
( liftIO $ inorigrepo $ callback vc
|
|
, failedlock
|
|
)
|
|
| Git.repoIsSsh (repo r) = do
|
|
showLocking r
|
|
Just (cmd, params) <- Ssh.git_annex_shell (repo r) "lockcontent"
|
|
[Param $ key2file key] []
|
|
(Just hin, Just hout, Nothing, p) <- liftIO $
|
|
withFile devNull WriteMode $ \nullh ->
|
|
createProcess $
|
|
(proc cmd (toCommand params))
|
|
{ std_in = CreatePipe
|
|
, std_out = CreatePipe
|
|
, std_err = UseHandle nullh
|
|
}
|
|
v <- liftIO $ tryIO $ hGetLine hout
|
|
let signaldone = void $ tryNonAsync $ liftIO $ mapM_ tryNonAsync
|
|
[ hPutStrLn hout ""
|
|
, hFlush hout
|
|
, hClose hin
|
|
, hClose hout
|
|
, void $ waitForProcess p
|
|
]
|
|
let checkexited = not . isJust <$> getProcessExitCode p
|
|
case v of
|
|
Left _exited -> do
|
|
showNote "lockcontent failed"
|
|
liftIO $ do
|
|
hClose hin
|
|
hClose hout
|
|
void $ waitForProcess p
|
|
failedlock
|
|
Right l
|
|
| l == Ssh.contentLockedMarker -> bracket_
|
|
noop
|
|
signaldone
|
|
(withVerifiedCopy LockedCopy r checkexited callback)
|
|
| otherwise -> do
|
|
showNote "lockcontent failed"
|
|
signaldone
|
|
failedlock
|
|
| otherwise = failedlock
|
|
where
|
|
failedlock = error "can't lock content"
|
|
|
|
{- Tries to copy a key's content from a remote's annex to a file. -}
|
|
copyFromRemote :: Remote -> Key -> AssociatedFile -> FilePath -> MeterUpdate -> Annex (Bool, Verification)
|
|
copyFromRemote r key file dest p
|
|
| Git.repoIsHttp (repo r) = unVerified $
|
|
Annex.Content.downloadUrl key p (keyUrls r key) dest
|
|
| otherwise = concurrentMetered (Just p) key $
|
|
copyFromRemote' r key file dest
|
|
|
|
copyFromRemote' :: Remote -> Key -> AssociatedFile -> FilePath -> MeterUpdate -> Annex (Bool, Verification)
|
|
copyFromRemote' r key file dest meterupdate
|
|
| not $ Git.repoIsUrl (repo r) = guardUsable (repo r) (unVerified (return False)) $ do
|
|
params <- Ssh.rsyncParams r Download
|
|
u <- getUUID
|
|
hardlink <- wantHardLink
|
|
-- run copy from perspective of remote
|
|
onLocal r $ do
|
|
ensureInitialized
|
|
v <- Annex.Content.prepSendAnnex key
|
|
case v of
|
|
Nothing -> return (False, UnVerified)
|
|
Just (object, checksuccess) -> do
|
|
copier <- mkCopier hardlink params
|
|
runTransfer (Transfer Download u key)
|
|
file noRetry
|
|
(\p -> copier object dest (combineMeterUpdate p meterupdate) checksuccess)
|
|
| Git.repoIsSsh (repo r) = unVerified $ feedprogressback $ \p -> do
|
|
Ssh.rsyncHelper (Just (combineMeterUpdate meterupdate p))
|
|
=<< Ssh.rsyncParamsRemote False r Download key dest file
|
|
| otherwise = error "copying from non-ssh, non-http remote not supported"
|
|
where
|
|
{- Feed local rsync's progress info back to the remote,
|
|
- by forking a feeder thread that runs
|
|
- git-annex-shell transferinfo at the same time
|
|
- git-annex-shell sendkey is running.
|
|
-
|
|
- To avoid extra password prompts, this is only done when ssh
|
|
- connection caching is supported.
|
|
- Note that it actually waits for rsync to indicate
|
|
- progress before starting transferinfo, in order
|
|
- to ensure ssh connection caching works and reuses
|
|
- the connection set up for the sendkey.
|
|
-
|
|
- Also note that older git-annex-shell does not support
|
|
- transferinfo, so stderr is dropped and failure ignored.
|
|
-}
|
|
feedprogressback a = ifM (isJust <$> sshCacheDir)
|
|
( feedprogressback' a
|
|
, a $ const noop
|
|
)
|
|
feedprogressback' a = do
|
|
u <- getUUID
|
|
let fields = (Fields.remoteUUID, fromUUID u)
|
|
: maybe [] (\f -> [(Fields.associatedFile, f)]) file
|
|
Just (cmd, params) <- Ssh.git_annex_shell (repo r) "transferinfo"
|
|
[Param $ key2file key] fields
|
|
v <- liftIO (newEmptySV :: IO (MSampleVar Integer))
|
|
pidv <- liftIO $ newEmptyMVar
|
|
tid <- liftIO $ forkIO $ void $ tryIO $ do
|
|
bytes <- readSV v
|
|
p <- createProcess $
|
|
(proc cmd (toCommand params))
|
|
{ std_in = CreatePipe
|
|
, std_err = CreatePipe
|
|
}
|
|
putMVar pidv (processHandle p)
|
|
hClose $ stderrHandle p
|
|
let h = stdinHandle p
|
|
let send b = do
|
|
hPrint h b
|
|
hFlush h
|
|
send bytes
|
|
forever $
|
|
send =<< readSV v
|
|
let feeder = \n -> do
|
|
meterupdate n
|
|
writeSV v (fromBytesProcessed n)
|
|
|
|
-- It can easily take 0.3 seconds to clean up after
|
|
-- the transferinfo, and all that's involved is shutting
|
|
-- down the process and associated thread cleanly. So,
|
|
-- do it in the background.
|
|
let cleanup = forkIO $ do
|
|
void $ tryIO $ killThread tid
|
|
void $ tryNonAsync $
|
|
maybe noop (void . waitForProcess)
|
|
=<< tryTakeMVar pidv
|
|
bracketIO noop (const cleanup) (const $ a feeder)
|
|
|
|
copyFromRemoteCheap :: Remote -> Key -> AssociatedFile -> FilePath -> Annex Bool
|
|
#ifndef mingw32_HOST_OS
|
|
copyFromRemoteCheap r key af file
|
|
| not $ Git.repoIsUrl (repo r) = guardUsable (repo r) (return False) $ liftIO $ do
|
|
loc <- gitAnnexLocation key (repo r) $
|
|
fromJust $ remoteGitConfig $ gitconfig r
|
|
ifM (doesFileExist loc)
|
|
( do
|
|
absloc <- absPath loc
|
|
catchBoolIO $ do
|
|
createSymbolicLink absloc file
|
|
return True
|
|
, return False
|
|
)
|
|
| Git.repoIsSsh (repo r) =
|
|
ifM (Annex.Content.preseedTmp key file)
|
|
( fst <$> copyFromRemote r key af file nullMeterUpdate
|
|
, return False
|
|
)
|
|
| otherwise = return False
|
|
#else
|
|
copyFromRemoteCheap _ _ _ _ = return False
|
|
#endif
|
|
|
|
{- Tries to copy a key's content to a remote's annex. -}
|
|
copyToRemote :: Remote -> Key -> AssociatedFile -> MeterUpdate -> Annex Bool
|
|
copyToRemote r key file meterupdate =
|
|
concurrentMetered (Just meterupdate) key $
|
|
copyToRemote' r key file
|
|
|
|
copyToRemote' :: Remote -> Key -> AssociatedFile -> MeterUpdate -> Annex Bool
|
|
copyToRemote' r key file meterupdate
|
|
| not $ Git.repoIsUrl (repo r) =
|
|
guardUsable (repo r) (return False) $ commitOnCleanup r $
|
|
copylocal =<< Annex.Content.prepSendAnnex key
|
|
| Git.repoIsSsh (repo r) = commitOnCleanup r $
|
|
Annex.Content.sendAnnex key noop $ \object -> do
|
|
-- This is too broad really, but recvkey normally
|
|
-- verifies content anyway, so avoid complicating
|
|
-- it with a local sendAnnex check and rollback.
|
|
unlocked <- isDirect <||> versionSupportsUnlockedPointers
|
|
Ssh.rsyncHelper (Just meterupdate)
|
|
=<< Ssh.rsyncParamsRemote unlocked r Upload key object file
|
|
| otherwise = error "copying to non-ssh repo not supported"
|
|
where
|
|
copylocal Nothing = return False
|
|
copylocal (Just (object, checksuccess)) = do
|
|
-- The checksuccess action is going to be run in
|
|
-- the remote's Annex, but it needs access to the local
|
|
-- Annex monad's state.
|
|
checksuccessio <- Annex.withCurrentState checksuccess
|
|
params <- Ssh.rsyncParams r Upload
|
|
u <- getUUID
|
|
hardlink <- wantHardLink
|
|
-- run copy from perspective of remote
|
|
onLocal r $ ifM (Annex.Content.inAnnex key)
|
|
( return True
|
|
, do
|
|
ensureInitialized
|
|
copier <- mkCopier hardlink params
|
|
let verify = Annex.Content.RemoteVerify r
|
|
runTransfer (Transfer Download u key) file noRetry $ \p ->
|
|
let p' = combineMeterUpdate meterupdate p
|
|
in Annex.Content.saveState True `after`
|
|
Annex.Content.getViaTmp verify key
|
|
(\dest -> copier object dest p' (liftIO checksuccessio))
|
|
)
|
|
|
|
fsckOnRemote :: Git.Repo -> [CommandParam] -> Annex (IO Bool)
|
|
fsckOnRemote r params
|
|
| Git.repoIsUrl r = do
|
|
s <- Ssh.git_annex_shell r "fsck" params []
|
|
return $ case s of
|
|
Nothing -> return False
|
|
Just (c, ps) -> batchCommand c ps
|
|
| otherwise = return $ do
|
|
program <- programPath
|
|
r' <- Git.Config.read r
|
|
environ <- getEnvironment
|
|
let environ' = addEntries
|
|
[ ("GIT_WORK_TREE", Git.repoPath r')
|
|
, ("GIT_DIR", Git.localGitDir r')
|
|
] environ
|
|
batchCommandEnv program (Param "fsck" : params) (Just environ')
|
|
|
|
{- The passed repair action is run in the Annex monad of the remote. -}
|
|
repairRemote :: Git.Repo -> Annex Bool -> Annex (IO Bool)
|
|
repairRemote r a = return $ do
|
|
s <- Annex.new r
|
|
Annex.eval s $ do
|
|
Annex.BranchState.disableUpdate
|
|
ensureInitialized
|
|
a
|
|
|
|
{- Runs an action from the perspective of a local remote.
|
|
-
|
|
- The AnnexState is cached for speed and to avoid resource leaks.
|
|
- However, catFileStop is called to avoid git-cat-file processes hanging
|
|
- around on removable media.
|
|
-
|
|
- The repository's git-annex branch is not updated, as an optimisation.
|
|
- No caller of onLocal can query data from the branch and be ensured
|
|
- it gets a current value. Caller of onLocal can make changes to
|
|
- the branch, however.
|
|
-}
|
|
onLocal :: Remote -> Annex a -> Annex a
|
|
onLocal r a = do
|
|
m <- Annex.getState Annex.remoteannexstate
|
|
case M.lookup (uuid r) m of
|
|
Nothing -> do
|
|
st <- liftIO $ Annex.new (repo r)
|
|
go st $ do
|
|
Annex.BranchState.disableUpdate
|
|
a
|
|
Just st -> go st a
|
|
where
|
|
cache st = Annex.changeState $ \s -> s
|
|
{ Annex.remoteannexstate = M.insert (uuid r) st (Annex.remoteannexstate s) }
|
|
go st a' = do
|
|
curro <- Annex.getState Annex.output
|
|
(ret, st') <- liftIO $ Annex.run (st { Annex.output = curro }) $
|
|
catFileStop `after` a'
|
|
cache st'
|
|
return ret
|
|
|
|
{- Copys a file with rsync unless both locations are on the same
|
|
- filesystem. Then cp could be faster. -}
|
|
rsyncOrCopyFile :: [CommandParam] -> FilePath -> FilePath -> MeterUpdate -> Annex Bool
|
|
rsyncOrCopyFile rsyncparams src dest p =
|
|
#ifdef mingw32_HOST_OS
|
|
dorsync
|
|
where
|
|
#else
|
|
ifM (sameDeviceIds src dest) (docopy, dorsync)
|
|
where
|
|
sameDeviceIds a b = (==) <$> getDeviceId a <*> getDeviceId b
|
|
getDeviceId f = deviceID <$> liftIO (getFileStatus $ parentDir f)
|
|
docopy = liftIO $ watchFileSize dest p $
|
|
copyFileExternal CopyTimeStamps src dest
|
|
#endif
|
|
dorsync = Ssh.rsyncHelper (Just p) $
|
|
rsyncparams ++ [File src, File dest]
|
|
|
|
commitOnCleanup :: Remote -> Annex a -> Annex a
|
|
commitOnCleanup r a = go `after` a
|
|
where
|
|
go = Annex.addCleanup (RemoteCleanup $ uuid r) cleanup
|
|
cleanup
|
|
| not $ Git.repoIsUrl (repo r) = onLocal r $
|
|
doQuietSideAction $
|
|
Annex.Branch.commit "update"
|
|
| otherwise = void $ do
|
|
Just (shellcmd, shellparams) <-
|
|
Ssh.git_annex_shell (repo r) "commit" [] []
|
|
|
|
-- Throw away stderr, since the remote may not
|
|
-- have a new enough git-annex shell to
|
|
-- support committing.
|
|
liftIO $ catchMaybeIO $
|
|
withQuietOutput createProcessSuccess $
|
|
proc shellcmd $
|
|
toCommand shellparams
|
|
|
|
wantHardLink :: Annex Bool
|
|
wantHardLink = (annexHardLink <$> Annex.getGitConfig)
|
|
-- Not direct mode files because they can be modified at any time.
|
|
<&&> (not <$> isDirect)
|
|
-- Not unlocked files that are hard linked in the work tree,
|
|
-- because they can be modified at any time.
|
|
<&&> (not <$> annexThin <$> Annex.getGitConfig)
|
|
|
|
-- Copies from src to dest, updating a meter. If the copy finishes
|
|
-- successfully, calls a final check action, which must also succeed, or
|
|
-- returns false.
|
|
--
|
|
-- If either the remote or local repository wants to use hard links,
|
|
-- the copier will do so (falling back to copying if a hard link cannot be
|
|
-- made).
|
|
--
|
|
-- When a hard link is created, returns Verified; the repo being linked
|
|
-- from is implicitly trusted, so no expensive verification needs to be
|
|
-- done.
|
|
type Copier = FilePath -> FilePath -> MeterUpdate -> Annex Bool -> Annex (Bool, Verification)
|
|
|
|
mkCopier :: Bool -> [CommandParam] -> Annex Copier
|
|
mkCopier remotewanthardlink rsyncparams = do
|
|
let copier = \src dest p check -> unVerified $
|
|
rsyncOrCopyFile rsyncparams src dest p <&&> check
|
|
localwanthardlink <- wantHardLink
|
|
let linker = \src dest -> createLink src dest >> return True
|
|
ifM (pure (remotewanthardlink || localwanthardlink) <&&> not <$> isDirect)
|
|
( return $ \src dest p check ->
|
|
ifM (liftIO (catchBoolIO (linker src dest)))
|
|
( return (True, Verified)
|
|
, copier src dest p check
|
|
)
|
|
, return copier
|
|
)
|